/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:34:21,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:34:21,461 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-SemanticLbe.epf [2023-11-17 11:34:21,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:34:21,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:34:21,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:34:21,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:34:21,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:34:21,491 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:34:21,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:34:21,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:34:21,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:34:21,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:34:21,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:34:21,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:34:21,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:34:21,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:34:21,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:34:21,495 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:34:21,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:34:21,495 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:34:21,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:34:21,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:34:21,500 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:34:21,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:34:21,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:21,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:34:21,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:34:21,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:34:21,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:34:21,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:34:21,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:34:21,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:34:21,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:34:21,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:34:21,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:34:21,767 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:34:21,768 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:34:21,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-11-17 11:34:22,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:34:23,159 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:34:23,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-11-17 11:34:23,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96f8e5c2/e902872d2bd049dda2d5f0685fbccdf1/FLAG547939d80 [2023-11-17 11:34:23,193 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96f8e5c2/e902872d2bd049dda2d5f0685fbccdf1 [2023-11-17 11:34:23,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:34:23,197 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:34:23,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:23,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:34:23,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:34:23,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553fe947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23, skipping insertion in model container [2023-11-17 11:34:23,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,257 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:34:23,419 WARN L240 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_18-first-reads_unknown_2_pos.i[1097,1110] [2023-11-17 11:34:23,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:23,565 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:34:23,577 WARN L240 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_18-first-reads_unknown_2_pos.i[1097,1110] [2023-11-17 11:34:23,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:23,648 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:34:23,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23 WrapperNode [2023-11-17 11:34:23,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:23,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:23,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:34:23,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:34:23,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,693 INFO L138 Inliner]: procedures = 164, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-11-17 11:34:23,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:23,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:34:23,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:34:23,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:34:23,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:34:23,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:34:23,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:34:23,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:34:23,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (1/1) ... [2023-11-17 11:34:23,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:23,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:23,769 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) [2023-11-17 11:34:23,793 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 [2023-11-17 11:34:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:34:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:34:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:34:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:34:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:34:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 11:34:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 11:34:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:34:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:34:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:34:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:34:23,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:34:23,804 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 11:34:23,923 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:34:23,925 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:34:24,067 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:34:24,199 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:34:24,199 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:34:24,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:24 BoogieIcfgContainer [2023-11-17 11:34:24,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:34:24,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:34:24,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:34:24,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:34:24,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:34:23" (1/3) ... [2023-11-17 11:34:24,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442a2568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:24, skipping insertion in model container [2023-11-17 11:34:24,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:23" (2/3) ... [2023-11-17 11:34:24,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442a2568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:24, skipping insertion in model container [2023-11-17 11:34:24,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:24" (3/3) ... [2023-11-17 11:34:24,209 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-11-17 11:34:24,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:34:24,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 11:34:24,226 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:34:24,275 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 11:34:24,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 20 transitions, 47 flow [2023-11-17 11:34:24,339 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2023-11-17 11:34:24,340 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:34:24,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 19 events. 1/19 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2023-11-17 11:34:24,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 20 transitions, 47 flow [2023-11-17 11:34:24,349 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 12 transitions, 27 flow [2023-11-17 11:34:24,352 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:34:24,370 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 12 transitions, 27 flow [2023-11-17 11:34:24,376 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 12 transitions, 27 flow [2023-11-17 11:34:24,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 16 places, 12 transitions, 27 flow [2023-11-17 11:34:24,383 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-17 11:34:24,383 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:24,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-17 11:34:24,384 INFO L119 LiptonReduction]: Number of co-enabled transitions 50 [2023-11-17 11:34:24,838 INFO L134 LiptonReduction]: Checked pairs total: 35 [2023-11-17 11:34:24,838 INFO L136 LiptonReduction]: Total number of compositions: 8 [2023-11-17 11:34:24,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:34:24,863 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=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;@590dd28d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:34:24,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-17 11:34:24,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:34:24,866 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-17 11:34:24,866 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:24,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:24,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-17 11:34:24,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 11:34:24,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:24,871 INFO L85 PathProgramCache]: Analyzing trace with hash 173367, now seen corresponding path program 1 times [2023-11-17 11:34:24,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:24,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831544801] [2023-11-17 11:34:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:24,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:34:25,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 11:34:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:34:25,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 11:34:25,063 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 11:34:25,064 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-17 11:34:25,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-17 11:34:25,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-11-17 11:34:25,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:34:25,067 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-17 11:34:25,074 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:34:25,075 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:34:25,087 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-17 11:34:25,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:34:25 BasicIcfg [2023-11-17 11:34:25,094 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:34:25,095 INFO L158 Benchmark]: Toolchain (without parser) took 1897.82ms. Allocated memory is still 282.1MB. Free memory was 234.9MB in the beginning and 207.5MB in the end (delta: 27.5MB). Peak memory consumption was 28.0MB. Max. memory is 8.0GB. [2023-11-17 11:34:25,097 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory was 133.1MB in the beginning and 132.9MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:34:25,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.47ms. Allocated memory is still 282.1MB. Free memory was 234.9MB in the beginning and 215.7MB in the end (delta: 19.2MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-17 11:34:25,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.05ms. Allocated memory is still 282.1MB. Free memory was 215.7MB in the beginning and 213.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 11:34:25,103 INFO L158 Benchmark]: Boogie Preprocessor took 39.67ms. Allocated memory is still 282.1MB. Free memory was 213.9MB in the beginning and 212.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:34:25,104 INFO L158 Benchmark]: RCFGBuilder took 467.90ms. Allocated memory is still 282.1MB. Free memory was 212.5MB in the beginning and 192.3MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-17 11:34:25,104 INFO L158 Benchmark]: TraceAbstraction took 889.49ms. Allocated memory is still 282.1MB. Free memory was 191.6MB in the beginning and 207.5MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:34:25,111 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 178.3MB. Free memory was 133.1MB in the beginning and 132.9MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 448.47ms. Allocated memory is still 282.1MB. Free memory was 234.9MB in the beginning and 215.7MB in the end (delta: 19.2MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.05ms. Allocated memory is still 282.1MB. Free memory was 215.7MB in the beginning and 213.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.67ms. Allocated memory is still 282.1MB. Free memory was 213.9MB in the beginning and 212.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 467.90ms. Allocated memory is still 282.1MB. Free memory was 212.5MB in the beginning and 192.3MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 889.49ms. Allocated memory is still 282.1MB. Free memory was 191.6MB in the beginning and 207.5MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5s, 16 PlacesBefore, 8 PlacesAfterwards, 12 TransitionsBefore, 4 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 35 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: 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 3 procedures, 31 locations, 3 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: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 3 NumberOfCodeBlocks, 3 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! [2023-11-17 11:34:25,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...