/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-23 23:50:31,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-23 23:50:32,009 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-23 23:50:32,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-23 23:50:32,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-23 23:50:32,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-23 23:50:32,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-23 23:50:32,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-23 23:50:32,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-23 23:50:32,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-23 23:50:32,055 INFO L153 SettingsManager]: * Use SBE=true [2023-08-23 23:50:32,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-23 23:50:32,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-23 23:50:32,056 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-23 23:50:32,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-23 23:50:32,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-23 23:50:32,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-23 23:50:32,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-23 23:50:32,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-23 23:50:32,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-23 23:50:32,058 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-23 23:50:32,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-23 23:50:32,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-23 23:50:32,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-23 23:50:32,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-23 23:50:32,059 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-23 23:50:32,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-23 23:50:32,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-23 23:50:32,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-23 23:50:32,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-23 23:50:32,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-23 23:50:32,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-23 23:50:32,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-23 23:50:32,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-23 23:50:32,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-23 23:50:32,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-08-23 23:50:32,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-23 23:50:32,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-23 23:50:32,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-23 23:50:32,340 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-23 23:50:32,340 INFO L274 PluginConnector]: CDTParser initialized [2023-08-23 23:50:32,341 INFO L431 ainManager$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 [2023-08-23 23:50:33,463 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-23 23:50:33,678 INFO L384 CDTParser]: Found 1 translation units. [2023-08-23 23:50:33,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-23 23:50:33,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5732380f/bba9cccb1a854b9c8b658aaea0df0d98/FLAG084b7e1ae [2023-08-23 23:50:33,709 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5732380f/bba9cccb1a854b9c8b658aaea0df0d98 [2023-08-23 23:50:33,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-23 23:50:33,712 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-23 23:50:33,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-23 23:50:33,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-23 23:50:33,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-23 23:50:33,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 11:50:33" (1/1) ... [2023-08-23 23:50:33,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8a93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:33, skipping insertion in model container [2023-08-23 23:50:33,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 11:50:33" (1/1) ... [2023-08-23 23:50:33,774 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-23 23:50:33,951 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] [2023-08-23 23:50:34,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-23 23:50:34,121 INFO L201 MainTranslator]: Completed pre-run [2023-08-23 23:50:34,134 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] [2023-08-23 23:50:34,152 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-23 23:50:34,154 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-23 23:50:34,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-23 23:50:34,215 INFO L206 MainTranslator]: Completed translation [2023-08-23 23:50:34,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34 WrapperNode [2023-08-23 23:50:34,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-23 23:50:34,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-23 23:50:34,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-23 23:50:34,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-23 23:50:34,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,274 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-23 23:50:34,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-23 23:50:34,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-23 23:50:34,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-23 23:50:34,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-23 23:50:34,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-23 23:50:34,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-23 23:50:34,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-23 23:50:34,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-23 23:50:34,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (1/1) ... [2023-08-23 23:50:34,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-23 23:50:34,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-23 23:50:34,342 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) [2023-08-23 23:50:34,374 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 [2023-08-23 23:50:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-23 23:50:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-23 23:50:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-23 23:50:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-23 23:50:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-23 23:50:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-23 23:50:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-23 23:50:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-23 23:50:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-23 23:50:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-23 23:50:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-23 23:50:34,398 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-23 23:50:34,509 INFO L236 CfgBuilder]: Building ICFG [2023-08-23 23:50:34,510 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-23 23:50:34,603 INFO L277 CfgBuilder]: Performing block encoding [2023-08-23 23:50:34,608 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-23 23:50:34,608 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-23 23:50:34,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 11:50:34 BoogieIcfgContainer [2023-08-23 23:50:34,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-23 23:50:34,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-23 23:50:34,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-23 23:50:34,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-23 23:50:34,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 11:50:33" (1/3) ... [2023-08-23 23:50:34,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5417c05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 11:50:34, skipping insertion in model container [2023-08-23 23:50:34,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:50:34" (2/3) ... [2023-08-23 23:50:34,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5417c05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 11:50:34, skipping insertion in model container [2023-08-23 23:50:34,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 11:50:34" (3/3) ... [2023-08-23 23:50:34,616 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-08-23 23:50:34,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-23 23:50:34,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-23 23:50:34,630 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-23 23:50:34,674 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-23 23:50:34,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-08-23 23:50:34,734 INFO L124 PetriNetUnfolderBase]: 2/58 cut-off events. [2023-08-23 23:50:34,735 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-23 23:50:34,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 2/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-08-23 23:50:34,738 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-08-23 23:50:34,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-08-23 23:50:34,743 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-23 23:50:34,750 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-23 23:50:34,752 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-23 23:50:34,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-08-23 23:50:34,764 INFO L124 PetriNetUnfolderBase]: 1/44 cut-off events. [2023-08-23 23:50:34,764 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-23 23:50:34,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 1/44 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. 0/43 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-23 23:50:34,765 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-08-23 23:50:36,559 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-08-23 23:50:36,559 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-23 23:50:36,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-23 23:50:36,576 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;@c1f9aca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-23 23:50:36,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-23 23:50:36,579 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-23 23:50:36,579 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-23 23:50:36,579 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-23 23:50:36,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-23 23:50:36,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-23 23:50:36,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-23 23:50:36,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-23 23:50:36,583 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-08-23 23:50:36,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-23 23:50:36,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276497361] [2023-08-23 23:50:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-23 23:50:36,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-23 23:50:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-23 23:50:36,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-23 23:50:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-23 23:50:36,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-23 23:50:36,759 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-23 23:50:36,760 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-23 23:50:36,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-23 23:50:36,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-23 23:50:36,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-23 23:50:36,764 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-23 23:50:36,772 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-23 23:50:36,772 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-23 23:50:36,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.08 11:50:36 BasicIcfg [2023-08-23 23:50:36,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-23 23:50:36,798 INFO L158 Benchmark]: Toolchain (without parser) took 3085.64ms. Allocated memory is still 362.8MB. Free memory was 319.4MB in the beginning and 240.7MB in the end (delta: 78.8MB). Peak memory consumption was 80.5MB. Max. memory is 16.0GB. [2023-08-23 23:50:36,799 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 362.8MB. Free memory was 340.1MB in the beginning and 340.1MB in the end (delta: 74.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-23 23:50:36,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.49ms. Allocated memory is still 362.8MB. Free memory was 319.4MB in the beginning and 300.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-23 23:50:36,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.17ms. Allocated memory is still 362.8MB. Free memory was 300.4MB in the beginning and 298.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-23 23:50:36,804 INFO L158 Benchmark]: Boogie Preprocessor took 25.85ms. Allocated memory is still 362.8MB. Free memory was 298.4MB in the beginning and 297.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-23 23:50:36,804 INFO L158 Benchmark]: RCFGBuilder took 308.33ms. Allocated memory is still 362.8MB. Free memory was 297.1MB in the beginning and 331.6MB in the end (delta: -34.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.0GB. [2023-08-23 23:50:36,805 INFO L158 Benchmark]: TraceAbstraction took 2185.35ms. Allocated memory is still 362.8MB. Free memory was 330.9MB in the beginning and 240.7MB in the end (delta: 90.3MB). Peak memory consumption was 89.9MB. Max. memory is 16.0GB. [2023-08-23 23:50:36,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 362.8MB. Free memory was 340.1MB in the beginning and 340.1MB in the end (delta: 74.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 503.49ms. Allocated memory is still 362.8MB. Free memory was 319.4MB in the beginning and 300.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.17ms. Allocated memory is still 362.8MB. Free memory was 300.4MB in the beginning and 298.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.85ms. Allocated memory is still 362.8MB. Free memory was 298.4MB in the beginning and 297.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 308.33ms. Allocated memory is still 362.8MB. Free memory was 297.1MB in the beginning and 331.6MB in the end (delta: -34.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.0GB. * TraceAbstraction took 2185.35ms. Allocated memory is still 362.8MB. Free memory was 330.9MB in the beginning and 240.7MB in the end (delta: 90.3MB). Peak memory consumption was 89.9MB. 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: 1.8s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , 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: 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}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=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, 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, 81 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: 2.1s, 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! [2023-08-23 23:50:36,833 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...