/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:25:25,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:25:26,009 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 22:25:26,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:25:26,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:25:26,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:25:26,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:25:26,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:25:26,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:25:26,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:25:26,055 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:25:26,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:25:26,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:25:26,056 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:25:26,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:25:26,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:25:26,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:25:26,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:25:26,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:25:26,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:25:26,058 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:25:26,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:25:26,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:25:26,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:25:26,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:25:26,059 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:25:26,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:25:26,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:25:26,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:25:26,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:25:26,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:25:26,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:25:26,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:25:26,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:25:26,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:25:26,062 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:25:26,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:25:26,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:25:26,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:25:26,381 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:25:26,381 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:25:26,382 INFO L431 ainManager$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 [2023-08-26 22:25:27,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:25:27,853 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:25:27,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-08-26 22:25:27,878 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02806fd34/bab232f4b22f42648096d7fbf0b8c8d0/FLAG67e318e11 [2023-08-26 22:25:27,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02806fd34/bab232f4b22f42648096d7fbf0b8c8d0 [2023-08-26 22:25:27,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:25:27,899 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:25:27,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:25:27,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:25:27,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:25:27,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:25:27" (1/1) ... [2023-08-26 22:25:27,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fe42a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:27, skipping insertion in model container [2023-08-26 22:25:27,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:25:27" (1/1) ... [2023-08-26 22:25:27,968 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:25:28,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:25:28,504 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:25:28,531 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-26 22:25:28,532 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 22:25:28,537 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [730] [2023-08-26 22:25:28,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:25:28,639 WARN L669 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 22:25:28,645 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:25:28,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28 WrapperNode [2023-08-26 22:25:28,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:25:28,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:25:28,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:25:28,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:25:28,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,720 INFO L138 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2023-08-26 22:25:28,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:25:28,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:25:28,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:25:28,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:25:28,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:25:28,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:25:28,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:25:28,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:25:28,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (1/1) ... [2023-08-26 22:25:28,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:25:28,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:25:28,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 22:25:28,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 22:25:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-26 22:25:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-08-26 22:25:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-08-26 22:25:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-08-26 22:25:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-08-26 22:25:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:25:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:25:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 22:25:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:25:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:25:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:25:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:25:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:25:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:25:28,880 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 22:25:29,093 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:25:29,094 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:25:29,278 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:25:29,283 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:25:29,284 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 22:25:29,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:25:29 BoogieIcfgContainer [2023-08-26 22:25:29,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:25:29,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:25:29,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:25:29,289 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:25:29,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:25:27" (1/3) ... [2023-08-26 22:25:29,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414d6d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:25:29, skipping insertion in model container [2023-08-26 22:25:29,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:25:28" (2/3) ... [2023-08-26 22:25:29,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414d6d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:25:29, skipping insertion in model container [2023-08-26 22:25:29,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:25:29" (3/3) ... [2023-08-26 22:25:29,291 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-08-26 22:25:29,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:25:29,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-26 22:25:29,305 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:25:29,359 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 22:25:29,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 200 flow [2023-08-26 22:25:29,435 INFO L124 PetriNetUnfolderBase]: 2/90 cut-off events. [2023-08-26 22:25:29,435 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 22:25:29,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 90 events. 2/90 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-08-26 22:25:29,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 200 flow [2023-08-26 22:25:29,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 72 transitions, 153 flow [2023-08-26 22:25:29,444 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:25:29,452 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 72 transitions, 153 flow [2023-08-26 22:25:29,454 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 72 transitions, 153 flow [2023-08-26 22:25:29,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 72 transitions, 153 flow [2023-08-26 22:25:29,470 INFO L124 PetriNetUnfolderBase]: 0/72 cut-off events. [2023-08-26 22:25:29,470 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:25:29,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 72 events. 0/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-26 22:25:29,471 INFO L119 LiptonReduction]: Number of co-enabled transitions 624 [2023-08-26 22:25:32,481 INFO L134 LiptonReduction]: Checked pairs total: 1057 [2023-08-26 22:25:32,481 INFO L136 LiptonReduction]: Total number of compositions: 57 [2023-08-26 22:25:32,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:25:32,498 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@48b6a3ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:25:32,498 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-26 22:25:32,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:25:32,502 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-26 22:25:32,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:25:32,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:25:32,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 22:25:32,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-26 22:25:32,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:25:32,508 INFO L85 PathProgramCache]: Analyzing trace with hash 642610242, now seen corresponding path program 1 times [2023-08-26 22:25:32,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:25:32,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889809217] [2023-08-26 22:25:32,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:25:32,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:25:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:25:32,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 22:25:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:25:32,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 22:25:32,754 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 22:25:32,755 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2023-08-26 22:25:32,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-26 22:25:32,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-26 22:25:32,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONASSERT (0 of 4 remaining) [2023-08-26 22:25:32,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 22:25:32,758 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 22:25:32,765 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 22:25:32,765 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 22:25:32,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 10:25:32 BasicIcfg [2023-08-26 22:25:32,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 22:25:32,790 INFO L158 Benchmark]: Toolchain (without parser) took 4890.54ms. Allocated memory was 396.4MB in the beginning and 534.8MB in the end (delta: 138.4MB). Free memory was 370.1MB in the beginning and 376.7MB in the end (delta: -6.6MB). Peak memory consumption was 134.5MB. Max. memory is 16.0GB. [2023-08-26 22:25:32,790 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 396.4MB. Free memory is still 372.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:25:32,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 745.89ms. Allocated memory is still 396.4MB. Free memory was 370.1MB in the beginning and 332.1MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-26 22:25:32,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.42ms. Allocated memory is still 396.4MB. Free memory was 332.1MB in the beginning and 329.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 22:25:32,792 INFO L158 Benchmark]: Boogie Preprocessor took 60.38ms. Allocated memory is still 396.4MB. Free memory was 329.3MB in the beginning and 326.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:25:32,792 INFO L158 Benchmark]: RCFGBuilder took 503.39ms. Allocated memory is still 396.4MB. Free memory was 326.6MB in the beginning and 356.2MB in the end (delta: -29.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-26 22:25:32,793 INFO L158 Benchmark]: TraceAbstraction took 3502.29ms. Allocated memory was 396.4MB in the beginning and 534.8MB in the end (delta: 138.4MB). Free memory was 356.2MB in the beginning and 376.7MB in the end (delta: -20.6MB). Peak memory consumption was 117.7MB. Max. memory is 16.0GB. [2023-08-26 22:25:32,795 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 396.4MB. Free memory is still 372.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 745.89ms. Allocated memory is still 396.4MB. Free memory was 370.1MB in the beginning and 332.1MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 73.42ms. Allocated memory is still 396.4MB. Free memory was 332.1MB in the beginning and 329.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 60.38ms. Allocated memory is still 396.4MB. Free memory was 329.3MB in the beginning and 326.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 503.39ms. Allocated memory is still 396.4MB. Free memory was 326.6MB in the beginning and 356.2MB in the end (delta: -29.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 3502.29ms. Allocated memory was 396.4MB in the beginning and 534.8MB in the end (delta: 138.4MB). Free memory was 356.2MB in the beginning and 376.7MB in the end (delta: -20.6MB). Peak memory consumption was 117.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 730]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [730] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 79 PlacesBefore, 22 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 624 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 1057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 697, independent: 617, independent conditional: 0, independent unconditional: 617, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 343, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 697, independent: 293, independent conditional: 0, independent unconditional: 293, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 343, unknown conditional: 0, unknown unconditional: 343] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L1351] 0 int g; [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 [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-2, ptr={0:0}, t1={6:0}, t2={5:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) [L18] 2 __assert_fail ("0", "13-privatized_67-pthread_cond_wait_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [cond={4:0}, g=0, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 124 locations, 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: 3.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 6 NumberOfCodeBlocks, 6 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-26 22:25:32,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...