/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:57:11,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:57:11,624 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 [2023-08-25 03:57:11,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:57:11,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:57:11,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:57:11,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:57:11,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:57:11,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:57:11,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:57:11,678 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:57:11,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:57:11,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:57:11,680 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:57:11,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:57:11,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:57:11,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:57:11,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:57:11,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:57:11,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:57:11,681 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:57:11,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:57:11,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:57:11,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:57:11,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:57:11,683 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:57:11,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:57:11,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:57:11,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:57:11,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:57:11,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:57:11,685 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:57:11,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:57:11,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:57:11,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:57:11,686 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:57:12,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:57:12,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:57:12,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:57:12,059 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:57:12,059 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:57:12,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2023-08-25 03:57:13,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:57:13,690 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:57:13,690 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2023-08-25 03:57:13,709 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ce29b343/cddc311fc6374b10b9b7c923959d2f21/FLAG12e151ab5 [2023-08-25 03:57:13,725 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ce29b343/cddc311fc6374b10b9b7c923959d2f21 [2023-08-25 03:57:13,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:57:13,731 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:57:13,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:57:13,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:57:13,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:57:13,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:57:13" (1/1) ... [2023-08-25 03:57:13,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56475abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:13, skipping insertion in model container [2023-08-25 03:57:13,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:57:13" (1/1) ... [2023-08-25 03:57:13,783 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:57:14,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:57:14,111 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:57:14,140 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 03:57:14,142 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 03:57:14,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:57:14,208 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:57:14,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14 WrapperNode [2023-08-25 03:57:14,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:57:14,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:57:14,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:57:14,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:57:14,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,253 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-08-25 03:57:14,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:57:14,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:57:14,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:57:14,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:57:14,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:57:14,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:57:14,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:57:14,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:57:14,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (1/1) ... [2023-08-25 03:57:14,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:57:14,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:57:14,314 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) [2023-08-25 03:57:14,317 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 [2023-08-25 03:57:14,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:57:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:57:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:57:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:57:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:57:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:57:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:57:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:57:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:57:14,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:57:14,344 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:57:14,472 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:57:14,474 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:57:14,601 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:57:14,606 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:57:14,607 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:57:14,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:57:14 BoogieIcfgContainer [2023-08-25 03:57:14,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:57:14,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:57:14,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:57:14,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:57:14,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:57:13" (1/3) ... [2023-08-25 03:57:14,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a19e413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:57:14, skipping insertion in model container [2023-08-25 03:57:14,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:14" (2/3) ... [2023-08-25 03:57:14,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a19e413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:57:14, skipping insertion in model container [2023-08-25 03:57:14,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:57:14" (3/3) ... [2023-08-25 03:57:14,615 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2023-08-25 03:57:14,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:57:14,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 03:57:14,631 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:57:14,670 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:57:14,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2023-08-25 03:57:14,737 INFO L124 PetriNetUnfolderBase]: 2/77 cut-off events. [2023-08-25 03:57:14,737 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:57:14,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-25 03:57:14,741 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2023-08-25 03:57:14,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 77 transitions, 157 flow [2023-08-25 03:57:14,748 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:57:14,755 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 77 transitions, 157 flow [2023-08-25 03:57:14,758 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 77 transitions, 157 flow [2023-08-25 03:57:14,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 77 transitions, 157 flow [2023-08-25 03:57:14,778 INFO L124 PetriNetUnfolderBase]: 2/77 cut-off events. [2023-08-25 03:57:14,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:57:14,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-25 03:57:14,801 INFO L119 LiptonReduction]: Number of co-enabled transitions 1134 [2023-08-25 03:57:17,187 INFO L134 LiptonReduction]: Checked pairs total: 3592 [2023-08-25 03:57:17,187 INFO L136 LiptonReduction]: Total number of compositions: 62 [2023-08-25 03:57:17,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:57:17,205 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;@15dad23a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:57:17,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 03:57:17,209 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:57:17,209 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-25 03:57:17,209 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:57:17,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:17,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:17,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:57:17,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:17,215 INFO L85 PathProgramCache]: Analyzing trace with hash 666900825, now seen corresponding path program 1 times [2023-08-25 03:57:17,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:17,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886876655] [2023-08-25 03:57:17,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:17,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:17,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:17,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:17,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886876655] [2023-08-25 03:57:17,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886876655] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:17,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:17,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:57:17,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887364287] [2023-08-25 03:57:17,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:17,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:17,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:17,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 140 [2023-08-25 03:57:17,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2023-08-25 03:57:17,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:17,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 140 [2023-08-25 03:57:17,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:17,613 INFO L124 PetriNetUnfolderBase]: 97/236 cut-off events. [2023-08-25 03:57:17,613 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:57:17,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 236 events. 97/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 981 event pairs, 36 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 458. Up to 143 conditions per place. [2023-08-25 03:57:17,616 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 29 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-25 03:57:17,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 35 transitions, 139 flow [2023-08-25 03:57:17,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:17,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:17,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-08-25 03:57:17,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5452380952380952 [2023-08-25 03:57:17,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-08-25 03:57:17,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-08-25 03:57:17,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:17,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-08-25 03:57:17,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-08-25 03:57:17,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:17,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:17,640 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 47 flow. Second operand 3 states and 229 transitions. [2023-08-25 03:57:17,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 35 transitions, 139 flow [2023-08-25 03:57:17,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 35 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:57:17,643 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 76 flow [2023-08-25 03:57:17,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2023-08-25 03:57:17,648 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-25 03:57:17,648 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 76 flow [2023-08-25 03:57:17,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2023-08-25 03:57:17,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:17,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:17,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:57:17,649 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:57:17,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:17,650 INFO L85 PathProgramCache]: Analyzing trace with hash 648610333, now seen corresponding path program 1 times [2023-08-25 03:57:17,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:17,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835681868] [2023-08-25 03:57:17,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:17,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:17,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:17,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835681868] [2023-08-25 03:57:17,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835681868] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:17,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:17,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:57:17,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721673781] [2023-08-25 03:57:17,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:17,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:17,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:17,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:17,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:17,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 140 [2023-08-25 03:57:17,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2023-08-25 03:57:17,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:17,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 140 [2023-08-25 03:57:17,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:17,784 INFO L124 PetriNetUnfolderBase]: 91/223 cut-off events. [2023-08-25 03:57:17,784 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-25 03:57:17,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 223 events. 91/223 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 890 event pairs, 66 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 514. Up to 198 conditions per place. [2023-08-25 03:57:17,787 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 28 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-25 03:57:17,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 168 flow [2023-08-25 03:57:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:17,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:17,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2023-08-25 03:57:17,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5214285714285715 [2023-08-25 03:57:17,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2023-08-25 03:57:17,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2023-08-25 03:57:17,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:17,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2023-08-25 03:57:17,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2023-08-25 03:57:17,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:17,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:17,793 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 76 flow. Second operand 3 states and 219 transitions. [2023-08-25 03:57:17,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 168 flow [2023-08-25 03:57:17,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:57:17,795 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 92 flow [2023-08-25 03:57:17,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2023-08-25 03:57:17,796 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-08-25 03:57:17,796 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 92 flow [2023-08-25 03:57:17,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2023-08-25 03:57:17,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:17,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:17,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:57:17,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:57:17,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:17,797 INFO L85 PathProgramCache]: Analyzing trace with hash -800910629, now seen corresponding path program 1 times [2023-08-25 03:57:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:17,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136783326] [2023-08-25 03:57:17,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:17,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:17,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:17,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136783326] [2023-08-25 03:57:17,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136783326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:17,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:17,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 03:57:17,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59011338] [2023-08-25 03:57:17,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:17,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:17,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:17,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:17,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:17,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2023-08-25 03:57:17,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2023-08-25 03:57:17,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:17,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2023-08-25 03:57:17,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:17,942 INFO L124 PetriNetUnfolderBase]: 52/169 cut-off events. [2023-08-25 03:57:17,942 INFO L125 PetriNetUnfolderBase]: For 54/58 co-relation queries the response was YES. [2023-08-25 03:57:17,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 169 events. 52/169 cut-off events. For 54/58 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 725 event pairs, 24 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 372. Up to 82 conditions per place. [2023-08-25 03:57:17,944 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 21 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-25 03:57:17,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 35 transitions, 168 flow [2023-08-25 03:57:17,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:17,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:17,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2023-08-25 03:57:17,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5547619047619048 [2023-08-25 03:57:17,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2023-08-25 03:57:17,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2023-08-25 03:57:17,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:17,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2023-08-25 03:57:17,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-25 03:57:17,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:17,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:17,950 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 92 flow. Second operand 3 states and 233 transitions. [2023-08-25 03:57:17,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 35 transitions, 168 flow [2023-08-25 03:57:17,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:57:17,952 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 114 flow [2023-08-25 03:57:17,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2023-08-25 03:57:17,953 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-25 03:57:17,953 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 114 flow [2023-08-25 03:57:17,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2023-08-25 03:57:17,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:17,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:17,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:57:17,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:57:17,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:17,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1929454304, now seen corresponding path program 1 times [2023-08-25 03:57:17,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:17,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059545643] [2023-08-25 03:57:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:17,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:18,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:18,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059545643] [2023-08-25 03:57:18,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059545643] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:18,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:18,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:57:18,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104079097] [2023-08-25 03:57:18,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:18,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:18,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:18,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:18,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:18,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 140 [2023-08-25 03:57:18,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2023-08-25 03:57:18,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:18,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 140 [2023-08-25 03:57:18,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:18,118 INFO L124 PetriNetUnfolderBase]: 44/151 cut-off events. [2023-08-25 03:57:18,119 INFO L125 PetriNetUnfolderBase]: For 100/108 co-relation queries the response was YES. [2023-08-25 03:57:18,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 151 events. 44/151 cut-off events. For 100/108 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 690 event pairs, 11 based on Foata normal form. 6/148 useless extension candidates. Maximal degree in co-relation 388. Up to 60 conditions per place. [2023-08-25 03:57:18,122 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 19 selfloop transitions, 4 changer transitions 4/37 dead transitions. [2023-08-25 03:57:18,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 196 flow [2023-08-25 03:57:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-08-25 03:57:18,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429 [2023-08-25 03:57:18,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-08-25 03:57:18,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-08-25 03:57:18,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:18,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-08-25 03:57:18,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-08-25 03:57:18,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:18,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:18,129 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 114 flow. Second operand 3 states and 207 transitions. [2023-08-25 03:57:18,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 196 flow [2023-08-25 03:57:18,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:57:18,133 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 120 flow [2023-08-25 03:57:18,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2023-08-25 03:57:18,135 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2023-08-25 03:57:18,135 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 120 flow [2023-08-25 03:57:18,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2023-08-25 03:57:18,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:18,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:18,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:57:18,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:57:18,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:18,138 INFO L85 PathProgramCache]: Analyzing trace with hash 807028808, now seen corresponding path program 2 times [2023-08-25 03:57:18,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:18,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041912117] [2023-08-25 03:57:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:18,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:18,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:18,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041912117] [2023-08-25 03:57:18,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041912117] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:18,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:18,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 03:57:18,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31160131] [2023-08-25 03:57:18,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:18,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 03:57:18,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:18,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 03:57:18,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 03:57:18,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 140 [2023-08-25 03:57:18,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 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) [2023-08-25 03:57:18,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:18,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 140 [2023-08-25 03:57:18,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:18,337 INFO L124 PetriNetUnfolderBase]: 14/81 cut-off events. [2023-08-25 03:57:18,338 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-25 03:57:18,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 81 events. 14/81 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 270 event pairs, 5 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 205. Up to 42 conditions per place. [2023-08-25 03:57:18,342 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 14 selfloop transitions, 4 changer transitions 3/29 dead transitions. [2023-08-25 03:57:18,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 157 flow [2023-08-25 03:57:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:57:18,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:57:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2023-08-25 03:57:18,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2023-08-25 03:57:18,348 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 240 transitions. [2023-08-25 03:57:18,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 240 transitions. [2023-08-25 03:57:18,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:18,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 240 transitions. [2023-08-25 03:57:18,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2023-08-25 03:57:18,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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) [2023-08-25 03:57:18,351 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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) [2023-08-25 03:57:18,352 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 120 flow. Second operand 4 states and 240 transitions. [2023-08-25 03:57:18,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 157 flow [2023-08-25 03:57:18,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 139 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 03:57:18,355 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 92 flow [2023-08-25 03:57:18,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-08-25 03:57:18,358 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2023-08-25 03:57:18,358 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 92 flow [2023-08-25 03:57:18,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 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) [2023-08-25 03:57:18,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:18,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:18,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:57:18,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:57:18,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:18,359 INFO L85 PathProgramCache]: Analyzing trace with hash -902753788, now seen corresponding path program 1 times [2023-08-25 03:57:18,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:18,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748620528] [2023-08-25 03:57:18,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:18,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:18,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:18,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748620528] [2023-08-25 03:57:18,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748620528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:18,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:18,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:57:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139700515] [2023-08-25 03:57:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:18,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:18,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:18,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:18,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 140 [2023-08-25 03:57:18,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2023-08-25 03:57:18,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:18,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 140 [2023-08-25 03:57:18,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:18,439 INFO L124 PetriNetUnfolderBase]: 33/107 cut-off events. [2023-08-25 03:57:18,440 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-08-25 03:57:18,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 107 events. 33/107 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 314 event pairs, 19 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 284. Up to 91 conditions per place. [2023-08-25 03:57:18,440 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 21 selfloop transitions, 4 changer transitions 6/33 dead transitions. [2023-08-25 03:57:18,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 182 flow [2023-08-25 03:57:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:18,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2023-08-25 03:57:18,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2023-08-25 03:57:18,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2023-08-25 03:57:18,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2023-08-25 03:57:18,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:18,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2023-08-25 03:57:18,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2023-08-25 03:57:18,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:18,445 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-25 03:57:18,445 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 92 flow. Second operand 3 states and 217 transitions. [2023-08-25 03:57:18,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 182 flow [2023-08-25 03:57:18,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:57:18,446 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 96 flow [2023-08-25 03:57:18,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2023-08-25 03:57:18,447 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-25 03:57:18,447 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 96 flow [2023-08-25 03:57:18,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2023-08-25 03:57:18,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:18,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:18,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:57:18,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:57:18,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:18,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1609656552, now seen corresponding path program 1 times [2023-08-25 03:57:18,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:18,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415199001] [2023-08-25 03:57:18,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:18,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:18,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:18,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415199001] [2023-08-25 03:57:18,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415199001] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:18,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:18,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:57:18,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915055702] [2023-08-25 03:57:18,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:18,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 03:57:18,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:18,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 03:57:18,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 03:57:18,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 140 [2023-08-25 03:57:18,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-08-25 03:57:18,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:18,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 140 [2023-08-25 03:57:18,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:18,614 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2023-08-25 03:57:18,615 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-25 03:57:18,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 27 events. 1/27 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 3/30 useless extension candidates. Maximal degree in co-relation 64. Up to 14 conditions per place. [2023-08-25 03:57:18,615 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-08-25 03:57:18,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 19 transitions, 104 flow [2023-08-25 03:57:18,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:57:18,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:57:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2023-08-25 03:57:18,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42142857142857143 [2023-08-25 03:57:18,616 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 236 transitions. [2023-08-25 03:57:18,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 236 transitions. [2023-08-25 03:57:18,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:18,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 236 transitions. [2023-08-25 03:57:18,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2023-08-25 03:57:18,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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) [2023-08-25 03:57:18,619 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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) [2023-08-25 03:57:18,619 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 96 flow. Second operand 4 states and 236 transitions. [2023-08-25 03:57:18,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 19 transitions, 104 flow [2023-08-25 03:57:18,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 78 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-25 03:57:18,619 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-25 03:57:18,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-25 03:57:18,620 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2023-08-25 03:57:18,620 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-25 03:57:18,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-08-25 03:57:18,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 03:57:18,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (5 of 7 remaining) [2023-08-25 03:57:18,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-25 03:57:18,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-25 03:57:18,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 03:57:18,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 03:57:18,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 03:57:18,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:57:18,624 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-25 03:57:18,628 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:57:18,628 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:57:18,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:57:18 BasicIcfg [2023-08-25 03:57:18,631 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:57:18,632 INFO L158 Benchmark]: Toolchain (without parser) took 4900.63ms. Allocated memory was 348.1MB in the beginning and 448.8MB in the end (delta: 100.7MB). Free memory was 323.3MB in the beginning and 277.8MB in the end (delta: 45.5MB). Peak memory consumption was 147.7MB. Max. memory is 16.0GB. [2023-08-25 03:57:18,632 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 348.1MB. Free memory is still 324.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:57:18,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.92ms. Allocated memory is still 348.1MB. Free memory was 322.8MB in the beginning and 304.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:57:18,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.98ms. Allocated memory is still 348.1MB. Free memory was 304.0MB in the beginning and 302.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:57:18,633 INFO L158 Benchmark]: Boogie Preprocessor took 30.50ms. Allocated memory is still 348.1MB. Free memory was 302.2MB in the beginning and 300.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:57:18,633 INFO L158 Benchmark]: RCFGBuilder took 322.85ms. Allocated memory is still 348.1MB. Free memory was 300.8MB in the beginning and 287.7MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 03:57:18,633 INFO L158 Benchmark]: TraceAbstraction took 4020.70ms. Allocated memory was 348.1MB in the beginning and 448.8MB in the end (delta: 100.7MB). Free memory was 286.7MB in the beginning and 277.8MB in the end (delta: 8.9MB). Peak memory consumption was 112.0MB. Max. memory is 16.0GB. [2023-08-25 03:57:18,635 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 348.1MB. Free memory is still 324.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 475.92ms. Allocated memory is still 348.1MB. Free memory was 322.8MB in the beginning and 304.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.98ms. Allocated memory is still 348.1MB. Free memory was 304.0MB in the beginning and 302.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.50ms. Allocated memory is still 348.1MB. Free memory was 302.2MB in the beginning and 300.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 322.85ms. Allocated memory is still 348.1MB. Free memory was 300.8MB in the beginning and 287.7MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4020.70ms. Allocated memory was 348.1MB in the beginning and 448.8MB in the end (delta: 100.7MB). Free memory was 286.7MB in the beginning and 277.8MB in the end (delta: 8.9MB). Peak memory consumption was 112.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 79 PlacesBefore, 26 PlacesAfterwards, 77 TransitionsBefore, 22 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 62 TotalNumberOfCompositions, 3592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1229, independent: 997, independent conditional: 0, independent unconditional: 997, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 600, independent: 564, independent conditional: 0, independent unconditional: 564, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1229, independent: 433, independent conditional: 0, independent unconditional: 433, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 600, unknown conditional: 0, unknown unconditional: 600] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 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: 3.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 231 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 18 mSDtfsCounter, 231 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=4, InterpolantAutomatonStates: 23, 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, 0.6s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 03:57:18,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...