/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=32.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-08 16:34:50,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-08 16:34:50,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-08 16:34:50,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-08 16:34:50,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-08 16:34:50,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-08 16:34:50,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-08 16:34:50,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-08 16:34:50,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-08 16:34:50,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-08 16:34:50,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-08 16:34:50,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-08 16:34:50,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-08 16:34:50,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-08 16:34:50,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-08 16:34:50,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-08 16:34:50,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-08 16:34:50,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-08 16:34:50,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-08 16:34:50,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-08 16:34:50,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-08 16:34:50,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-08 16:34:50,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-08 16:34:50,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-08 16:34:50,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-08 16:34:50,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-08 16:34:50,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-08 16:34:50,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-08 16:34:50,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-08 16:34:50,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-08 16:34:50,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-08 16:34:50,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-08 16:34:50,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-08 16:34:50,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-08 16:34:50,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-08 16:34:50,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-08 16:34:50,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-08 16:34:50,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-08 16:34:50,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-08 16:34:50,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-08 16:34:50,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-08 16:34:50,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-08 16:34:50,824 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-08 16:34:50,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-08 16:34:50,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-08 16:34:50,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-08 16:34:50,826 INFO L138 SettingsManager]: * Use SBE=true [2020-10-08 16:34:50,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-08 16:34:50,826 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-08 16:34:50,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-08 16:34:50,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-08 16:34:50,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-08 16:34:50,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-08 16:34:50,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-08 16:34:50,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-08 16:34:50,828 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-08 16:34:50,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-08 16:34:50,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-08 16:34:50,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-08 16:34:50,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-08 16:34:50,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-08 16:34:50,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-08 16:34:50,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-08 16:34:50,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-08 16:34:50,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-08 16:34:50,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-08 16:34:50,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-08 16:34:50,830 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-08 16:34:50,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-08 16:34:50,830 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-08 16:34:50,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-08 16:34:50,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-08 16:34:51,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-08 16:34:51,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-08 16:34:51,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-08 16:34:51,175 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-10-08 16:34:51,176 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-10-08 16:34:51,177 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=32.bpl [2020-10-08 16:34:51,178 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=32.bpl' [2020-10-08 16:34:51,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-08 16:34:51,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-08 16:34:51,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-08 16:34:51,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-08 16:34:51,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-08 16:34:51,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-08 16:34:51,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-08 16:34:51,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-08 16:34:51,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-08 16:34:51,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... [2020-10-08 16:34:51,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-08 16:34:51,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-08 16:34:51,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-08 16:34:51,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-08 16:34:51,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-08 16:34:51,446 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread29 given in one single declaration [2020-10-08 16:34:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread29 [2020-10-08 16:34:51,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread29 [2020-10-08 16:34:51,447 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread28 given in one single declaration [2020-10-08 16:34:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread28 [2020-10-08 16:34:51,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread28 [2020-10-08 16:34:51,447 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread25 given in one single declaration [2020-10-08 16:34:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread25 [2020-10-08 16:34:51,448 INFO L138 BoogieDeclarations]: Found implementation of procedure thread25 [2020-10-08 16:34:51,448 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread24 given in one single declaration [2020-10-08 16:34:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread24 [2020-10-08 16:34:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread24 [2020-10-08 16:34:51,449 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread27 given in one single declaration [2020-10-08 16:34:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread27 [2020-10-08 16:34:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread27 [2020-10-08 16:34:51,450 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread26 given in one single declaration [2020-10-08 16:34:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread26 [2020-10-08 16:34:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread26 [2020-10-08 16:34:51,450 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-10-08 16:34:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-10-08 16:34:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-10-08 16:34:51,451 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-10-08 16:34:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-10-08 16:34:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-10-08 16:34:51,452 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread23 given in one single declaration [2020-10-08 16:34:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread23 [2020-10-08 16:34:51,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread23 [2020-10-08 16:34:51,452 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread22 given in one single declaration [2020-10-08 16:34:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread22 [2020-10-08 16:34:51,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread22 [2020-10-08 16:34:51,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-10-08 16:34:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-10-08 16:34:51,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-10-08 16:34:51,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-10-08 16:34:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-10-08 16:34:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-10-08 16:34:51,454 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-10-08 16:34:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-10-08 16:34:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-10-08 16:34:51,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-10-08 16:34:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-08 16:34:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-08 16:34:51,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-10-08 16:34:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-08 16:34:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-08 16:34:51,456 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-10-08 16:34:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-08 16:34:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-08 16:34:51,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-10-08 16:34:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-10-08 16:34:51,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-10-08 16:34:51,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-10-08 16:34:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-10-08 16:34:51,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-10-08 16:34:51,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-10-08 16:34:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-10-08 16:34:51,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-10-08 16:34:51,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-10-08 16:34:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-10-08 16:34:51,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-10-08 16:34:51,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-10-08 16:34:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-10-08 16:34:51,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-10-08 16:34:51,460 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-10-08 16:34:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-10-08 16:34:51,460 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-10-08 16:34:51,460 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread30 given in one single declaration [2020-10-08 16:34:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread30 [2020-10-08 16:34:51,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread30 [2020-10-08 16:34:51,461 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-10-08 16:34:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-10-08 16:34:51,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-10-08 16:34:51,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-10-08 16:34:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-10-08 16:34:51,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-10-08 16:34:51,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-10-08 16:34:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-08 16:34:51,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-08 16:34:51,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-10-08 16:34:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-10-08 16:34:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-10-08 16:34:51,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-10-08 16:34:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-10-08 16:34:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-10-08 16:34:51,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread32 given in one single declaration [2020-10-08 16:34:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread32 [2020-10-08 16:34:51,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread32 [2020-10-08 16:34:51,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-10-08 16:34:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-10-08 16:34:51,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-10-08 16:34:51,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread31 given in one single declaration [2020-10-08 16:34:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread31 [2020-10-08 16:34:51,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread31 [2020-10-08 16:34:51,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-10-08 16:34:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-10-08 16:34:51,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-10-08 16:34:51,467 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-10-08 16:34:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-10-08 16:34:51,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-10-08 16:34:51,469 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-08 16:34:51,877 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-08 16:34:51,878 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-10-08 16:34:51,880 INFO L202 PluginConnector]: Adding new model example2_N=32.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:34:51 BoogieIcfgContainer [2020-10-08 16:34:51,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-08 16:34:51,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-08 16:34:51,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-08 16:34:51,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-08 16:34:51,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:51" (1/2) ... [2020-10-08 16:34:51,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65edecd0 and model type example2_N=32.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:34:51, skipping insertion in model container [2020-10-08 16:34:51,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=32.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:34:51" (2/2) ... [2020-10-08 16:34:51,889 INFO L111 eAbstractionObserver]: Analyzing ICFG example2_N=32.bpl [2020-10-08 16:34:51,909 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-08 16:34:51,919 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-08 16:34:51,920 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-08 16:34:52,472 INFO L253 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2020-10-08 16:34:52,496 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-08 16:34:52,496 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-08 16:34:52,496 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-08 16:34:52,496 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-08 16:34:52,496 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-08 16:34:52,496 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-08 16:34:52,497 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-08 16:34:52,497 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-08 16:34:52,516 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 261 places, 196 transitions, 648 flow [2020-10-08 16:34:52,663 INFO L129 PetriNetUnfolder]: 32/164 cut-off events. [2020-10-08 16:34:52,663 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-10-08 16:34:52,683 INFO L80 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 164 events. 32/164 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 225 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 189. Up to 2 conditions per place. [2020-10-08 16:34:52,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 196 transitions, 648 flow [2020-10-08 16:34:52,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 162 transitions, 516 flow [2020-10-08 16:34:52,795 INFO L129 PetriNetUnfolder]: 32/161 cut-off events. [2020-10-08 16:34:52,796 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-10-08 16:34:52,797 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-08 16:34:52,798 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-08 16:34:52,799 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr26INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr27INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr23INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr24INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr25INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr31INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr28INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr29INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr30INUSE_VIOLATION, ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr17INUSE_VIOLATION, ULTIMATE.startErr16INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr19INUSE_VIOLATION, ULTIMATE.startErr18INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr22INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr21INUSE_VIOLATION, ULTIMATE.startErr20INUSE_VIOLATION]=== [2020-10-08 16:34:52,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-08 16:34:52,806 INFO L82 PathProgramCache]: Analyzing trace with hash -94978120, now seen corresponding path program 1 times [2020-10-08 16:34:52,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-08 16:34:52,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345054648] [2020-10-08 16:34:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-08 16:34:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-08 16:34:53,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 2149 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-08 16:34:53,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-08 16:34:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-08 16:34:53,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-08 16:34:53,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-08 16:34:53,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345054648] [2020-10-08 16:34:53,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-08 16:34:53,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-10-08 16:34:53,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436574232] [2020-10-08 16:34:53,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-08 16:34:53,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-08 16:34:53,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-08 16:34:53,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-08 16:34:54,031 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 196 [2020-10-08 16:34:54,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 162 transitions, 516 flow. Second operand 3 states. [2020-10-08 16:34:54,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-08 16:34:54,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 196 [2020-10-08 16:34:54,037 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-08 16:34:54,119 INFO L129 PetriNetUnfolder]: 32/161 cut-off events. [2020-10-08 16:34:54,120 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-10-08 16:34:54,124 INFO L80 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 161 events. 32/161 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 224 event pairs, 0 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 256. Up to 2 conditions per place. [2020-10-08 16:34:54,126 INFO L132 encePairwiseOnDemand]: 194/196 looper letters, 0 selfloop transitions, 0 changer transitions 161/161 dead transitions. [2020-10-08 16:34:54,126 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 161 transitions, 516 flow [2020-10-08 16:34:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-08 16:34:54,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-08 16:34:54,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2020-10-08 16:34:54,150 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9880952380952381 [2020-10-08 16:34:54,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2020-10-08 16:34:54,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2020-10-08 16:34:54,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-08 16:34:54,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2020-10-08 16:34:54,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-08 16:34:54,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-08 16:34:54,179 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-08 16:34:54,181 INFO L185 Difference]: Start difference. First operand has 227 places, 162 transitions, 516 flow. Second operand 3 states and 581 transitions. [2020-10-08 16:34:54,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 161 transitions, 516 flow [2020-10-08 16:34:54,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 388 flow, removed 0 selfloop flow, removed 64 redundant places. [2020-10-08 16:34:54,193 INFO L241 Difference]: Finished difference. Result has 164 places, 0 transitions, 0 flow [2020-10-08 16:34:54,196 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=164, PETRI_TRANSITIONS=0} [2020-10-08 16:34:54,197 INFO L341 CegarLoopForPetriNet]: 227 programPoint places, -63 predicate places. [2020-10-08 16:34:54,198 INFO L481 AbstractCegarLoop]: Abstraction has has 164 places, 0 transitions, 0 flow [2020-10-08 16:34:54,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-08 16:34:54,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-08 16:34:54,420 INFO L202 PluginConnector]: Adding new model example2_N=32.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 04:34:54 BasicIcfg [2020-10-08 16:34:54,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-08 16:34:54,424 INFO L168 Benchmark]: Toolchain (without parser) took 3191.75 ms. Allocated memory was 250.6 MB in the beginning and 310.4 MB in the end (delta: 59.8 MB). Free memory was 224.5 MB in the beginning and 258.4 MB in the end (delta: -33.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 14.2 GB. [2020-10-08 16:34:54,424 INFO L168 Benchmark]: Boogie PL CUP Parser took 1.05 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 16:34:54,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.23 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 16:34:54,426 INFO L168 Benchmark]: Boogie Preprocessor took 79.88 ms. Allocated memory is still 250.6 MB. Free memory was 224.5 MB in the beginning and 222.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-08 16:34:54,427 INFO L168 Benchmark]: RCFGBuilder took 510.34 ms. Allocated memory is still 250.6 MB. Free memory was 222.0 MB in the beginning and 189.2 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 14.2 GB. [2020-10-08 16:34:54,428 INFO L168 Benchmark]: TraceAbstraction took 2539.29 ms. Allocated memory was 250.6 MB in the beginning and 310.4 MB in the end (delta: 59.8 MB). Free memory was 189.2 MB in the beginning and 258.4 MB in the end (delta: -69.2 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 16:34:54,431 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 1.05 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 52.23 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 79.88 ms. Allocated memory is still 250.6 MB. Free memory was 224.5 MB in the beginning and 222.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 510.34 ms. Allocated memory is still 250.6 MB. Free memory was 222.0 MB in the beginning and 189.2 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2539.29 ms. Allocated memory was 250.6 MB in the beginning and 310.4 MB in the end (delta: 59.8 MB). Free memory was 189.2 MB in the beginning and 258.4 MB in the end (delta: -69.2 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 74]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 33 procedures, 165 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 67 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 129 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=516occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 56454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2149 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...