According to BBC Urdu, the long-running case - which relates to Gen Musharraf's suspension of the constitution in 2007, when he declared an emergency in a move meant to extend his tenure - could still be retried in another court.
The Lahore High Court (LHC) on Monday declared formation of a special court that heard treason case against former president General (retd) Pervez Musharraf as "unconstitutional". Musharraf's defense team had petitioned the high court following the tribunal's conviction last December that the former army general was guilty of imposing emergency laws in violation of the constitution during his rule.
As the court resumed hearing Musharraf's pleas on Monday morning, Additional Attorney General (AAG) Ishtiaq A. Khan, appearing on behalf of the federal government, presented the summary and record of the formation of the special court.
"Gen Musharraf is a free man now", he added.
Gen Musharraf was allowed to leave Pakistan in 2016 and is in Dubai.More news: What's missing from this year's Oscar nominations
Former Pakistani former army chief and president Pervez Musharraf.
Musharraf's lawyer Azhar Sadique hailed the court's verdict, but said "let us see how government reacts".
The trial continued in Musharraf's long absence and the bench was reconstituted six times as judges recused themselves from hearing the case, resulting in the delay.
Musharraf's high treason verdict was met with condemnations from both the federal government, led by the Pakistan Tehreek-e-Insaf, and the armed forces.
Pervez Musharraf pictured in 2007. It proves beyond a shadow of reasonable doubt all the charges of High Treason leveled against accused by the State. Musharraf later served as the country's president from 2001 to 2008.
The former army chief seized power in a 1999 coup, dismissing the government of then Prime Minister Nawaz Sharif.More news: Oscars 2020: Scarlett Johansson and Tom Hanks among nominees
The charges against Musharraf - who was sentenced in absentia on Tuesday - stem from his imposition of a state of emergency in 2007, after which dozens of judges were placed under house arrest or sacked, sparking widespread street protests by lawyers.
On March 30, 2014, the special court had indicted former president but on March 18, 2016, he left for Dubai to "seek medical treatment".
The ex-president refused to respond to the court and departed for United Kingdom after which, his companions launched a political party "All Pakistan Muslim League (APML)" and made him its chairman.
In August 2008, he finally resigned in the face of impeachment proceedings by the new governing coalition, going into exile until his ill-starred homecoming in 2013, exiling himself once more three years later. The case was filed by the PML-N government against Musharraf for suspending the Constitution on November 3, 2007, when he imposed emergency in the country.
In 2017, a Pakistani court pronounced Musharraf a fugitive in the murder trial of Bhutto.More news: Could Red Sox fire Alex Cora over Astros’ cheating scandal?