/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_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:34:17,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:34:17,974 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 11:34:17,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:34:17,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:34:17,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:34:18,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:34:18,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:34:18,000 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:34:18,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:34:18,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:34:18,004 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:34:18,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:34:18,005 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:34:18,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:34:18,006 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:34:18,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:34:18,006 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:34:18,006 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:34:18,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:34:18,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:34:18,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:34:18,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:34:18,007 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:34:18,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:34:18,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:18,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:34:18,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:34:18,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:34:18,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:34:18,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:34:18,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:34:18,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:34:18,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:34:18,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:34:18,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:34:18,206 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:34:18,207 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:34:18,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-11-17 11:34:19,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:34:19,545 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:34:19,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-11-17 11:34:19,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59aacd7bf/aae2b5c9aa8048188e846717d5384b6f/FLAG2442769d8 [2023-11-17 11:34:19,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59aacd7bf/aae2b5c9aa8048188e846717d5384b6f [2023-11-17 11:34:19,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:34:19,577 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:34:19,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:19,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:34:19,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:34:19,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6208a41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19, skipping insertion in model container [2023-11-17 11:34:19,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,614 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:34:19,717 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_1_pos.i[1097,1110] [2023-11-17 11:34:19,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:19,835 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:34:19,846 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_1_pos.i[1097,1110] [2023-11-17 11:34:19,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:19,899 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:34:19,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19 WrapperNode [2023-11-17 11:34:19,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:19,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:19,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:34:19,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:34:19,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,946 INFO L138 Inliner]: procedures = 164, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-11-17 11:34:19,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:19,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:34:19,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:34:19,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:34:19,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:34:19,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:34:19,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:34:19,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:34:19,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (1/1) ... [2023-11-17 11:34:19,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:19,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:20,005 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 11:34:20,023 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 11:34:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:34:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:34:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:34:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:34:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:34:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 11:34:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 11:34:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:34:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:34:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:34:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:34:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:34:20,032 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 11:34:20,140 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:34:20,142 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:34:20,244 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:34:20,322 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:34:20,322 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:34:20,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:20 BoogieIcfgContainer [2023-11-17 11:34:20,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:34:20,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:34:20,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:34:20,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:34:20,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:34:19" (1/3) ... [2023-11-17 11:34:20,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15901274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:20, skipping insertion in model container [2023-11-17 11:34:20,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:19" (2/3) ... [2023-11-17 11:34:20,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15901274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:20, skipping insertion in model container [2023-11-17 11:34:20,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:20" (3/3) ... [2023-11-17 11:34:20,329 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-11-17 11:34:20,342 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:34:20,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 11:34:20,343 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:34:20,392 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 11:34:20,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 20 transitions, 47 flow [2023-11-17 11:34:20,456 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2023-11-17 11:34:20,456 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:34:20,459 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 11:34:20,459 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 20 transitions, 47 flow [2023-11-17 11:34:20,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 12 transitions, 27 flow [2023-11-17 11:34:20,464 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:34:20,475 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 12 transitions, 27 flow [2023-11-17 11:34:20,477 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 12 transitions, 27 flow [2023-11-17 11:34:20,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 16 places, 12 transitions, 27 flow [2023-11-17 11:34:20,481 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-17 11:34:20,482 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:20,482 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 11:34:20,482 INFO L119 LiptonReduction]: Number of co-enabled transitions 50 [2023-11-17 11:34:20,966 INFO L134 LiptonReduction]: Checked pairs total: 35 [2023-11-17 11:34:20,967 INFO L136 LiptonReduction]: Total number of compositions: 8 [2023-11-17 11:34:20,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:34:20,989 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;@7db36d13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:34:20,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-17 11:34:20,991 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:34:20,991 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-17 11:34:20,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:20,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:20,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-17 11:34:20,992 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 11:34:20,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:20,996 INFO L85 PathProgramCache]: Analyzing trace with hash 173367, now seen corresponding path program 1 times [2023-11-17 11:34:21,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:21,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108673616] [2023-11-17 11:34:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:21,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:34:21,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 11:34:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:34:21,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 11:34:21,156 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 11:34:21,157 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-17 11:34:21,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-17 11:34:21,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-11-17 11:34:21,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:34:21,159 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-17 11:34:21,164 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:34:21,164 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:34:21,172 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-17 11:34:21,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:34:21 BasicIcfg [2023-11-17 11:34:21,176 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:34:21,177 INFO L158 Benchmark]: Toolchain (without parser) took 1600.11ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 139.8MB in the beginning and 147.1MB in the end (delta: -7.3MB). Peak memory consumption was 29.9MB. Max. memory is 8.0GB. [2023-11-17 11:34:21,177 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 131.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:34:21,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.44ms. Allocated memory is still 175.1MB. Free memory was 139.4MB in the beginning and 120.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-17 11:34:21,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.91ms. Allocated memory is still 175.1MB. Free memory was 120.4MB in the beginning and 118.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:34:21,178 INFO L158 Benchmark]: Boogie Preprocessor took 26.93ms. Allocated memory is still 175.1MB. Free memory was 118.4MB in the beginning and 117.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 11:34:21,179 INFO L158 Benchmark]: RCFGBuilder took 349.21ms. Allocated memory is still 175.1MB. Free memory was 117.0MB in the beginning and 96.8MB in the end (delta: 20.2MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-17 11:34:21,179 INFO L158 Benchmark]: TraceAbstraction took 851.31ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 96.0MB in the beginning and 147.1MB in the end (delta: -51.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:34:21,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 131.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 322.44ms. Allocated memory is still 175.1MB. Free memory was 139.4MB in the beginning and 120.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.91ms. Allocated memory is still 175.1MB. Free memory was 120.4MB in the beginning and 118.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.93ms. Allocated memory is still 175.1MB. Free memory was 118.4MB in the beginning and 117.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 349.21ms. Allocated memory is still 175.1MB. Free memory was 117.0MB in the beginning and 96.8MB in the end (delta: 20.2MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 851.31ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 96.0MB in the beginning and 147.1MB in the end (delta: -51.1MB). 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: 23, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 13, dependent conditional: 0, dependent unconditional: 13, 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 TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, 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 11:34:21,205 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...