/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 INSUFFICIENT_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/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:50:15,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:50:16,066 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 04:50:16,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:50:16,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:50:16,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:50:16,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:50:16,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:50:16,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:50:16,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:50:16,109 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:50:16,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:50:16,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:50:16,110 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:50:16,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:50:16,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:50:16,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:50:16,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:50:16,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:50:16,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:50:16,112 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:50:16,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:50:16,112 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:50:16,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:50:16,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:50:16,113 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:50:16,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:50:16,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:50:16,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:50:16,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:50:16,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:50:16,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:50:16,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:50:16,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:50:16,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:50:16,116 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:50:16,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:50:16,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:50:16,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:50:16,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:50:16,418 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:50:16,420 INFO L431 ainManager$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 [2023-08-27 04:50:17,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:50:17,815 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:50:17,815 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-27 04:50:17,838 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8e3873a5/66f44460f2a04ce69ea5916ce0c10fd2/FLAG17e634d30 [2023-08-27 04:50:17,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8e3873a5/66f44460f2a04ce69ea5916ce0c10fd2 [2023-08-27 04:50:17,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:50:17,854 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:50:17,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:50:17,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:50:17,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:50:17,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:50:17" (1/1) ... [2023-08-27 04:50:17,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b743465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:17, skipping insertion in model container [2023-08-27 04:50:17,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:50:17" (1/1) ... [2023-08-27 04:50:17,910 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:50:18,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:50:18,210 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:50:18,248 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:50:18,250 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-27 04:50:18,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:50:18,310 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:50:18,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18 WrapperNode [2023-08-27 04:50:18,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:50:18,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:50:18,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:50:18,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:50:18,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,373 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-27 04:50:18,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:50:18,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:50:18,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:50:18,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:50:18,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,409 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:50:18,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:50:18,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:50:18,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:50:18,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (1/1) ... [2023-08-27 04:50:18,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:50:18,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:50:18,443 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 04:50:18,468 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 04:50:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:50:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:50:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:50:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:50:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:50:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:50:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:50:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:50:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:50:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:50:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:50:18,486 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 04:50:18,613 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:50:18,614 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:50:18,796 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:50:18,803 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:50:18,803 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:50:18,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:50:18 BoogieIcfgContainer [2023-08-27 04:50:18,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:50:18,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:50:18,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:50:18,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:50:18,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:50:17" (1/3) ... [2023-08-27 04:50:18,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a03487c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:50:18, skipping insertion in model container [2023-08-27 04:50:18,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:18" (2/3) ... [2023-08-27 04:50:18,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a03487c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:50:18, skipping insertion in model container [2023-08-27 04:50:18,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:50:18" (3/3) ... [2023-08-27 04:50:18,815 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-08-27 04:50:18,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:50:18,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 04:50:18,832 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:50:18,907 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 04:50:18,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 04:50:18,993 INFO L124 PetriNetUnfolderBase]: 3/62 cut-off events. [2023-08-27 04:50:18,994 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:50:19,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 3/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-08-27 04:50:19,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 04:50:19,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:19,010 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:50:19,018 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:19,021 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:19,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:19,049 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2023-08-27 04:50:19,050 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:50:19,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-27 04:50:19,051 INFO L119 LiptonReduction]: Number of co-enabled transitions 216 [2023-08-27 04:50:20,875 INFO L134 LiptonReduction]: Checked pairs total: 210 [2023-08-27 04:50:20,875 INFO L136 LiptonReduction]: Total number of compositions: 44 [2023-08-27 04:50:20,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:50:20,894 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;@6ff49e58, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:50:20,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 04:50:20,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:50:20,898 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 04:50:20,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:50:20,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:50:20,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 04:50:20,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-27 04:50:20,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:50:20,905 INFO L85 PathProgramCache]: Analyzing trace with hash 237951, now seen corresponding path program 1 times [2023-08-27 04:50:20,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:50:20,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100481658] [2023-08-27 04:50:20,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:50:20,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:50:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:50:21,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 04:50:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:50:21,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 04:50:21,104 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 04:50:21,105 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 04:50:21,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-27 04:50:21,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-27 04:50:21,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:50:21,108 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 04:50:21,116 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:50:21,116 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:50:21,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:50:21 BasicIcfg [2023-08-27 04:50:21,133 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:50:21,135 INFO L158 Benchmark]: Toolchain (without parser) took 3280.82ms. Allocated memory was 364.9MB in the beginning and 469.8MB in the end (delta: 104.9MB). Free memory was 340.4MB in the beginning and 383.9MB in the end (delta: -43.5MB). Peak memory consumption was 63.4MB. Max. memory is 16.0GB. [2023-08-27 04:50:21,135 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 364.9MB. Free memory is still 341.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:50:21,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.68ms. Allocated memory is still 364.9MB. Free memory was 339.9MB in the beginning and 320.1MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 04:50:21,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.49ms. Allocated memory is still 364.9MB. Free memory was 320.1MB in the beginning and 318.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:50:21,137 INFO L158 Benchmark]: Boogie Preprocessor took 33.76ms. Allocated memory is still 364.9MB. Free memory was 318.0MB in the beginning and 316.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:50:21,137 INFO L158 Benchmark]: RCFGBuilder took 397.50ms. Allocated memory is still 364.9MB. Free memory was 316.8MB in the beginning and 304.7MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 04:50:21,138 INFO L158 Benchmark]: TraceAbstraction took 2324.51ms. Allocated memory was 364.9MB in the beginning and 469.8MB in the end (delta: 104.9MB). Free memory was 303.8MB in the beginning and 383.9MB in the end (delta: -80.1MB). Peak memory consumption was 25.6MB. Max. memory is 16.0GB. [2023-08-27 04:50:21,140 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 364.9MB. Free memory is still 341.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 456.68ms. Allocated memory is still 364.9MB. Free memory was 339.9MB in the beginning and 320.1MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.49ms. Allocated memory is still 364.9MB. Free memory was 320.1MB in the beginning and 318.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.76ms. Allocated memory is still 364.9MB. Free memory was 318.0MB in the beginning and 316.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 397.50ms. Allocated memory is still 364.9MB. Free memory was 316.8MB in the beginning and 304.7MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 2324.51ms. Allocated memory was 364.9MB in the beginning and 469.8MB in the end (delta: 104.9MB). Free memory was 303.8MB in the beginning and 383.9MB in the end (delta: -80.1MB). Peak memory consumption was 25.6MB. 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, 49 PlacesBefore, 9 PlacesAfterwards, 46 TransitionsBefore, 5 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 210 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 122, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 122, unknown conditional: 0, unknown unconditional: 122] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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 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}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [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] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_2_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 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: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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! [2023-08-27 04:50:21,158 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...