/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_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:13:50,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:13:51,001 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 [2025-04-14 00:13:51,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:13:51,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:13:51,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:13:51,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:13:51,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:13:51,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:13:51,032 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:13:51,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:13:51,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:13:51,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:13:51,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:13:51,033 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:13:51,034 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:51,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:51,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:13:51,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:13:51,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:13:51,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:13:51,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:13:51,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:13:51,035 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 00:13:51,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:13:51,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:13:51,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:13:51,280 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:13:51,280 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:13:51,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2025-04-14 00:13:52,606 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed034630/d3fa9b6ed15e4c3b92261d9fd2acc7fe/FLAG23f5d805c [2025-04-14 00:13:53,006 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:13:53,006 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2025-04-14 00:13:53,028 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed034630/d3fa9b6ed15e4c3b92261d9fd2acc7fe/FLAG23f5d805c [2025-04-14 00:13:53,688 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed034630/d3fa9b6ed15e4c3b92261d9fd2acc7fe [2025-04-14 00:13:53,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:13:53,692 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:13:53,693 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:13:53,693 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:13:53,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:13:53,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:13:53" (1/1) ... [2025-04-14 00:13:53,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428d5b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:53, skipping insertion in model container [2025-04-14 00:13:53,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:13:53" (1/1) ... [2025-04-14 00:13:53,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:13:53,904 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_unknown_1_neg.i[1103,1116] [2025-04-14 00:13:54,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:13:54,238 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:13:54,260 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_unknown_1_neg.i[1103,1116] [2025-04-14 00:13:54,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:13:54,368 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:13:54,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54 WrapperNode [2025-04-14 00:13:54,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:13:54,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:13:54,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:13:54,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:13:54,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,422 INFO L138 Inliner]: procedures = 354, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 158 [2025-04-14 00:13:54,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:13:54,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:13:54,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:13:54,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:13:54,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,435 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,448 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]. [2025-04-14 00:13:54,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,457 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:13:54,476 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:13:54,476 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:13:54,476 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:13:54,477 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (1/1) ... [2025-04-14 00:13:54,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:54,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:13:54,501 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) [2025-04-14 00:13:54,503 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 [2025-04-14 00:13:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2025-04-14 00:13:54,525 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2025-04-14 00:13:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2025-04-14 00:13:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2025-04-14 00:13:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-14 00:13:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-14 00:13:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:13:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:13:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-14 00:13:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:13:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:13:54,527 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 00:13:54,747 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:13:54,748 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:13:54,927 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:13:54,928 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:13:54,928 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:13:55,665 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:13:55,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:13:55 BoogieIcfgContainer [2025-04-14 00:13:55,665 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:13:55,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:13:55,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:13:55,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:13:55,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:13:53" (1/3) ... [2025-04-14 00:13:55,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fa6659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:13:55, skipping insertion in model container [2025-04-14 00:13:55,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:54" (2/3) ... [2025-04-14 00:13:55,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fa6659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:13:55, skipping insertion in model container [2025-04-14 00:13:55,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:13:55" (3/3) ... [2025-04-14 00:13:55,672 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2025-04-14 00:13:55,684 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:13:55,685 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i that has 3 procedures, 25 locations, 22 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-14 00:13:55,686 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:13:55,727 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-14 00:13:55,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 24 transitions, 62 flow [2025-04-14 00:13:55,767 INFO L116 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-04-14 00:13:55,768 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-14 00:13:55,769 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 22 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. [2025-04-14 00:13:55,769 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 24 transitions, 62 flow [2025-04-14 00:13:55,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 17 transitions, 43 flow [2025-04-14 00:13:55,778 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:13:55,788 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;@495f7a19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:13:55,788 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-14 00:13:55,815 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:13:55,815 INFO L116 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-04-14 00:13:55,815 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:55,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:13:55,816 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:13:55,817 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 00:13:55,821 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:13:55,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1274835215, now seen corresponding path program 1 times [2025-04-14 00:13:55,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:13:55,828 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232489457] [2025-04-14 00:13:55,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:13:55,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:13:56,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-14 00:13:56,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-14 00:13:56,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:56,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-14 00:13:56,182 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-14 00:13:56,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-14 00:13:56,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-14 00:13:56,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:56,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-14 00:13:56,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-14 00:13:56,264 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-14 00:13:56,265 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-14 00:13:56,266 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-14 00:13:56,266 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-14 00:13:56,266 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-04-14 00:13:56,267 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:13:56,267 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-14 00:13:56,311 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:13:56,311 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:13:56,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:13:56 BasicIcfg [2025-04-14 00:13:56,315 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:13:56,316 INFO L158 Benchmark]: Toolchain (without parser) took 2624.59ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 98.2MB in the beginning and 195.1MB in the end (delta: -96.9MB). Peak memory consumption was 50.5MB. Max. memory is 8.0GB. [2025-04-14 00:13:56,316 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:56,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.19ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 57.0MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2025-04-14 00:13:56,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.77ms. Allocated memory is still 142.6MB. Free memory was 57.0MB in the beginning and 53.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 00:13:56,317 INFO L158 Benchmark]: Boogie Preprocessor took 52.50ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 50.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 00:13:56,318 INFO L158 Benchmark]: IcfgBuilder took 1189.39ms. Allocated memory is still 142.6MB. Free memory was 50.7MB in the beginning and 47.5MB in the end (delta: 3.2MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2025-04-14 00:13:56,318 INFO L158 Benchmark]: TraceAbstraction took 648.58ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 46.8MB in the beginning and 195.1MB in the end (delta: -148.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:56,319 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 676.19ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 57.0MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.77ms. Allocated memory is still 142.6MB. Free memory was 57.0MB in the beginning and 53.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.50ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 50.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * IcfgBuilder took 1189.39ms. Allocated memory is still 142.6MB. Free memory was 50.7MB in the beginning and 47.5MB in the end (delta: 3.2MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * TraceAbstraction took 648.58ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 46.8MB in the beginning and 195.1MB in the end (delta: -148.3MB). There was no memory consumed. 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}, \at(ptr, Pre)={0:0}, 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] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\at(cond, Pre)=0, \at(ptr, Pre)={0:0}, cond=0, g=0, mut={3:0}] - 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2025-04-14 00:13:56,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...