/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 --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:07:52,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:07:52,536 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 [2023-08-27 12:07:52,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:07:52,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:07:52,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:07:52,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:07:52,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:07:52,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:07:52,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:07:52,578 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:07:52,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:07:52,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:07:52,579 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:07:52,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:07:52,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:07:52,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:07:52,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:07:52,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:07:52,580 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:07:52,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:07:52,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:07:52,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:07:52,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:07:52,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:07:52,582 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:07:52,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:07:52,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:07:52,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:07:52,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:07:52,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:07:52,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:07:52,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:07:52,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:07:52,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:07:52,584 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:07:52,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:07:52,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:07:52,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:07:52,872 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:07:52,873 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:07:52,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-27 12:07:53,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:07:54,086 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:07:54,086 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-27 12:07:54,096 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2415c225/0a67bc6657684d87ad14bdc2c5735f4a/FLAG66894650c [2023-08-27 12:07:54,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2415c225/0a67bc6657684d87ad14bdc2c5735f4a [2023-08-27 12:07:54,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:07:54,113 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:07:54,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:07:54,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:07:54,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:07:54,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b00563e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54, skipping insertion in model container [2023-08-27 12:07:54,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,157 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:07:54,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:07:54,419 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:07:54,443 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 12:07:54,444 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-27 12:07:54,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:07:54,485 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:07:54,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54 WrapperNode [2023-08-27 12:07:54,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:07:54,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:07:54,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:07:54,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:07:54,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,535 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-08-27 12:07:54,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:07:54,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:07:54,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:07:54,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:07:54,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:07:54,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:07:54,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:07:54,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:07:54,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (1/1) ... [2023-08-27 12:07:54,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:07:54,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:07:54,622 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) [2023-08-27 12:07:54,687 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 [2023-08-27 12:07:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:07:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 12:07:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:07:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:07:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 12:07:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 12:07:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:07:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:07:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:07:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:07:54,705 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 12:07:54,807 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:07:54,808 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:07:54,988 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:07:54,993 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:07:54,993 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 12:07:54,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:07:54 BoogieIcfgContainer [2023-08-27 12:07:54,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:07:54,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:07:54,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:07:54,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:07:54,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:07:54" (1/3) ... [2023-08-27 12:07:54,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5a57b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:07:54, skipping insertion in model container [2023-08-27 12:07:54,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:54" (2/3) ... [2023-08-27 12:07:54,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5a57b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:07:54, skipping insertion in model container [2023-08-27 12:07:54,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:07:54" (3/3) ... [2023-08-27 12:07:55,000 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-27 12:07:55,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:07:55,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 12:07:55,013 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:07:55,064 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 12:07:55,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 159 flow [2023-08-27 12:07:55,141 INFO L124 PetriNetUnfolderBase]: 3/76 cut-off events. [2023-08-27 12:07:55,142 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:07:55,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-27 12:07:55,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 159 flow [2023-08-27 12:07:55,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 64 transitions, 131 flow [2023-08-27 12:07:55,154 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:07:55,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 64 transitions, 131 flow [2023-08-27 12:07:55,169 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 64 transitions, 131 flow [2023-08-27 12:07:55,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 64 transitions, 131 flow [2023-08-27 12:07:55,188 INFO L124 PetriNetUnfolderBase]: 1/64 cut-off events. [2023-08-27 12:07:55,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:07:55,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 1/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-27 12:07:55,189 INFO L119 LiptonReduction]: Number of co-enabled transitions 400 [2023-08-27 12:07:57,097 INFO L134 LiptonReduction]: Checked pairs total: 1159 [2023-08-27 12:07:57,097 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-27 12:07:57,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:07:57,110 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;@70618201, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:07:57,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-27 12:07:57,113 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:07:57,113 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-27 12:07:57,113 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:07:57,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:07:57,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:07:57,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 12:07:57,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:07:57,117 INFO L85 PathProgramCache]: Analyzing trace with hash 248403630, now seen corresponding path program 1 times [2023-08-27 12:07:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:07:57,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550813279] [2023-08-27 12:07:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:07:57,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:07:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 12:07:57,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 12:07:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 12:07:57,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 12:07:57,230 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 12:07:57,231 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2023-08-27 12:07:57,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-27 12:07:57,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:07:57,232 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 12:07:57,237 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:07:57,237 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:07:57,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:07:57 BasicIcfg [2023-08-27 12:07:57,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:07:57,252 INFO L158 Benchmark]: Toolchain (without parser) took 3138.36ms. Allocated memory was 400.6MB in the beginning and 482.3MB in the end (delta: 81.8MB). Free memory was 374.7MB in the beginning and 307.3MB in the end (delta: 67.3MB). Peak memory consumption was 150.8MB. Max. memory is 16.0GB. [2023-08-27 12:07:57,252 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 400.6MB. Free memory is still 378.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:07:57,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.96ms. Allocated memory is still 400.6MB. Free memory was 374.2MB in the beginning and 355.5MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 12:07:57,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.03ms. Allocated memory is still 400.6MB. Free memory was 355.5MB in the beginning and 353.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:07:57,256 INFO L158 Benchmark]: Boogie Preprocessor took 30.44ms. Allocated memory is still 400.6MB. Free memory was 353.4MB in the beginning and 352.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:07:57,257 INFO L158 Benchmark]: RCFGBuilder took 427.54ms. Allocated memory is still 400.6MB. Free memory was 351.3MB in the beginning and 337.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 12:07:57,257 INFO L158 Benchmark]: TraceAbstraction took 2255.05ms. Allocated memory was 400.6MB in the beginning and 482.3MB in the end (delta: 81.8MB). Free memory was 337.6MB in the beginning and 307.3MB in the end (delta: 30.2MB). Peak memory consumption was 113.0MB. Max. memory is 16.0GB. [2023-08-27 12:07:57,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 400.6MB. Free memory is still 378.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 371.96ms. Allocated memory is still 400.6MB. Free memory was 374.2MB in the beginning and 355.5MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.03ms. Allocated memory is still 400.6MB. Free memory was 355.5MB in the beginning and 353.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.44ms. Allocated memory is still 400.6MB. Free memory was 353.4MB in the beginning and 352.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 427.54ms. Allocated memory is still 400.6MB. Free memory was 351.3MB in the beginning and 337.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2255.05ms. Allocated memory was 400.6MB in the beginning and 482.3MB in the end (delta: 81.8MB). Free memory was 337.6MB in the beginning and 307.3MB in the end (delta: 30.2MB). Peak memory consumption was 113.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 67 PlacesBefore, 18 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 1159 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 492, independent: 357, independent conditional: 0, independent unconditional: 357, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 206, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 492, independent: 173, independent conditional: 0, independent unconditional: 173, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 206, unknown conditional: 0, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "36-apron_17-traces-rpb-litmus_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42] - UnprovableResult [Line: 697]: 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 3 procedures, 87 locations, 2 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: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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! [2023-08-27 12:07:57,276 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...