/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:40:21,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:40:21,305 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 19:40:21,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:40:21,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:40:21,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:40:21,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:40:21,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:40:21,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:40:21,333 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:40:21,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:40:21,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:40:21,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:40:21,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:40:21,334 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:40:21,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:40:21,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:40:21,334 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:40:21,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:40:21,334 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:40:21,335 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:40:21,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:40:21,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:40:21,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:40:21,336 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET [2025-04-13 19:40:21,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:40:21,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:40:21,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:40:21,561 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:40:21,561 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:40:21,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2025-04-13 19:40:22,838 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176542e7f/29064661177b4e7bb54251355373a58d/FLAG294360c05 [2025-04-13 19:40:23,139 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:40:23,140 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2025-04-13 19:40:23,162 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176542e7f/29064661177b4e7bb54251355373a58d/FLAG294360c05 [2025-04-13 19:40:23,888 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176542e7f/29064661177b4e7bb54251355373a58d [2025-04-13 19:40:23,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:40:23,891 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:40:23,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:40:23,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:40:23,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:40:23,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:40:23" (1/1) ... [2025-04-13 19:40:23,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53570f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:23, skipping insertion in model container [2025-04-13 19:40:23,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:40:23" (1/1) ... [2025-04-13 19:40:23,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:40:24,094 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2025-04-13 19:40:24,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:40:24,301 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:40:24,318 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2025-04-13 19:40:24,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:40:24,411 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:40:24,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24 WrapperNode [2025-04-13 19:40:24,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:40:24,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:40:24,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:40:24,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:40:24,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,451 INFO L138 Inliner]: procedures = 354, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2025-04-13 19:40:24,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:40:24,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:40:24,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:40:24,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:40:24,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,477 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-04-13 19:40:24,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,483 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:40:24,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:40:24,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:40:24,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:40:24,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (1/1) ... [2025-04-13 19:40:24,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:40:24,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:40:24,527 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) [2025-04-13 19:40:24,530 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 [2025-04-13 19:40:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2025-04-13 19:40:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2025-04-13 19:40:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2025-04-13 19:40:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2025-04-13 19:40:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-13 19:40:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-13 19:40:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:40:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:40:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 19:40:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:40:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:40:24,547 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 19:40:24,751 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:40:24,752 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:40:24,922 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:40:24,922 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:40:24,922 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:40:25,726 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 19:40:25,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:40:25 BoogieIcfgContainer [2025-04-13 19:40:25,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:40:25,729 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:40:25,729 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:40:25,733 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:40:25,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:40:23" (1/3) ... [2025-04-13 19:40:25,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31aea856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:40:25, skipping insertion in model container [2025-04-13 19:40:25,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:24" (2/3) ... [2025-04-13 19:40:25,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31aea856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:40:25, skipping insertion in model container [2025-04-13 19:40:25,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:40:25" (3/3) ... [2025-04-13 19:40:25,735 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2025-04-13 19:40:25,746 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:40:25,747 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_67-pthread_cond_wait_true.i that has 3 procedures, 25 locations, 22 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 19:40:25,747 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:40:25,786 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 19:40:25,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 24 transitions, 62 flow [2025-04-13 19:40:25,837 INFO L116 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-04-13 19:40:25,840 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 19:40:25,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 0/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-13 19:40:25,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 24 transitions, 62 flow [2025-04-13 19:40:25,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 16 transitions, 38 flow [2025-04-13 19:40:25,849 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:40:25,856 INFO L340 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=LoopHeads, 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;@396ef99c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:40:25,856 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-13 19:40:25,864 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:40:25,864 INFO L116 PetriNetUnfolderBase]: 0/14 cut-off events. [2025-04-13 19:40:25,864 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:40:25,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:40:25,864 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:40:25,865 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:40:25,870 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:40:25,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1184549112, now seen corresponding path program 1 times [2025-04-13 19:40:25,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:40:25,876 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745827698] [2025-04-13 19:40:25,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:40:25,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:40:26,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-13 19:40:26,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-13 19:40:26,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:40:26,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:40:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:40:26,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:40:26,507 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745827698] [2025-04-13 19:40:26,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745827698] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:40:26,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:40:26,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 19:40:26,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309661637] [2025-04-13 19:40:26,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:40:26,514 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 19:40:26,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:40:26,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 19:40:26,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 19:40:26,534 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-04-13 19:40:26,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2025-04-13 19:40:26,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:40:26,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-04-13 19:40:26,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:40:26,637 INFO L116 PetriNetUnfolderBase]: 86/174 cut-off events. [2025-04-13 19:40:26,637 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-13 19:40:26,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 174 events. 86/174 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 607 event pairs, 35 based on Foata normal form. 12/185 useless extension candidates. Maximal degree in co-relation 351. Up to 97 conditions per place. [2025-04-13 19:40:26,641 INFO L140 encePairwiseOnDemand]: 21/24 looper letters, 18 selfloop transitions, 2 changer transitions 3/25 dead transitions. [2025-04-13 19:40:26,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 105 flow [2025-04-13 19:40:26,642 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 19:40:26,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-13 19:40:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2025-04-13 19:40:26,651 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-04-13 19:40:26,652 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 38 flow. Second operand 3 states and 36 transitions. [2025-04-13 19:40:26,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 105 flow [2025-04-13 19:40:26,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 25 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-13 19:40:26,658 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 44 flow [2025-04-13 19:40:26,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2025-04-13 19:40:26,661 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2025-04-13 19:40:26,661 INFO L485 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 44 flow [2025-04-13 19:40:26,662 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2025-04-13 19:40:26,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:40:26,662 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:40:26,662 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:40:26,662 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:40:26,662 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:40:26,662 INFO L85 PathProgramCache]: Analyzing trace with hash -89610034, now seen corresponding path program 1 times [2025-04-13 19:40:26,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:40:26,663 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740826893] [2025-04-13 19:40:26,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:40:26,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:40:26,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-13 19:40:26,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-13 19:40:26,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:40:26,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:40:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:40:27,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:40:27,024 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740826893] [2025-04-13 19:40:27,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740826893] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:40:27,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:40:27,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:40:27,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684793975] [2025-04-13 19:40:27,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:40:27,025 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 19:40:27,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:40:27,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 19:40:27,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 19:40:27,026 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-04-13 19:40:27,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-04-13 19:40:27,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:40:27,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-04-13 19:40:27,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:40:27,117 INFO L116 PetriNetUnfolderBase]: 25/66 cut-off events. [2025-04-13 19:40:27,117 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-13 19:40:27,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 66 events. 25/66 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 133 event pairs, 2 based on Foata normal form. 12/77 useless extension candidates. Maximal degree in co-relation 148. Up to 29 conditions per place. [2025-04-13 19:40:27,118 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 17 selfloop transitions, 7 changer transitions 2/28 dead transitions. [2025-04-13 19:40:27,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 126 flow [2025-04-13 19:40:27,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 19:40:27,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-13 19:40:27,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2025-04-13 19:40:27,119 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.425 [2025-04-13 19:40:27,119 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 44 flow. Second operand 5 states and 51 transitions. [2025-04-13 19:40:27,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 126 flow [2025-04-13 19:40:27,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-13 19:40:27,120 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 56 flow [2025-04-13 19:40:27,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=56, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2025-04-13 19:40:27,120 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2025-04-13 19:40:27,120 INFO L485 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 56 flow [2025-04-13 19:40:27,121 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-04-13 19:40:27,121 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:40:27,121 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:40:27,121 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 19:40:27,121 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:40:27,121 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:40:27,121 INFO L85 PathProgramCache]: Analyzing trace with hash -905909187, now seen corresponding path program 1 times [2025-04-13 19:40:27,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:40:27,122 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084215953] [2025-04-13 19:40:27,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:40:27,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:40:27,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 19:40:27,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 19:40:27,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:40:27,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 19:40:27,231 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-13 19:40:27,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 19:40:27,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 19:40:27,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:40:27,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 19:40:27,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-13 19:40:27,286 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-13 19:40:27,287 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-13 19:40:27,288 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-13 19:40:27,288 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-13 19:40:27,288 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-04-13 19:40:27,288 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 19:40:27,289 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-13 19:40:27,334 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:40:27,334 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:40:27,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:40:27 BasicIcfg [2025-04-13 19:40:27,339 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:40:27,340 INFO L158 Benchmark]: Toolchain (without parser) took 3448.81ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 98.5MB in the beginning and 166.0MB in the end (delta: -67.5MB). Peak memory consumption was 124.5MB. Max. memory is 8.0GB. [2025-04-13 19:40:27,340 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:40:27,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.38ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 56.7MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2025-04-13 19:40:27,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.39ms. Allocated memory is still 142.6MB. Free memory was 56.7MB in the beginning and 53.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 19:40:27,341 INFO L158 Benchmark]: Boogie Preprocessor took 39.74ms. Allocated memory is still 142.6MB. Free memory was 53.4MB in the beginning and 49.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 19:40:27,341 INFO L158 Benchmark]: RCFGBuilder took 1232.03ms. Allocated memory is still 142.6MB. Free memory was 49.9MB in the beginning and 51.7MB in the end (delta: -1.8MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. [2025-04-13 19:40:27,341 INFO L158 Benchmark]: TraceAbstraction took 1610.66ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 51.7MB in the beginning and 166.0MB in the end (delta: -114.3MB). Peak memory consumption was 76.4MB. Max. memory is 8.0GB. [2025-04-13 19:40:27,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 520.38ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 56.7MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.39ms. Allocated memory is still 142.6MB. Free memory was 56.7MB in the beginning and 53.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.74ms. Allocated memory is still 142.6MB. Free memory was 53.4MB in the beginning and 49.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1232.03ms. Allocated memory is still 142.6MB. Free memory was 49.9MB in the beginning and 51.7MB in the end (delta: -1.8MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1610.66ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 51.7MB in the beginning and 166.0MB in the end (delta: -114.3MB). Peak memory consumption was 76.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\at(argc, Pre)=1200, \at(argv, Pre)={1180:1182}, argc=1200, g=0, mut={3:0}, t1=-1] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\at(argc, Pre)=1200, \at(argv, Pre)={1180:1182}, \at(ptr, Pre)={0:0}, argc=1200, g=0, mut={3:0}, t1=-1, t2=0] [L1356] 1 g = 1 VAL [\at(ptr, Pre)={0:0}, \at(ptr, Pre)={0:0}, g=1, mut={3:0}, ptr={0:0}] [L1366] 2 g = 0 VAL [\at(ptr, Pre)={0:0}, g=0, mut={3:0}, ptr={0:0}] [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\at(cond, Pre)=0, \at(ptr, Pre)={0:0}, cond=0, g=0, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 43 locations, 42 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: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, InterpolantAutomatonStates: 8, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-13 19:40:27,356 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...