./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/triangular-longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/triangular-longer-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 13:59:52,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 13:59:52,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-17 13:59:52,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 13:59:52,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 13:59:52,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 13:59:52,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 13:59:52,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 13:59:52,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 13:59:52,903 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 13:59:52,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 13:59:52,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 13:59:52,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 13:59:52,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 13:59:52,905 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 13:59:52,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 13:59:52,906 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 13:59:52,907 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 13:59:52,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 13:59:52,907 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 13:59:52,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 13:59:52,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 13:59:52,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 13:59:52,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 13:59:52,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 13:59:52,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 13:59:52,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 13:59:52,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 13:59:52,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 13:59:52,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 13:59:52,908 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2025-03-17 13:59:53,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 13:59:53,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 13:59:53,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 13:59:53,183 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 13:59:53,183 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 13:59:53,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-1.i [2025-03-17 13:59:54,322 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649354f96/cf8ad4cfa72547bbbbd138eadf6678f6/FLAGc30925168 [2025-03-17 13:59:54,600 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 13:59:54,600 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2025-03-17 13:59:54,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649354f96/cf8ad4cfa72547bbbbd138eadf6678f6/FLAGc30925168 [2025-03-17 13:59:54,624 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649354f96/cf8ad4cfa72547bbbbd138eadf6678f6 [2025-03-17 13:59:54,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 13:59:54,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 13:59:54,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 13:59:54,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 13:59:54,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 13:59:54,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:54,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97286e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54, skipping insertion in model container [2025-03-17 13:59:54,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:54,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 13:59:54,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 13:59:54,924 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 13:59:54,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 13:59:54,996 INFO L204 MainTranslator]: Completed translation [2025-03-17 13:59:54,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54 WrapperNode [2025-03-17 13:59:54,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 13:59:54,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 13:59:54,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 13:59:54,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 13:59:55,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,027 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2025-03-17 13:59:55,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 13:59:55,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 13:59:55,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 13:59:55,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 13:59:55,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,050 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 13:59:55,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,053 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 13:59:55,060 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 13:59:55,060 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 13:59:55,060 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 13:59:55,062 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (1/1) ... [2025-03-17 13:59:55,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 13:59:55,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 13:59:55,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 13:59:55,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 13:59:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-03-17 13:59:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-03-17 13:59:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-03-17 13:59:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-03-17 13:59:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 13:59:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 13:59:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 13:59:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 13:59:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 13:59:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 13:59:55,101 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 13:59:55,176 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 13:59:55,178 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 13:59:55,280 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 13:59:55,280 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 13:59:55,330 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 13:59:55,330 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 13:59:55,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 01:59:55 BoogieIcfgContainer [2025-03-17 13:59:55,331 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 13:59:55,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 13:59:55,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 13:59:55,335 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 13:59:55,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 01:59:54" (1/3) ... [2025-03-17 13:59:55,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7910821d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 01:59:55, skipping insertion in model container [2025-03-17 13:59:55,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:59:54" (2/3) ... [2025-03-17 13:59:55,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7910821d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 01:59:55, skipping insertion in model container [2025-03-17 13:59:55,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 01:59:55" (3/3) ... [2025-03-17 13:59:55,337 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2025-03-17 13:59:55,347 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 13:59:55,348 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longer-1.i that has 3 procedures, 26 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-17 13:59:55,348 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 13:59:55,387 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 13:59:55,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2025-03-17 13:59:55,441 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2025-03-17 13:59:55,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 13:59:55,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 4/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-03-17 13:59:55,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2025-03-17 13:59:55,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2025-03-17 13:59:55,458 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 13:59:55,466 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e6f1ca4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 13:59:55,466 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 13:59:55,473 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 13:59:55,473 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2025-03-17 13:59:55,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 13:59:55,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:55,476 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:55,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:55,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:55,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1190746502, now seen corresponding path program 1 times [2025-03-17 13:59:55,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:55,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078460549] [2025-03-17 13:59:55,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 13:59:55,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:55,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 13:59:55,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 13:59:55,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 13:59:55,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:55,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:55,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078460549] [2025-03-17 13:59:55,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078460549] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:55,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:55,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 13:59:55,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613090121] [2025-03-17 13:59:55,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:55,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 13:59:55,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:55,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 13:59:55,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 13:59:55,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:55,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:55,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:55,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:55,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:55,821 INFO L124 PetriNetUnfolderBase]: 185/359 cut-off events. [2025-03-17 13:59:55,821 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 13:59:55,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 359 events. 185/359 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1574 event pairs, 135 based on Foata normal form. 32/386 useless extension candidates. Maximal degree in co-relation 653. Up to 290 conditions per place. [2025-03-17 13:59:55,825 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 15 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2025-03-17 13:59:55,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 86 flow [2025-03-17 13:59:55,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 13:59:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 13:59:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2025-03-17 13:59:55,837 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2025-03-17 13:59:55,838 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 44 transitions. [2025-03-17 13:59:55,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 86 flow [2025-03-17 13:59:55,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 13:59:55,842 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2025-03-17 13:59:55,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2025-03-17 13:59:55,846 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2025-03-17 13:59:55,847 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2025-03-17 13:59:55,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:55,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:55,848 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:55,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 13:59:55,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:55,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:55,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1190746953, now seen corresponding path program 1 times [2025-03-17 13:59:55,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:55,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687556550] [2025-03-17 13:59:55,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 13:59:55,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:55,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 13:59:55,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 13:59:55,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 13:59:55,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:56,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:56,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:56,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687556550] [2025-03-17 13:59:56,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687556550] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:56,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:56,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 13:59:56,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305908301] [2025-03-17 13:59:56,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:56,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 13:59:56,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:56,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 13:59:56,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 13:59:56,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:56,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:56,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:56,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:56,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:56,169 INFO L124 PetriNetUnfolderBase]: 273/487 cut-off events. [2025-03-17 13:59:56,169 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 13:59:56,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 487 events. 273/487 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1985 event pairs, 45 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 921. Up to 181 conditions per place. [2025-03-17 13:59:56,172 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 25 selfloop transitions, 4 changer transitions 21/54 dead transitions. [2025-03-17 13:59:56,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 54 transitions, 212 flow [2025-03-17 13:59:56,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 13:59:56,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 13:59:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2025-03-17 13:59:56,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2025-03-17 13:59:56,176 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 6 states and 99 transitions. [2025-03-17 13:59:56,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 54 transitions, 212 flow [2025-03-17 13:59:56,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 54 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 13:59:56,178 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 74 flow [2025-03-17 13:59:56,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2025-03-17 13:59:56,180 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2025-03-17 13:59:56,181 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 74 flow [2025-03-17 13:59:56,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:56,181 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:56,181 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:56,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 13:59:56,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:56,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:56,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1318103228, now seen corresponding path program 1 times [2025-03-17 13:59:56,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:56,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130161535] [2025-03-17 13:59:56,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 13:59:56,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:56,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 13:59:56,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 13:59:56,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 13:59:56,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:56,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:56,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130161535] [2025-03-17 13:59:56,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130161535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:56,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:56,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 13:59:56,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209412566] [2025-03-17 13:59:56,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:56,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 13:59:56,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:56,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 13:59:56,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 13:59:56,303 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:56,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:56,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:56,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:56,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:56,488 INFO L124 PetriNetUnfolderBase]: 382/704 cut-off events. [2025-03-17 13:59:56,488 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2025-03-17 13:59:56,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 704 events. 382/704 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3083 event pairs, 65 based on Foata normal form. 27/727 useless extension candidates. Maximal degree in co-relation 1591. Up to 246 conditions per place. [2025-03-17 13:59:56,492 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 9 changer transitions 20/79 dead transitions. [2025-03-17 13:59:56,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 79 transitions, 382 flow [2025-03-17 13:59:56,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 13:59:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 13:59:56,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2025-03-17 13:59:56,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2025-03-17 13:59:56,493 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 74 flow. Second operand 9 states and 144 transitions. [2025-03-17 13:59:56,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 79 transitions, 382 flow [2025-03-17 13:59:56,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 79 transitions, 366 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-17 13:59:56,496 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 159 flow [2025-03-17 13:59:56,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2025-03-17 13:59:56,497 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2025-03-17 13:59:56,497 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 159 flow [2025-03-17 13:59:56,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:56,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:56,497 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:56,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 13:59:56,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:56,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:56,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1201091516, now seen corresponding path program 2 times [2025-03-17 13:59:56,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:56,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433621873] [2025-03-17 13:59:56,499 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 13:59:56,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:56,506 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-03-17 13:59:56,516 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 13:59:56,517 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 13:59:56,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:56,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:56,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433621873] [2025-03-17 13:59:56,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433621873] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:56,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:56,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 13:59:56,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248298743] [2025-03-17 13:59:56,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:56,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 13:59:56,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:56,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 13:59:56,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 13:59:56,632 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:56,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:56,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:56,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:56,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:56,808 INFO L124 PetriNetUnfolderBase]: 328/611 cut-off events. [2025-03-17 13:59:56,808 INFO L125 PetriNetUnfolderBase]: For 971/971 co-relation queries the response was YES. [2025-03-17 13:59:56,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 611 events. 328/611 cut-off events. For 971/971 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2599 event pairs, 65 based on Foata normal form. 45/652 useless extension candidates. Maximal degree in co-relation 1723. Up to 234 conditions per place. [2025-03-17 13:59:56,811 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 38 selfloop transitions, 9 changer transitions 28/79 dead transitions. [2025-03-17 13:59:56,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 499 flow [2025-03-17 13:59:56,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 13:59:56,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 13:59:56,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2025-03-17 13:59:56,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5474137931034483 [2025-03-17 13:59:56,812 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 159 flow. Second operand 8 states and 127 transitions. [2025-03-17 13:59:56,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 499 flow [2025-03-17 13:59:56,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 79 transitions, 491 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-03-17 13:59:56,817 INFO L231 Difference]: Finished difference. Result has 51 places, 34 transitions, 213 flow [2025-03-17 13:59:56,817 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=213, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2025-03-17 13:59:56,818 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2025-03-17 13:59:56,818 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 213 flow [2025-03-17 13:59:56,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:56,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:56,818 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:56,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 13:59:56,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:56,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:56,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1701427140, now seen corresponding path program 1 times [2025-03-17 13:59:56,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:56,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519796894] [2025-03-17 13:59:56,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 13:59:56,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:56,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 13:59:56,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 13:59:56,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 13:59:56,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:56,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:56,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519796894] [2025-03-17 13:59:56,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519796894] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:56,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:56,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 13:59:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380925128] [2025-03-17 13:59:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:56,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 13:59:56,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:56,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 13:59:56,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 13:59:56,945 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:56,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 34 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:56,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:56,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:56,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:57,109 INFO L124 PetriNetUnfolderBase]: 355/662 cut-off events. [2025-03-17 13:59:57,109 INFO L125 PetriNetUnfolderBase]: For 1747/1747 co-relation queries the response was YES. [2025-03-17 13:59:57,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 662 events. 355/662 cut-off events. For 1747/1747 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2886 event pairs, 86 based on Foata normal form. 18/676 useless extension candidates. Maximal degree in co-relation 2046. Up to 258 conditions per place. [2025-03-17 13:59:57,112 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 16 changer transitions 21/84 dead transitions. [2025-03-17 13:59:57,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 600 flow [2025-03-17 13:59:57,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 13:59:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 13:59:57,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2025-03-17 13:59:57,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2025-03-17 13:59:57,114 INFO L175 Difference]: Start difference. First operand has 51 places, 34 transitions, 213 flow. Second operand 9 states and 140 transitions. [2025-03-17 13:59:57,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 600 flow [2025-03-17 13:59:57,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 84 transitions, 530 flow, removed 24 selfloop flow, removed 7 redundant places. [2025-03-17 13:59:57,120 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 300 flow [2025-03-17 13:59:57,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=300, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-03-17 13:59:57,123 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2025-03-17 13:59:57,123 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 300 flow [2025-03-17 13:59:57,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:57,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:57,123 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:57,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 13:59:57,124 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:57,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:57,125 INFO L85 PathProgramCache]: Analyzing trace with hash 661783278, now seen corresponding path program 2 times [2025-03-17 13:59:57,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:57,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62595072] [2025-03-17 13:59:57,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 13:59:57,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:57,131 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-03-17 13:59:57,135 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 13:59:57,136 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 13:59:57,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:57,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:57,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:57,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62595072] [2025-03-17 13:59:57,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62595072] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:57,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:57,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 13:59:57,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707858068] [2025-03-17 13:59:57,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:57,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 13:59:57,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:57,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 13:59:57,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 13:59:57,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:57,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:57,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:57,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:57,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:57,420 INFO L124 PetriNetUnfolderBase]: 427/790 cut-off events. [2025-03-17 13:59:57,420 INFO L125 PetriNetUnfolderBase]: For 2386/2386 co-relation queries the response was YES. [2025-03-17 13:59:57,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2560 conditions, 790 events. 427/790 cut-off events. For 2386/2386 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3490 event pairs, 71 based on Foata normal form. 27/811 useless extension candidates. Maximal degree in co-relation 2536. Up to 223 conditions per place. [2025-03-17 13:59:57,429 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 20 changer transitions 28/95 dead transitions. [2025-03-17 13:59:57,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 710 flow [2025-03-17 13:59:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 13:59:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 13:59:57,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2025-03-17 13:59:57,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2025-03-17 13:59:57,431 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 300 flow. Second operand 10 states and 155 transitions. [2025-03-17 13:59:57,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 710 flow [2025-03-17 13:59:57,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 664 flow, removed 19 selfloop flow, removed 3 redundant places. [2025-03-17 13:59:57,437 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 381 flow [2025-03-17 13:59:57,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=381, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2025-03-17 13:59:57,437 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2025-03-17 13:59:57,438 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 381 flow [2025-03-17 13:59:57,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:57,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:57,438 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:57,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 13:59:57,438 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:57,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:57,439 INFO L85 PathProgramCache]: Analyzing trace with hash -802339876, now seen corresponding path program 1 times [2025-03-17 13:59:57,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:57,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61439221] [2025-03-17 13:59:57,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 13:59:57,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:57,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 13:59:57,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 13:59:57,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 13:59:57,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:57,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:57,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61439221] [2025-03-17 13:59:57,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61439221] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:57,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:57,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 13:59:57,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374574731] [2025-03-17 13:59:57,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:57,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 13:59:57,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:57,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 13:59:57,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 13:59:57,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:57,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 381 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:57,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:57,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:57,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:57,754 INFO L124 PetriNetUnfolderBase]: 454/841 cut-off events. [2025-03-17 13:59:57,754 INFO L125 PetriNetUnfolderBase]: For 3899/3899 co-relation queries the response was YES. [2025-03-17 13:59:57,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3049 conditions, 841 events. 454/841 cut-off events. For 3899/3899 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3784 event pairs, 59 based on Foata normal form. 18/853 useless extension candidates. Maximal degree in co-relation 3020. Up to 157 conditions per place. [2025-03-17 13:59:57,758 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 44 selfloop transitions, 26 changer transitions 23/97 dead transitions. [2025-03-17 13:59:57,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 97 transitions, 833 flow [2025-03-17 13:59:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 13:59:57,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 13:59:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2025-03-17 13:59:57,759 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2025-03-17 13:59:57,759 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 381 flow. Second operand 10 states and 155 transitions. [2025-03-17 13:59:57,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 97 transitions, 833 flow [2025-03-17 13:59:57,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 97 transitions, 790 flow, removed 13 selfloop flow, removed 5 redundant places. [2025-03-17 13:59:57,766 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 476 flow [2025-03-17 13:59:57,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=476, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2025-03-17 13:59:57,767 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 39 predicate places. [2025-03-17 13:59:57,767 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 476 flow [2025-03-17 13:59:57,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:57,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:57,767 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:57,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 13:59:57,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:57,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1177167835, now seen corresponding path program 1 times [2025-03-17 13:59:57,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:57,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371856052] [2025-03-17 13:59:57,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 13:59:57,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:57,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 13:59:57,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 13:59:57,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 13:59:57,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:57,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:57,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371856052] [2025-03-17 13:59:57,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371856052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:57,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:57,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 13:59:57,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308368760] [2025-03-17 13:59:57,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:57,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 13:59:57,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:57,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 13:59:57,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 13:59:57,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:57,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 476 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:57,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:57,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:57,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:58,077 INFO L124 PetriNetUnfolderBase]: 490/914 cut-off events. [2025-03-17 13:59:58,078 INFO L125 PetriNetUnfolderBase]: For 5989/5989 co-relation queries the response was YES. [2025-03-17 13:59:58,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3595 conditions, 914 events. 490/914 cut-off events. For 5989/5989 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4195 event pairs, 149 based on Foata normal form. 27/937 useless extension candidates. Maximal degree in co-relation 3564. Up to 504 conditions per place. [2025-03-17 13:59:58,084 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 53 selfloop transitions, 15 changer transitions 31/103 dead transitions. [2025-03-17 13:59:58,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 103 transitions, 992 flow [2025-03-17 13:59:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 13:59:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-17 13:59:58,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 168 transitions. [2025-03-17 13:59:58,086 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5266457680250783 [2025-03-17 13:59:58,086 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 476 flow. Second operand 11 states and 168 transitions. [2025-03-17 13:59:58,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 103 transitions, 992 flow [2025-03-17 13:59:58,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 103 transitions, 914 flow, removed 22 selfloop flow, removed 7 redundant places. [2025-03-17 13:59:58,108 INFO L231 Difference]: Finished difference. Result has 75 places, 51 transitions, 495 flow [2025-03-17 13:59:58,108 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=495, PETRI_PLACES=75, PETRI_TRANSITIONS=51} [2025-03-17 13:59:58,109 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 45 predicate places. [2025-03-17 13:59:58,109 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 51 transitions, 495 flow [2025-03-17 13:59:58,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:58,109 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:58,109 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:58,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 13:59:58,109 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:58,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:58,110 INFO L85 PathProgramCache]: Analyzing trace with hash 70472077, now seen corresponding path program 2 times [2025-03-17 13:59:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256318758] [2025-03-17 13:59:58,110 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 13:59:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:58,113 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-03-17 13:59:58,116 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 13:59:58,116 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 13:59:58,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:58,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:58,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256318758] [2025-03-17 13:59:58,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256318758] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:58,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:58,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 13:59:58,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401553717] [2025-03-17 13:59:58,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:58,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 13:59:58,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:58,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 13:59:58,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 13:59:58,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:58,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 51 transitions, 495 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:58,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:58,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:58,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:58,484 INFO L124 PetriNetUnfolderBase]: 643/1208 cut-off events. [2025-03-17 13:59:58,484 INFO L125 PetriNetUnfolderBase]: For 10461/10461 co-relation queries the response was YES. [2025-03-17 13:59:58,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 1208 events. 643/1208 cut-off events. For 10461/10461 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5891 event pairs, 122 based on Foata normal form. 27/1231 useless extension candidates. Maximal degree in co-relation 5082. Up to 429 conditions per place. [2025-03-17 13:59:58,492 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 73 selfloop transitions, 25 changer transitions 31/133 dead transitions. [2025-03-17 13:59:58,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 133 transitions, 1319 flow [2025-03-17 13:59:58,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 13:59:58,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-17 13:59:58,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 232 transitions. [2025-03-17 13:59:58,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2025-03-17 13:59:58,494 INFO L175 Difference]: Start difference. First operand has 75 places, 51 transitions, 495 flow. Second operand 15 states and 232 transitions. [2025-03-17 13:59:58,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 133 transitions, 1319 flow [2025-03-17 13:59:58,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 133 transitions, 1148 flow, removed 73 selfloop flow, removed 8 redundant places. [2025-03-17 13:59:58,506 INFO L231 Difference]: Finished difference. Result has 85 places, 57 transitions, 603 flow [2025-03-17 13:59:58,507 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=603, PETRI_PLACES=85, PETRI_TRANSITIONS=57} [2025-03-17 13:59:58,508 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 55 predicate places. [2025-03-17 13:59:58,508 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 57 transitions, 603 flow [2025-03-17 13:59:58,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:58,508 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:58,508 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:58,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 13:59:58,509 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:58,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash 128005687, now seen corresponding path program 3 times [2025-03-17 13:59:58,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:58,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257395716] [2025-03-17 13:59:58,509 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 13:59:58,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:58,518 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 1 equivalence classes. [2025-03-17 13:59:58,521 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 13:59:58,521 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 13:59:58,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:58,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:58,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257395716] [2025-03-17 13:59:58,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257395716] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 13:59:58,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 13:59:58,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 13:59:58,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585510833] [2025-03-17 13:59:58,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 13:59:58,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 13:59:58,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:58,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 13:59:58,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 13:59:58,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:58,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 57 transitions, 603 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:58,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:58,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:58,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:58,897 INFO L124 PetriNetUnfolderBase]: 616/1145 cut-off events. [2025-03-17 13:59:58,898 INFO L125 PetriNetUnfolderBase]: For 11654/11654 co-relation queries the response was YES. [2025-03-17 13:59:58,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5072 conditions, 1145 events. 616/1145 cut-off events. For 11654/11654 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5501 event pairs, 106 based on Foata normal form. 45/1186 useless extension candidates. Maximal degree in co-relation 5034. Up to 316 conditions per place. [2025-03-17 13:59:58,905 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 62 selfloop transitions, 31 changer transitions 41/138 dead transitions. [2025-03-17 13:59:58,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 138 transitions, 1455 flow [2025-03-17 13:59:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 13:59:58,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-17 13:59:58,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 231 transitions. [2025-03-17 13:59:58,906 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5310344827586206 [2025-03-17 13:59:58,906 INFO L175 Difference]: Start difference. First operand has 85 places, 57 transitions, 603 flow. Second operand 15 states and 231 transitions. [2025-03-17 13:59:58,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 138 transitions, 1455 flow [2025-03-17 13:59:58,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 138 transitions, 1291 flow, removed 66 selfloop flow, removed 8 redundant places. [2025-03-17 13:59:58,925 INFO L231 Difference]: Finished difference. Result has 94 places, 60 transitions, 672 flow [2025-03-17 13:59:58,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=672, PETRI_PLACES=94, PETRI_TRANSITIONS=60} [2025-03-17 13:59:58,925 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 64 predicate places. [2025-03-17 13:59:58,925 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 60 transitions, 672 flow [2025-03-17 13:59:58,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:58,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 13:59:58,926 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 13:59:58,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 13:59:58,926 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 13:59:58,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 13:59:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1869791787, now seen corresponding path program 1 times [2025-03-17 13:59:58,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 13:59:58,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106672370] [2025-03-17 13:59:58,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 13:59:58,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 13:59:58,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 13:59:58,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 13:59:58,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 13:59:58,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:59,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:59,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 13:59:59,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106672370] [2025-03-17 13:59:59,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106672370] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 13:59:59,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231411328] [2025-03-17 13:59:59,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 13:59:59,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 13:59:59,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 13:59:59,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 13:59:59,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 13:59:59,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 13:59:59,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 13:59:59,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 13:59:59,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 13:59:59,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 13:59:59,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 13:59:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:59,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 13:59:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 13:59:59,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231411328] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 13:59:59,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 13:59:59,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-03-17 13:59:59,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320357467] [2025-03-17 13:59:59,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 13:59:59,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 13:59:59,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 13:59:59,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 13:59:59,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2025-03-17 13:59:59,333 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 13:59:59,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 60 transitions, 672 flow. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 13:59:59,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 13:59:59,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 13:59:59,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 13:59:59,964 INFO L124 PetriNetUnfolderBase]: 868/1619 cut-off events. [2025-03-17 13:59:59,964 INFO L125 PetriNetUnfolderBase]: For 21663/21663 co-relation queries the response was YES. [2025-03-17 13:59:59,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7850 conditions, 1619 events. 868/1619 cut-off events. For 21663/21663 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8194 event pairs, 32 based on Foata normal form. 72/1687 useless extension candidates. Maximal degree in co-relation 7810. Up to 264 conditions per place. [2025-03-17 13:59:59,977 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 79 selfloop transitions, 56 changer transitions 88/227 dead transitions. [2025-03-17 13:59:59,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 227 transitions, 2543 flow [2025-03-17 13:59:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-17 13:59:59,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-03-17 13:59:59,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 425 transitions. [2025-03-17 13:59:59,980 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5233990147783252 [2025-03-17 13:59:59,980 INFO L175 Difference]: Start difference. First operand has 94 places, 60 transitions, 672 flow. Second operand 28 states and 425 transitions. [2025-03-17 13:59:59,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 227 transitions, 2543 flow [2025-03-17 14:00:00,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 227 transitions, 2384 flow, removed 52 selfloop flow, removed 13 redundant places. [2025-03-17 14:00:00,013 INFO L231 Difference]: Finished difference. Result has 123 places, 78 transitions, 1134 flow [2025-03-17 14:00:00,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1134, PETRI_PLACES=123, PETRI_TRANSITIONS=78} [2025-03-17 14:00:00,014 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 93 predicate places. [2025-03-17 14:00:00,014 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 78 transitions, 1134 flow [2025-03-17 14:00:00,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:00,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:00,014 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:00,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 14:00:00,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-17 14:00:00,219 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:00,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:00,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1698801014, now seen corresponding path program 2 times [2025-03-17 14:00:00,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:00,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662428730] [2025-03-17 14:00:00,220 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:00:00,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:00,225 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-03-17 14:00:00,230 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 14:00:00,230 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:00:00,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:00,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:00,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662428730] [2025-03-17 14:00:00,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662428730] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:00,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738786463] [2025-03-17 14:00:00,334 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:00:00,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:00,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:00,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:00,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:00:00,371 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-03-17 14:00:00,382 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 14:00:00,382 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:00:00,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:00,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 14:00:00,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:00,437 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738786463] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:00,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:00,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-03-17 14:00:00,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259372707] [2025-03-17 14:00:00,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:00,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 14:00:00,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:00,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 14:00:00,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2025-03-17 14:00:00,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:00,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 78 transitions, 1134 flow. Second operand has 17 states, 17 states have (on average 10.117647058823529) internal successors, (172), 17 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:00,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:00,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:00,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:01,544 INFO L124 PetriNetUnfolderBase]: 1390/2614 cut-off events. [2025-03-17 14:00:01,544 INFO L125 PetriNetUnfolderBase]: For 101141/101141 co-relation queries the response was YES. [2025-03-17 14:00:01,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17915 conditions, 2614 events. 1390/2614 cut-off events. For 101141/101141 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14335 event pairs, 50 based on Foata normal form. 90/2700 useless extension candidates. Maximal degree in co-relation 17861. Up to 522 conditions per place. [2025-03-17 14:00:01,564 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 120 selfloop transitions, 88 changer transitions 110/322 dead transitions. [2025-03-17 14:00:01,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 322 transitions, 5369 flow [2025-03-17 14:00:01,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-03-17 14:00:01,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2025-03-17 14:00:01,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 567 transitions. [2025-03-17 14:00:01,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5284249767008388 [2025-03-17 14:00:01,568 INFO L175 Difference]: Start difference. First operand has 123 places, 78 transitions, 1134 flow. Second operand 37 states and 567 transitions. [2025-03-17 14:00:01,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 322 transitions, 5369 flow [2025-03-17 14:00:01,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 322 transitions, 4155 flow, removed 577 selfloop flow, removed 16 redundant places. [2025-03-17 14:00:01,653 INFO L231 Difference]: Finished difference. Result has 160 places, 114 transitions, 1928 flow [2025-03-17 14:00:01,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1928, PETRI_PLACES=160, PETRI_TRANSITIONS=114} [2025-03-17 14:00:01,654 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 130 predicate places. [2025-03-17 14:00:01,654 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 114 transitions, 1928 flow [2025-03-17 14:00:01,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.117647058823529) internal successors, (172), 17 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:01,655 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:01,655 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:01,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 14:00:01,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-17 14:00:01,856 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:01,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:01,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1645902612, now seen corresponding path program 3 times [2025-03-17 14:00:01,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:01,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519682155] [2025-03-17 14:00:01,857 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:00:01,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:01,864 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 5 equivalence classes. [2025-03-17 14:00:01,869 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 14:00:01,869 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-17 14:00:01,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:01,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:01,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519682155] [2025-03-17 14:00:01,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519682155] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:01,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011481770] [2025-03-17 14:00:01,959 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:00:01,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:01,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:01,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:01,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 14:00:01,993 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 5 equivalence classes. [2025-03-17 14:00:02,007 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 14:00:02,007 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-17 14:00:02,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:02,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:00:02,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:02,056 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:02,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011481770] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:02,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:02,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2025-03-17 14:00:02,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120230493] [2025-03-17 14:00:02,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:02,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-17 14:00:02,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:02,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-17 14:00:02,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2025-03-17 14:00:02,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:02,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 114 transitions, 1928 flow. Second operand has 20 states, 20 states have (on average 10.05) internal successors, (201), 20 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:02,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:02,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:02,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:03,359 INFO L124 PetriNetUnfolderBase]: 1795/3431 cut-off events. [2025-03-17 14:00:03,359 INFO L125 PetriNetUnfolderBase]: For 245622/245622 co-relation queries the response was YES. [2025-03-17 14:00:03,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27498 conditions, 3431 events. 1795/3431 cut-off events. For 245622/245622 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 18478 event pairs, 46 based on Foata normal form. 135/3562 useless extension candidates. Maximal degree in co-relation 27427. Up to 714 conditions per place. [2025-03-17 14:00:03,385 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 132 selfloop transitions, 123 changer transitions 134/393 dead transitions. [2025-03-17 14:00:03,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 393 transitions, 8003 flow [2025-03-17 14:00:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-03-17 14:00:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2025-03-17 14:00:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 641 transitions. [2025-03-17 14:00:03,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5262725779967159 [2025-03-17 14:00:03,387 INFO L175 Difference]: Start difference. First operand has 160 places, 114 transitions, 1928 flow. Second operand 42 states and 641 transitions. [2025-03-17 14:00:03,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 393 transitions, 8003 flow [2025-03-17 14:00:03,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 393 transitions, 6303 flow, removed 814 selfloop flow, removed 24 redundant places. [2025-03-17 14:00:03,596 INFO L231 Difference]: Finished difference. Result has 192 places, 149 transitions, 2780 flow [2025-03-17 14:00:03,596 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1368, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=2780, PETRI_PLACES=192, PETRI_TRANSITIONS=149} [2025-03-17 14:00:03,597 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 162 predicate places. [2025-03-17 14:00:03,597 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 149 transitions, 2780 flow [2025-03-17 14:00:03,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.05) internal successors, (201), 20 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:03,597 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:03,598 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:03,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 14:00:03,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:03,799 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:03,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:03,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1498830115, now seen corresponding path program 4 times [2025-03-17 14:00:03,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:03,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547885997] [2025-03-17 14:00:03,800 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:00:03,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:03,807 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 49 statements into 2 equivalence classes. [2025-03-17 14:00:03,814 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 14:00:03,814 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:00:03,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:04,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:04,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547885997] [2025-03-17 14:00:04,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547885997] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:04,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89381981] [2025-03-17 14:00:04,073 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:00:04,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:04,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:04,075 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:04,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 14:00:04,105 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 49 statements into 2 equivalence classes. [2025-03-17 14:00:04,117 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 14:00:04,117 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:00:04,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:04,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-17 14:00:04,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:04,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:04,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89381981] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:04,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:04,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2025-03-17 14:00:04,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887837645] [2025-03-17 14:00:04,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:04,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-17 14:00:04,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:04,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-17 14:00:04,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 14:00:04,539 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:04,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 149 transitions, 2780 flow. Second operand has 34 states, 34 states have (on average 10.029411764705882) internal successors, (341), 34 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:04,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:04,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:04,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:06,062 INFO L124 PetriNetUnfolderBase]: 2209/4162 cut-off events. [2025-03-17 14:00:06,062 INFO L125 PetriNetUnfolderBase]: For 380333/380333 co-relation queries the response was YES. [2025-03-17 14:00:06,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36096 conditions, 4162 events. 2209/4162 cut-off events. For 380333/380333 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 21422 event pairs, 59 based on Foata normal form. 72/4228 useless extension candidates. Maximal degree in co-relation 36013. Up to 840 conditions per place. [2025-03-17 14:00:06,095 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 163 selfloop transitions, 155 changer transitions 129/451 dead transitions. [2025-03-17 14:00:06,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 451 transitions, 9942 flow [2025-03-17 14:00:06,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-17 14:00:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2025-03-17 14:00:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 731 transitions. [2025-03-17 14:00:06,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5251436781609196 [2025-03-17 14:00:06,097 INFO L175 Difference]: Start difference. First operand has 192 places, 149 transitions, 2780 flow. Second operand 48 states and 731 transitions. [2025-03-17 14:00:06,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 451 transitions, 9942 flow [2025-03-17 14:00:06,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 451 transitions, 8334 flow, removed 787 selfloop flow, removed 16 redundant places. [2025-03-17 14:00:06,383 INFO L231 Difference]: Finished difference. Result has 235 places, 183 transitions, 3701 flow [2025-03-17 14:00:06,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2100, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=3701, PETRI_PLACES=235, PETRI_TRANSITIONS=183} [2025-03-17 14:00:06,384 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 205 predicate places. [2025-03-17 14:00:06,384 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 183 transitions, 3701 flow [2025-03-17 14:00:06,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.029411764705882) internal successors, (341), 34 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:06,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:06,384 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:06,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 14:00:06,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:06,585 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:06,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:06,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1221286361, now seen corresponding path program 5 times [2025-03-17 14:00:06,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:06,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163337529] [2025-03-17 14:00:06,586 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:00:06,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:06,596 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 67 statements into 11 equivalence classes. [2025-03-17 14:00:06,648 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:06,648 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 14:00:06,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:07,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:07,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163337529] [2025-03-17 14:00:07,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163337529] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:07,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474473836] [2025-03-17 14:00:07,039 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:00:07,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:07,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:07,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:07,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 14:00:07,076 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 67 statements into 11 equivalence classes. [2025-03-17 14:00:07,096 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:07,096 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 14:00:07,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:07,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-17 14:00:07,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:07,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:07,682 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:07,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474473836] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:07,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:07,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 28 [2025-03-17 14:00:07,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806015347] [2025-03-17 14:00:07,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:07,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-17 14:00:07,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:07,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-17 14:00:07,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2025-03-17 14:00:07,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:07,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 183 transitions, 3701 flow. Second operand has 29 states, 29 states have (on average 10.172413793103448) internal successors, (295), 29 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:07,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:07,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:07,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:08,945 INFO L124 PetriNetUnfolderBase]: 2371/4577 cut-off events. [2025-03-17 14:00:08,945 INFO L125 PetriNetUnfolderBase]: For 546165/546165 co-relation queries the response was YES. [2025-03-17 14:00:08,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41904 conditions, 4577 events. 2371/4577 cut-off events. For 546165/546165 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 24800 event pairs, 965 based on Foata normal form. 63/4636 useless extension candidates. Maximal degree in co-relation 41808. Up to 3276 conditions per place. [2025-03-17 14:00:09,012 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 245 selfloop transitions, 35 changer transitions 99/383 dead transitions. [2025-03-17 14:00:09,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 383 transitions, 9285 flow [2025-03-17 14:00:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-17 14:00:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2025-03-17 14:00:09,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 512 transitions. [2025-03-17 14:00:09,018 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5044334975369458 [2025-03-17 14:00:09,018 INFO L175 Difference]: Start difference. First operand has 235 places, 183 transitions, 3701 flow. Second operand 35 states and 512 transitions. [2025-03-17 14:00:09,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 383 transitions, 9285 flow [2025-03-17 14:00:09,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 383 transitions, 7932 flow, removed 641 selfloop flow, removed 17 redundant places. [2025-03-17 14:00:09,826 INFO L231 Difference]: Finished difference. Result has 271 places, 203 transitions, 3736 flow [2025-03-17 14:00:09,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2855, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=3736, PETRI_PLACES=271, PETRI_TRANSITIONS=203} [2025-03-17 14:00:09,827 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 241 predicate places. [2025-03-17 14:00:09,827 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 203 transitions, 3736 flow [2025-03-17 14:00:09,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.172413793103448) internal successors, (295), 29 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:09,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:09,827 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:09,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 14:00:10,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 14:00:10,028 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:10,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:10,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1699264133, now seen corresponding path program 6 times [2025-03-17 14:00:10,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:10,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23756214] [2025-03-17 14:00:10,029 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:00:10,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:10,035 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 67 statements into 12 equivalence classes. [2025-03-17 14:00:10,053 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:10,054 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-03-17 14:00:10,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:10,421 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:10,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:10,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23756214] [2025-03-17 14:00:10,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23756214] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:10,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243663199] [2025-03-17 14:00:10,422 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:00:10,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:10,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:10,424 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:10,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 14:00:10,456 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 67 statements into 12 equivalence classes. [2025-03-17 14:00:10,477 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:10,477 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-03-17 14:00:10,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:10,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-17 14:00:10,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:10,600 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:10,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243663199] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:10,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:10,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 30 [2025-03-17 14:00:10,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304579228] [2025-03-17 14:00:10,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:10,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-03-17 14:00:10,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:10,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-03-17 14:00:10,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=746, Unknown=0, NotChecked=0, Total=930 [2025-03-17 14:00:10,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:10,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 203 transitions, 3736 flow. Second operand has 31 states, 31 states have (on average 10.161290322580646) internal successors, (315), 31 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:10,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:10,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:10,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:12,405 INFO L124 PetriNetUnfolderBase]: 2695/5316 cut-off events. [2025-03-17 14:00:12,406 INFO L125 PetriNetUnfolderBase]: For 684976/684976 co-relation queries the response was YES. [2025-03-17 14:00:12,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49105 conditions, 5316 events. 2695/5316 cut-off events. For 684976/684976 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 30048 event pairs, 644 based on Foata normal form. 63/5375 useless extension candidates. Maximal degree in co-relation 48990. Up to 2296 conditions per place. [2025-03-17 14:00:12,449 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 220 selfloop transitions, 121 changer transitions 113/458 dead transitions. [2025-03-17 14:00:12,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 458 transitions, 10391 flow [2025-03-17 14:00:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-03-17 14:00:12,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2025-03-17 14:00:12,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 619 transitions. [2025-03-17 14:00:12,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5082101806239737 [2025-03-17 14:00:12,451 INFO L175 Difference]: Start difference. First operand has 271 places, 203 transitions, 3736 flow. Second operand 42 states and 619 transitions. [2025-03-17 14:00:12,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 458 transitions, 10391 flow [2025-03-17 14:00:13,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 458 transitions, 9663 flow, removed 349 selfloop flow, removed 14 redundant places. [2025-03-17 14:00:13,357 INFO L231 Difference]: Finished difference. Result has 308 places, 239 transitions, 4743 flow [2025-03-17 14:00:13,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3302, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=4743, PETRI_PLACES=308, PETRI_TRANSITIONS=239} [2025-03-17 14:00:13,358 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 278 predicate places. [2025-03-17 14:00:13,358 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 239 transitions, 4743 flow [2025-03-17 14:00:13,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.161290322580646) internal successors, (315), 31 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:13,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:13,358 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:13,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 14:00:13,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 14:00:13,559 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:13,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:13,560 INFO L85 PathProgramCache]: Analyzing trace with hash 154098471, now seen corresponding path program 7 times [2025-03-17 14:00:13,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:13,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503019095] [2025-03-17 14:00:13,560 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:00:13,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:13,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 14:00:13,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:13,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:00:13,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:13,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:13,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503019095] [2025-03-17 14:00:13,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503019095] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:13,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843179871] [2025-03-17 14:00:13,960 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:00:13,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:13,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:13,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:13,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 14:00:13,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 14:00:14,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:14,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:00:14,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:14,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-17 14:00:14,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:14,153 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:14,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:14,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843179871] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:14,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:14,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 33 [2025-03-17 14:00:14,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152534844] [2025-03-17 14:00:14,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:14,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-17 14:00:14,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:14,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-17 14:00:14,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 14:00:14,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:14,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 239 transitions, 4743 flow. Second operand has 34 states, 34 states have (on average 10.235294117647058) internal successors, (348), 34 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:14,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:14,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:14,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:16,314 INFO L124 PetriNetUnfolderBase]: 2983/5976 cut-off events. [2025-03-17 14:00:16,314 INFO L125 PetriNetUnfolderBase]: For 906963/906963 co-relation queries the response was YES. [2025-03-17 14:00:16,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58910 conditions, 5976 events. 2983/5976 cut-off events. For 906963/906963 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 34787 event pairs, 332 based on Foata normal form. 63/6035 useless extension candidates. Maximal degree in co-relation 58785. Up to 1359 conditions per place. [2025-03-17 14:00:16,375 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 193 selfloop transitions, 199 changer transitions 121/517 dead transitions. [2025-03-17 14:00:16,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 517 transitions, 12709 flow [2025-03-17 14:00:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-17 14:00:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2025-03-17 14:00:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 685 transitions. [2025-03-17 14:00:16,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5134932533733133 [2025-03-17 14:00:16,376 INFO L175 Difference]: Start difference. First operand has 308 places, 239 transitions, 4743 flow. Second operand 46 states and 685 transitions. [2025-03-17 14:00:16,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 517 transitions, 12709 flow [2025-03-17 14:00:17,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 517 transitions, 11558 flow, removed 540 selfloop flow, removed 21 redundant places. [2025-03-17 14:00:17,763 INFO L231 Difference]: Finished difference. Result has 347 places, 272 transitions, 5984 flow [2025-03-17 14:00:17,764 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4202, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=5984, PETRI_PLACES=347, PETRI_TRANSITIONS=272} [2025-03-17 14:00:17,764 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 317 predicate places. [2025-03-17 14:00:17,764 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 272 transitions, 5984 flow [2025-03-17 14:00:17,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.235294117647058) internal successors, (348), 34 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:17,764 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:17,764 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:17,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 14:00:17,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:17,965 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:17,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:17,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1855443307, now seen corresponding path program 8 times [2025-03-17 14:00:17,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:17,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170580392] [2025-03-17 14:00:17,966 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:00:17,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:17,969 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-03-17 14:00:17,973 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:17,973 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:00:17,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:18,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:18,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170580392] [2025-03-17 14:00:18,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170580392] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:18,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631563924] [2025-03-17 14:00:18,244 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:00:18,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:18,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:18,246 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:18,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 14:00:18,276 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-03-17 14:00:18,290 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:18,291 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:00:18,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:18,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-17 14:00:18,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:18,396 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:18,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:18,633 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:18,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631563924] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:18,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:18,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 31 [2025-03-17 14:00:18,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968774525] [2025-03-17 14:00:18,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:18,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-17 14:00:18,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:18,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-17 14:00:18,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=831, Unknown=0, NotChecked=0, Total=992 [2025-03-17 14:00:18,643 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:18,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 272 transitions, 5984 flow. Second operand has 32 states, 32 states have (on average 10.25) internal successors, (328), 32 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:18,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:18,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:18,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:20,555 INFO L124 PetriNetUnfolderBase]: 3235/6501 cut-off events. [2025-03-17 14:00:20,555 INFO L125 PetriNetUnfolderBase]: For 1133133/1133133 co-relation queries the response was YES. [2025-03-17 14:00:20,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67666 conditions, 6501 events. 3235/6501 cut-off events. For 1133133/1133133 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 38484 event pairs, 170 based on Foata normal form. 63/6560 useless extension candidates. Maximal degree in co-relation 67526. Up to 1503 conditions per place. [2025-03-17 14:00:20,639 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 189 selfloop transitions, 248 changer transitions 131/572 dead transitions. [2025-03-17 14:00:20,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 572 transitions, 14621 flow [2025-03-17 14:00:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-03-17 14:00:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2025-03-17 14:00:20,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 765 transitions. [2025-03-17 14:00:20,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2025-03-17 14:00:20,641 INFO L175 Difference]: Start difference. First operand has 347 places, 272 transitions, 5984 flow. Second operand 51 states and 765 transitions. [2025-03-17 14:00:20,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 572 transitions, 14621 flow [2025-03-17 14:00:22,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 572 transitions, 13104 flow, removed 705 selfloop flow, removed 23 redundant places. [2025-03-17 14:00:22,922 INFO L231 Difference]: Finished difference. Result has 385 places, 297 transitions, 6926 flow [2025-03-17 14:00:22,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=5259, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=6926, PETRI_PLACES=385, PETRI_TRANSITIONS=297} [2025-03-17 14:00:22,923 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 355 predicate places. [2025-03-17 14:00:22,923 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 297 transitions, 6926 flow [2025-03-17 14:00:22,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.25) internal successors, (328), 32 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:22,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:22,923 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:22,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 14:00:23,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 14:00:23,124 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:23,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:23,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1368427361, now seen corresponding path program 9 times [2025-03-17 14:00:23,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:23,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141542916] [2025-03-17 14:00:23,125 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:00:23,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:23,130 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 67 statements into 9 equivalence classes. [2025-03-17 14:00:23,150 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:23,150 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-17 14:00:23,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:23,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:23,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141542916] [2025-03-17 14:00:23,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141542916] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:23,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935502287] [2025-03-17 14:00:23,412 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:00:23,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:23,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:23,413 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:23,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 14:00:23,447 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 67 statements into 9 equivalence classes. [2025-03-17 14:00:23,462 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 14:00:23,462 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-17 14:00:23,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:23,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-17 14:00:23,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 1 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:23,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935502287] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:23,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 33 [2025-03-17 14:00:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83651730] [2025-03-17 14:00:23,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:23,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-17 14:00:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:23,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-17 14:00:23,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 14:00:23,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:23,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 297 transitions, 6926 flow. Second operand has 34 states, 34 states have (on average 10.205882352941176) internal successors, (347), 34 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:23,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:23,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:23,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:26,370 INFO L124 PetriNetUnfolderBase]: 3550/7083 cut-off events. [2025-03-17 14:00:26,370 INFO L125 PetriNetUnfolderBase]: For 1271626/1271626 co-relation queries the response was YES. [2025-03-17 14:00:26,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75490 conditions, 7083 events. 3550/7083 cut-off events. For 1271626/1271626 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 42384 event pairs, 92 based on Foata normal form. 72/7151 useless extension candidates. Maximal degree in co-relation 75338. Up to 1635 conditions per place. [2025-03-17 14:00:26,451 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 196 selfloop transitions, 287 changer transitions 146/633 dead transitions. [2025-03-17 14:00:26,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 633 transitions, 16816 flow [2025-03-17 14:00:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-03-17 14:00:26,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2025-03-17 14:00:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 861 transitions. [2025-03-17 14:00:26,452 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5208711433756806 [2025-03-17 14:00:26,452 INFO L175 Difference]: Start difference. First operand has 385 places, 297 transitions, 6926 flow. Second operand 57 states and 861 transitions. [2025-03-17 14:00:26,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 633 transitions, 16816 flow [2025-03-17 14:00:28,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 633 transitions, 15574 flow, removed 522 selfloop flow, removed 28 redundant places. [2025-03-17 14:00:28,804 INFO L231 Difference]: Finished difference. Result has 425 places, 321 transitions, 8082 flow [2025-03-17 14:00:28,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6128, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=8082, PETRI_PLACES=425, PETRI_TRANSITIONS=321} [2025-03-17 14:00:28,805 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 395 predicate places. [2025-03-17 14:00:28,805 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 321 transitions, 8082 flow [2025-03-17 14:00:28,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.205882352941176) internal successors, (347), 34 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:28,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:28,806 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:28,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 14:00:29,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:29,006 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:29,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash -203776745, now seen corresponding path program 10 times [2025-03-17 14:00:29,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:29,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79094072] [2025-03-17 14:00:29,007 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:00:29,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:29,015 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 70 statements into 2 equivalence classes. [2025-03-17 14:00:29,021 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 14:00:29,021 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:00:29,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:29,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:29,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79094072] [2025-03-17 14:00:29,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79094072] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:29,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119233703] [2025-03-17 14:00:29,285 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:00:29,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:29,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:29,287 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:29,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 14:00:29,317 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 70 statements into 2 equivalence classes. [2025-03-17 14:00:29,331 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 14:00:29,332 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:00:29,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:29,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 14:00:29,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:29,402 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:29,402 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:29,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119233703] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:29,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:29,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 24 [2025-03-17 14:00:29,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509878361] [2025-03-17 14:00:29,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:29,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-17 14:00:29,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:29,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-17 14:00:29,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2025-03-17 14:00:29,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:29,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 321 transitions, 8082 flow. Second operand has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:29,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:29,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:29,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:31,654 INFO L124 PetriNetUnfolderBase]: 3586/7244 cut-off events. [2025-03-17 14:00:31,654 INFO L125 PetriNetUnfolderBase]: For 1544159/1544159 co-relation queries the response was YES. [2025-03-17 14:00:31,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80461 conditions, 7244 events. 3586/7244 cut-off events. For 1544159/1544159 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 44014 event pairs, 257 based on Foata normal form. 27/7265 useless extension candidates. Maximal degree in co-relation 80296. Up to 1677 conditions per place. [2025-03-17 14:00:31,754 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 207 selfloop transitions, 270 changer transitions 99/580 dead transitions. [2025-03-17 14:00:31,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 580 transitions, 15992 flow [2025-03-17 14:00:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-03-17 14:00:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2025-03-17 14:00:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 677 transitions. [2025-03-17 14:00:31,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5187739463601533 [2025-03-17 14:00:31,756 INFO L175 Difference]: Start difference. First operand has 425 places, 321 transitions, 8082 flow. Second operand 45 states and 677 transitions. [2025-03-17 14:00:31,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 580 transitions, 15992 flow [2025-03-17 14:00:35,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 580 transitions, 13609 flow, removed 1003 selfloop flow, removed 43 redundant places. [2025-03-17 14:00:35,271 INFO L231 Difference]: Finished difference. Result has 425 places, 336 transitions, 8002 flow [2025-03-17 14:00:35,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6795, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=8002, PETRI_PLACES=425, PETRI_TRANSITIONS=336} [2025-03-17 14:00:35,272 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 395 predicate places. [2025-03-17 14:00:35,272 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 336 transitions, 8002 flow [2025-03-17 14:00:35,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:35,273 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:35,273 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:35,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 14:00:35,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:35,478 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:35,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:35,479 INFO L85 PathProgramCache]: Analyzing trace with hash 117386891, now seen corresponding path program 11 times [2025-03-17 14:00:35,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:35,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376760651] [2025-03-17 14:00:35,479 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:00:35,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:35,491 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 70 statements into 10 equivalence classes. [2025-03-17 14:00:35,503 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 14:00:35,503 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-03-17 14:00:35,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 1 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:35,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:35,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376760651] [2025-03-17 14:00:35,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376760651] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:35,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132051788] [2025-03-17 14:00:35,835 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:00:35,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:35,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:35,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:35,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 14:00:35,872 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 70 statements into 10 equivalence classes. [2025-03-17 14:00:35,888 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 14:00:35,888 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-03-17 14:00:35,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:35,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 14:00:35,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:35,967 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 1 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:35,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:36,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132051788] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:36,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:36,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 26 [2025-03-17 14:00:36,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775177454] [2025-03-17 14:00:36,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:36,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-17 14:00:36,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:36,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-17 14:00:36,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2025-03-17 14:00:36,142 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:36,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 336 transitions, 8002 flow. Second operand has 27 states, 27 states have (on average 10.0) internal successors, (270), 27 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:36,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:36,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:36,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:38,434 INFO L124 PetriNetUnfolderBase]: 3640/7365 cut-off events. [2025-03-17 14:00:38,434 INFO L125 PetriNetUnfolderBase]: For 1301191/1301191 co-relation queries the response was YES. [2025-03-17 14:00:38,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75971 conditions, 7365 events. 3640/7365 cut-off events. For 1301191/1301191 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 45026 event pairs, 182 based on Foata normal form. 27/7388 useless extension candidates. Maximal degree in co-relation 75809. Up to 1701 conditions per place. [2025-03-17 14:00:38,523 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 211 selfloop transitions, 284 changer transitions 103/602 dead transitions. [2025-03-17 14:00:38,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 602 transitions, 15060 flow [2025-03-17 14:00:38,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-17 14:00:38,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2025-03-17 14:00:38,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 723 transitions. [2025-03-17 14:00:38,525 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193965517241379 [2025-03-17 14:00:38,525 INFO L175 Difference]: Start difference. First operand has 425 places, 336 transitions, 8002 flow. Second operand 48 states and 723 transitions. [2025-03-17 14:00:38,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 602 transitions, 15060 flow [2025-03-17 14:00:41,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 602 transitions, 13877 flow, removed 378 selfloop flow, removed 38 redundant places. [2025-03-17 14:00:41,591 INFO L231 Difference]: Finished difference. Result has 437 places, 343 transitions, 8256 flow [2025-03-17 14:00:41,591 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7235, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=8256, PETRI_PLACES=437, PETRI_TRANSITIONS=343} [2025-03-17 14:00:41,592 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 407 predicate places. [2025-03-17 14:00:41,592 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 343 transitions, 8256 flow [2025-03-17 14:00:41,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.0) internal successors, (270), 27 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:41,592 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:41,592 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:41,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 14:00:41,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-03-17 14:00:41,793 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:41,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1504449877, now seen corresponding path program 12 times [2025-03-17 14:00:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:41,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800904587] [2025-03-17 14:00:41,794 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:00:41,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:41,798 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 70 statements into 9 equivalence classes. [2025-03-17 14:00:41,807 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 14:00:41,807 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-17 14:00:41,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:42,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:42,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800904587] [2025-03-17 14:00:42,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800904587] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:42,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595683768] [2025-03-17 14:00:42,066 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:00:42,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:42,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:42,068 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:42,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 14:00:42,097 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 70 statements into 9 equivalence classes. [2025-03-17 14:00:42,113 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 14:00:42,113 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-17 14:00:42,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:42,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 14:00:42,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:42,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:42,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595683768] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:42,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:42,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 24 [2025-03-17 14:00:42,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281419574] [2025-03-17 14:00:42,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:42,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-17 14:00:42,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:42,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-17 14:00:42,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2025-03-17 14:00:42,364 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:42,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 343 transitions, 8256 flow. Second operand has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:42,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:42,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:42,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:44,725 INFO L124 PetriNetUnfolderBase]: 3811/7687 cut-off events. [2025-03-17 14:00:44,726 INFO L125 PetriNetUnfolderBase]: For 1313210/1313210 co-relation queries the response was YES. [2025-03-17 14:00:44,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79173 conditions, 7687 events. 3811/7687 cut-off events. For 1313210/1313210 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 47322 event pairs, 173 based on Foata normal form. 27/7708 useless extension candidates. Maximal degree in co-relation 79008. Up to 1767 conditions per place. [2025-03-17 14:00:44,828 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 220 selfloop transitions, 292 changer transitions 95/611 dead transitions. [2025-03-17 14:00:44,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 611 transitions, 15595 flow [2025-03-17 14:00:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-17 14:00:44,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2025-03-17 14:00:44,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 713 transitions. [2025-03-17 14:00:44,832 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5231107850330154 [2025-03-17 14:00:44,832 INFO L175 Difference]: Start difference. First operand has 437 places, 343 transitions, 8256 flow. Second operand 47 states and 713 transitions. [2025-03-17 14:00:44,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 611 transitions, 15595 flow [2025-03-17 14:00:47,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 611 transitions, 14700 flow, removed 197 selfloop flow, removed 43 redundant places. [2025-03-17 14:00:47,816 INFO L231 Difference]: Finished difference. Result has 444 places, 351 transitions, 8726 flow [2025-03-17 14:00:47,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7483, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=284, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=8726, PETRI_PLACES=444, PETRI_TRANSITIONS=351} [2025-03-17 14:00:47,816 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 414 predicate places. [2025-03-17 14:00:47,816 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 351 transitions, 8726 flow [2025-03-17 14:00:47,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:47,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:47,817 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:47,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 14:00:48,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-17 14:00:48,017 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:48,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:48,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1703658945, now seen corresponding path program 13 times [2025-03-17 14:00:48,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:48,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248802870] [2025-03-17 14:00:48,018 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:00:48,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:48,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 14:00:48,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 14:00:48,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:00:48,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:48,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:48,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248802870] [2025-03-17 14:00:48,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248802870] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:48,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888310936] [2025-03-17 14:00:48,247 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:00:48,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:48,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:48,249 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:48,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 14:00:48,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 14:00:48,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 14:00:48,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:00:48,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:48,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 14:00:48,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:48,359 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:00:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:00:48,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888310936] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:00:48,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:00:48,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 25 [2025-03-17 14:00:48,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613674762] [2025-03-17 14:00:48,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:00:48,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-17 14:00:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:48,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-17 14:00:48,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2025-03-17 14:00:48,530 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:48,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 351 transitions, 8726 flow. Second operand has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 26 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:48,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:48,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:48,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:00:50,976 INFO L124 PetriNetUnfolderBase]: 3757/7607 cut-off events. [2025-03-17 14:00:50,976 INFO L125 PetriNetUnfolderBase]: For 1394437/1394437 co-relation queries the response was YES. [2025-03-17 14:00:51,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79854 conditions, 7607 events. 3757/7607 cut-off events. For 1394437/1394437 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 46857 event pairs, 164 based on Foata normal form. 45/7648 useless extension candidates. Maximal degree in co-relation 79685. Up to 1743 conditions per place. [2025-03-17 14:00:51,116 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 211 selfloop transitions, 295 changer transitions 107/617 dead transitions. [2025-03-17 14:00:51,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 617 transitions, 16063 flow [2025-03-17 14:00:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-17 14:00:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2025-03-17 14:00:51,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 725 transitions. [2025-03-17 14:00:51,117 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2025-03-17 14:00:51,117 INFO L175 Difference]: Start difference. First operand has 444 places, 351 transitions, 8726 flow. Second operand 48 states and 725 transitions. [2025-03-17 14:00:51,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 617 transitions, 16063 flow [2025-03-17 14:00:54,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 617 transitions, 14953 flow, removed 330 selfloop flow, removed 39 redundant places. [2025-03-17 14:00:54,631 INFO L231 Difference]: Finished difference. Result has 454 places, 353 transitions, 8749 flow [2025-03-17 14:00:54,632 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7940, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=293, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=8749, PETRI_PLACES=454, PETRI_TRANSITIONS=353} [2025-03-17 14:00:54,634 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 424 predicate places. [2025-03-17 14:00:54,634 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 353 transitions, 8749 flow [2025-03-17 14:00:54,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 26 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:54,635 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:00:54,635 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:00:54,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 14:00:54,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-17 14:00:54,835 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:00:54,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:00:54,836 INFO L85 PathProgramCache]: Analyzing trace with hash 188137675, now seen corresponding path program 14 times [2025-03-17 14:00:54,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:00:54,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241921010] [2025-03-17 14:00:54,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:00:54,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:00:54,841 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-03-17 14:00:54,844 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 14:00:54,844 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:00:54,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 213 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 14:00:54,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:00:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241921010] [2025-03-17 14:00:54,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241921010] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:00:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899775097] [2025-03-17 14:00:54,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:00:54,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:00:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:00:54,950 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:00:54,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 14:00:54,986 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-03-17 14:00:55,002 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 14:00:55,002 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:00:55,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:00:55,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:00:55,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:00:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 14:00:55,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:00:55,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899775097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:00:55,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:00:55,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2025-03-17 14:00:55,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796477230] [2025-03-17 14:00:55,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:00:55,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 14:00:55,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:00:55,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 14:00:55,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:00:55,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:00:55,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 353 transitions, 8749 flow. Second operand has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:00:55,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:00:55,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:00:55,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:01:02,859 INFO L124 PetriNetUnfolderBase]: 20125/34489 cut-off events. [2025-03-17 14:01:02,860 INFO L125 PetriNetUnfolderBase]: For 5275245/5275245 co-relation queries the response was YES. [2025-03-17 14:01:03,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319551 conditions, 34489 events. 20125/34489 cut-off events. For 5275245/5275245 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 251529 event pairs, 335 based on Foata normal form. 0/30899 useless extension candidates. Maximal degree in co-relation 319385. Up to 6638 conditions per place. [2025-03-17 14:01:03,926 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 105 selfloop transitions, 12 changer transitions 1801/1921 dead transitions. [2025-03-17 14:01:03,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 1921 transitions, 46926 flow [2025-03-17 14:01:03,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 14:01:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-17 14:01:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 251 transitions. [2025-03-17 14:01:03,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6657824933687002 [2025-03-17 14:01:03,928 INFO L175 Difference]: Start difference. First operand has 454 places, 353 transitions, 8749 flow. Second operand 13 states and 251 transitions. [2025-03-17 14:01:03,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 1921 transitions, 46926 flow [2025-03-17 14:01:15,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1921 transitions, 42378 flow, removed 521 selfloop flow, removed 59 redundant places. [2025-03-17 14:01:15,586 INFO L231 Difference]: Finished difference. Result has 399 places, 51 transitions, 678 flow [2025-03-17 14:01:15,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6637, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=678, PETRI_PLACES=399, PETRI_TRANSITIONS=51} [2025-03-17 14:01:15,586 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 369 predicate places. [2025-03-17 14:01:15,587 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 51 transitions, 678 flow [2025-03-17 14:01:15,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:01:15,587 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:01:15,587 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:01:15,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-17 14:01:15,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:01:15,787 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-17 14:01:15,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:01:15,788 INFO L85 PathProgramCache]: Analyzing trace with hash 285894214, now seen corresponding path program 15 times [2025-03-17 14:01:15,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:01:15,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929043441] [2025-03-17 14:01:15,789 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:01:15,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:01:15,794 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 73 statements into 13 equivalence classes. [2025-03-17 14:01:15,801 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 14:01:15,802 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-03-17 14:01:15,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:01:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 14:01:15,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:01:15,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929043441] [2025-03-17 14:01:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929043441] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:01:15,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:01:15,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 14:01:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907520705] [2025-03-17 14:01:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:01:15,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 14:01:15,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:01:15,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 14:01:15,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2025-03-17 14:01:15,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-03-17 14:01:15,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 51 transitions, 678 flow. Second operand has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:01:15,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:01:15,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-03-17 14:01:15,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:01:16,530 INFO L124 PetriNetUnfolderBase]: 1964/3426 cut-off events. [2025-03-17 14:01:16,530 INFO L125 PetriNetUnfolderBase]: For 197973/197973 co-relation queries the response was YES. [2025-03-17 14:01:16,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19719 conditions, 3426 events. 1964/3426 cut-off events. For 197973/197973 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 16618 event pairs, 48 based on Foata normal form. 0/3066 useless extension candidates. Maximal degree in co-relation 19568. Up to 671 conditions per place. [2025-03-17 14:01:16,562 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 0 selfloop transitions, 0 changer transitions 271/271 dead transitions. [2025-03-17 14:01:16,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 271 transitions, 3873 flow [2025-03-17 14:01:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 14:01:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-17 14:01:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 205 transitions. [2025-03-17 14:01:16,563 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5437665782493368 [2025-03-17 14:01:16,563 INFO L175 Difference]: Start difference. First operand has 399 places, 51 transitions, 678 flow. Second operand 13 states and 205 transitions. [2025-03-17 14:01:16,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 271 transitions, 3873 flow [2025-03-17 14:01:16,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 271 transitions, 1960 flow, removed 597 selfloop flow, removed 89 redundant places. [2025-03-17 14:01:16,624 INFO L231 Difference]: Finished difference. Result has 157 places, 0 transitions, 0 flow [2025-03-17 14:01:16,625 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=157, PETRI_TRANSITIONS=0} [2025-03-17 14:01:16,625 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 127 predicate places. [2025-03-17 14:01:16,625 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 0 transitions, 0 flow [2025-03-17 14:01:16,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:01:16,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-03-17 14:01:16,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-03-17 14:01:16,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-17 14:01:16,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-17 14:01:16,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-17 14:01:16,629 INFO L422 BasicCegarLoop]: Path program histogram: [15, 3, 2, 2, 1, 1, 1] [2025-03-17 14:01:16,632 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 14:01:16,632 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 14:01:16,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:01:16 BasicIcfg [2025-03-17 14:01:16,635 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 14:01:16,636 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 14:01:16,636 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 14:01:16,636 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 14:01:16,636 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 01:59:55" (3/4) ... [2025-03-17 14:01:16,638 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 14:01:16,640 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t1 [2025-03-17 14:01:16,640 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t2 [2025-03-17 14:01:16,642 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-03-17 14:01:16,642 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-17 14:01:16,642 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-17 14:01:16,642 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-17 14:01:16,642 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 14:01:16,690 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 14:01:16,690 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 14:01:16,690 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 14:01:16,691 INFO L158 Benchmark]: Toolchain (without parser) took 82062.87ms. Allocated memory was 142.6MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 114.9MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2025-03-17 14:01:16,692 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 226.5MB. Free memory was 146.8MB in the beginning and 146.5MB in the end (delta: 293.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:01:16,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.40ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 95.9MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:01:16,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.30ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 94.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:01:16,693 INFO L158 Benchmark]: Boogie Preprocessor took 30.31ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 93.0MB in the end (delta: 980.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:01:16,694 INFO L158 Benchmark]: IcfgBuilder took 270.88ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 74.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 14:01:16,694 INFO L158 Benchmark]: TraceAbstraction took 81302.85ms. Allocated memory was 142.6MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 74.3MB in the beginning and 3.8GB in the end (delta: -3.8GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2025-03-17 14:01:16,694 INFO L158 Benchmark]: Witness Printer took 54.75ms. Allocated memory is still 5.2GB. Free memory was 3.8GB in the beginning and 3.8GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:01:16,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 226.5MB. Free memory was 146.8MB in the beginning and 146.5MB in the end (delta: 293.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.40ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 95.9MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.30ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 94.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.31ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 93.0MB in the end (delta: 980.7kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 270.88ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 74.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 81302.85ms. Allocated memory was 142.6MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 74.3MB in the beginning and 3.8GB in the end (delta: -3.8GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. * Witness Printer took 54.75ms. Allocated memory is still 5.2GB. Free memory was 3.8GB in the beginning and 3.8GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 38 locations, 41 edges, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 81.2s, OverallIterations: 25, TraceHistogramMax: 11, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 68.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9085 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9075 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 566 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9737 IncrementalHoareTripleChecker+Invalid, 10303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 566 mSolverCounterUnsat, 3 mSDtfsCounter, 9737 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2411 GetRequests, 1374 SyntacticMatches, 93 SemanticMatches, 944 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15786 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8749occurred in iteration=23, InterpolantAutomatonStates: 696, 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, 0.5s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 1851 NumberOfCodeBlocks, 1851 NumberOfCodeBlocksAsserted, 161 NumberOfCheckSat, 2538 ConstructedInterpolants, 0 QuantifiedInterpolants, 10369 SizeOfPredicates, 216 NumberOfNonLiveVariables, 2184 ConjunctsInSsa, 293 ConjunctsInUnsatCore, 52 InterpolantComputations, 12 PerfectInterpolantSequences, 743/5598 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 14:01:16,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE