./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:28:57,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:28:57,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:28:57,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:28:57,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:28:57,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:28:57,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:28:57,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:28:57,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:28:57,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:28:57,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:28:57,344 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:28:57,344 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:28:57,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:28:57,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:28:57,346 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:28:57,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:28:57,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:28:57,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:28:57,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:28:57,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:28:57,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:28:57,349 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:28:57,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:28:57,349 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:28:57,350 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:28:57,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:28:57,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:28:57,351 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:28:57,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:28:57,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:28:57,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:28:57,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:28:57,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:28:57,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:28:57,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:28:57,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:28:57,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:28:57,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:28:57,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:28:57,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:28:57,355 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2024-11-10 14:28:57,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:28:57,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:28:57,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:28:57,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:28:57,650 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:28:57,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-11-10 14:28:59,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:28:59,348 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:28:59,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-11-10 14:28:59,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b77d04919/0c7cef2196a94f3f8fffee4d3134aca2/FLAG1ab579eef [2024-11-10 14:28:59,383 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b77d04919/0c7cef2196a94f3f8fffee4d3134aca2 [2024-11-10 14:28:59,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:28:59,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:28:59,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:28:59,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:28:59,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:28:59,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:28:59" (1/1) ... [2024-11-10 14:28:59,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e9777d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:59, skipping insertion in model container [2024-11-10 14:28:59,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:28:59" (1/1) ... [2024-11-10 14:28:59,451 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:28:59,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:28:59,937 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:28:59,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:29:00,056 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:29:00,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00 WrapperNode [2024-11-10 14:29:00,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:29:00,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:29:00,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:29:00,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:29:00,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,129 INFO L138 Inliner]: procedures = 263, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2024-11-10 14:29:00,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:29:00,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:29:00,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:29:00,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:29:00,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:29:00,163 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:29:00,163 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:29:00,163 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:29:00,164 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:29:00,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:00,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:29:00,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:29:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:29:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:29:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:29:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:29:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:29:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:29:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:29:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:29:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:29:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:29:00,256 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:29:00,371 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:29:00,373 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:29:00,735 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:29:00,735 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:29:00,771 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:29:00,771 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:29:00,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:00 BoogieIcfgContainer [2024-11-10 14:29:00,772 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:29:00,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:29:00,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:29:00,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:29:00,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:28:59" (1/3) ... [2024-11-10 14:29:00,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb10343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:29:00, skipping insertion in model container [2024-11-10 14:29:00,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (2/3) ... [2024-11-10 14:29:00,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb10343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:29:00, skipping insertion in model container [2024-11-10 14:29:00,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:00" (3/3) ... [2024-11-10 14:29:00,785 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2024-11-10 14:29:00,816 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:29:00,817 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 14:29:00,817 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:29:00,931 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:29:00,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 184 transitions, 372 flow [2024-11-10 14:29:01,061 INFO L124 PetriNetUnfolderBase]: 6/183 cut-off events. [2024-11-10 14:29:01,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:01,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 183 events. 6/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 224 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2024-11-10 14:29:01,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 184 transitions, 372 flow [2024-11-10 14:29:01,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 183 transitions, 369 flow [2024-11-10 14:29:01,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:29:01,097 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2f7de5fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:29:01,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-10 14:29:01,126 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:29:01,126 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-10 14:29:01,126 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:01,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:01,127 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:01,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:01,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:01,133 INFO L85 PathProgramCache]: Analyzing trace with hash -128328565, now seen corresponding path program 1 times [2024-11-10 14:29:01,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:01,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863988647] [2024-11-10 14:29:01,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:01,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:01,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:01,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863988647] [2024-11-10 14:29:01,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863988647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:01,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:01,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:29:01,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769641064] [2024-11-10 14:29:01,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:01,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:29:01,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:01,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:29:01,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:29:01,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 184 [2024-11-10 14:29:01,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 183 transitions, 369 flow. Second operand has 2 states, 2 states have (on average 177.5) internal successors, (355), 2 states have internal predecessors, (355), 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) [2024-11-10 14:29:01,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:01,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 184 [2024-11-10 14:29:01,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:01,549 INFO L124 PetriNetUnfolderBase]: 9/258 cut-off events. [2024-11-10 14:29:01,549 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:29:01,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 258 events. 9/258 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 472 event pairs, 4 based on Foata normal form. 9/251 useless extension candidates. Maximal degree in co-relation 191. Up to 16 conditions per place. [2024-11-10 14:29:01,553 INFO L140 encePairwiseOnDemand]: 181/184 looper letters, 5 selfloop transitions, 0 changer transitions 0/180 dead transitions. [2024-11-10 14:29:01,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 180 transitions, 373 flow [2024-11-10 14:29:01,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:29:01,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:29:01,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 360 transitions. [2024-11-10 14:29:01,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9782608695652174 [2024-11-10 14:29:01,572 INFO L175 Difference]: Start difference. First operand has 181 places, 183 transitions, 369 flow. Second operand 2 states and 360 transitions. [2024-11-10 14:29:01,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 180 transitions, 373 flow [2024-11-10 14:29:01,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 180 transitions, 372 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:01,582 INFO L231 Difference]: Finished difference. Result has 181 places, 180 transitions, 362 flow [2024-11-10 14:29:01,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=362, PETRI_PLACES=181, PETRI_TRANSITIONS=180} [2024-11-10 14:29:01,589 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 0 predicate places. [2024-11-10 14:29:01,590 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 180 transitions, 362 flow [2024-11-10 14:29:01,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 177.5) internal successors, (355), 2 states have internal predecessors, (355), 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) [2024-11-10 14:29:01,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:01,590 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:01,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:29:01,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:01,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:01,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1912332008, now seen corresponding path program 1 times [2024-11-10 14:29:01,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:01,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649813660] [2024-11-10 14:29:01,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:01,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:01,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:01,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:01,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649813660] [2024-11-10 14:29:01,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649813660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:01,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:01,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:29:01,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506794040] [2024-11-10 14:29:01,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:01,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:29:01,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:01,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:29:01,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:29:01,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 184 [2024-11-10 14:29:01,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 180 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-10 14:29:01,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:01,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 184 [2024-11-10 14:29:01,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:01,922 INFO L124 PetriNetUnfolderBase]: 12/302 cut-off events. [2024-11-10 14:29:01,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:01,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 302 events. 12/302 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 688 event pairs, 6 based on Foata normal form. 1/284 useless extension candidates. Maximal degree in co-relation 331. Up to 27 conditions per place. [2024-11-10 14:29:01,926 INFO L140 encePairwiseOnDemand]: 181/184 looper letters, 10 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2024-11-10 14:29:01,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 181 transitions, 388 flow [2024-11-10 14:29:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:29:01,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:29:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2024-11-10 14:29:01,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.947463768115942 [2024-11-10 14:29:01,931 INFO L175 Difference]: Start difference. First operand has 181 places, 180 transitions, 362 flow. Second operand 3 states and 523 transitions. [2024-11-10 14:29:01,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 181 transitions, 388 flow [2024-11-10 14:29:01,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 181 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:01,940 INFO L231 Difference]: Finished difference. Result has 184 places, 181 transitions, 374 flow [2024-11-10 14:29:01,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=184, PETRI_TRANSITIONS=181} [2024-11-10 14:29:01,941 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 3 predicate places. [2024-11-10 14:29:01,941 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 181 transitions, 374 flow [2024-11-10 14:29:01,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-10 14:29:01,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:01,943 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-10 14:29:01,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:29:01,943 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:01,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash -310282791, now seen corresponding path program 1 times [2024-11-10 14:29:01,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:01,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973678357] [2024-11-10 14:29:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:01,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:02,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:02,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973678357] [2024-11-10 14:29:02,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973678357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:02,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616224913] [2024-11-10 14:29:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:02,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:02,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:02,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:02,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:29:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:02,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 14:29:02,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:29:02,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:29:02,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616224913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:02,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:29:02,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-10 14:29:02,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013925511] [2024-11-10 14:29:02,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:02,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:29:02,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:02,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:29:02,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:02,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 184 [2024-11-10 14:29:02,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 181 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-10 14:29:02,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:02,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 184 [2024-11-10 14:29:02,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:02,464 INFO L124 PetriNetUnfolderBase]: 29/473 cut-off events. [2024-11-10 14:29:02,464 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:29:02,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 473 events. 29/473 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1612 event pairs, 8 based on Foata normal form. 3/444 useless extension candidates. Maximal degree in co-relation 536. Up to 39 conditions per place. [2024-11-10 14:29:02,470 INFO L140 encePairwiseOnDemand]: 181/184 looper letters, 14 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2024-11-10 14:29:02,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 186 transitions, 416 flow [2024-11-10 14:29:02,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:29:02,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:29:02,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2024-11-10 14:29:02,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9547101449275363 [2024-11-10 14:29:02,473 INFO L175 Difference]: Start difference. First operand has 184 places, 181 transitions, 374 flow. Second operand 3 states and 527 transitions. [2024-11-10 14:29:02,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 186 transitions, 416 flow [2024-11-10 14:29:02,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 186 transitions, 414 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:02,481 INFO L231 Difference]: Finished difference. Result has 186 places, 182 transitions, 384 flow [2024-11-10 14:29:02,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=186, PETRI_TRANSITIONS=182} [2024-11-10 14:29:02,482 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 5 predicate places. [2024-11-10 14:29:02,483 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 182 transitions, 384 flow [2024-11-10 14:29:02,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-10 14:29:02,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:02,483 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-10 14:29:02,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:29:02,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:02,685 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:02,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:02,685 INFO L85 PathProgramCache]: Analyzing trace with hash -150024421, now seen corresponding path program 1 times [2024-11-10 14:29:02,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:02,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359903980] [2024-11-10 14:29:02,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:02,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:02,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:02,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:02,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359903980] [2024-11-10 14:29:02,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359903980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:02,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741237140] [2024-11-10 14:29:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:02,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:02,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:02,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:02,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:29:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:02,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:29:02,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:03,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:03,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741237140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:03,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:03,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:29:03,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282459699] [2024-11-10 14:29:03,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:03,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:29:03,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:03,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:29:03,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:29:03,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 184 [2024-11-10 14:29:03,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 182 transitions, 384 flow. Second operand has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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) [2024-11-10 14:29:03,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:03,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 184 [2024-11-10 14:29:03,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:03,259 INFO L124 PetriNetUnfolderBase]: 18/421 cut-off events. [2024-11-10 14:29:03,259 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:29:03,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 421 events. 18/421 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1073 event pairs, 10 based on Foata normal form. 2/395 useless extension candidates. Maximal degree in co-relation 483. Up to 39 conditions per place. [2024-11-10 14:29:03,262 INFO L140 encePairwiseOnDemand]: 178/184 looper letters, 14 selfloop transitions, 9 changer transitions 0/190 dead transitions. [2024-11-10 14:29:03,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 190 transitions, 448 flow [2024-11-10 14:29:03,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:03,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:03,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1528 transitions. [2024-11-10 14:29:03,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9227053140096618 [2024-11-10 14:29:03,284 INFO L175 Difference]: Start difference. First operand has 186 places, 182 transitions, 384 flow. Second operand 9 states and 1528 transitions. [2024-11-10 14:29:03,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 190 transitions, 448 flow [2024-11-10 14:29:03,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 190 transitions, 446 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:03,288 INFO L231 Difference]: Finished difference. Result has 196 places, 188 transitions, 432 flow [2024-11-10 14:29:03,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=432, PETRI_PLACES=196, PETRI_TRANSITIONS=188} [2024-11-10 14:29:03,290 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 15 predicate places. [2024-11-10 14:29:03,291 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 188 transitions, 432 flow [2024-11-10 14:29:03,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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) [2024-11-10 14:29:03,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:03,292 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-10 14:29:03,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:03,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 14:29:03,493 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:03,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1032113991, now seen corresponding path program 2 times [2024-11-10 14:29:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:03,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88151525] [2024-11-10 14:29:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:03,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:03,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88151525] [2024-11-10 14:29:03,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88151525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:03,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859687926] [2024-11-10 14:29:03,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:29:03,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:03,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:03,704 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:03,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:29:03,804 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:29:03,804 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:29:03,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:29:03,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:03,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 14:29:03,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-10 14:29:03,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:03,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-10 14:29:03,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:03,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-10 14:29:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 14:29:03,987 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:29:03,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859687926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:03,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:29:03,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-10 14:29:03,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423687858] [2024-11-10 14:29:03,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:03,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:03,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:03,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:03,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:04,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:04,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 188 transitions, 432 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2024-11-10 14:29:04,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:04,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:04,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:04,473 INFO L124 PetriNetUnfolderBase]: 319/1533 cut-off events. [2024-11-10 14:29:04,473 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:29:04,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2217 conditions, 1533 events. 319/1533 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9887 event pairs, 148 based on Foata normal form. 0/1443 useless extension candidates. Maximal degree in co-relation 2209. Up to 516 conditions per place. [2024-11-10 14:29:04,483 INFO L140 encePairwiseOnDemand]: 173/184 looper letters, 34 selfloop transitions, 22 changer transitions 0/217 dead transitions. [2024-11-10 14:29:04,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 217 transitions, 602 flow [2024-11-10 14:29:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:04,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:04,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 981 transitions. [2024-11-10 14:29:04,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8885869565217391 [2024-11-10 14:29:04,487 INFO L175 Difference]: Start difference. First operand has 196 places, 188 transitions, 432 flow. Second operand 6 states and 981 transitions. [2024-11-10 14:29:04,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 217 transitions, 602 flow [2024-11-10 14:29:04,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 217 transitions, 596 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:04,491 INFO L231 Difference]: Finished difference. Result has 205 places, 209 transitions, 576 flow [2024-11-10 14:29:04,492 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=205, PETRI_TRANSITIONS=209} [2024-11-10 14:29:04,492 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 24 predicate places. [2024-11-10 14:29:04,492 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 209 transitions, 576 flow [2024-11-10 14:29:04,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2024-11-10 14:29:04,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:04,493 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-10 14:29:04,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:04,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:04,694 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:04,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:04,695 INFO L85 PathProgramCache]: Analyzing trace with hash -671055809, now seen corresponding path program 1 times [2024-11-10 14:29:04,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:04,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922658484] [2024-11-10 14:29:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:04,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,881 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:04,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922658484] [2024-11-10 14:29:04,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922658484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:04,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140503827] [2024-11-10 14:29:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:04,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:04,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:04,884 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:04,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:29:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:29:04,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:05,019 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:05,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:05,126 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:05,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140503827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:05,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:05,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 14:29:05,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309323538] [2024-11-10 14:29:05,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:05,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:29:05,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:05,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:29:05,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:29:05,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 184 [2024-11-10 14:29:05,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 209 transitions, 576 flow. Second operand has 18 states, 18 states have (on average 169.0) internal successors, (3042), 18 states have internal predecessors, (3042), 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) [2024-11-10 14:29:05,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:05,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 184 [2024-11-10 14:29:05,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:05,510 INFO L124 PetriNetUnfolderBase]: 112/1057 cut-off events. [2024-11-10 14:29:05,510 INFO L125 PetriNetUnfolderBase]: For 110/116 co-relation queries the response was YES. [2024-11-10 14:29:05,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1536 conditions, 1057 events. 112/1057 cut-off events. For 110/116 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5256 event pairs, 20 based on Foata normal form. 4/993 useless extension candidates. Maximal degree in co-relation 1523. Up to 125 conditions per place. [2024-11-10 14:29:05,516 INFO L140 encePairwiseOnDemand]: 178/184 looper letters, 18 selfloop transitions, 21 changer transitions 0/227 dead transitions. [2024-11-10 14:29:05,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 227 transitions, 742 flow [2024-11-10 14:29:05,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:29:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 14:29:05,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3550 transitions. [2024-11-10 14:29:05,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9187370600414079 [2024-11-10 14:29:05,526 INFO L175 Difference]: Start difference. First operand has 205 places, 209 transitions, 576 flow. Second operand 21 states and 3550 transitions. [2024-11-10 14:29:05,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 227 transitions, 742 flow [2024-11-10 14:29:05,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 227 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:05,535 INFO L231 Difference]: Finished difference. Result has 230 places, 222 transitions, 706 flow [2024-11-10 14:29:05,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=706, PETRI_PLACES=230, PETRI_TRANSITIONS=222} [2024-11-10 14:29:05,537 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 49 predicate places. [2024-11-10 14:29:05,537 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 222 transitions, 706 flow [2024-11-10 14:29:05,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 169.0) internal successors, (3042), 18 states have internal predecessors, (3042), 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) [2024-11-10 14:29:05,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:05,539 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-10 14:29:05,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:29:05,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:05,740 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:05,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash -433435525, now seen corresponding path program 2 times [2024-11-10 14:29:05,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:05,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250920971] [2024-11-10 14:29:05,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:05,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:06,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:06,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250920971] [2024-11-10 14:29:06,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250920971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:06,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070826421] [2024-11-10 14:29:06,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:29:06,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:06,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:06,098 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:06,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:29:06,208 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:29:06,209 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:29:06,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 14:29:06,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:06,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 14:29:06,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-10 14:29:06,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:06,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-10 14:29:06,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:06,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-10 14:29:06,365 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-10 14:29:06,365 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:29:06,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070826421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:06,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:29:06,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:29:06,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145694313] [2024-11-10 14:29:06,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:06,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:06,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:06,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:06,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:29:06,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:06,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 222 transitions, 706 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2024-11-10 14:29:06,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:06,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:06,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:07,012 INFO L124 PetriNetUnfolderBase]: 461/2321 cut-off events. [2024-11-10 14:29:07,013 INFO L125 PetriNetUnfolderBase]: For 419/449 co-relation queries the response was YES. [2024-11-10 14:29:07,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3917 conditions, 2321 events. 461/2321 cut-off events. For 419/449 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 16707 event pairs, 172 based on Foata normal form. 5/2194 useless extension candidates. Maximal degree in co-relation 3899. Up to 758 conditions per place. [2024-11-10 14:29:07,027 INFO L140 encePairwiseOnDemand]: 169/184 looper letters, 51 selfloop transitions, 46 changer transitions 0/275 dead transitions. [2024-11-10 14:29:07,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 275 transitions, 1048 flow [2024-11-10 14:29:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 997 transitions. [2024-11-10 14:29:07,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9030797101449275 [2024-11-10 14:29:07,030 INFO L175 Difference]: Start difference. First operand has 230 places, 222 transitions, 706 flow. Second operand 6 states and 997 transitions. [2024-11-10 14:29:07,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 275 transitions, 1048 flow [2024-11-10 14:29:07,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 275 transitions, 1024 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 14:29:07,037 INFO L231 Difference]: Finished difference. Result has 234 places, 267 transitions, 1036 flow [2024-11-10 14:29:07,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1036, PETRI_PLACES=234, PETRI_TRANSITIONS=267} [2024-11-10 14:29:07,038 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 53 predicate places. [2024-11-10 14:29:07,038 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 267 transitions, 1036 flow [2024-11-10 14:29:07,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2024-11-10 14:29:07,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:07,039 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:07,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:07,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:07,244 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:07,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:07,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1981638408, now seen corresponding path program 1 times [2024-11-10 14:29:07,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:07,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237977261] [2024-11-10 14:29:07,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:07,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:07,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:07,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237977261] [2024-11-10 14:29:07,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237977261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:07,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835760723] [2024-11-10 14:29:07,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:07,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:07,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:07,564 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:07,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 14:29:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:07,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:29:07,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:07,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:07,989 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:07,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835760723] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:07,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:07,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-10 14:29:07,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313413397] [2024-11-10 14:29:07,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:07,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:29:07,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:07,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:29:07,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:29:08,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 184 [2024-11-10 14:29:08,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 267 transitions, 1036 flow. Second operand has 23 states, 23 states have (on average 169.08695652173913) internal successors, (3889), 23 states have internal predecessors, (3889), 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) [2024-11-10 14:29:08,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:08,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 184 [2024-11-10 14:29:08,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:08,577 INFO L124 PetriNetUnfolderBase]: 252/1670 cut-off events. [2024-11-10 14:29:08,577 INFO L125 PetriNetUnfolderBase]: For 637/672 co-relation queries the response was YES. [2024-11-10 14:29:08,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3032 conditions, 1670 events. 252/1670 cut-off events. For 637/672 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10817 event pairs, 36 based on Foata normal form. 13/1601 useless extension candidates. Maximal degree in co-relation 3009. Up to 202 conditions per place. [2024-11-10 14:29:08,591 INFO L140 encePairwiseOnDemand]: 178/184 looper letters, 21 selfloop transitions, 30 changer transitions 0/284 dead transitions. [2024-11-10 14:29:08,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 284 transitions, 1260 flow [2024-11-10 14:29:08,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 14:29:08,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 14:29:08,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5064 transitions. [2024-11-10 14:29:08,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173913043478261 [2024-11-10 14:29:08,601 INFO L175 Difference]: Start difference. First operand has 234 places, 267 transitions, 1036 flow. Second operand 30 states and 5064 transitions. [2024-11-10 14:29:08,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 284 transitions, 1260 flow [2024-11-10 14:29:08,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 284 transitions, 1260 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:08,611 INFO L231 Difference]: Finished difference. Result has 267 places, 277 transitions, 1188 flow [2024-11-10 14:29:08,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1188, PETRI_PLACES=267, PETRI_TRANSITIONS=277} [2024-11-10 14:29:08,613 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 86 predicate places. [2024-11-10 14:29:08,613 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 277 transitions, 1188 flow [2024-11-10 14:29:08,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 169.08695652173913) internal successors, (3889), 23 states have internal predecessors, (3889), 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) [2024-11-10 14:29:08,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:08,614 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:08,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 14:29:08,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:08,816 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:08,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:08,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1606839531, now seen corresponding path program 2 times [2024-11-10 14:29:08,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:08,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139346171] [2024-11-10 14:29:08,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:08,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:09,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:09,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139346171] [2024-11-10 14:29:09,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139346171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:09,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:09,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:29:09,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986409391] [2024-11-10 14:29:09,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:09,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:09,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:09,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:09,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 184 [2024-11-10 14:29:09,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 277 transitions, 1188 flow. Second operand has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 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) [2024-11-10 14:29:09,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:09,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 184 [2024-11-10 14:29:09,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:10,113 INFO L124 PetriNetUnfolderBase]: 918/3269 cut-off events. [2024-11-10 14:29:10,114 INFO L125 PetriNetUnfolderBase]: For 1950/2042 co-relation queries the response was YES. [2024-11-10 14:29:10,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7395 conditions, 3269 events. 918/3269 cut-off events. For 1950/2042 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 23261 event pairs, 283 based on Foata normal form. 19/3132 useless extension candidates. Maximal degree in co-relation 7368. Up to 1571 conditions per place. [2024-11-10 14:29:10,139 INFO L140 encePairwiseOnDemand]: 169/184 looper letters, 100 selfloop transitions, 57 changer transitions 0/332 dead transitions. [2024-11-10 14:29:10,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 332 transitions, 1746 flow [2024-11-10 14:29:10,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 947 transitions. [2024-11-10 14:29:10,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8577898550724637 [2024-11-10 14:29:10,142 INFO L175 Difference]: Start difference. First operand has 267 places, 277 transitions, 1188 flow. Second operand 6 states and 947 transitions. [2024-11-10 14:29:10,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 332 transitions, 1746 flow [2024-11-10 14:29:10,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 332 transitions, 1700 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-10 14:29:10,158 INFO L231 Difference]: Finished difference. Result has 259 places, 324 transitions, 1640 flow [2024-11-10 14:29:10,159 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1142, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1640, PETRI_PLACES=259, PETRI_TRANSITIONS=324} [2024-11-10 14:29:10,160 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 78 predicate places. [2024-11-10 14:29:10,160 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 324 transitions, 1640 flow [2024-11-10 14:29:10,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 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) [2024-11-10 14:29:10,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:10,161 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:10,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:29:10,163 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:10,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:10,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1419476852, now seen corresponding path program 1 times [2024-11-10 14:29:10,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:10,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978771356] [2024-11-10 14:29:10,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:10,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:10,679 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:10,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:10,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978771356] [2024-11-10 14:29:10,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978771356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:10,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:10,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:29:10,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592086426] [2024-11-10 14:29:10,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:10,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:10,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:10,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:10,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:10,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 184 [2024-11-10 14:29:10,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 324 transitions, 1640 flow. Second operand has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 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) [2024-11-10 14:29:10,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:10,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 184 [2024-11-10 14:29:10,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:11,891 INFO L124 PetriNetUnfolderBase]: 1259/4456 cut-off events. [2024-11-10 14:29:11,891 INFO L125 PetriNetUnfolderBase]: For 4896/5030 co-relation queries the response was YES. [2024-11-10 14:29:11,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11336 conditions, 4456 events. 1259/4456 cut-off events. For 4896/5030 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 34440 event pairs, 313 based on Foata normal form. 40/4315 useless extension candidates. Maximal degree in co-relation 11304. Up to 2094 conditions per place. [2024-11-10 14:29:11,935 INFO L140 encePairwiseOnDemand]: 161/184 looper letters, 137 selfloop transitions, 103 changer transitions 0/417 dead transitions. [2024-11-10 14:29:11,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 417 transitions, 2570 flow [2024-11-10 14:29:11,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:11,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2024-11-10 14:29:11,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8867753623188406 [2024-11-10 14:29:11,939 INFO L175 Difference]: Start difference. First operand has 259 places, 324 transitions, 1640 flow. Second operand 6 states and 979 transitions. [2024-11-10 14:29:11,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 417 transitions, 2570 flow [2024-11-10 14:29:11,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 417 transitions, 2506 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:11,964 INFO L231 Difference]: Finished difference. Result has 269 places, 409 transitions, 2492 flow [2024-11-10 14:29:11,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1582, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2492, PETRI_PLACES=269, PETRI_TRANSITIONS=409} [2024-11-10 14:29:11,966 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 88 predicate places. [2024-11-10 14:29:11,966 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 409 transitions, 2492 flow [2024-11-10 14:29:11,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 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) [2024-11-10 14:29:11,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:11,967 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:11,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:29:11,967 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:11,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:11,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1595017595, now seen corresponding path program 1 times [2024-11-10 14:29:11,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:11,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419460809] [2024-11-10 14:29:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:11,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:12,490 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:12,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:12,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419460809] [2024-11-10 14:29:12,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419460809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:12,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:12,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:12,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658731239] [2024-11-10 14:29:12,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:12,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:12,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:12,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:13,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:13,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 409 transitions, 2492 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:13,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:13,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:13,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:14,813 INFO L124 PetriNetUnfolderBase]: 1208/4710 cut-off events. [2024-11-10 14:29:14,814 INFO L125 PetriNetUnfolderBase]: For 6141/6291 co-relation queries the response was YES. [2024-11-10 14:29:14,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12863 conditions, 4710 events. 1208/4710 cut-off events. For 6141/6291 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 38922 event pairs, 160 based on Foata normal form. 37/4681 useless extension candidates. Maximal degree in co-relation 12826. Up to 685 conditions per place. [2024-11-10 14:29:14,863 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 71 selfloop transitions, 15 changer transitions 0/467 dead transitions. [2024-11-10 14:29:14,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 467 transitions, 2780 flow [2024-11-10 14:29:14,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1474 transitions. [2024-11-10 14:29:14,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8900966183574879 [2024-11-10 14:29:14,867 INFO L175 Difference]: Start difference. First operand has 269 places, 409 transitions, 2492 flow. Second operand 9 states and 1474 transitions. [2024-11-10 14:29:14,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 467 transitions, 2780 flow [2024-11-10 14:29:14,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 467 transitions, 2666 flow, removed 57 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:14,915 INFO L231 Difference]: Finished difference. Result has 284 places, 423 transitions, 2490 flow [2024-11-10 14:29:14,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2378, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2490, PETRI_PLACES=284, PETRI_TRANSITIONS=423} [2024-11-10 14:29:14,916 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 103 predicate places. [2024-11-10 14:29:14,917 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 423 transitions, 2490 flow [2024-11-10 14:29:14,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:14,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:14,918 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:14,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:29:14,918 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:14,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:14,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1865817645, now seen corresponding path program 2 times [2024-11-10 14:29:14,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:14,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350081687] [2024-11-10 14:29:14,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:14,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:15,524 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:15,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:15,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350081687] [2024-11-10 14:29:15,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350081687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:15,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:15,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:15,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196228666] [2024-11-10 14:29:15,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:15,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:15,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:15,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:15,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:16,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:16,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 423 transitions, 2490 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:16,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:16,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:16,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:18,621 INFO L124 PetriNetUnfolderBase]: 2439/9125 cut-off events. [2024-11-10 14:29:18,622 INFO L125 PetriNetUnfolderBase]: For 12373/12703 co-relation queries the response was YES. [2024-11-10 14:29:18,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26000 conditions, 9125 events. 2439/9125 cut-off events. For 12373/12703 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 85744 event pairs, 305 based on Foata normal form. 99/9081 useless extension candidates. Maximal degree in co-relation 25955. Up to 1448 conditions per place. [2024-11-10 14:29:18,705 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 111 selfloop transitions, 20 changer transitions 2/514 dead transitions. [2024-11-10 14:29:18,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 514 transitions, 3172 flow [2024-11-10 14:29:18,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:18,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1474 transitions. [2024-11-10 14:29:18,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8900966183574879 [2024-11-10 14:29:18,709 INFO L175 Difference]: Start difference. First operand has 284 places, 423 transitions, 2490 flow. Second operand 9 states and 1474 transitions. [2024-11-10 14:29:18,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 514 transitions, 3172 flow [2024-11-10 14:29:18,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 514 transitions, 3162 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:18,774 INFO L231 Difference]: Finished difference. Result has 298 places, 440 transitions, 2669 flow [2024-11-10 14:29:18,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2488, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2669, PETRI_PLACES=298, PETRI_TRANSITIONS=440} [2024-11-10 14:29:18,775 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 117 predicate places. [2024-11-10 14:29:18,775 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 440 transitions, 2669 flow [2024-11-10 14:29:18,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:18,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:18,776 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:18,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:29:18,777 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:18,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:18,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1872565533, now seen corresponding path program 3 times [2024-11-10 14:29:18,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:18,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419726740] [2024-11-10 14:29:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:18,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:19,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:19,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419726740] [2024-11-10 14:29:19,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419726740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:19,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:19,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:19,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183382359] [2024-11-10 14:29:19,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:19,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:19,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:19,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:19,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:20,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:20,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 440 transitions, 2669 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:20,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:20,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:20,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:22,667 INFO L124 PetriNetUnfolderBase]: 2758/10128 cut-off events. [2024-11-10 14:29:22,667 INFO L125 PetriNetUnfolderBase]: For 16122/16578 co-relation queries the response was YES. [2024-11-10 14:29:22,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30349 conditions, 10128 events. 2758/10128 cut-off events. For 16122/16578 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 95811 event pairs, 316 based on Foata normal form. 107/10065 useless extension candidates. Maximal degree in co-relation 30296. Up to 1569 conditions per place. [2024-11-10 14:29:22,754 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 121 selfloop transitions, 22 changer transitions 0/524 dead transitions. [2024-11-10 14:29:22,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 524 transitions, 3453 flow [2024-11-10 14:29:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:22,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:22,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2024-11-10 14:29:22,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8931159420289855 [2024-11-10 14:29:22,758 INFO L175 Difference]: Start difference. First operand has 298 places, 440 transitions, 2669 flow. Second operand 9 states and 1479 transitions. [2024-11-10 14:29:22,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 524 transitions, 3453 flow [2024-11-10 14:29:22,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 524 transitions, 3415 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:22,866 INFO L231 Difference]: Finished difference. Result has 311 places, 452 transitions, 2838 flow [2024-11-10 14:29:22,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2655, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2838, PETRI_PLACES=311, PETRI_TRANSITIONS=452} [2024-11-10 14:29:22,867 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 130 predicate places. [2024-11-10 14:29:22,867 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 452 transitions, 2838 flow [2024-11-10 14:29:22,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:22,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:22,868 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:22,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:29:22,869 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:22,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1962304313, now seen corresponding path program 4 times [2024-11-10 14:29:22,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:22,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276852199] [2024-11-10 14:29:22,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:23,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:23,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276852199] [2024-11-10 14:29:23,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276852199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:23,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:23,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:23,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245259954] [2024-11-10 14:29:23,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:23,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:23,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:23,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:23,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:24,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:24,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 452 transitions, 2838 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:24,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:24,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:24,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:27,187 INFO L124 PetriNetUnfolderBase]: 3033/11207 cut-off events. [2024-11-10 14:29:27,187 INFO L125 PetriNetUnfolderBase]: For 19897/20418 co-relation queries the response was YES. [2024-11-10 14:29:27,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34295 conditions, 11207 events. 3033/11207 cut-off events. For 19897/20418 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 108207 event pairs, 326 based on Foata normal form. 121/11171 useless extension candidates. Maximal degree in co-relation 34236. Up to 1831 conditions per place. [2024-11-10 14:29:27,286 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 132 selfloop transitions, 27 changer transitions 2/542 dead transitions. [2024-11-10 14:29:27,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 542 transitions, 3795 flow [2024-11-10 14:29:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:27,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:27,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2024-11-10 14:29:27,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8931159420289855 [2024-11-10 14:29:27,291 INFO L175 Difference]: Start difference. First operand has 311 places, 452 transitions, 2838 flow. Second operand 9 states and 1479 transitions. [2024-11-10 14:29:27,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 542 transitions, 3795 flow [2024-11-10 14:29:27,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 542 transitions, 3716 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-10 14:29:27,429 INFO L231 Difference]: Finished difference. Result has 321 places, 464 transitions, 3017 flow [2024-11-10 14:29:27,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2812, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3017, PETRI_PLACES=321, PETRI_TRANSITIONS=464} [2024-11-10 14:29:27,431 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 140 predicate places. [2024-11-10 14:29:27,431 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 464 transitions, 3017 flow [2024-11-10 14:29:27,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:27,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:27,433 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:27,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:29:27,433 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:27,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:27,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1016964015, now seen corresponding path program 5 times [2024-11-10 14:29:27,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:27,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666326846] [2024-11-10 14:29:27,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:27,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:27,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:27,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666326846] [2024-11-10 14:29:27,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666326846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:27,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:27,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:27,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654490131] [2024-11-10 14:29:27,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:27,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:27,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:27,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:27,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:29,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:29,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 464 transitions, 3017 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:29,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:29,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:29,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:31,391 INFO L124 PetriNetUnfolderBase]: 3385/12340 cut-off events. [2024-11-10 14:29:31,391 INFO L125 PetriNetUnfolderBase]: For 24940/25531 co-relation queries the response was YES. [2024-11-10 14:29:31,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38762 conditions, 12340 events. 3385/12340 cut-off events. For 24940/25531 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 121082 event pairs, 347 based on Foata normal form. 114/12264 useless extension candidates. Maximal degree in co-relation 38698. Up to 1962 conditions per place. [2024-11-10 14:29:31,488 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 135 selfloop transitions, 29 changer transitions 0/545 dead transitions. [2024-11-10 14:29:31,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 545 transitions, 3996 flow [2024-11-10 14:29:31,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:31,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:31,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1482 transitions. [2024-11-10 14:29:31,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.894927536231884 [2024-11-10 14:29:31,491 INFO L175 Difference]: Start difference. First operand has 321 places, 464 transitions, 3017 flow. Second operand 9 states and 1482 transitions. [2024-11-10 14:29:31,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 545 transitions, 3996 flow [2024-11-10 14:29:31,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 545 transitions, 3905 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-10 14:29:31,648 INFO L231 Difference]: Finished difference. Result has 332 places, 479 transitions, 3255 flow [2024-11-10 14:29:31,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2976, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3255, PETRI_PLACES=332, PETRI_TRANSITIONS=479} [2024-11-10 14:29:31,650 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 151 predicate places. [2024-11-10 14:29:31,650 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 479 transitions, 3255 flow [2024-11-10 14:29:31,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:31,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:31,651 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:31,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:29:31,652 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:31,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:31,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1013101621, now seen corresponding path program 6 times [2024-11-10 14:29:31,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:31,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922266908] [2024-11-10 14:29:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:31,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:32,103 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:32,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:32,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922266908] [2024-11-10 14:29:32,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922266908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:32,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:32,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:32,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574472926] [2024-11-10 14:29:32,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:32,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:32,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:32,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:32,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:33,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:33,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 479 transitions, 3255 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:33,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:33,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:33,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:35,631 INFO L124 PetriNetUnfolderBase]: 3685/13463 cut-off events. [2024-11-10 14:29:35,632 INFO L125 PetriNetUnfolderBase]: For 30982/31643 co-relation queries the response was YES. [2024-11-10 14:29:35,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43245 conditions, 13463 events. 3685/13463 cut-off events. For 30982/31643 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 135089 event pairs, 361 based on Foata normal form. 122/13407 useless extension candidates. Maximal degree in co-relation 43175. Up to 2207 conditions per place. [2024-11-10 14:29:35,902 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 149 selfloop transitions, 34 changer transitions 1/565 dead transitions. [2024-11-10 14:29:35,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 565 transitions, 4386 flow [2024-11-10 14:29:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:35,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:35,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1482 transitions. [2024-11-10 14:29:35,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.894927536231884 [2024-11-10 14:29:35,905 INFO L175 Difference]: Start difference. First operand has 332 places, 479 transitions, 3255 flow. Second operand 9 states and 1482 transitions. [2024-11-10 14:29:35,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 565 transitions, 4386 flow [2024-11-10 14:29:36,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 565 transitions, 4290 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-10 14:29:36,092 INFO L231 Difference]: Finished difference. Result has 344 places, 494 transitions, 3502 flow [2024-11-10 14:29:36,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=3196, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3502, PETRI_PLACES=344, PETRI_TRANSITIONS=494} [2024-11-10 14:29:36,093 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 163 predicate places. [2024-11-10 14:29:36,094 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 494 transitions, 3502 flow [2024-11-10 14:29:36,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:36,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:36,095 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:36,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:29:36,095 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:36,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:36,096 INFO L85 PathProgramCache]: Analyzing trace with hash -605375345, now seen corresponding path program 7 times [2024-11-10 14:29:36,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:36,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318422189] [2024-11-10 14:29:36,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:36,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:36,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:36,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318422189] [2024-11-10 14:29:36,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318422189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:36,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:36,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:36,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800748650] [2024-11-10 14:29:36,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:36,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:36,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:36,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:36,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:37,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:37,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 494 transitions, 3502 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:37,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:37,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:37,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:40,407 INFO L124 PetriNetUnfolderBase]: 4029/14658 cut-off events. [2024-11-10 14:29:40,407 INFO L125 PetriNetUnfolderBase]: For 39276/40001 co-relation queries the response was YES. [2024-11-10 14:29:40,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48457 conditions, 14658 events. 4029/14658 cut-off events. For 39276/40001 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 149804 event pairs, 437 based on Foata normal form. 111/14564 useless extension candidates. Maximal degree in co-relation 48381. Up to 2358 conditions per place. [2024-11-10 14:29:40,538 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 148 selfloop transitions, 36 changer transitions 0/565 dead transitions. [2024-11-10 14:29:40,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 565 transitions, 4600 flow [2024-11-10 14:29:40,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:40,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:40,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1484 transitions. [2024-11-10 14:29:40,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8961352657004831 [2024-11-10 14:29:40,540 INFO L175 Difference]: Start difference. First operand has 344 places, 494 transitions, 3502 flow. Second operand 9 states and 1484 transitions. [2024-11-10 14:29:40,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 565 transitions, 4600 flow [2024-11-10 14:29:40,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 565 transitions, 4500 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-10 14:29:40,746 INFO L231 Difference]: Finished difference. Result has 357 places, 513 transitions, 3853 flow [2024-11-10 14:29:40,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=3424, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3853, PETRI_PLACES=357, PETRI_TRANSITIONS=513} [2024-11-10 14:29:40,747 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 176 predicate places. [2024-11-10 14:29:40,747 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 513 transitions, 3853 flow [2024-11-10 14:29:40,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:40,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:40,748 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:40,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 14:29:40,748 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:40,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:40,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1506036541, now seen corresponding path program 8 times [2024-11-10 14:29:40,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:40,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740169958] [2024-11-10 14:29:40,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:40,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:41,238 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:41,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:41,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740169958] [2024-11-10 14:29:41,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740169958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:41,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:41,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:41,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860667985] [2024-11-10 14:29:41,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:41,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:41,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:41,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:41,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:41,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:41,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 513 transitions, 3853 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:41,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:41,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:41,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:45,003 INFO L124 PetriNetUnfolderBase]: 4647/16759 cut-off events. [2024-11-10 14:29:45,004 INFO L125 PetriNetUnfolderBase]: For 50445/51314 co-relation queries the response was YES. [2024-11-10 14:29:45,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56525 conditions, 16759 events. 4647/16759 cut-off events. For 50445/51314 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 176712 event pairs, 452 based on Foata normal form. 140/16679 useless extension candidates. Maximal degree in co-relation 56442. Up to 2767 conditions per place. [2024-11-10 14:29:45,186 INFO L140 encePairwiseOnDemand]: 169/184 looper letters, 169 selfloop transitions, 45 changer transitions 0/595 dead transitions. [2024-11-10 14:29:45,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 595 transitions, 5158 flow [2024-11-10 14:29:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:45,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:45,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1486 transitions. [2024-11-10 14:29:45,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8973429951690821 [2024-11-10 14:29:45,188 INFO L175 Difference]: Start difference. First operand has 357 places, 513 transitions, 3853 flow. Second operand 9 states and 1486 transitions. [2024-11-10 14:29:45,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 595 transitions, 5158 flow [2024-11-10 14:29:45,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 595 transitions, 5054 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:45,597 INFO L231 Difference]: Finished difference. Result has 372 places, 531 transitions, 4207 flow [2024-11-10 14:29:45,598 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=3749, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4207, PETRI_PLACES=372, PETRI_TRANSITIONS=531} [2024-11-10 14:29:45,598 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 191 predicate places. [2024-11-10 14:29:45,598 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 531 transitions, 4207 flow [2024-11-10 14:29:45,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:45,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:45,599 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:45,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 14:29:45,599 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:45,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:45,600 INFO L85 PathProgramCache]: Analyzing trace with hash -656885077, now seen corresponding path program 9 times [2024-11-10 14:29:45,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:45,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395038873] [2024-11-10 14:29:45,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:45,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:45,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:45,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395038873] [2024-11-10 14:29:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395038873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:45,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:45,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:45,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972014111] [2024-11-10 14:29:45,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:45,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:45,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:45,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:45,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:46,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:46,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 531 transitions, 4207 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:46,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:46,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:46,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:50,387 INFO L124 PetriNetUnfolderBase]: 5222/18714 cut-off events. [2024-11-10 14:29:50,387 INFO L125 PetriNetUnfolderBase]: For 62235/63233 co-relation queries the response was YES. [2024-11-10 14:29:50,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64555 conditions, 18714 events. 5222/18714 cut-off events. For 62235/63233 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 202621 event pairs, 491 based on Foata normal form. 158/18639 useless extension candidates. Maximal degree in co-relation 64464. Up to 3099 conditions per place. [2024-11-10 14:29:50,565 INFO L140 encePairwiseOnDemand]: 169/184 looper letters, 184 selfloop transitions, 46 changer transitions 0/611 dead transitions. [2024-11-10 14:29:50,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 611 transitions, 5466 flow [2024-11-10 14:29:50,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:50,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:50,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1486 transitions. [2024-11-10 14:29:50,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8973429951690821 [2024-11-10 14:29:50,567 INFO L175 Difference]: Start difference. First operand has 372 places, 531 transitions, 4207 flow. Second operand 9 states and 1486 transitions. [2024-11-10 14:29:50,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 611 transitions, 5466 flow [2024-11-10 14:29:50,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 611 transitions, 5380 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:50,852 INFO L231 Difference]: Finished difference. Result has 386 places, 548 transitions, 4531 flow [2024-11-10 14:29:50,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=4121, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4531, PETRI_PLACES=386, PETRI_TRANSITIONS=548} [2024-11-10 14:29:50,853 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 205 predicate places. [2024-11-10 14:29:50,853 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 548 transitions, 4531 flow [2024-11-10 14:29:50,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:50,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:50,854 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:50,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 14:29:50,855 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:50,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:50,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1787994519, now seen corresponding path program 10 times [2024-11-10 14:29:50,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:50,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503963639] [2024-11-10 14:29:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:50,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:51,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:51,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503963639] [2024-11-10 14:29:51,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503963639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:51,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:51,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:51,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558359613] [2024-11-10 14:29:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:51,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:51,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:51,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:51,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:52,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:52,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 548 transitions, 4531 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:52,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:52,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:52,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:56,194 INFO L124 PetriNetUnfolderBase]: 5510/19634 cut-off events. [2024-11-10 14:29:56,195 INFO L125 PetriNetUnfolderBase]: For 70331/71406 co-relation queries the response was YES. [2024-11-10 14:29:56,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68706 conditions, 19634 events. 5510/19634 cut-off events. For 70331/71406 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 215089 event pairs, 522 based on Foata normal form. 176/19570 useless extension candidates. Maximal degree in co-relation 68608. Up to 3280 conditions per place. [2024-11-10 14:29:56,405 INFO L140 encePairwiseOnDemand]: 168/184 looper letters, 183 selfloop transitions, 53 changer transitions 0/617 dead transitions. [2024-11-10 14:29:56,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 617 transitions, 5833 flow [2024-11-10 14:29:56,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:56,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1488 transitions. [2024-11-10 14:29:56,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8985507246376812 [2024-11-10 14:29:56,407 INFO L175 Difference]: Start difference. First operand has 386 places, 548 transitions, 4531 flow. Second operand 9 states and 1488 transitions. [2024-11-10 14:29:56,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 617 transitions, 5833 flow [2024-11-10 14:29:56,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 617 transitions, 5680 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-10 14:29:56,797 INFO L231 Difference]: Finished difference. Result has 396 places, 562 transitions, 4810 flow [2024-11-10 14:29:56,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=4434, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4810, PETRI_PLACES=396, PETRI_TRANSITIONS=562} [2024-11-10 14:29:56,798 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 215 predicate places. [2024-11-10 14:29:56,798 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 562 transitions, 4810 flow [2024-11-10 14:29:56,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:56,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:56,799 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:56,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 14:29:56,799 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:29:56,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:56,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1273463121, now seen corresponding path program 11 times [2024-11-10 14:29:56,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:56,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473267000] [2024-11-10 14:29:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:56,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:57,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:57,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473267000] [2024-11-10 14:29:57,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473267000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:57,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:57,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:57,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332445851] [2024-11-10 14:29:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:57,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:57,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:57,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:58,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:29:58,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 562 transitions, 4810 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:29:58,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:58,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:29:58,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:01,860 INFO L124 PetriNetUnfolderBase]: 5507/19617 cut-off events. [2024-11-10 14:30:01,861 INFO L125 PetriNetUnfolderBase]: For 75100/76241 co-relation queries the response was YES. [2024-11-10 14:30:02,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69364 conditions, 19617 events. 5507/19617 cut-off events. For 75100/76241 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 214837 event pairs, 523 based on Foata normal form. 183/19562 useless extension candidates. Maximal degree in co-relation 69262. Up to 3289 conditions per place. [2024-11-10 14:30:02,357 INFO L140 encePairwiseOnDemand]: 169/184 looper letters, 186 selfloop transitions, 57 changer transitions 0/624 dead transitions. [2024-11-10 14:30:02,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 624 transitions, 6036 flow [2024-11-10 14:30:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:30:02,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:30:02,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1489 transitions. [2024-11-10 14:30:02,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8991545893719807 [2024-11-10 14:30:02,360 INFO L175 Difference]: Start difference. First operand has 396 places, 562 transitions, 4810 flow. Second operand 9 states and 1489 transitions. [2024-11-10 14:30:02,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 624 transitions, 6036 flow [2024-11-10 14:30:02,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 624 transitions, 5876 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-10 14:30:02,759 INFO L231 Difference]: Finished difference. Result has 405 places, 574 transitions, 5080 flow [2024-11-10 14:30:02,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=4674, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5080, PETRI_PLACES=405, PETRI_TRANSITIONS=574} [2024-11-10 14:30:02,759 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 224 predicate places. [2024-11-10 14:30:02,759 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 574 transitions, 5080 flow [2024-11-10 14:30:02,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:30:02,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:02,760 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:02,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 14:30:02,760 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:30:02,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:02,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1611858865, now seen corresponding path program 12 times [2024-11-10 14:30:02,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:02,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523596843] [2024-11-10 14:30:02,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:02,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:30:03,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:03,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523596843] [2024-11-10 14:30:03,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523596843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:03,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:03,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:30:03,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688506416] [2024-11-10 14:30:03,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:03,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:30:03,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:03,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:30:03,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:30:03,898 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 184 [2024-11-10 14:30:03,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 574 transitions, 5080 flow. Second operand has 9 states, 9 states have (on average 155.77777777777777) internal successors, (1402), 9 states have internal predecessors, (1402), 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) [2024-11-10 14:30:03,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:03,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 184 [2024-11-10 14:30:03,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand