/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:58:45,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:58:45,774 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 [2023-08-26 06:58:45,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:58:45,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:58:45,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:58:45,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:58:45,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:58:45,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:58:45,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:58:45,815 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:58:45,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:58:45,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:58:45,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:58:45,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:58:45,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:58:45,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:58:45,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:58:45,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:58:45,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:58:45,818 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:58:45,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:58:45,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:58:45,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:58:45,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:58:45,822 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:58:45,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:58:45,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:58:45,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:58:45,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:58:45,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:58:45,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:58:45,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:58:45,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:58:45,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:58:45,824 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:58:46,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:58:46,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:58:46,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:58:46,141 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:58:46,142 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:58:46,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2023-08-26 06:58:47,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:58:47,645 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:58:47,646 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2023-08-26 06:58:47,658 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/560e5b3cb/17978bc4e6a145eba0ec25e877cccbec/FLAG0d24b5519 [2023-08-26 06:58:47,673 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/560e5b3cb/17978bc4e6a145eba0ec25e877cccbec [2023-08-26 06:58:47,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:58:47,676 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:58:47,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:58:47,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:58:47,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:58:47,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:58:47" (1/1) ... [2023-08-26 06:58:47,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464d72bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:47, skipping insertion in model container [2023-08-26 06:58:47,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:58:47" (1/1) ... [2023-08-26 06:58:47,717 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:58:48,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:58:48,028 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:58:48,058 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-26 06:58:48,059 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-26 06:58:48,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:58:48,127 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:58:48,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48 WrapperNode [2023-08-26 06:58:48,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:58:48,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:58:48,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:58:48,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:58:48,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,188 INFO L138 Inliner]: procedures = 164, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2023-08-26 06:58:48,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:58:48,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:58:48,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:58:48,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:58:48,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:58:48,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:58:48,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:58:48,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:58:48,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (1/1) ... [2023-08-26 06:58:48,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:58:48,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:58:48,270 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) [2023-08-26 06:58:48,295 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 [2023-08-26 06:58:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:58:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:58:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:58:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:58:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:58:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 06:58:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 06:58:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:58:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:58:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:58:48,311 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:58:48,460 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:58:48,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:58:48,653 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:58:48,660 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:58:48,661 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-26 06:58:48,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:58:48 BoogieIcfgContainer [2023-08-26 06:58:48,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:58:48,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:58:48,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:58:48,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:58:48,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:58:47" (1/3) ... [2023-08-26 06:58:48,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487db9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:58:48, skipping insertion in model container [2023-08-26 06:58:48,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:48" (2/3) ... [2023-08-26 06:58:48,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487db9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:58:48, skipping insertion in model container [2023-08-26 06:58:48,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:58:48" (3/3) ... [2023-08-26 06:58:48,670 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2023-08-26 06:58:48,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:58:48,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-26 06:58:48,686 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:58:48,737 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 06:58:48,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 91 transitions, 187 flow [2023-08-26 06:58:48,830 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-26 06:58:48,830 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:48,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-26 06:58:48,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 91 transitions, 187 flow [2023-08-26 06:58:48,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 90 transitions, 183 flow [2023-08-26 06:58:48,869 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:58:48,881 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 90 transitions, 183 flow [2023-08-26 06:58:48,884 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 90 transitions, 183 flow [2023-08-26 06:58:48,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 90 transitions, 183 flow [2023-08-26 06:58:48,906 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-26 06:58:48,906 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:48,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-26 06:58:48,908 INFO L119 LiptonReduction]: Number of co-enabled transitions 1450 [2023-08-26 06:58:50,380 INFO L134 LiptonReduction]: Checked pairs total: 7570 [2023-08-26 06:58:50,380 INFO L136 LiptonReduction]: Total number of compositions: 60 [2023-08-26 06:58:50,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:58:50,407 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;@6f120a28, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:58:50,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-26 06:58:50,417 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:58:50,417 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-08-26 06:58:50,418 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:50,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:50,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:50,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:50,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:50,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2055948646, now seen corresponding path program 1 times [2023-08-26 06:58:50,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:50,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002086588] [2023-08-26 06:58:50,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:50,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:50,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002086588] [2023-08-26 06:58:50,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002086588] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:58:50,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:58:50,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:58:50,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746226572] [2023-08-26 06:58:50,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:58:50,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:58:50,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:50,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:58:50,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:58:50,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 151 [2023-08-26 06:58:50,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:50,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:50,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 151 [2023-08-26 06:58:50,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:50,794 INFO L124 PetriNetUnfolderBase]: 37/165 cut-off events. [2023-08-26 06:58:50,794 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:50,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 165 events. 37/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 244. Up to 89 conditions per place. [2023-08-26 06:58:50,797 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-26 06:58:50,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2023-08-26 06:58:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:58:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:58:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-26 06:58:50,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5695364238410596 [2023-08-26 06:58:50,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-26 06:58:50,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-26 06:58:50,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:50,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-26 06:58:50,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:50,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:50,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:50,822 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 258 transitions. [2023-08-26 06:58:50,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2023-08-26 06:58:50,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:58:50,826 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-08-26 06:58:50,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-08-26 06:58:50,831 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-08-26 06:58:50,832 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-08-26 06:58:50,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:50,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:50,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:50,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:58:50,833 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:50,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:50,833 INFO L85 PathProgramCache]: Analyzing trace with hash 789808624, now seen corresponding path program 1 times [2023-08-26 06:58:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:50,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872275945] [2023-08-26 06:58:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:50,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:50,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:50,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872275945] [2023-08-26 06:58:50,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872275945] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:58:50,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107627289] [2023-08-26 06:58:50,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:50,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:58:50,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:58:50,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:58:50,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 06:58:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:51,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 06:58:51,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:58:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:51,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:58:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:51,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107627289] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:58:51,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:58:51,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-26 06:58:51,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178929305] [2023-08-26 06:58:51,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:58:51,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 06:58:51,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:51,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 06:58:51,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 06:58:51,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 151 [2023-08-26 06:58:51,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:51,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:51,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 151 [2023-08-26 06:58:51,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:51,229 INFO L124 PetriNetUnfolderBase]: 37/168 cut-off events. [2023-08-26 06:58:51,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:51,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 168 events. 37/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 263. Up to 89 conditions per place. [2023-08-26 06:58:51,232 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-26 06:58:51,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2023-08-26 06:58:51,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:58:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:58:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-08-26 06:58:51,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5551876379690949 [2023-08-26 06:58:51,238 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-08-26 06:58:51,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-08-26 06:58:51,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:51,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-08-26 06:58:51,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:51,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:51,247 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:51,247 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 503 transitions. [2023-08-26 06:58:51,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2023-08-26 06:58:51,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 06:58:51,252 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-08-26 06:58:51,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-26 06:58:51,258 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-08-26 06:58:51,259 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-08-26 06:58:51,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:51,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:51,262 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:51,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 06:58:51,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:58:51,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:51,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:51,469 INFO L85 PathProgramCache]: Analyzing trace with hash -194283467, now seen corresponding path program 2 times [2023-08-26 06:58:51,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:51,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949697185] [2023-08-26 06:58:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:51,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 06:58:51,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:51,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949697185] [2023-08-26 06:58:51,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949697185] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:58:51,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:58:51,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:58:51,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169480804] [2023-08-26 06:58:51,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:58:51,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:58:51,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:51,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:58:51,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:58:51,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 151 [2023-08-26 06:58:51,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:51,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:51,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 151 [2023-08-26 06:58:51,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:52,217 INFO L124 PetriNetUnfolderBase]: 408/878 cut-off events. [2023-08-26 06:58:52,218 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 06:58:52,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 878 events. 408/878 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4469 event pairs, 111 based on Foata normal form. 0/770 useless extension candidates. Maximal degree in co-relation 1750. Up to 387 conditions per place. [2023-08-26 06:58:52,226 INFO L140 encePairwiseOnDemand]: 129/151 looper letters, 124 selfloop transitions, 42 changer transitions 0/166 dead transitions. [2023-08-26 06:58:52,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 166 transitions, 702 flow [2023-08-26 06:58:52,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:58:52,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:58:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2023-08-26 06:58:52,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.565121412803532 [2023-08-26 06:58:52,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2023-08-26 06:58:52,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2023-08-26 06:58:52,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:52,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2023-08-26 06:58:52,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,233 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,233 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 512 transitions. [2023-08-26 06:58:52,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 166 transitions, 702 flow [2023-08-26 06:58:52,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 166 transitions, 688 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-26 06:58:52,237 INFO L231 Difference]: Finished difference. Result has 57 places, 86 transitions, 420 flow [2023-08-26 06:58:52,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=57, PETRI_TRANSITIONS=86} [2023-08-26 06:58:52,238 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-08-26 06:58:52,238 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 86 transitions, 420 flow [2023-08-26 06:58:52,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:52,239 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:52,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:58:52,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:52,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash 2103674409, now seen corresponding path program 1 times [2023-08-26 06:58:52,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:52,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126998869] [2023-08-26 06:58:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:52,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:52,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:52,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126998869] [2023-08-26 06:58:52,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126998869] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:58:52,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605630087] [2023-08-26 06:58:52,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:52,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:58:52,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:58:52,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:58:52,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 06:58:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:52,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 06:58:52,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:58:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:52,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:58:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605630087] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:58:52,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:58:52,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-26 06:58:52,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682701892] [2023-08-26 06:58:52,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:58:52,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-26 06:58:52,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:52,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-26 06:58:52,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-26 06:58:52,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 151 [2023-08-26 06:58:52,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 86 transitions, 420 flow. Second operand has 13 states, 13 states have (on average 81.46153846153847) internal successors, (1059), 13 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:52,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 151 [2023-08-26 06:58:52,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:52,645 INFO L124 PetriNetUnfolderBase]: 150/511 cut-off events. [2023-08-26 06:58:52,645 INFO L125 PetriNetUnfolderBase]: For 273/282 co-relation queries the response was YES. [2023-08-26 06:58:52,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 511 events. 150/511 cut-off events. For 273/282 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2988 event pairs, 61 based on Foata normal form. 6/503 useless extension candidates. Maximal degree in co-relation 1280. Up to 212 conditions per place. [2023-08-26 06:58:52,649 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 35 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2023-08-26 06:58:52,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 92 transitions, 548 flow [2023-08-26 06:58:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 06:58:52,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 06:58:52,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 992 transitions. [2023-08-26 06:58:52,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5474613686534217 [2023-08-26 06:58:52,652 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 992 transitions. [2023-08-26 06:58:52,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 992 transitions. [2023-08-26 06:58:52,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:52,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 992 transitions. [2023-08-26 06:58:52,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 82.66666666666667) internal successors, (992), 12 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 151.0) internal successors, (1963), 13 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,659 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 151.0) internal successors, (1963), 13 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,659 INFO L175 Difference]: Start difference. First operand has 57 places, 86 transitions, 420 flow. Second operand 12 states and 992 transitions. [2023-08-26 06:58:52,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 92 transitions, 548 flow [2023-08-26 06:58:52,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:58:52,667 INFO L231 Difference]: Finished difference. Result has 74 places, 92 transitions, 504 flow [2023-08-26 06:58:52,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=504, PETRI_PLACES=74, PETRI_TRANSITIONS=92} [2023-08-26 06:58:52,669 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 35 predicate places. [2023-08-26 06:58:52,669 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 92 transitions, 504 flow [2023-08-26 06:58:52,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.46153846153847) internal successors, (1059), 13 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:52,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:52,670 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:52,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 06:58:52,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-26 06:58:52,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:52,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1359674295, now seen corresponding path program 2 times [2023-08-26 06:58:52,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:52,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646896584] [2023-08-26 06:58:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:52,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:53,166 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:58:53,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:53,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646896584] [2023-08-26 06:58:53,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646896584] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:58:53,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:58:53,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:58:53,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675803907] [2023-08-26 06:58:53,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:58:53,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:58:53,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:53,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:58:53,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:58:53,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 151 [2023-08-26 06:58:53,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 92 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:53,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:53,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 151 [2023-08-26 06:58:53,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:53,521 INFO L124 PetriNetUnfolderBase]: 535/1151 cut-off events. [2023-08-26 06:58:53,521 INFO L125 PetriNetUnfolderBase]: For 611/611 co-relation queries the response was YES. [2023-08-26 06:58:53,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3519 conditions, 1151 events. 535/1151 cut-off events. For 611/611 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6165 event pairs, 163 based on Foata normal form. 25/1176 useless extension candidates. Maximal degree in co-relation 3439. Up to 768 conditions per place. [2023-08-26 06:58:53,531 INFO L140 encePairwiseOnDemand]: 134/151 looper letters, 132 selfloop transitions, 53 changer transitions 6/191 dead transitions. [2023-08-26 06:58:53,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 191 transitions, 1278 flow [2023-08-26 06:58:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:58:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:58:53,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 457 transitions. [2023-08-26 06:58:53,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044150110375276 [2023-08-26 06:58:53,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 457 transitions. [2023-08-26 06:58:53,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 457 transitions. [2023-08-26 06:58:53,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:53,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 457 transitions. [2023-08-26 06:58:53,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:53,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:53,537 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:53,538 INFO L175 Difference]: Start difference. First operand has 74 places, 92 transitions, 504 flow. Second operand 6 states and 457 transitions. [2023-08-26 06:58:53,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 191 transitions, 1278 flow [2023-08-26 06:58:53,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 191 transitions, 1230 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-26 06:58:53,546 INFO L231 Difference]: Finished difference. Result has 79 places, 143 transitions, 962 flow [2023-08-26 06:58:53,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=79, PETRI_TRANSITIONS=143} [2023-08-26 06:58:53,547 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 40 predicate places. [2023-08-26 06:58:53,547 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 143 transitions, 962 flow [2023-08-26 06:58:53,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:53,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:53,547 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:53,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 06:58:53,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:53,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:53,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1707002366, now seen corresponding path program 1 times [2023-08-26 06:58:53,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:53,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649506357] [2023-08-26 06:58:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:53,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:53,851 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:58:53,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:53,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649506357] [2023-08-26 06:58:53,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649506357] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:58:53,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:58:53,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:58:53,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154549035] [2023-08-26 06:58:53,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:58:53,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:58:53,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:53,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:58:53,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:58:53,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 151 [2023-08-26 06:58:53,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 143 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:53,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:53,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 151 [2023-08-26 06:58:53,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:54,240 INFO L124 PetriNetUnfolderBase]: 633/1368 cut-off events. [2023-08-26 06:58:54,240 INFO L125 PetriNetUnfolderBase]: For 1969/1969 co-relation queries the response was YES. [2023-08-26 06:58:54,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5240 conditions, 1368 events. 633/1368 cut-off events. For 1969/1969 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7697 event pairs, 164 based on Foata normal form. 29/1397 useless extension candidates. Maximal degree in co-relation 5180. Up to 946 conditions per place. [2023-08-26 06:58:54,252 INFO L140 encePairwiseOnDemand]: 134/151 looper letters, 154 selfloop transitions, 58 changer transitions 43/255 dead transitions. [2023-08-26 06:58:54,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 255 transitions, 2078 flow [2023-08-26 06:58:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:58:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:58:54,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2023-08-26 06:58:54,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4977924944812362 [2023-08-26 06:58:54,254 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 451 transitions. [2023-08-26 06:58:54,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 451 transitions. [2023-08-26 06:58:54,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:54,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 451 transitions. [2023-08-26 06:58:54,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:54,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:54,257 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:54,257 INFO L175 Difference]: Start difference. First operand has 79 places, 143 transitions, 962 flow. Second operand 6 states and 451 transitions. [2023-08-26 06:58:54,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 255 transitions, 2078 flow [2023-08-26 06:58:54,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 255 transitions, 2070 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-26 06:58:54,271 INFO L231 Difference]: Finished difference. Result has 88 places, 170 transitions, 1362 flow [2023-08-26 06:58:54,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1362, PETRI_PLACES=88, PETRI_TRANSITIONS=170} [2023-08-26 06:58:54,272 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 49 predicate places. [2023-08-26 06:58:54,272 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 170 transitions, 1362 flow [2023-08-26 06:58:54,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:54,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:54,272 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:54,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 06:58:54,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:54,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:54,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1741981951, now seen corresponding path program 1 times [2023-08-26 06:58:54,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:54,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462219837] [2023-08-26 06:58:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:54,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:58:54,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:58:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:58:54,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:58:54,330 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:58:54,331 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-26 06:58:54,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-26 06:58:54,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-26 06:58:54,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-26 06:58:54,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-26 06:58:54,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-26 06:58:54,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-26 06:58:54,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 06:58:54,333 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-08-26 06:58:54,338 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:58:54,338 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:58:54,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:58:54 BasicIcfg [2023-08-26 06:58:54,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:58:54,370 INFO L158 Benchmark]: Toolchain (without parser) took 6692.66ms. Allocated memory was 356.5MB in the beginning and 476.1MB in the end (delta: 119.5MB). Free memory was 331.9MB in the beginning and 250.2MB in the end (delta: 81.7MB). Peak memory consumption was 201.8MB. Max. memory is 16.0GB. [2023-08-26 06:58:54,370 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 356.5MB. Free memory is still 333.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:58:54,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.83ms. Allocated memory is still 356.5MB. Free memory was 331.9MB in the beginning and 312.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 06:58:54,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.00ms. Allocated memory is still 356.5MB. Free memory was 312.6MB in the beginning and 310.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:58:54,371 INFO L158 Benchmark]: Boogie Preprocessor took 44.34ms. Allocated memory is still 356.5MB. Free memory was 310.5MB in the beginning and 308.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:58:54,372 INFO L158 Benchmark]: RCFGBuilder took 429.02ms. Allocated memory is still 356.5MB. Free memory was 308.4MB in the beginning and 293.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 06:58:54,372 INFO L158 Benchmark]: TraceAbstraction took 5703.37ms. Allocated memory was 356.5MB in the beginning and 476.1MB in the end (delta: 119.5MB). Free memory was 292.7MB in the beginning and 250.2MB in the end (delta: 42.5MB). Peak memory consumption was 164.0MB. Max. memory is 16.0GB. [2023-08-26 06:58:54,373 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 356.5MB. Free memory is still 333.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 450.83ms. Allocated memory is still 356.5MB. Free memory was 331.9MB in the beginning and 312.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.00ms. Allocated memory is still 356.5MB. Free memory was 312.6MB in the beginning and 310.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 44.34ms. Allocated memory is still 356.5MB. Free memory was 310.5MB in the beginning and 308.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 429.02ms. Allocated memory is still 356.5MB. Free memory was 308.4MB in the beginning and 293.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 5703.37ms. Allocated memory was 356.5MB in the beginning and 476.1MB in the end (delta: 119.5MB). Free memory was 292.7MB in the beginning and 250.2MB in the end (delta: 42.5MB). Peak memory consumption was 164.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - 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: 1.5s, 91 PlacesBefore, 39 PlacesAfterwards, 90 TransitionsBefore, 36 TransitionsAfterwards, 1450 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 60 TotalNumberOfCompositions, 7570 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1855, independent: 1459, independent conditional: 0, independent unconditional: 1459, dependent: 396, dependent conditional: 0, dependent unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 636, independent: 586, independent conditional: 0, independent unconditional: 586, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1855, independent: 873, independent conditional: 0, independent unconditional: 873, dependent: 346, dependent conditional: 0, dependent unconditional: 346, unknown: 636, unknown conditional: 0, unknown unconditional: 636] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; [L685] 0 pthread_mutex_t m[10]; [L693] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L693] COND FALSE 0 !(i < 10) [L695] 0 int i = __VERIFIER_nondet_int(); [L696] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L696] RET 0 assume_abort_if_not(0 <= i && i < 10) [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=0, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L688] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] EXPR 0 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]++=241, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]++=241, data[4]=0, data[4]=0, i=0, id={3:0}, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [688] and C: data[4]++ [700] - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - 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. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 116 locations, 7 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: 5.6s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 959 IncrementalHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 44 mSDtfsCounter, 959 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1362occurred in iteration=6, InterpolantAutomatonStates: 39, 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, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 120/153 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! [2023-08-26 06:58:54,430 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...