/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/06-symbeq_23-idxsense_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:25:49,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:25:49,290 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 03:25:49,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:25:49,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:25:49,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:25:49,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:25:49,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:25:49,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:25:49,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:25:49,308 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:25:49,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:25:49,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:25:49,309 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:25:49,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:25:49,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:25:49,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:25:49,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:25:49,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:25:49,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:25:49,311 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:25:49,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:25:49,311 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:25:49,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:25:49,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:25:49,312 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:25:49,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:25:49,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:25:49,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:25:49,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:25:49,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:25:49,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:25:49,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:25:49,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:25:49,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:25:49,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:25:49,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:25:49,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:25:49,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:25:49,640 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:25:49,640 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:25:49,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-25 03:25:50,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:25:51,147 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:25:51,147 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-25 03:25:51,163 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948dbc73e/d539aef25b204861ae7c5518a71d0ea2/FLAGbb3abc773 [2023-08-25 03:25:51,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948dbc73e/d539aef25b204861ae7c5518a71d0ea2 [2023-08-25 03:25:51,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:25:51,183 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:25:51,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:25:51,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:25:51,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:25:51,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382d132d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51, skipping insertion in model container [2023-08-25 03:25:51,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,226 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:25:51,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:25:51,501 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:25:51,525 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:25:51,526 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:25:51,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:25:51,581 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:25:51,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51 WrapperNode [2023-08-25 03:25:51,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:25:51,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:25:51,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:25:51,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:25:51,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,638 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2023-08-25 03:25:51,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:25:51,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:25:51,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:25:51,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:25:51,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:25:51,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:25:51,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:25:51,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:25:51,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (1/1) ... [2023-08-25 03:25:51,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:25:51,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:25:51,746 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 03:25:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:25:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:25:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:25:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:25:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:25:51,760 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 03:25:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:25:51,781 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:25:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:25:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:25:51,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:25:51,782 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 03:25:51,900 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:25:51,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:25:52,131 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:25:52,138 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:25:52,139 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-25 03:25:52,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:25:52 BoogieIcfgContainer [2023-08-25 03:25:52,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:25:52,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:25:52,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:25:52,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:25:52,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:25:51" (1/3) ... [2023-08-25 03:25:52,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9f524a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:25:52, skipping insertion in model container [2023-08-25 03:25:52,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:25:51" (2/3) ... [2023-08-25 03:25:52,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9f524a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:25:52, skipping insertion in model container [2023-08-25 03:25:52,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:25:52" (3/3) ... [2023-08-25 03:25:52,148 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2023-08-25 03:25:52,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:25:52,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-25 03:25:52,161 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:25:52,214 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:25:52,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 102 transitions, 209 flow [2023-08-25 03:25:52,290 INFO L124 PetriNetUnfolderBase]: 2/101 cut-off events. [2023-08-25 03:25:52,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:25:52,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-25 03:25:52,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 102 transitions, 209 flow [2023-08-25 03:25:52,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 101 transitions, 205 flow [2023-08-25 03:25:52,301 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:25:52,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 101 transitions, 205 flow [2023-08-25 03:25:52,314 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 101 transitions, 205 flow [2023-08-25 03:25:52,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 205 flow [2023-08-25 03:25:52,342 INFO L124 PetriNetUnfolderBase]: 2/101 cut-off events. [2023-08-25 03:25:52,342 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:25:52,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-25 03:25:52,344 INFO L119 LiptonReduction]: Number of co-enabled transitions 2550 [2023-08-25 03:25:53,361 INFO L134 LiptonReduction]: Checked pairs total: 11251 [2023-08-25 03:25:53,361 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-25 03:25:53,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:25:53,375 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;@1321955d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:25:53,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-25 03:25:53,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:25:53,378 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-08-25 03:25:53,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:25:53,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:53,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:53,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:53,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:53,382 INFO L85 PathProgramCache]: Analyzing trace with hash -121587775, now seen corresponding path program 1 times [2023-08-25 03:25:53,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:53,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441485189] [2023-08-25 03:25:53,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:53,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:53,525 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 03:25:53,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:53,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441485189] [2023-08-25 03:25:53,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441485189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:25:53,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:25:53,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:25:53,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18745470] [2023-08-25 03:25:53,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:25:53,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:25:53,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:53,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:25:53,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:25:53,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 152 [2023-08-25 03:25:53,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 03:25:53,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:53,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 152 [2023-08-25 03:25:53,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:53,610 INFO L124 PetriNetUnfolderBase]: 61/273 cut-off events. [2023-08-25 03:25:53,611 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:25:53,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 273 events. 61/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1165 event pairs, 60 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 404. Up to 141 conditions per place. [2023-08-25 03:25:53,614 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 19 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-08-25 03:25:53,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 151 flow [2023-08-25 03:25:53,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:25:53,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:25:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-25 03:25:53,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6535087719298246 [2023-08-25 03:25:53,625 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-25 03:25:53,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-25 03:25:53,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:53,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-25 03:25:53,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 03:25:53,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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 03:25:53,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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 03:25:53,635 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 107 flow. Second operand 3 states and 298 transitions. [2023-08-25 03:25:53,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 151 flow [2023-08-25 03:25:53,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:25:53,648 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 118 flow [2023-08-25 03:25:53,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2023-08-25 03:25:53,652 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2023-08-25 03:25:53,652 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 118 flow [2023-08-25 03:25:53,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 03:25:53,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:53,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:53,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:25:53,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:53,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash 464584451, now seen corresponding path program 1 times [2023-08-25 03:25:53,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:53,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573539333] [2023-08-25 03:25:53,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:53,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:25:53,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:53,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573539333] [2023-08-25 03:25:53,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573539333] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:25:53,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315817323] [2023-08-25 03:25:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:53,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:25:53,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:25:53,744 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) [2023-08-25 03:25:53,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 03:25:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:53,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 03:25:53,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:25:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:25:53,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:25:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:25:53,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315817323] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:25:53,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:25:53,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-25 03:25:53,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275657801] [2023-08-25 03:25:53,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:25:53,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:25:53,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:53,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:25:53,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:25:53,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 152 [2023-08-25 03:25:53,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 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 03:25:53,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:53,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 152 [2023-08-25 03:25:53,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:54,016 INFO L124 PetriNetUnfolderBase]: 61/276 cut-off events. [2023-08-25 03:25:54,017 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:25:54,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 276 events. 61/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1149 event pairs, 60 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 423. Up to 141 conditions per place. [2023-08-25 03:25:54,021 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 19 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-08-25 03:25:54,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 178 flow [2023-08-25 03:25:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:25:54,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:25:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 579 transitions. [2023-08-25 03:25:54,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6348684210526315 [2023-08-25 03:25:54,027 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 579 transitions. [2023-08-25 03:25:54,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 579 transitions. [2023-08-25 03:25:54,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:54,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 579 transitions. [2023-08-25 03:25:54,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 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 03:25:54,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:54,033 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:54,034 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 118 flow. Second operand 6 states and 579 transitions. [2023-08-25 03:25:54,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 178 flow [2023-08-25 03:25:54,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 174 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 03:25:54,039 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 150 flow [2023-08-25 03:25:54,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2023-08-25 03:25:54,044 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2023-08-25 03:25:54,045 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 150 flow [2023-08-25 03:25:54,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 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 03:25:54,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:54,047 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:54,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 03:25:54,247 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 [2023-08-25 03:25:54,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:54,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1446606913, now seen corresponding path program 2 times [2023-08-25 03:25:54,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:54,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321303284] [2023-08-25 03:25:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:54,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:54,627 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 03:25:54,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:54,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321303284] [2023-08-25 03:25:54,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321303284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:25:54,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:25:54,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:25:54,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331555705] [2023-08-25 03:25:54,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:25:54,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:25:54,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:54,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:25:54,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:25:54,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 152 [2023-08-25 03:25:54,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 150 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) [2023-08-25 03:25:54,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:54,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 152 [2023-08-25 03:25:54,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:54,890 INFO L124 PetriNetUnfolderBase]: 481/1030 cut-off events. [2023-08-25 03:25:54,890 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 03:25:54,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2071 conditions, 1030 events. 481/1030 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4393 event pairs, 384 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 2038. Up to 817 conditions per place. [2023-08-25 03:25:54,895 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 113 selfloop transitions, 5 changer transitions 0/119 dead transitions. [2023-08-25 03:25:54,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 119 transitions, 512 flow [2023-08-25 03:25:54,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:25:54,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:25:54,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2023-08-25 03:25:54,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49451754385964913 [2023-08-25 03:25:54,897 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 451 transitions. [2023-08-25 03:25:54,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 451 transitions. [2023-08-25 03:25:54,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:54,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 451 transitions. [2023-08-25 03:25:54,898 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) [2023-08-25 03:25:54,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:54,900 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:54,900 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 150 flow. Second operand 6 states and 451 transitions. [2023-08-25 03:25:54,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 119 transitions, 512 flow [2023-08-25 03:25:54,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 119 transitions, 498 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 03:25:54,903 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 144 flow [2023-08-25 03:25:54,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2023-08-25 03:25:54,904 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 12 predicate places. [2023-08-25 03:25:54,904 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 144 flow [2023-08-25 03:25:54,904 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) [2023-08-25 03:25:54,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:54,904 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:54,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:25:54,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:54,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:54,905 INFO L85 PathProgramCache]: Analyzing trace with hash 944486463, now seen corresponding path program 1 times [2023-08-25 03:25:54,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:54,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582665210] [2023-08-25 03:25:54,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:54,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 03:25:55,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:55,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582665210] [2023-08-25 03:25:55,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582665210] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:25:55,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:25:55,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:25:55,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777861232] [2023-08-25 03:25:55,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:25:55,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:25:55,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:55,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:25:55,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:25:55,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 152 [2023-08-25 03:25:55,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 144 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) [2023-08-25 03:25:55,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:55,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 152 [2023-08-25 03:25:55,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:55,585 INFO L124 PetriNetUnfolderBase]: 618/1321 cut-off events. [2023-08-25 03:25:55,585 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-08-25 03:25:55,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 1321 events. 618/1321 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6474 event pairs, 237 based on Foata normal form. 0/1182 useless extension candidates. Maximal degree in co-relation 2707. Up to 653 conditions per place. [2023-08-25 03:25:55,590 INFO L140 encePairwiseOnDemand]: 130/152 looper letters, 194 selfloop transitions, 42 changer transitions 0/237 dead transitions. [2023-08-25 03:25:55,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 237 transitions, 1020 flow [2023-08-25 03:25:55,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:25:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:25:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 570 transitions. [2023-08-25 03:25:55,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2023-08-25 03:25:55,592 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 570 transitions. [2023-08-25 03:25:55,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 570 transitions. [2023-08-25 03:25:55,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:55,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 570 transitions. [2023-08-25 03:25:55,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 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 03:25:55,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:55,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:55,596 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 144 flow. Second operand 6 states and 570 transitions. [2023-08-25 03:25:55,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 237 transitions, 1020 flow [2023-08-25 03:25:55,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 237 transitions, 970 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 03:25:55,599 INFO L231 Difference]: Finished difference. Result has 72 places, 101 transitions, 450 flow [2023-08-25 03:25:55,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=72, PETRI_TRANSITIONS=101} [2023-08-25 03:25:55,600 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2023-08-25 03:25:55,600 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 101 transitions, 450 flow [2023-08-25 03:25:55,601 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) [2023-08-25 03:25:55,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:55,601 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:55,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:25:55,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:55,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:55,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1171073865, now seen corresponding path program 1 times [2023-08-25 03:25:55,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:55,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971623068] [2023-08-25 03:25:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:55,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:25:55,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:55,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971623068] [2023-08-25 03:25:55,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971623068] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:25:55,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913713973] [2023-08-25 03:25:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:55,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:25:55,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:25:55,684 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) [2023-08-25 03:25:55,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 03:25:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:55,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 03:25:55,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:25:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:25:55,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:25:55,822 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:25:55,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913713973] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:25:55,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:25:55,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-25 03:25:55,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301840835] [2023-08-25 03:25:55,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:25:55,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 03:25:55,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:55,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 03:25:55,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-25 03:25:55,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 152 [2023-08-25 03:25:55,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 101 transitions, 450 flow. Second operand has 13 states, 13 states have (on average 93.38461538461539) internal successors, (1214), 13 states have internal predecessors, (1214), 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 03:25:55,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:55,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 152 [2023-08-25 03:25:55,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:55,918 INFO L124 PetriNetUnfolderBase]: 181/619 cut-off events. [2023-08-25 03:25:55,918 INFO L125 PetriNetUnfolderBase]: For 277/302 co-relation queries the response was YES. [2023-08-25 03:25:55,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 619 events. 181/619 cut-off events. For 277/302 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3468 event pairs, 88 based on Foata normal form. 8/597 useless extension candidates. Maximal degree in co-relation 1484. Up to 265 conditions per place. [2023-08-25 03:25:55,921 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 35 selfloop transitions, 11 changer transitions 0/107 dead transitions. [2023-08-25 03:25:55,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 107 transitions, 578 flow [2023-08-25 03:25:55,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 03:25:55,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 03:25:55,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1140 transitions. [2023-08-25 03:25:55,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2023-08-25 03:25:55,923 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1140 transitions. [2023-08-25 03:25:55,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1140 transitions. [2023-08-25 03:25:55,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:55,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1140 transitions. [2023-08-25 03:25:55,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 95.0) internal successors, (1140), 12 states have internal predecessors, (1140), 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 03:25:55,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 152.0) internal successors, (1976), 13 states have internal predecessors, (1976), 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 03:25:55,929 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 152.0) internal successors, (1976), 13 states have internal predecessors, (1976), 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 03:25:55,929 INFO L175 Difference]: Start difference. First operand has 72 places, 101 transitions, 450 flow. Second operand 12 states and 1140 transitions. [2023-08-25 03:25:55,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 107 transitions, 578 flow [2023-08-25 03:25:55,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 107 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:25:55,935 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 534 flow [2023-08-25 03:25:55,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=534, PETRI_PLACES=89, PETRI_TRANSITIONS=107} [2023-08-25 03:25:55,937 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 34 predicate places. [2023-08-25 03:25:55,938 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 534 flow [2023-08-25 03:25:55,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 93.38461538461539) internal successors, (1214), 13 states have internal predecessors, (1214), 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 03:25:55,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:55,938 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:55,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 03:25:56,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:25:56,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:56,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1529035767, now seen corresponding path program 2 times [2023-08-25 03:25:56,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:56,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093912807] [2023-08-25 03:25:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:56,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:25:56,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:56,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093912807] [2023-08-25 03:25:56,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093912807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:25:56,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:25:56,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:25:56,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089746274] [2023-08-25 03:25:56,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:25:56,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:25:56,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:56,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:25:56,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:25:56,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 152 [2023-08-25 03:25:56,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 107 transitions, 534 flow. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 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 03:25:56,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:56,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 152 [2023-08-25 03:25:56,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:56,655 INFO L124 PetriNetUnfolderBase]: 603/1296 cut-off events. [2023-08-25 03:25:56,655 INFO L125 PetriNetUnfolderBase]: For 674/674 co-relation queries the response was YES. [2023-08-25 03:25:56,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3755 conditions, 1296 events. 603/1296 cut-off events. For 674/674 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6141 event pairs, 354 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 3675. Up to 1133 conditions per place. [2023-08-25 03:25:56,661 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 160 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2023-08-25 03:25:56,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 166 transitions, 1110 flow [2023-08-25 03:25:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:25:56,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:25:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 428 transitions. [2023-08-25 03:25:56,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4692982456140351 [2023-08-25 03:25:56,662 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 428 transitions. [2023-08-25 03:25:56,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 428 transitions. [2023-08-25 03:25:56,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:56,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 428 transitions. [2023-08-25 03:25:56,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 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 03:25:56,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:56,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:56,665 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 534 flow. Second operand 6 states and 428 transitions. [2023-08-25 03:25:56,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 166 transitions, 1110 flow [2023-08-25 03:25:56,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 166 transitions, 1062 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-25 03:25:56,669 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 494 flow [2023-08-25 03:25:56,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2023-08-25 03:25:56,670 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 33 predicate places. [2023-08-25 03:25:56,670 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 494 flow [2023-08-25 03:25:56,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 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 03:25:56,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:56,670 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:56,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:25:56,670 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:56,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:56,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1485621370, now seen corresponding path program 1 times [2023-08-25 03:25:56,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:56,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915398697] [2023-08-25 03:25:56,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:56,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:56,842 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:25:56,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:56,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915398697] [2023-08-25 03:25:56,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915398697] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:25:56,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:25:56,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:25:56,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496301367] [2023-08-25 03:25:56,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:25:56,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:25:56,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:25:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:25:56,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2023-08-25 03:25:56,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 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 03:25:56,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:56,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2023-08-25 03:25:56,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:57,244 INFO L124 PetriNetUnfolderBase]: 684/1471 cut-off events. [2023-08-25 03:25:57,245 INFO L125 PetriNetUnfolderBase]: For 819/819 co-relation queries the response was YES. [2023-08-25 03:25:57,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4375 conditions, 1471 events. 684/1471 cut-off events. For 819/819 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7296 event pairs, 312 based on Foata normal form. 38/1508 useless extension candidates. Maximal degree in co-relation 4319. Up to 1088 conditions per place. [2023-08-25 03:25:57,251 INFO L140 encePairwiseOnDemand]: 136/152 looper letters, 196 selfloop transitions, 46 changer transitions 6/249 dead transitions. [2023-08-25 03:25:57,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 249 transitions, 1502 flow [2023-08-25 03:25:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:25:57,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:25:57,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2023-08-25 03:25:57,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5548245614035088 [2023-08-25 03:25:57,253 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2023-08-25 03:25:57,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2023-08-25 03:25:57,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:57,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2023-08-25 03:25:57,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 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 03:25:57,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:57,257 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:57,257 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 494 flow. Second operand 6 states and 506 transitions. [2023-08-25 03:25:57,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 249 transitions, 1502 flow [2023-08-25 03:25:57,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 249 transitions, 1452 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 03:25:57,262 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 907 flow [2023-08-25 03:25:57,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=907, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2023-08-25 03:25:57,263 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 37 predicate places. [2023-08-25 03:25:57,263 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 907 flow [2023-08-25 03:25:57,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 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 03:25:57,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:57,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:57,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:25:57,263 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:57,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:57,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1541233457, now seen corresponding path program 1 times [2023-08-25 03:25:57,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:57,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646399404] [2023-08-25 03:25:57,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:57,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:25:57,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:57,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646399404] [2023-08-25 03:25:57,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646399404] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:25:57,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:25:57,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:25:57,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010259768] [2023-08-25 03:25:57,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:25:57,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:25:57,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:57,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:25:57,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:25:57,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 152 [2023-08-25 03:25:57,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 907 flow. Second operand has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 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 03:25:57,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:57,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 152 [2023-08-25 03:25:57,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:57,790 INFO L124 PetriNetUnfolderBase]: 782/1690 cut-off events. [2023-08-25 03:25:57,790 INFO L125 PetriNetUnfolderBase]: For 2151/2151 co-relation queries the response was YES. [2023-08-25 03:25:57,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5908 conditions, 1690 events. 782/1690 cut-off events. For 2151/2151 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8763 event pairs, 355 based on Foata normal form. 25/1714 useless extension candidates. Maximal degree in co-relation 5848. Up to 1271 conditions per place. [2023-08-25 03:25:57,799 INFO L140 encePairwiseOnDemand]: 135/152 looper letters, 164 selfloop transitions, 58 changer transitions 28/251 dead transitions. [2023-08-25 03:25:57,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 251 transitions, 1919 flow [2023-08-25 03:25:57,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:25:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:25:57,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions. [2023-08-25 03:25:57,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4956140350877193 [2023-08-25 03:25:57,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 452 transitions. [2023-08-25 03:25:57,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 452 transitions. [2023-08-25 03:25:57,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:57,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 452 transitions. [2023-08-25 03:25:57,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.33333333333333) internal successors, (452), 6 states have internal predecessors, (452), 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 03:25:57,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:57,824 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:25:57,824 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 907 flow. Second operand 6 states and 452 transitions. [2023-08-25 03:25:57,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 251 transitions, 1919 flow [2023-08-25 03:25:57,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 251 transitions, 1885 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-08-25 03:25:57,832 INFO L231 Difference]: Finished difference. Result has 101 places, 181 transitions, 1302 flow [2023-08-25 03:25:57,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1302, PETRI_PLACES=101, PETRI_TRANSITIONS=181} [2023-08-25 03:25:57,833 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 46 predicate places. [2023-08-25 03:25:57,833 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 181 transitions, 1302 flow [2023-08-25 03:25:57,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 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 03:25:57,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:25:57,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:25:57,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 03:25:57,834 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:25:57,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:25:57,834 INFO L85 PathProgramCache]: Analyzing trace with hash 2079724028, now seen corresponding path program 1 times [2023-08-25 03:25:57,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:25:57,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810088101] [2023-08-25 03:25:57,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:25:57,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:25:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:25:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:25:57,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:25:57,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810088101] [2023-08-25 03:25:57,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810088101] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:25:57,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:25:57,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:25:57,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793603842] [2023-08-25 03:25:57,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:25:57,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:25:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:25:57,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:25:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:25:57,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 152 [2023-08-25 03:25:57,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 181 transitions, 1302 flow. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 03:25:57,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:25:57,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 152 [2023-08-25 03:25:57,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:25:57,965 INFO L124 PetriNetUnfolderBase]: 32/178 cut-off events. [2023-08-25 03:25:57,966 INFO L125 PetriNetUnfolderBase]: For 301/307 co-relation queries the response was YES. [2023-08-25 03:25:57,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 178 events. 32/178 cut-off events. For 301/307 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 510 event pairs, 17 based on Foata normal form. 16/191 useless extension candidates. Maximal degree in co-relation 493. Up to 70 conditions per place. [2023-08-25 03:25:57,966 INFO L140 encePairwiseOnDemand]: 148/152 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2023-08-25 03:25:57,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 61 transitions, 372 flow [2023-08-25 03:25:57,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:25:57,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:25:57,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-08-25 03:25:57,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6600877192982456 [2023-08-25 03:25:57,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-08-25 03:25:57,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-08-25 03:25:57,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:25:57,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-08-25 03:25:57,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 03:25:57,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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 03:25:57,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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 03:25:57,969 INFO L175 Difference]: Start difference. First operand has 101 places, 181 transitions, 1302 flow. Second operand 3 states and 301 transitions. [2023-08-25 03:25:57,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 61 transitions, 372 flow [2023-08-25 03:25:57,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 242 flow, removed 27 selfloop flow, removed 28 redundant places. [2023-08-25 03:25:57,971 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-08-25 03:25:57,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2023-08-25 03:25:57,972 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2023-08-25 03:25:57,972 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-08-25 03:25:57,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-25 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-25 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-25 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-25 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-25 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-25 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-25 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-25 03:25:57,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-25 03:25:57,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 03:25:57,975 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-08-25 03:25:57,978 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:25:57,978 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:25:57,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:25:57 BasicIcfg [2023-08-25 03:25:57,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:25:57,980 INFO L158 Benchmark]: Toolchain (without parser) took 6796.66ms. Allocated memory was 316.7MB in the beginning and 471.9MB in the end (delta: 155.2MB). Free memory was 273.5MB in the beginning and 356.2MB in the end (delta: -82.7MB). Peak memory consumption was 73.1MB. Max. memory is 16.0GB. [2023-08-25 03:25:57,980 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 316.7MB. Free memory is still 293.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:25:57,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.23ms. Allocated memory is still 316.7MB. Free memory was 273.5MB in the beginning and 254.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:25:57,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.06ms. Allocated memory is still 316.7MB. Free memory was 254.2MB in the beginning and 251.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:25:57,981 INFO L158 Benchmark]: Boogie Preprocessor took 39.45ms. Allocated memory is still 316.7MB. Free memory was 251.9MB in the beginning and 249.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:25:57,981 INFO L158 Benchmark]: RCFGBuilder took 462.48ms. Allocated memory is still 316.7MB. Free memory was 249.8MB in the beginning and 280.0MB in the end (delta: -30.2MB). Peak memory consumption was 6.9MB. Max. memory is 16.0GB. [2023-08-25 03:25:57,981 INFO L158 Benchmark]: TraceAbstraction took 5835.65ms. Allocated memory was 316.7MB in the beginning and 471.9MB in the end (delta: 155.2MB). Free memory was 279.2MB in the beginning and 356.2MB in the end (delta: -77.0MB). Peak memory consumption was 76.7MB. Max. memory is 16.0GB. [2023-08-25 03:25:57,982 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 316.7MB. Free memory is still 293.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 398.23ms. Allocated memory is still 316.7MB. Free memory was 273.5MB in the beginning and 254.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.06ms. Allocated memory is still 316.7MB. Free memory was 254.2MB in the beginning and 251.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.45ms. Allocated memory is still 316.7MB. Free memory was 251.9MB in the beginning and 249.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 462.48ms. Allocated memory is still 316.7MB. Free memory was 249.8MB in the beginning and 280.0MB in the end (delta: -30.2MB). Peak memory consumption was 6.9MB. Max. memory is 16.0GB. * TraceAbstraction took 5835.65ms. Allocated memory was 316.7MB in the beginning and 471.9MB in the end (delta: 155.2MB). Free memory was 279.2MB in the beginning and 356.2MB in the end (delta: -77.0MB). Peak memory consumption was 76.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 103 PlacesBefore, 55 PlacesAfterwards, 101 TransitionsBefore, 52 TransitionsAfterwards, 2550 CoEnabledTransitionPairs, 4 FixpointIterations, 19 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 50 TotalNumberOfCompositions, 11251 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2271, independent: 1842, independent conditional: 0, independent unconditional: 1842, dependent: 429, dependent conditional: 0, dependent unconditional: 429, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1047, independent: 944, independent conditional: 0, independent unconditional: 944, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2271, independent: 898, independent conditional: 0, independent unconditional: 898, dependent: 326, dependent conditional: 0, dependent unconditional: 326, unknown: 1047, unknown conditional: 0, unknown unconditional: 1047] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 135, Positive conditional cache size: 0, Positive unconditional cache size: 135, Negative cache size: 72, Negative conditional cache size: 0, Negative unconditional cache size: 72, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: 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, 128 locations, 9 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: 5.7s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 230 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 230 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1911 IncrementalHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 221 mSolverCounterUnsat, 125 mSDtfsCounter, 1911 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1302occurred in iteration=8, InterpolantAutomatonStates: 54, 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, 1.5s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 942 SizeOfPredicates, 0 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 240/273 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 03:25:58,005 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...