/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:57:31,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:57:31,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 08:57:31,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:57:31,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:57:31,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:57:31,272 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:57:31,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:57:31,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:57:31,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:57:31,276 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:57:31,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:57:31,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:57:31,278 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:57:31,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:57:31,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:57:31,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:57:31,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:57:31,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:57:31,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:57:31,279 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:57:31,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:57:31,280 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:57:31,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:57:31,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:57:31,280 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:57:31,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:57:31,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:57:31,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:57:31,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:57:31,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:57:31,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:57:31,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:57:31,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:57:31,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:57:31,283 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:57:31,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:57:31,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:57:31,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:57:31,635 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:57:31,636 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:57:31,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-08-26 08:57:32,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:57:32,939 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:57:32,939 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-08-26 08:57:32,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ae797c8/1e4d01bb1ab64fa9b7234a80ac7fdaa7/FLAG5b76ff42a [2023-08-26 08:57:32,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ae797c8/1e4d01bb1ab64fa9b7234a80ac7fdaa7 [2023-08-26 08:57:32,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:57:32,970 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:57:32,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:57:32,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:57:32,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:57:32,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:57:32" (1/1) ... [2023-08-26 08:57:32,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6522db64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:32, skipping insertion in model container [2023-08-26 08:57:32,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:57:32" (1/1) ... [2023-08-26 08:57:32,997 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:57:33,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:57:33,196 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:57:33,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:57:33,259 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:57:33,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33 WrapperNode [2023-08-26 08:57:33,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:57:33,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:57:33,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:57:33,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:57:33,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,318 INFO L138 Inliner]: procedures = 22, calls = 27, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 120 [2023-08-26 08:57:33,318 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:57:33,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:57:33,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:57:33,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:57:33,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:57:33,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:57:33,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:57:33,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:57:33,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (1/1) ... [2023-08-26 08:57:33,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:57:33,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:57:33,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 08:57:33,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 08:57:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:57:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:57:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:57:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:57:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:57:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 08:57:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 08:57:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:57:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:57:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:57:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:57:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:57:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:57:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:57:33,442 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:57:33,528 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:57:33,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:57:33,825 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:57:33,839 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:57:33,839 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 08:57:33,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:57:33 BoogieIcfgContainer [2023-08-26 08:57:33,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:57:33,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:57:33,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:57:33,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:57:33,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:57:32" (1/3) ... [2023-08-26 08:57:33,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783cb8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:57:33, skipping insertion in model container [2023-08-26 08:57:33,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:33" (2/3) ... [2023-08-26 08:57:33,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783cb8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:57:33, skipping insertion in model container [2023-08-26 08:57:33,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:57:33" (3/3) ... [2023-08-26 08:57:33,848 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2023-08-26 08:57:33,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:57:33,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-26 08:57:33,866 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:57:33,973 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 08:57:34,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 201 transitions, 426 flow [2023-08-26 08:57:34,065 INFO L124 PetriNetUnfolderBase]: 6/198 cut-off events. [2023-08-26 08:57:34,065 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:57:34,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 198 events. 6/198 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 260 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2023-08-26 08:57:34,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 205 places, 201 transitions, 426 flow [2023-08-26 08:57:34,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 187 transitions, 392 flow [2023-08-26 08:57:34,082 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:57:34,090 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 187 transitions, 392 flow [2023-08-26 08:57:34,092 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 187 transitions, 392 flow [2023-08-26 08:57:34,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 187 transitions, 392 flow [2023-08-26 08:57:34,126 INFO L124 PetriNetUnfolderBase]: 6/187 cut-off events. [2023-08-26 08:57:34,127 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:57:34,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 187 events. 6/187 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-08-26 08:57:34,132 INFO L119 LiptonReduction]: Number of co-enabled transitions 6072 [2023-08-26 08:57:38,532 INFO L134 LiptonReduction]: Checked pairs total: 21538 [2023-08-26 08:57:38,532 INFO L136 LiptonReduction]: Total number of compositions: 180 [2023-08-26 08:57:38,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:57:38,551 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;@523289df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:57:38,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-26 08:57:38,552 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:57:38,552 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:57:38,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:57:38,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:38,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:57:38,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:38,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash 704, now seen corresponding path program 1 times [2023-08-26 08:57:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:38,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929619649] [2023-08-26 08:57:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:38,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:38,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:38,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:38,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929619649] [2023-08-26 08:57:38,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929619649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:38,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:38,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:57:38,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891667032] [2023-08-26 08:57:38,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:38,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:57:38,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:38,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:57:38,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:57:38,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 381 [2023-08-26 08:57:38,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:38,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:38,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 381 [2023-08-26 08:57:38,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:38,815 INFO L124 PetriNetUnfolderBase]: 465/771 cut-off events. [2023-08-26 08:57:38,815 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-08-26 08:57:38,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 771 events. 465/771 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4032 event pairs, 333 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 1255. Up to 677 conditions per place. [2023-08-26 08:57:38,824 INFO L140 encePairwiseOnDemand]: 369/381 looper letters, 25 selfloop transitions, 0 changer transitions 0/48 dead transitions. [2023-08-26 08:57:38,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 164 flow [2023-08-26 08:57:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:57:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:57:38,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 421 transitions. [2023-08-26 08:57:38,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55249343832021 [2023-08-26 08:57:38,838 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 421 transitions. [2023-08-26 08:57:38,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 421 transitions. [2023-08-26 08:57:38,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:38,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 421 transitions. [2023-08-26 08:57:38,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:38,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:38,851 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:38,852 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 138 flow. Second operand 2 states and 421 transitions. [2023-08-26 08:57:38,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 48 transitions, 164 flow [2023-08-26 08:57:38,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 152 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 08:57:38,858 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 102 flow [2023-08-26 08:57:38,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=102, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2023-08-26 08:57:38,863 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -17 predicate places. [2023-08-26 08:57:38,863 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 102 flow [2023-08-26 08:57:38,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:38,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:38,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 08:57:38,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:57:38,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:38,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:38,865 INFO L85 PathProgramCache]: Analyzing trace with hash 21550508, now seen corresponding path program 1 times [2023-08-26 08:57:38,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:38,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981718419] [2023-08-26 08:57:38,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:38,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:38,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:38,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981718419] [2023-08-26 08:57:38,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981718419] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:38,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:38,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:57:38,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918371181] [2023-08-26 08:57:38,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:38,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:38,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:38,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:38,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:38,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 381 [2023-08-26 08:57:38,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:38,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:38,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 381 [2023-08-26 08:57:38,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:39,127 INFO L124 PetriNetUnfolderBase]: 981/1729 cut-off events. [2023-08-26 08:57:39,127 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 08:57:39,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3187 conditions, 1729 events. 981/1729 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 10749 event pairs, 243 based on Foata normal form. 0/1478 useless extension candidates. Maximal degree in co-relation 3184. Up to 1394 conditions per place. [2023-08-26 08:57:39,139 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 38 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2023-08-26 08:57:39,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 202 flow [2023-08-26 08:57:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:39,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:39,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 591 transitions. [2023-08-26 08:57:39,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2023-08-26 08:57:39,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 591 transitions. [2023-08-26 08:57:39,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 591 transitions. [2023-08-26 08:57:39,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:39,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 591 transitions. [2023-08-26 08:57:39,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,148 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 102 flow. Second operand 3 states and 591 transitions. [2023-08-26 08:57:39,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 202 flow [2023-08-26 08:57:39,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 57 transitions, 202 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:39,150 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 112 flow [2023-08-26 08:57:39,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2023-08-26 08:57:39,151 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -16 predicate places. [2023-08-26 08:57:39,152 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 112 flow [2023-08-26 08:57:39,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:39,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 08:57:39,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:57:39,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:39,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:39,153 INFO L85 PathProgramCache]: Analyzing trace with hash -764783698, now seen corresponding path program 1 times [2023-08-26 08:57:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:39,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104196694] [2023-08-26 08:57:39,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:39,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:39,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:39,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104196694] [2023-08-26 08:57:39,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104196694] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:39,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:39,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:57:39,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458712484] [2023-08-26 08:57:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:39,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:39,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:39,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:39,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 381 [2023-08-26 08:57:39,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:39,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 381 [2023-08-26 08:57:39,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:39,393 INFO L124 PetriNetUnfolderBase]: 1012/1715 cut-off events. [2023-08-26 08:57:39,393 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-26 08:57:39,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3223 conditions, 1715 events. 1012/1715 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 10142 event pairs, 228 based on Foata normal form. 0/1462 useless extension candidates. Maximal degree in co-relation 3219. Up to 1407 conditions per place. [2023-08-26 08:57:39,405 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 38 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-26 08:57:39,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 210 flow [2023-08-26 08:57:39,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:39,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:39,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2023-08-26 08:57:39,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510061242344707 [2023-08-26 08:57:39,408 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2023-08-26 08:57:39,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2023-08-26 08:57:39,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:39,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2023-08-26 08:57:39,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,412 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 112 flow. Second operand 3 states and 583 transitions. [2023-08-26 08:57:39,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 210 flow [2023-08-26 08:57:39,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:39,416 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 120 flow [2023-08-26 08:57:39,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=48, 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=120, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2023-08-26 08:57:39,417 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -16 predicate places. [2023-08-26 08:57:39,417 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 120 flow [2023-08-26 08:57:39,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:39,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:39,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:57:39,421 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:39,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:39,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2061515684, now seen corresponding path program 1 times [2023-08-26 08:57:39,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:39,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50276933] [2023-08-26 08:57:39,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:39,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:39,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:39,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50276933] [2023-08-26 08:57:39,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50276933] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:39,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:39,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:57:39,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757093951] [2023-08-26 08:57:39,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:39,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:39,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:39,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:39,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:39,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 381 [2023-08-26 08:57:39,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:39,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 381 [2023-08-26 08:57:39,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:39,627 INFO L124 PetriNetUnfolderBase]: 565/946 cut-off events. [2023-08-26 08:57:39,628 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 08:57:39,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1833 conditions, 946 events. 565/946 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5167 event pairs, 319 based on Foata normal form. 0/711 useless extension candidates. Maximal degree in co-relation 1828. Up to 645 conditions per place. [2023-08-26 08:57:39,634 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 35 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2023-08-26 08:57:39,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 222 flow [2023-08-26 08:57:39,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:39,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 591 transitions. [2023-08-26 08:57:39,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2023-08-26 08:57:39,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 591 transitions. [2023-08-26 08:57:39,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 591 transitions. [2023-08-26 08:57:39,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:39,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 591 transitions. [2023-08-26 08:57:39,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,641 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 120 flow. Second operand 3 states and 591 transitions. [2023-08-26 08:57:39,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 222 flow [2023-08-26 08:57:39,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:39,643 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 124 flow [2023-08-26 08:57:39,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2023-08-26 08:57:39,645 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -15 predicate places. [2023-08-26 08:57:39,645 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 124 flow [2023-08-26 08:57:39,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:39,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:39,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:57:39,646 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:39,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:39,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1317315005, now seen corresponding path program 1 times [2023-08-26 08:57:39,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:39,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818162993] [2023-08-26 08:57:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:39,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:39,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:39,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818162993] [2023-08-26 08:57:39,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818162993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:39,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:39,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:57:39,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358578206] [2023-08-26 08:57:39,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:39,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:39,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:39,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:39,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:39,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:39,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:39,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:39,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:39,866 INFO L124 PetriNetUnfolderBase]: 1199/1807 cut-off events. [2023-08-26 08:57:39,867 INFO L125 PetriNetUnfolderBase]: For 297/297 co-relation queries the response was YES. [2023-08-26 08:57:39,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 1807 events. 1199/1807 cut-off events. For 297/297 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8261 event pairs, 305 based on Foata normal form. 0/1594 useless extension candidates. Maximal degree in co-relation 3873. Up to 1710 conditions per place. [2023-08-26 08:57:39,879 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 38 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-08-26 08:57:39,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 226 flow [2023-08-26 08:57:39,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:39,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:39,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 575 transitions. [2023-08-26 08:57:39,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5030621172353456 [2023-08-26 08:57:39,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 575 transitions. [2023-08-26 08:57:39,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 575 transitions. [2023-08-26 08:57:39,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:39,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 575 transitions. [2023-08-26 08:57:39,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,890 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 124 flow. Second operand 3 states and 575 transitions. [2023-08-26 08:57:39,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 226 flow [2023-08-26 08:57:39,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:57:39,893 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 124 flow [2023-08-26 08:57:39,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2023-08-26 08:57:39,896 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -18 predicate places. [2023-08-26 08:57:39,896 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 124 flow [2023-08-26 08:57:39,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:39,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:39,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 08:57:39,897 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:39,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:39,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2112901764, now seen corresponding path program 1 times [2023-08-26 08:57:39,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:39,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676089201] [2023-08-26 08:57:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:39,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:39,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:39,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676089201] [2023-08-26 08:57:39,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676089201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:39,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:39,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:57:39,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291498292] [2023-08-26 08:57:39,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:39,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:39,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:39,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:39,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 381 [2023-08-26 08:57:39,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:39,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:39,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 381 [2023-08-26 08:57:39,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:40,085 INFO L124 PetriNetUnfolderBase]: 632/1025 cut-off events. [2023-08-26 08:57:40,085 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-26 08:57:40,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1025 events. 632/1025 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4955 event pairs, 328 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 2047. Up to 666 conditions per place. [2023-08-26 08:57:40,092 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 35 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2023-08-26 08:57:40,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 226 flow [2023-08-26 08:57:40,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:40,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2023-08-26 08:57:40,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5091863517060368 [2023-08-26 08:57:40,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2023-08-26 08:57:40,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2023-08-26 08:57:40,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:40,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2023-08-26 08:57:40,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,100 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 124 flow. Second operand 3 states and 582 transitions. [2023-08-26 08:57:40,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 226 flow [2023-08-26 08:57:40,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:40,101 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 128 flow [2023-08-26 08:57:40,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2023-08-26 08:57:40,102 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -17 predicate places. [2023-08-26 08:57:40,102 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 128 flow [2023-08-26 08:57:40,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:40,103 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] [2023-08-26 08:57:40,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 08:57:40,103 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:40,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:40,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1845462976, now seen corresponding path program 1 times [2023-08-26 08:57:40,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:40,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517241166] [2023-08-26 08:57:40,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:40,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:40,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:40,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517241166] [2023-08-26 08:57:40,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517241166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:40,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:40,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:57:40,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724203980] [2023-08-26 08:57:40,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:40,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:40,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:40,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:40,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:40,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 381 [2023-08-26 08:57:40,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:40,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 381 [2023-08-26 08:57:40,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:40,675 INFO L124 PetriNetUnfolderBase]: 1054/1726 cut-off events. [2023-08-26 08:57:40,675 INFO L125 PetriNetUnfolderBase]: For 300/300 co-relation queries the response was YES. [2023-08-26 08:57:40,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3806 conditions, 1726 events. 1054/1726 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 9376 event pairs, 441 based on Foata normal form. 1/1429 useless extension candidates. Maximal degree in co-relation 3799. Up to 795 conditions per place. [2023-08-26 08:57:40,688 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 53 selfloop transitions, 4 changer transitions 1/76 dead transitions. [2023-08-26 08:57:40,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 76 transitions, 325 flow [2023-08-26 08:57:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 08:57:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 08:57:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 803 transitions. [2023-08-26 08:57:40,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5269028871391076 [2023-08-26 08:57:40,691 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 803 transitions. [2023-08-26 08:57:40,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 803 transitions. [2023-08-26 08:57:40,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:40,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 803 transitions. [2023-08-26 08:57:40,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 200.75) internal successors, (803), 4 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,695 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,695 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 128 flow. Second operand 4 states and 803 transitions. [2023-08-26 08:57:40,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 76 transitions, 325 flow [2023-08-26 08:57:40,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 76 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:57:40,699 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 141 flow [2023-08-26 08:57:40,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, 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=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2023-08-26 08:57:40,699 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -15 predicate places. [2023-08-26 08:57:40,700 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 141 flow [2023-08-26 08:57:40,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:40,700 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] [2023-08-26 08:57:40,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:57:40,701 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:40,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:40,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1587967196, now seen corresponding path program 1 times [2023-08-26 08:57:40,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:40,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040249476] [2023-08-26 08:57:40,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:40,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:40,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:40,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040249476] [2023-08-26 08:57:40,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040249476] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:40,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:40,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:57:40,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841217410] [2023-08-26 08:57:40,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:40,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:40,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:40,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:40,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:40,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:40,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:40,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:40,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:40,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:41,381 INFO L124 PetriNetUnfolderBase]: 1659/2816 cut-off events. [2023-08-26 08:57:41,382 INFO L125 PetriNetUnfolderBase]: For 344/344 co-relation queries the response was YES. [2023-08-26 08:57:41,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6165 conditions, 2816 events. 1659/2816 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17861 event pairs, 645 based on Foata normal form. 0/2310 useless extension candidates. Maximal degree in co-relation 6157. Up to 1119 conditions per place. [2023-08-26 08:57:41,400 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 71 selfloop transitions, 6 changer transitions 6/101 dead transitions. [2023-08-26 08:57:41,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 101 transitions, 456 flow [2023-08-26 08:57:41,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:57:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:57:41,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 967 transitions. [2023-08-26 08:57:41,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5076115485564304 [2023-08-26 08:57:41,403 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 967 transitions. [2023-08-26 08:57:41,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 967 transitions. [2023-08-26 08:57:41,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:41,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 967 transitions. [2023-08-26 08:57:41,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.4) internal successors, (967), 5 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:41,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:41,409 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:41,409 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 141 flow. Second operand 5 states and 967 transitions. [2023-08-26 08:57:41,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 101 transitions, 456 flow [2023-08-26 08:57:41,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 101 transitions, 449 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:57:41,412 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 170 flow [2023-08-26 08:57:41,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=51, 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=5, PETRI_FLOW=170, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2023-08-26 08:57:41,413 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -11 predicate places. [2023-08-26 08:57:41,413 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 170 flow [2023-08-26 08:57:41,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:41,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:41,413 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] [2023-08-26 08:57:41,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 08:57:41,414 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:41,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:41,414 INFO L85 PathProgramCache]: Analyzing trace with hash -702196220, now seen corresponding path program 2 times [2023-08-26 08:57:41,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:41,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792127622] [2023-08-26 08:57:41,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:41,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:41,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:41,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792127622] [2023-08-26 08:57:41,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792127622] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:41,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:41,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:57:41,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564180897] [2023-08-26 08:57:41,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:41,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:41,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:41,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:41,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:41,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:41,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:41,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:41,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:41,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:42,264 INFO L124 PetriNetUnfolderBase]: 1884/3381 cut-off events. [2023-08-26 08:57:42,265 INFO L125 PetriNetUnfolderBase]: For 1409/1620 co-relation queries the response was YES. [2023-08-26 08:57:42,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7908 conditions, 3381 events. 1884/3381 cut-off events. For 1409/1620 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 23347 event pairs, 556 based on Foata normal form. 57/3260 useless extension candidates. Maximal degree in co-relation 7899. Up to 955 conditions per place. [2023-08-26 08:57:42,288 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 82 selfloop transitions, 8 changer transitions 3/111 dead transitions. [2023-08-26 08:57:42,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 111 transitions, 549 flow [2023-08-26 08:57:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:57:42,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:57:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 968 transitions. [2023-08-26 08:57:42,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081364829396325 [2023-08-26 08:57:42,291 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 968 transitions. [2023-08-26 08:57:42,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 968 transitions. [2023-08-26 08:57:42,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:42,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 968 transitions. [2023-08-26 08:57:42,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.6) internal successors, (968), 5 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:42,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:42,297 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:42,297 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 170 flow. Second operand 5 states and 968 transitions. [2023-08-26 08:57:42,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 111 transitions, 549 flow [2023-08-26 08:57:42,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 111 transitions, 549 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:42,300 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 236 flow [2023-08-26 08:57:42,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2023-08-26 08:57:42,301 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -4 predicate places. [2023-08-26 08:57:42,301 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 236 flow [2023-08-26 08:57:42,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:42,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:42,302 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] [2023-08-26 08:57:42,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 08:57:42,302 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:42,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:42,303 INFO L85 PathProgramCache]: Analyzing trace with hash -485935542, now seen corresponding path program 1 times [2023-08-26 08:57:42,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:42,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240347332] [2023-08-26 08:57:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:42,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:42,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:42,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240347332] [2023-08-26 08:57:42,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240347332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:42,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:42,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:57:42,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358153217] [2023-08-26 08:57:42,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:42,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:42,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:42,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:42,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:42,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:42,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:42,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:42,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:42,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:43,033 INFO L124 PetriNetUnfolderBase]: 1986/3661 cut-off events. [2023-08-26 08:57:43,033 INFO L125 PetriNetUnfolderBase]: For 3968/4563 co-relation queries the response was YES. [2023-08-26 08:57:43,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9370 conditions, 3661 events. 1986/3661 cut-off events. For 3968/4563 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25560 event pairs, 692 based on Foata normal form. 70/3542 useless extension candidates. Maximal degree in co-relation 9357. Up to 1146 conditions per place. [2023-08-26 08:57:43,056 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 82 selfloop transitions, 10 changer transitions 1/111 dead transitions. [2023-08-26 08:57:43,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 111 transitions, 624 flow [2023-08-26 08:57:43,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:57:43,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:57:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 966 transitions. [2023-08-26 08:57:43,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5070866141732283 [2023-08-26 08:57:43,059 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 966 transitions. [2023-08-26 08:57:43,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 966 transitions. [2023-08-26 08:57:43,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:43,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 966 transitions. [2023-08-26 08:57:43,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,065 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,065 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 236 flow. Second operand 5 states and 966 transitions. [2023-08-26 08:57:43,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 111 transitions, 624 flow [2023-08-26 08:57:43,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 111 transitions, 624 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:43,072 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 323 flow [2023-08-26 08:57:43,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2023-08-26 08:57:43,073 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 3 predicate places. [2023-08-26 08:57:43,073 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 323 flow [2023-08-26 08:57:43,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:43,074 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] [2023-08-26 08:57:43,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 08:57:43,074 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:43,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:43,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1153955694, now seen corresponding path program 2 times [2023-08-26 08:57:43,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:43,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886531234] [2023-08-26 08:57:43,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:43,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:43,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:43,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:43,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886531234] [2023-08-26 08:57:43,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886531234] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:43,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:43,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:57:43,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092273013] [2023-08-26 08:57:43,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:43,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:43,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:43,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:43,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:43,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:43,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:43,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:43,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:43,898 INFO L124 PetriNetUnfolderBase]: 1856/3473 cut-off events. [2023-08-26 08:57:43,898 INFO L125 PetriNetUnfolderBase]: For 6737/7171 co-relation queries the response was YES. [2023-08-26 08:57:43,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9632 conditions, 3473 events. 1856/3473 cut-off events. For 6737/7171 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 24448 event pairs, 401 based on Foata normal form. 47/3367 useless extension candidates. Maximal degree in co-relation 9615. Up to 1254 conditions per place. [2023-08-26 08:57:43,925 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 79 selfloop transitions, 15 changer transitions 1/113 dead transitions. [2023-08-26 08:57:43,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 113 transitions, 737 flow [2023-08-26 08:57:43,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:57:43,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:57:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 961 transitions. [2023-08-26 08:57:43,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044619422572179 [2023-08-26 08:57:43,928 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 961 transitions. [2023-08-26 08:57:43,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 961 transitions. [2023-08-26 08:57:43,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:43,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 961 transitions. [2023-08-26 08:57:43,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.2) internal successors, (961), 5 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,934 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,934 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 323 flow. Second operand 5 states and 961 transitions. [2023-08-26 08:57:43,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 113 transitions, 737 flow [2023-08-26 08:57:43,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 113 transitions, 731 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:43,944 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 472 flow [2023-08-26 08:57:43,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=472, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2023-08-26 08:57:43,944 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 11 predicate places. [2023-08-26 08:57:43,945 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 472 flow [2023-08-26 08:57:43,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:43,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:43,945 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] [2023-08-26 08:57:43,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 08:57:43,945 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:43,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1938345134, now seen corresponding path program 3 times [2023-08-26 08:57:43,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:43,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528001717] [2023-08-26 08:57:43,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:43,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:44,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528001717] [2023-08-26 08:57:44,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528001717] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:44,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:44,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:57:44,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439719813] [2023-08-26 08:57:44,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:44,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:44,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:44,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:44,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:44,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:44,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 472 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:44,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:44,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:44,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:44,664 INFO L124 PetriNetUnfolderBase]: 1763/3169 cut-off events. [2023-08-26 08:57:44,665 INFO L125 PetriNetUnfolderBase]: For 11282/11607 co-relation queries the response was YES. [2023-08-26 08:57:44,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9793 conditions, 3169 events. 1763/3169 cut-off events. For 11282/11607 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 21558 event pairs, 837 based on Foata normal form. 46/2979 useless extension candidates. Maximal degree in co-relation 9772. Up to 1661 conditions per place. [2023-08-26 08:57:44,689 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 83 selfloop transitions, 10 changer transitions 5/116 dead transitions. [2023-08-26 08:57:44,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 116 transitions, 849 flow [2023-08-26 08:57:44,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:57:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:57:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 962 transitions. [2023-08-26 08:57:44,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50498687664042 [2023-08-26 08:57:44,694 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 962 transitions. [2023-08-26 08:57:44,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 962 transitions. [2023-08-26 08:57:44,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:44,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 962 transitions. [2023-08-26 08:57:44,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.4) internal successors, (962), 5 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:44,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:44,701 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:44,701 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 472 flow. Second operand 5 states and 962 transitions. [2023-08-26 08:57:44,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 116 transitions, 849 flow [2023-08-26 08:57:44,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 116 transitions, 837 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:44,757 INFO L231 Difference]: Finished difference. Result has 84 places, 70 transitions, 502 flow [2023-08-26 08:57:44,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=502, PETRI_PLACES=84, PETRI_TRANSITIONS=70} [2023-08-26 08:57:44,758 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 17 predicate places. [2023-08-26 08:57:44,758 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 502 flow [2023-08-26 08:57:44,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:44,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:44,759 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] [2023-08-26 08:57:44,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 08:57:44,759 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:44,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:44,760 INFO L85 PathProgramCache]: Analyzing trace with hash -605748168, now seen corresponding path program 3 times [2023-08-26 08:57:44,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:44,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577669458] [2023-08-26 08:57:44,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:44,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:44,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:44,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577669458] [2023-08-26 08:57:44,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577669458] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:44,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:44,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:57:44,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893702264] [2023-08-26 08:57:44,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:44,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:44,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:44,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:44,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:44,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:45,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 502 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:45,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:45,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:45,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:45,453 INFO L124 PetriNetUnfolderBase]: 1627/3036 cut-off events. [2023-08-26 08:57:45,453 INFO L125 PetriNetUnfolderBase]: For 12221/13943 co-relation queries the response was YES. [2023-08-26 08:57:45,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9427 conditions, 3036 events. 1627/3036 cut-off events. For 12221/13943 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 21161 event pairs, 549 based on Foata normal form. 76/2990 useless extension candidates. Maximal degree in co-relation 9403. Up to 834 conditions per place. [2023-08-26 08:57:45,478 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 92 selfloop transitions, 13 changer transitions 0/123 dead transitions. [2023-08-26 08:57:45,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 123 transitions, 919 flow [2023-08-26 08:57:45,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:57:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:57:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 966 transitions. [2023-08-26 08:57:45,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5070866141732283 [2023-08-26 08:57:45,481 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 966 transitions. [2023-08-26 08:57:45,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 966 transitions. [2023-08-26 08:57:45,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:45,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 966 transitions. [2023-08-26 08:57:45,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:45,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:45,486 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:45,487 INFO L175 Difference]: Start difference. First operand has 84 places, 70 transitions, 502 flow. Second operand 5 states and 966 transitions. [2023-08-26 08:57:45,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 123 transitions, 919 flow [2023-08-26 08:57:45,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 123 transitions, 907 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:45,529 INFO L231 Difference]: Finished difference. Result has 91 places, 76 transitions, 611 flow [2023-08-26 08:57:45,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=611, PETRI_PLACES=91, PETRI_TRANSITIONS=76} [2023-08-26 08:57:45,530 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 24 predicate places. [2023-08-26 08:57:45,530 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 76 transitions, 611 flow [2023-08-26 08:57:45,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:45,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:45,531 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] [2023-08-26 08:57:45,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 08:57:45,531 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:45,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:45,531 INFO L85 PathProgramCache]: Analyzing trace with hash 538078350, now seen corresponding path program 4 times [2023-08-26 08:57:45,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:45,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857779778] [2023-08-26 08:57:45,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:45,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:45,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:45,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857779778] [2023-08-26 08:57:45,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857779778] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:45,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:45,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:57:45,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184191481] [2023-08-26 08:57:45,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:45,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:45,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:45,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:45,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:45,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:45,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 76 transitions, 611 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:45,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:45,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:45,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:46,247 INFO L124 PetriNetUnfolderBase]: 1480/2811 cut-off events. [2023-08-26 08:57:46,247 INFO L125 PetriNetUnfolderBase]: For 14681/15345 co-relation queries the response was YES. [2023-08-26 08:57:46,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9181 conditions, 2811 events. 1480/2811 cut-off events. For 14681/15345 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 19704 event pairs, 518 based on Foata normal form. 61/2726 useless extension candidates. Maximal degree in co-relation 9153. Up to 745 conditions per place. [2023-08-26 08:57:46,270 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 87 selfloop transitions, 16 changer transitions 0/121 dead transitions. [2023-08-26 08:57:46,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 121 transitions, 970 flow [2023-08-26 08:57:46,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:57:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:57:46,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 963 transitions. [2023-08-26 08:57:46,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5055118110236221 [2023-08-26 08:57:46,274 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 963 transitions. [2023-08-26 08:57:46,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 963 transitions. [2023-08-26 08:57:46,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:46,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 963 transitions. [2023-08-26 08:57:46,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.6) internal successors, (963), 5 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:46,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:46,280 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:46,280 INFO L175 Difference]: Start difference. First operand has 91 places, 76 transitions, 611 flow. Second operand 5 states and 963 transitions. [2023-08-26 08:57:46,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 121 transitions, 970 flow [2023-08-26 08:57:46,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 121 transitions, 956 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:46,308 INFO L231 Difference]: Finished difference. Result has 98 places, 80 transitions, 705 flow [2023-08-26 08:57:46,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=705, PETRI_PLACES=98, PETRI_TRANSITIONS=80} [2023-08-26 08:57:46,308 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 31 predicate places. [2023-08-26 08:57:46,308 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 80 transitions, 705 flow [2023-08-26 08:57:46,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:46,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:46,309 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] [2023-08-26 08:57:46,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 08:57:46,309 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:46,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:46,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2053163228, now seen corresponding path program 4 times [2023-08-26 08:57:46,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:46,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920124146] [2023-08-26 08:57:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:46,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:46,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:46,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920124146] [2023-08-26 08:57:46,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920124146] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:46,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:46,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:57:46,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116361104] [2023-08-26 08:57:46,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:46,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:57:46,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:46,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:57:46,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:57:46,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-26 08:57:46,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 80 transitions, 705 flow. Second operand has 5 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) [2023-08-26 08:57:46,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:46,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-26 08:57:46,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:46,983 INFO L124 PetriNetUnfolderBase]: 1493/2778 cut-off events. [2023-08-26 08:57:46,983 INFO L125 PetriNetUnfolderBase]: For 17269/18591 co-relation queries the response was YES. [2023-08-26 08:57:46,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9659 conditions, 2778 events. 1493/2778 cut-off events. For 17269/18591 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 19254 event pairs, 647 based on Foata normal form. 59/2665 useless extension candidates. Maximal degree in co-relation 9628. Up to 1063 conditions per place. [2023-08-26 08:57:47,006 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 88 selfloop transitions, 16 changer transitions 0/122 dead transitions. [2023-08-26 08:57:47,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 122 transitions, 1079 flow [2023-08-26 08:57:47,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:57:47,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:57:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 959 transitions. [2023-08-26 08:57:47,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5034120734908136 [2023-08-26 08:57:47,009 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 959 transitions. [2023-08-26 08:57:47,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 959 transitions. [2023-08-26 08:57:47,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:47,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 959 transitions. [2023-08-26 08:57:47,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 191.8) internal successors, (959), 5 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,015 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,015 INFO L175 Difference]: Start difference. First operand has 98 places, 80 transitions, 705 flow. Second operand 5 states and 959 transitions. [2023-08-26 08:57:47,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 122 transitions, 1079 flow [2023-08-26 08:57:47,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 122 transitions, 1065 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-26 08:57:47,048 INFO L231 Difference]: Finished difference. Result has 104 places, 85 transitions, 830 flow [2023-08-26 08:57:47,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=830, PETRI_PLACES=104, PETRI_TRANSITIONS=85} [2023-08-26 08:57:47,049 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 37 predicate places. [2023-08-26 08:57:47,049 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 85 transitions, 830 flow [2023-08-26 08:57:47,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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) [2023-08-26 08:57:47,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:47,050 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] [2023-08-26 08:57:47,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 08:57:47,050 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:47,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:47,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1666514399, now seen corresponding path program 1 times [2023-08-26 08:57:47,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:47,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69250493] [2023-08-26 08:57:47,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:47,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:47,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:47,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69250493] [2023-08-26 08:57:47,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69250493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:47,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:47,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:57:47,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999347346] [2023-08-26 08:57:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:47,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:47,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:47,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:47,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 381 [2023-08-26 08:57:47,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 85 transitions, 830 flow. Second operand has 4 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:47,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 381 [2023-08-26 08:57:47,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:47,497 INFO L124 PetriNetUnfolderBase]: 1494/2778 cut-off events. [2023-08-26 08:57:47,498 INFO L125 PetriNetUnfolderBase]: For 18204/19152 co-relation queries the response was YES. [2023-08-26 08:57:47,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10081 conditions, 2778 events. 1494/2778 cut-off events. For 18204/19152 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 19544 event pairs, 806 based on Foata normal form. 26/2611 useless extension candidates. Maximal degree in co-relation 10048. Up to 1724 conditions per place. [2023-08-26 08:57:47,521 INFO L140 encePairwiseOnDemand]: 379/381 looper letters, 54 selfloop transitions, 1 changer transitions 39/112 dead transitions. [2023-08-26 08:57:47,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 112 transitions, 1227 flow [2023-08-26 08:57:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:47,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 591 transitions. [2023-08-26 08:57:47,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2023-08-26 08:57:47,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 591 transitions. [2023-08-26 08:57:47,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 591 transitions. [2023-08-26 08:57:47,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:47,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 591 transitions. [2023-08-26 08:57:47,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,527 INFO L175 Difference]: Start difference. First operand has 104 places, 85 transitions, 830 flow. Second operand 3 states and 591 transitions. [2023-08-26 08:57:47,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 112 transitions, 1227 flow [2023-08-26 08:57:47,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 112 transitions, 1210 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-26 08:57:47,559 INFO L231 Difference]: Finished difference. Result has 106 places, 67 transitions, 545 flow [2023-08-26 08:57:47,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=106, PETRI_TRANSITIONS=67} [2023-08-26 08:57:47,559 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 39 predicate places. [2023-08-26 08:57:47,559 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 67 transitions, 545 flow [2023-08-26 08:57:47,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:47,560 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] [2023-08-26 08:57:47,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 08:57:47,560 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:47,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:47,560 INFO L85 PathProgramCache]: Analyzing trace with hash 65222012, now seen corresponding path program 1 times [2023-08-26 08:57:47,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:47,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671243356] [2023-08-26 08:57:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:47,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:47,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:47,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671243356] [2023-08-26 08:57:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671243356] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:47,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:47,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:57:47,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663104542] [2023-08-26 08:57:47,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:47,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:47,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:47,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:47,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:47,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 381 [2023-08-26 08:57:47,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 67 transitions, 545 flow. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:47,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:47,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 381 [2023-08-26 08:57:47,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:48,188 INFO L124 PetriNetUnfolderBase]: 942/1919 cut-off events. [2023-08-26 08:57:48,189 INFO L125 PetriNetUnfolderBase]: For 9831/9895 co-relation queries the response was YES. [2023-08-26 08:57:48,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6404 conditions, 1919 events. 942/1919 cut-off events. For 9831/9895 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 13316 event pairs, 492 based on Foata normal form. 4/1799 useless extension candidates. Maximal degree in co-relation 6370. Up to 1060 conditions per place. [2023-08-26 08:57:48,207 INFO L140 encePairwiseOnDemand]: 378/381 looper letters, 61 selfloop transitions, 3 changer transitions 11/93 dead transitions. [2023-08-26 08:57:48,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 93 transitions, 845 flow [2023-08-26 08:57:48,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 08:57:48,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 08:57:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 760 transitions. [2023-08-26 08:57:48,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49868766404199477 [2023-08-26 08:57:48,210 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 760 transitions. [2023-08-26 08:57:48,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 760 transitions. [2023-08-26 08:57:48,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:48,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 760 transitions. [2023-08-26 08:57:48,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,215 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,215 INFO L175 Difference]: Start difference. First operand has 106 places, 67 transitions, 545 flow. Second operand 4 states and 760 transitions. [2023-08-26 08:57:48,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 93 transitions, 845 flow [2023-08-26 08:57:48,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 93 transitions, 823 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-26 08:57:48,232 INFO L231 Difference]: Finished difference. Result has 104 places, 67 transitions, 536 flow [2023-08-26 08:57:48,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=536, PETRI_PLACES=104, PETRI_TRANSITIONS=67} [2023-08-26 08:57:48,233 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 37 predicate places. [2023-08-26 08:57:48,233 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 67 transitions, 536 flow [2023-08-26 08:57:48,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:48,233 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] [2023-08-26 08:57:48,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 08:57:48,234 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-26 08:57:48,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1453187996, now seen corresponding path program 2 times [2023-08-26 08:57:48,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:48,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030282726] [2023-08-26 08:57:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:48,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:48,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:48,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030282726] [2023-08-26 08:57:48,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030282726] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:48,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:48,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:57:48,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216554624] [2023-08-26 08:57:48,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:48,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:48,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:48,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:48,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:48,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 381 [2023-08-26 08:57:48,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 67 transitions, 536 flow. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:48,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 381 [2023-08-26 08:57:48,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:48,885 INFO L124 PetriNetUnfolderBase]: 943/1900 cut-off events. [2023-08-26 08:57:48,885 INFO L125 PetriNetUnfolderBase]: For 9398/9534 co-relation queries the response was YES. [2023-08-26 08:57:48,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6496 conditions, 1900 events. 943/1900 cut-off events. For 9398/9534 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 12898 event pairs, 444 based on Foata normal form. 3/1759 useless extension candidates. Maximal degree in co-relation 6466. Up to 984 conditions per place. [2023-08-26 08:57:48,895 INFO L140 encePairwiseOnDemand]: 378/381 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2023-08-26 08:57:48,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 94 transitions, 860 flow [2023-08-26 08:57:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 08:57:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 08:57:48,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 761 transitions. [2023-08-26 08:57:48,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49934383202099736 [2023-08-26 08:57:48,898 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 761 transitions. [2023-08-26 08:57:48,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 761 transitions. [2023-08-26 08:57:48,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:48,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 761 transitions. [2023-08-26 08:57:48,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.25) internal successors, (761), 4 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,902 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,903 INFO L175 Difference]: Start difference. First operand has 104 places, 67 transitions, 536 flow. Second operand 4 states and 761 transitions. [2023-08-26 08:57:48,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 94 transitions, 860 flow [2023-08-26 08:57:48,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 94 transitions, 852 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-26 08:57:48,917 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2023-08-26 08:57:48,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2023-08-26 08:57:48,918 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 36 predicate places. [2023-08-26 08:57:48,918 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2023-08-26 08:57:48,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:48,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (38 of 39 remaining) [2023-08-26 08:57:48,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-08-26 08:57:48,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-08-26 08:57:48,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-08-26 08:57:48,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-08-26 08:57:48,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-08-26 08:57:48,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-08-26 08:57:48,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-08-26 08:57:48,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-08-26 08:57:48,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-08-26 08:57:48,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-08-26 08:57:48,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-08-26 08:57:48,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-08-26 08:57:48,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-08-26 08:57:48,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-08-26 08:57:48,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-08-26 08:57:48,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-08-26 08:57:48,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-08-26 08:57:48,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-08-26 08:57:48,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-08-26 08:57:48,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-08-26 08:57:48,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-08-26 08:57:48,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-08-26 08:57:48,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONASSERT (15 of 39 remaining) [2023-08-26 08:57:48,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 39 remaining) [2023-08-26 08:57:48,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 39 remaining) [2023-08-26 08:57:48,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 39 remaining) [2023-08-26 08:57:48,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-08-26 08:57:48,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-08-26 08:57:48,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-08-26 08:57:48,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-08-26 08:57:48,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-08-26 08:57:48,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-08-26 08:57:48,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-08-26 08:57:48,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-08-26 08:57:48,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-08-26 08:57:48,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-08-26 08:57:48,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-08-26 08:57:48,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-08-26 08:57:48,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 08:57:48,928 INFO L445 BasicCegarLoop]: Path program histogram: [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:48,933 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 08:57:48,933 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 08:57:48,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:57:48 BasicIcfg [2023-08-26 08:57:48,936 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 08:57:48,937 INFO L158 Benchmark]: Toolchain (without parser) took 15966.28ms. Allocated memory was 354.4MB in the beginning and 706.7MB in the end (delta: 352.3MB). Free memory was 314.1MB in the beginning and 640.7MB in the end (delta: -326.6MB). Peak memory consumption was 422.5MB. Max. memory is 16.0GB. [2023-08-26 08:57:48,937 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 354.4MB. Free memory is still 331.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 08:57:48,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.58ms. Allocated memory is still 354.4MB. Free memory was 313.6MB in the beginning and 302.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 08:57:48,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.33ms. Allocated memory is still 354.4MB. Free memory was 302.0MB in the beginning and 300.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:57:48,937 INFO L158 Benchmark]: Boogie Preprocessor took 47.61ms. Allocated memory is still 354.4MB. Free memory was 300.0MB in the beginning and 298.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:57:48,938 INFO L158 Benchmark]: RCFGBuilder took 473.59ms. Allocated memory is still 354.4MB. Free memory was 298.3MB in the beginning and 323.7MB in the end (delta: -25.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.0GB. [2023-08-26 08:57:48,938 INFO L158 Benchmark]: TraceAbstraction took 15093.34ms. Allocated memory was 354.4MB in the beginning and 706.7MB in the end (delta: 352.3MB). Free memory was 323.7MB in the beginning and 640.7MB in the end (delta: -316.9MB). Peak memory consumption was 430.2MB. Max. memory is 16.0GB. [2023-08-26 08:57:48,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 354.4MB. Free memory is still 331.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 286.58ms. Allocated memory is still 354.4MB. Free memory was 313.6MB in the beginning and 302.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.33ms. Allocated memory is still 354.4MB. Free memory was 302.0MB in the beginning and 300.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.61ms. Allocated memory is still 354.4MB. Free memory was 300.0MB in the beginning and 298.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 473.59ms. Allocated memory is still 354.4MB. Free memory was 298.3MB in the beginning and 323.7MB in the end (delta: -25.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.0GB. * TraceAbstraction took 15093.34ms. Allocated memory was 354.4MB in the beginning and 706.7MB in the end (delta: 352.3MB). Free memory was 323.7MB in the beginning and 640.7MB in the end (delta: -316.9MB). Peak memory consumption was 430.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 191 PlacesBefore, 67 PlacesAfterwards, 187 TransitionsBefore, 60 TransitionsAfterwards, 6072 CoEnabledTransitionPairs, 7 FixpointIterations, 96 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 180 TotalNumberOfCompositions, 21538 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11470, independent: 11044, independent conditional: 0, independent unconditional: 11044, dependent: 426, dependent conditional: 0, dependent unconditional: 426, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3508, independent: 3463, independent conditional: 0, independent unconditional: 3463, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11470, independent: 7581, independent conditional: 0, independent unconditional: 7581, dependent: 381, dependent conditional: 0, dependent unconditional: 381, unknown: 3508, unknown conditional: 0, unknown unconditional: 3508] , Statistics on independence cache: Total cache size (in pairs): 535, Positive cache size: 506, Positive conditional cache size: 0, Positive unconditional cache size: 506, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, 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: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: 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, 265 locations, 39 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: 14.9s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 510 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 510 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1793 IncrementalHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 15 mSDtfsCounter, 1793 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=830occurred in iteration=15, InterpolantAutomatonStates: 72, 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, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 381 ConstructedInterpolants, 0 QuantifiedInterpolants, 4475 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 08:57:48,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...