/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:22:00,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:22:00,263 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 19:22:00,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:22:00,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:22:00,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:22:00,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:22:00,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:22:00,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:22:00,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:22:00,296 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:22:00,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:22:00,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:22:00,297 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:22:00,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:22:00,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:22:00,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:22:00,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:22:00,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:22:00,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:22:00,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:22:00,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:22:00,299 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:22:00,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:22:00,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:22:00,300 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:22:00,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:22:00,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:22:00,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:22:00,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:22:00,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:22:00,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:22:00,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:22:00,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:22:00,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:22:00,302 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:22:00,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:22:00,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:22:00,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:22:00,573 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:22:00,573 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:22:00,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2023-08-25 19:22:01,669 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:22:01,842 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:22:01,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2023-08-25 19:22:01,857 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/099ec1daa/b15c77643fa649fba5529edcada1f3a7/FLAG6fbc3bb9e [2023-08-25 19:22:01,879 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/099ec1daa/b15c77643fa649fba5529edcada1f3a7 [2023-08-25 19:22:01,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:22:01,882 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:22:01,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:22:01,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:22:01,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:22:01,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:22:01" (1/1) ... [2023-08-25 19:22:01,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc1ad5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:01, skipping insertion in model container [2023-08-25 19:22:01,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:22:01" (1/1) ... [2023-08-25 19:22:01,901 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:22:02,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:22:02,056 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:22:02,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:22:02,104 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:22:02,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02 WrapperNode [2023-08-25 19:22:02,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:22:02,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:22:02,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:22:02,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:22:02,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,150 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2023-08-25 19:22:02,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:22:02,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:22:02,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:22:02,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:22:02,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:22:02,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:22:02,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:22:02,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:22:02,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2023-08-25 19:22:02,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:22:02,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:22:02,206 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 19:22:02,221 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 19:22:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:22:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:22:02,244 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:22:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:22:02,244 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:22:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 19:22:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 19:22:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:22:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:22:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:22:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:22:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:22:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:22:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:22:02,246 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 19:22:02,307 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:22:02,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:22:02,582 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:22:02,587 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:22:02,587 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 19:22:02,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:22:02 BoogieIcfgContainer [2023-08-25 19:22:02,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:22:02,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:22:02,590 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:22:02,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:22:02,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:22:01" (1/3) ... [2023-08-25 19:22:02,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8b2c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:22:02, skipping insertion in model container [2023-08-25 19:22:02,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (2/3) ... [2023-08-25 19:22:02,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8b2c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:22:02, skipping insertion in model container [2023-08-25 19:22:02,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:22:02" (3/3) ... [2023-08-25 19:22:02,597 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2023-08-25 19:22:02,607 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:22:02,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-25 19:22:02,607 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:22:02,683 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 19:22:02,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 194 transitions, 412 flow [2023-08-25 19:22:02,800 INFO L124 PetriNetUnfolderBase]: 6/191 cut-off events. [2023-08-25 19:22:02,801 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:22:02,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 191 events. 6/191 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 268 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-08-25 19:22:02,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 194 transitions, 412 flow [2023-08-25 19:22:02,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 180 transitions, 378 flow [2023-08-25 19:22:02,817 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:22:02,826 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 180 transitions, 378 flow [2023-08-25 19:22:02,828 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 180 transitions, 378 flow [2023-08-25 19:22:02,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 180 transitions, 378 flow [2023-08-25 19:22:02,867 INFO L124 PetriNetUnfolderBase]: 6/180 cut-off events. [2023-08-25 19:22:02,868 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:22:02,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 180 events. 6/180 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-08-25 19:22:02,872 INFO L119 LiptonReduction]: Number of co-enabled transitions 6072 [2023-08-25 19:22:06,302 INFO L134 LiptonReduction]: Checked pairs total: 21243 [2023-08-25 19:22:06,303 INFO L136 LiptonReduction]: Total number of compositions: 167 [2023-08-25 19:22:06,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:22:06,316 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;@3ee509a5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:22:06,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-08-25 19:22:06,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:22:06,317 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:22:06,317 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:22:06,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:06,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:22:06,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:06,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:06,321 INFO L85 PathProgramCache]: Analyzing trace with hash 677, now seen corresponding path program 1 times [2023-08-25 19:22:06,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:06,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036901716] [2023-08-25 19:22:06,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:06,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:06,387 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 19:22:06,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:06,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036901716] [2023-08-25 19:22:06,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036901716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:06,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:06,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:22:06,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445617210] [2023-08-25 19:22:06,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:06,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:22:06,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:06,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:22:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:22:06,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 361 [2023-08-25 19:22:06,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 134 flow. Second operand has 2 states, 2 states have (on average 186.5) internal successors, (373), 2 states have internal predecessors, (373), 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 19:22:06,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:06,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 361 [2023-08-25 19:22:06,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:06,513 INFO L124 PetriNetUnfolderBase]: 465/768 cut-off events. [2023-08-25 19:22:06,513 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-08-25 19:22:06,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 768 events. 465/768 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4025 event pairs, 333 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 1252. Up to 677 conditions per place. [2023-08-25 19:22:06,519 INFO L140 encePairwiseOnDemand]: 350/361 looper letters, 25 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-08-25 19:22:06,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 162 flow [2023-08-25 19:22:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:22:06,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:22:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 408 transitions. [2023-08-25 19:22:06,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5650969529085873 [2023-08-25 19:22:06,530 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 408 transitions. [2023-08-25 19:22:06,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 408 transitions. [2023-08-25 19:22:06,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:06,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 408 transitions. [2023-08-25 19:22:06,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 204.0) internal successors, (408), 2 states have internal predecessors, (408), 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 19:22:06,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 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 19:22:06,539 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 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 19:22:06,540 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 134 flow. Second operand 2 states and 408 transitions. [2023-08-25 19:22:06,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 162 flow [2023-08-25 19:22:06,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 47 transitions, 150 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 19:22:06,544 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 100 flow [2023-08-25 19:22:06,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-08-25 19:22:06,548 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -16 predicate places. [2023-08-25 19:22:06,549 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 100 flow [2023-08-25 19:22:06,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 186.5) internal successors, (373), 2 states have internal predecessors, (373), 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 19:22:06,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:06,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 19:22:06,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:22:06,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:06,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:06,550 INFO L85 PathProgramCache]: Analyzing trace with hash 20732249, now seen corresponding path program 1 times [2023-08-25 19:22:06,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:06,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824526720] [2023-08-25 19:22:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:06,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:06,602 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 19:22:06,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:06,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824526720] [2023-08-25 19:22:06,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824526720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:06,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:06,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:22:06,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623728902] [2023-08-25 19:22:06,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:06,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:22:06,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:06,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:22:06,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:22:06,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 361 [2023-08-25 19:22:06,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 19:22:06,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:06,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 361 [2023-08-25 19:22:06,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:06,719 INFO L124 PetriNetUnfolderBase]: 937/1597 cut-off events. [2023-08-25 19:22:06,720 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-08-25 19:22:06,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2979 conditions, 1597 events. 937/1597 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9265 event pairs, 477 based on Foata normal form. 0/1370 useless extension candidates. Maximal degree in co-relation 2976. Up to 1316 conditions per place. [2023-08-25 19:22:06,728 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 38 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-25 19:22:06,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 56 transitions, 200 flow [2023-08-25 19:22:06,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:22:06,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:22:06,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2023-08-25 19:22:06,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290858725761773 [2023-08-25 19:22:06,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2023-08-25 19:22:06,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2023-08-25 19:22:06,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:06,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2023-08-25 19:22:06,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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 19:22:06,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:06,734 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:06,734 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 100 flow. Second operand 3 states and 573 transitions. [2023-08-25 19:22:06,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 56 transitions, 200 flow [2023-08-25 19:22:06,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 200 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:22:06,735 INFO L231 Difference]: Finished difference. Result has 50 places, 47 transitions, 110 flow [2023-08-25 19:22:06,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=50, PETRI_TRANSITIONS=47} [2023-08-25 19:22:06,736 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -15 predicate places. [2023-08-25 19:22:06,736 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 110 flow [2023-08-25 19:22:06,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 19:22:06,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:06,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 19:22:06,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:22:06,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:06,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:06,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1551131045, now seen corresponding path program 1 times [2023-08-25 19:22:06,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:06,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983134058] [2023-08-25 19:22:06,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:06,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:06,767 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 19:22:06,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:06,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983134058] [2023-08-25 19:22:06,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983134058] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:06,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:06,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:22:06,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889921770] [2023-08-25 19:22:06,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:06,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:22:06,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:06,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:22:06,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:22:06,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 361 [2023-08-25 19:22:06,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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 19:22:06,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:06,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 361 [2023-08-25 19:22:06,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:06,891 INFO L124 PetriNetUnfolderBase]: 1048/1657 cut-off events. [2023-08-25 19:22:06,891 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-25 19:22:06,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3224 conditions, 1657 events. 1048/1657 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9299 event pairs, 502 based on Foata normal form. 0/1437 useless extension candidates. Maximal degree in co-relation 3220. Up to 1485 conditions per place. [2023-08-25 19:22:06,900 INFO L140 encePairwiseOnDemand]: 356/361 looper letters, 38 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-08-25 19:22:06,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 55 transitions, 208 flow [2023-08-25 19:22:06,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:22:06,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:22:06,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2023-08-25 19:22:06,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5216989843028624 [2023-08-25 19:22:06,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2023-08-25 19:22:06,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2023-08-25 19:22:06,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:06,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2023-08-25 19:22:06,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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 19:22:06,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:06,905 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:06,905 INFO L175 Difference]: Start difference. First operand has 50 places, 47 transitions, 110 flow. Second operand 3 states and 565 transitions. [2023-08-25 19:22:06,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 55 transitions, 208 flow [2023-08-25 19:22:06,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 55 transitions, 208 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:22:06,907 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 118 flow [2023-08-25 19:22:06,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-25 19:22:06,907 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -15 predicate places. [2023-08-25 19:22:06,907 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 118 flow [2023-08-25 19:22:06,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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 19:22:06,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:06,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:22:06,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:22:06,908 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:06,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:06,909 INFO L85 PathProgramCache]: Analyzing trace with hash -840415669, now seen corresponding path program 1 times [2023-08-25 19:22:06,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:06,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057979581] [2023-08-25 19:22:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:06,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:06,941 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 19:22:06,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:06,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057979581] [2023-08-25 19:22:06,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057979581] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:06,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:06,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:22:06,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210875477] [2023-08-25 19:22:06,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:06,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:22:06,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:06,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:22:06,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:22:06,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 361 [2023-08-25 19:22:06,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 19:22:06,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:06,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 361 [2023-08-25 19:22:06,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:07,044 INFO L124 PetriNetUnfolderBase]: 575/930 cut-off events. [2023-08-25 19:22:07,045 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 19:22:07,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 930 events. 575/930 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 4869 event pairs, 313 based on Foata normal form. 0/743 useless extension candidates. Maximal degree in co-relation 1822. Up to 627 conditions per place. [2023-08-25 19:22:07,050 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 35 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2023-08-25 19:22:07,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 220 flow [2023-08-25 19:22:07,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:22:07,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:22:07,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2023-08-25 19:22:07,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290858725761773 [2023-08-25 19:22:07,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2023-08-25 19:22:07,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2023-08-25 19:22:07,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:07,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2023-08-25 19:22:07,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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 19:22:07,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:07,056 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:07,056 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 118 flow. Second operand 3 states and 573 transitions. [2023-08-25 19:22:07,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 220 flow [2023-08-25 19:22:07,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:22:07,057 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 122 flow [2023-08-25 19:22:07,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2023-08-25 19:22:07,058 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -14 predicate places. [2023-08-25 19:22:07,058 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 122 flow [2023-08-25 19:22:07,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 19:22:07,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:07,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:22:07,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:22:07,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:07,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:07,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1351354129, now seen corresponding path program 1 times [2023-08-25 19:22:07,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:07,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112006896] [2023-08-25 19:22:07,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:07,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:07,086 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 19:22:07,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:07,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112006896] [2023-08-25 19:22:07,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112006896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:07,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:07,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:22:07,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668102242] [2023-08-25 19:22:07,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:07,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:22:07,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:07,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:22:07,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:22:07,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 361 [2023-08-25 19:22:07,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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 19:22:07,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:07,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 361 [2023-08-25 19:22:07,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:07,218 INFO L124 PetriNetUnfolderBase]: 1173/1738 cut-off events. [2023-08-25 19:22:07,218 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2023-08-25 19:22:07,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3808 conditions, 1738 events. 1173/1738 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8262 event pairs, 274 based on Foata normal form. 0/1525 useless extension candidates. Maximal degree in co-relation 3802. Up to 1639 conditions per place. [2023-08-25 19:22:07,226 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 38 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2023-08-25 19:22:07,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 224 flow [2023-08-25 19:22:07,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:22:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:22:07,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2023-08-25 19:22:07,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5143120960295475 [2023-08-25 19:22:07,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 557 transitions. [2023-08-25 19:22:07,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 557 transitions. [2023-08-25 19:22:07,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:07,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 557 transitions. [2023-08-25 19:22:07,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 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 19:22:07,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:07,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:07,240 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 122 flow. Second operand 3 states and 557 transitions. [2023-08-25 19:22:07,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 224 flow [2023-08-25 19:22:07,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 52 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:22:07,242 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 122 flow [2023-08-25 19:22:07,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-08-25 19:22:07,244 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -17 predicate places. [2023-08-25 19:22:07,244 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 122 flow [2023-08-25 19:22:07,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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 19:22:07,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:07,245 INFO L208 CegarLoopForPetriNet]: trace histogram [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 19:22:07,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:22:07,245 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:07,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:07,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2135475582, now seen corresponding path program 1 times [2023-08-25 19:22:07,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:07,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842592731] [2023-08-25 19:22:07,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:07,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:07,363 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 19:22:07,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:07,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842592731] [2023-08-25 19:22:07,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842592731] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:07,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:07,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:22:07,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540704128] [2023-08-25 19:22:07,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:07,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:22:07,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:07,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:22:07,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:22:07,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 361 [2023-08-25 19:22:07,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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 19:22:07,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:07,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 361 [2023-08-25 19:22:07,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:07,470 INFO L124 PetriNetUnfolderBase]: 836/1330 cut-off events. [2023-08-25 19:22:07,470 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-08-25 19:22:07,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 1330 events. 836/1330 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7312 event pairs, 444 based on Foata normal form. 1/1098 useless extension candidates. Maximal degree in co-relation 2666. Up to 880 conditions per place. [2023-08-25 19:22:07,475 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 36 selfloop transitions, 2 changer transitions 4/60 dead transitions. [2023-08-25 19:22:07,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 60 transitions, 244 flow [2023-08-25 19:22:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:22:07,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:22:07,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 592 transitions. [2023-08-25 19:22:07,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5466297322253001 [2023-08-25 19:22:07,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 592 transitions. [2023-08-25 19:22:07,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 592 transitions. [2023-08-25 19:22:07,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:07,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 592 transitions. [2023-08-25 19:22:07,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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 19:22:07,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:07,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:07,481 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 122 flow. Second operand 3 states and 592 transitions. [2023-08-25 19:22:07,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 60 transitions, 244 flow [2023-08-25 19:22:07,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:22:07,483 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 130 flow [2023-08-25 19:22:07,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2023-08-25 19:22:07,486 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -14 predicate places. [2023-08-25 19:22:07,488 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 130 flow [2023-08-25 19:22:07,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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 19:22:07,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:07,491 INFO L208 CegarLoopForPetriNet]: trace histogram [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 19:22:07,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:22:07,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:07,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:07,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1272490106, now seen corresponding path program 1 times [2023-08-25 19:22:07,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:07,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681901545] [2023-08-25 19:22:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:07,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:07,591 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 19:22:07,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:07,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681901545] [2023-08-25 19:22:07,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681901545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:07,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:07,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:22:07,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119513167] [2023-08-25 19:22:07,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:07,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:22:07,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:07,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:22:07,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:22:07,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 361 [2023-08-25 19:22:07,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 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 19:22:07,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:07,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 361 [2023-08-25 19:22:07,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:07,761 INFO L124 PetriNetUnfolderBase]: 1201/1944 cut-off events. [2023-08-25 19:22:07,761 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2023-08-25 19:22:07,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4076 conditions, 1944 events. 1201/1944 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 11918 event pairs, 652 based on Foata normal form. 1/1654 useless extension candidates. Maximal degree in co-relation 4068. Up to 1173 conditions per place. [2023-08-25 19:22:07,767 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 35 selfloop transitions, 2 changer transitions 7/62 dead transitions. [2023-08-25 19:22:07,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 264 flow [2023-08-25 19:22:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:22:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:22:07,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2023-08-25 19:22:07,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5484764542936288 [2023-08-25 19:22:07,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 594 transitions. [2023-08-25 19:22:07,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 594 transitions. [2023-08-25 19:22:07,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:07,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 594 transitions. [2023-08-25 19:22:07,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 19:22:07,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:07,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 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 19:22:07,773 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 130 flow. Second operand 3 states and 594 transitions. [2023-08-25 19:22:07,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 62 transitions, 264 flow [2023-08-25 19:22:07,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 62 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:22:07,774 INFO L231 Difference]: Finished difference. Result has 52 places, 43 transitions, 134 flow [2023-08-25 19:22:07,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=52, PETRI_TRANSITIONS=43} [2023-08-25 19:22:07,775 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -13 predicate places. [2023-08-25 19:22:07,775 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 43 transitions, 134 flow [2023-08-25 19:22:07,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 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 19:22:07,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:07,777 INFO L208 CegarLoopForPetriNet]: trace histogram [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 19:22:07,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:22:07,777 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:07,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:07,779 INFO L85 PathProgramCache]: Analyzing trace with hash 972717156, now seen corresponding path program 1 times [2023-08-25 19:22:07,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:07,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371887] [2023-08-25 19:22:07,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:07,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:08,016 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 19:22:08,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:08,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371887] [2023-08-25 19:22:08,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371887] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:08,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:08,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:22:08,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494404494] [2023-08-25 19:22:08,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:08,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:22:08,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:08,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:22:08,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:22:08,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 361 [2023-08-25 19:22:08,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 43 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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 19:22:08,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:08,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 361 [2023-08-25 19:22:08,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:08,246 INFO L124 PetriNetUnfolderBase]: 1289/2162 cut-off events. [2023-08-25 19:22:08,246 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2023-08-25 19:22:08,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4524 conditions, 2162 events. 1289/2162 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 13914 event pairs, 553 based on Foata normal form. 1/1879 useless extension candidates. Maximal degree in co-relation 4515. Up to 1041 conditions per place. [2023-08-25 19:22:08,252 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 45 selfloop transitions, 2 changer transitions 22/87 dead transitions. [2023-08-25 19:22:08,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 87 transitions, 376 flow [2023-08-25 19:22:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:22:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:22:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 905 transitions. [2023-08-25 19:22:08,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5013850415512465 [2023-08-25 19:22:08,254 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 905 transitions. [2023-08-25 19:22:08,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 905 transitions. [2023-08-25 19:22:08,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:08,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 905 transitions. [2023-08-25 19:22:08,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 19:22:08,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 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 19:22:08,259 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 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 19:22:08,260 INFO L175 Difference]: Start difference. First operand has 52 places, 43 transitions, 134 flow. Second operand 5 states and 905 transitions. [2023-08-25 19:22:08,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 87 transitions, 376 flow [2023-08-25 19:22:08,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 87 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:22:08,263 INFO L231 Difference]: Finished difference. Result has 56 places, 43 transitions, 139 flow [2023-08-25 19:22:08,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2023-08-25 19:22:08,264 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -9 predicate places. [2023-08-25 19:22:08,264 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 139 flow [2023-08-25 19:22:08,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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 19:22:08,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:08,265 INFO L208 CegarLoopForPetriNet]: trace histogram [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 19:22:08,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:22:08,265 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:08,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:08,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1145970244, now seen corresponding path program 2 times [2023-08-25 19:22:08,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:08,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321042440] [2023-08-25 19:22:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:08,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:22:08,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:08,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321042440] [2023-08-25 19:22:08,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321042440] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:08,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:08,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:22:08,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052129659] [2023-08-25 19:22:08,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:08,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:22:08,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:08,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:22:08,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:22:08,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 361 [2023-08-25 19:22:08,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 139 flow. Second operand has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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 19:22:08,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:08,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 361 [2023-08-25 19:22:08,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:08,769 INFO L124 PetriNetUnfolderBase]: 1410/2334 cut-off events. [2023-08-25 19:22:08,769 INFO L125 PetriNetUnfolderBase]: For 495/495 co-relation queries the response was YES. [2023-08-25 19:22:08,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5100 conditions, 2334 events. 1410/2334 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 14945 event pairs, 546 based on Foata normal form. 1/2111 useless extension candidates. Maximal degree in co-relation 5089. Up to 996 conditions per place. [2023-08-25 19:22:08,777 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 41 selfloop transitions, 2 changer transitions 43/104 dead transitions. [2023-08-25 19:22:08,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 104 transitions, 461 flow [2023-08-25 19:22:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:22:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:22:08,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2023-08-25 19:22:08,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.502770083102493 [2023-08-25 19:22:08,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1089 transitions. [2023-08-25 19:22:08,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1089 transitions. [2023-08-25 19:22:08,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:08,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1089 transitions. [2023-08-25 19:22:08,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 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 19:22:08,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 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 19:22:08,784 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 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 19:22:08,784 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 139 flow. Second operand 6 states and 1089 transitions. [2023-08-25 19:22:08,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 104 transitions, 461 flow [2023-08-25 19:22:08,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 104 transitions, 452 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-25 19:22:08,786 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 148 flow [2023-08-25 19:22:08,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2023-08-25 19:22:08,786 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -4 predicate places. [2023-08-25 19:22:08,786 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 148 flow [2023-08-25 19:22:08,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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 19:22:08,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:22:08,787 INFO L208 CegarLoopForPetriNet]: trace histogram [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 19:22:08,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:22:08,787 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 19:22:08,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:22:08,787 INFO L85 PathProgramCache]: Analyzing trace with hash 336466890, now seen corresponding path program 3 times [2023-08-25 19:22:08,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:22:08,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695638664] [2023-08-25 19:22:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:22:08,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:22:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:22:08,932 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 19:22:08,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:22:08,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695638664] [2023-08-25 19:22:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695638664] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:22:08,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:22:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:22:08,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204155601] [2023-08-25 19:22:08,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:22:08,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:22:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:22:08,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:22:08,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:22:08,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 361 [2023-08-25 19:22:08,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 171.2) internal successors, (856), 5 states have internal predecessors, (856), 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 19:22:08,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:22:08,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 361 [2023-08-25 19:22:08,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:22:09,151 INFO L124 PetriNetUnfolderBase]: 997/1711 cut-off events. [2023-08-25 19:22:09,151 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2023-08-25 19:22:09,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 1711 events. 997/1711 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 10851 event pairs, 411 based on Foata normal form. 1/1571 useless extension candidates. Maximal degree in co-relation 3918. Up to 820 conditions per place. [2023-08-25 19:22:09,157 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2023-08-25 19:22:09,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 379 flow [2023-08-25 19:22:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:22:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:22:09,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 902 transitions. [2023-08-25 19:22:09,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4997229916897507 [2023-08-25 19:22:09,159 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 902 transitions. [2023-08-25 19:22:09,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 902 transitions. [2023-08-25 19:22:09,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:22:09,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 902 transitions. [2023-08-25 19:22:09,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 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 19:22:09,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 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 19:22:09,163 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 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 19:22:09,163 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 148 flow. Second operand 5 states and 902 transitions. [2023-08-25 19:22:09,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 379 flow [2023-08-25 19:22:09,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 84 transitions, 369 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 19:22:09,165 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2023-08-25 19:22:09,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2023-08-25 19:22:09,166 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -6 predicate places. [2023-08-25 19:22:09,166 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2023-08-25 19:22:09,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 171.2) internal successors, (856), 5 states have internal predecessors, (856), 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 19:22:09,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (36 of 37 remaining) [2023-08-25 19:22:09,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-08-25 19:22:09,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-08-25 19:22:09,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-08-25 19:22:09,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-08-25 19:22:09,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (15 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-08-25 19:22:09,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-08-25 19:22:09,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:22:09,171 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:22:09,174 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:22:09,174 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:22:09,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:22:09 BasicIcfg [2023-08-25 19:22:09,176 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:22:09,176 INFO L158 Benchmark]: Toolchain (without parser) took 7294.16ms. Allocated memory was 362.8MB in the beginning and 539.0MB in the end (delta: 176.2MB). Free memory was 339.3MB in the beginning and 256.1MB in the end (delta: 83.1MB). Peak memory consumption was 260.5MB. Max. memory is 16.0GB. [2023-08-25 19:22:09,176 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 339.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:22:09,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.91ms. Allocated memory is still 362.8MB. Free memory was 338.8MB in the beginning and 328.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 19:22:09,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.07ms. Allocated memory is still 362.8MB. Free memory was 327.9MB in the beginning and 325.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:22:09,177 INFO L158 Benchmark]: Boogie Preprocessor took 28.21ms. Allocated memory is still 362.8MB. Free memory was 325.9MB in the beginning and 324.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:22:09,177 INFO L158 Benchmark]: RCFGBuilder took 409.26ms. Allocated memory is still 362.8MB. Free memory was 324.3MB in the beginning and 305.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 19:22:09,177 INFO L158 Benchmark]: TraceAbstraction took 6586.01ms. Allocated memory was 362.8MB in the beginning and 539.0MB in the end (delta: 176.2MB). Free memory was 304.8MB in the beginning and 256.1MB in the end (delta: 48.7MB). Peak memory consumption was 226.9MB. Max. memory is 16.0GB. [2023-08-25 19:22:09,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 339.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 221.91ms. Allocated memory is still 362.8MB. Free memory was 338.8MB in the beginning and 328.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.07ms. Allocated memory is still 362.8MB. Free memory was 327.9MB in the beginning and 325.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.21ms. Allocated memory is still 362.8MB. Free memory was 325.9MB in the beginning and 324.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 409.26ms. Allocated memory is still 362.8MB. Free memory was 324.3MB in the beginning and 305.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 6586.01ms. Allocated memory was 362.8MB in the beginning and 539.0MB in the end (delta: 176.2MB). Free memory was 304.8MB in the beginning and 256.1MB in the end (delta: 48.7MB). Peak memory consumption was 226.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 184 PlacesBefore, 65 PlacesAfterwards, 180 TransitionsBefore, 58 TransitionsAfterwards, 6072 CoEnabledTransitionPairs, 7 FixpointIterations, 78 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 167 TotalNumberOfCompositions, 21243 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9261, independent: 8838, independent conditional: 0, independent unconditional: 8838, dependent: 423, dependent conditional: 0, dependent unconditional: 423, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3371, independent: 3326, independent conditional: 0, independent unconditional: 3326, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9261, independent: 5512, independent conditional: 0, independent unconditional: 5512, dependent: 378, dependent conditional: 0, dependent unconditional: 378, unknown: 3371, unknown conditional: 0, unknown unconditional: 3371] , Statistics on independence cache: Total cache size (in pairs): 496, Positive cache size: 465, Positive conditional cache size: 0, Positive unconditional cache size: 465, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 258 locations, 37 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: 6.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 922 IncrementalHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 14 mSDtfsCounter, 922 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=9, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 1247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:22:09,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...