./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:06:54,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:06:54,224 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:06:54,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:06:54,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:06:54,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:06:54,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:06:54,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:06:54,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:06:54,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:06:54,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:06:54,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:06:54,263 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:06:54,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:06:54,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:06:54,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:06:54,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:06:54,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:06:54,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:06:54,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:06:54,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:06:54,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:06:54,271 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:06:54,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:06:54,272 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:06:54,272 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:06:54,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:06:54,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:06:54,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:06:54,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:06:54,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:06:54,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:54,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:06:54,274 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:06:54,274 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:06:54,274 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:06:54,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:06:54,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:06:54,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:06:54,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:06:54,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:06:54,284 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2024-10-11 17:06:54,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:06:54,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:06:54,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:06:54,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:06:54,557 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:06:54,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2024-10-11 17:06:55,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:06:56,239 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:06:56,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2024-10-11 17:06:56,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/64ae803b1/8230f27e25c0427c835fe82c9e18b8dd/FLAG47ebad17e [2024-10-11 17:06:56,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/64ae803b1/8230f27e25c0427c835fe82c9e18b8dd [2024-10-11 17:06:56,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:06:56,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:06:56,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:56,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:06:56,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:06:56,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:56" (1/1) ... [2024-10-11 17:06:56,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394821fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:56, skipping insertion in model container [2024-10-11 17:06:56,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:56" (1/1) ... [2024-10-11 17:06:56,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:06:56,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:56,907 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:06:56,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:57,052 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:06:57,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57 WrapperNode [2024-10-11 17:06:57,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:57,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:57,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:06:57,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:06:57,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,139 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 177 [2024-10-11 17:06:57,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:57,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:06:57,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:06:57,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:06:57,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:06:57,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:06:57,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:06:57,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:06:57,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (1/1) ... [2024-10-11 17:06:57,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:57,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:57,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:06:57,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:06:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:06:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:06:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:06:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:06:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:06:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:06:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:06:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:06:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:06:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:06:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:06:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:06:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:06:57,295 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:06:57,447 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:06:57,448 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:06:57,960 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:06:57,961 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:06:58,013 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:06:58,013 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:06:58,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:58 BoogieIcfgContainer [2024-10-11 17:06:58,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:06:58,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:06:58,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:06:58,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:06:58,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:06:56" (1/3) ... [2024-10-11 17:06:58,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bef0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:58, skipping insertion in model container [2024-10-11 17:06:58,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:57" (2/3) ... [2024-10-11 17:06:58,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bef0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:58, skipping insertion in model container [2024-10-11 17:06:58,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:58" (3/3) ... [2024-10-11 17:06:58,023 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2024-10-11 17:06:58,039 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:06:58,040 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-10-11 17:06:58,040 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:06:58,125 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:06:58,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 276 transitions, 556 flow [2024-10-11 17:06:58,286 INFO L124 PetriNetUnfolderBase]: 0/275 cut-off events. [2024-10-11 17:06:58,287 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:06:58,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 275 events. 0/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 160 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-11 17:06:58,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 276 transitions, 556 flow [2024-10-11 17:06:58,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 275 transitions, 553 flow [2024-10-11 17:06:58,315 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:06:58,325 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;@68cca931, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:06:58,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-10-11 17:06:58,336 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:06:58,336 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-11 17:06:58,336 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:06:58,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:58,337 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] [2024-10-11 17:06:58,338 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:06:58,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:58,344 INFO L85 PathProgramCache]: Analyzing trace with hash -528824746, now seen corresponding path program 1 times [2024-10-11 17:06:58,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:58,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004192577] [2024-10-11 17:06:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:58,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:59,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:59,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004192577] [2024-10-11 17:06:59,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004192577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:59,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:59,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:06:59,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614079475] [2024-10-11 17:06:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:59,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:59,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:59,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:59,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:06:59,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 276 [2024-10-11 17:06:59,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 275 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:59,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:59,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 276 [2024-10-11 17:06:59,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:00,495 INFO L124 PetriNetUnfolderBase]: 560/2325 cut-off events. [2024-10-11 17:07:00,495 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:00,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3537 conditions, 2325 events. 560/2325 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14858 event pairs, 560 based on Foata normal form. 0/2115 useless extension candidates. Maximal degree in co-relation 3350. Up to 1193 conditions per place. [2024-10-11 17:07:00,518 INFO L140 encePairwiseOnDemand]: 258/276 looper letters, 72 selfloop transitions, 15 changer transitions 0/272 dead transitions. [2024-10-11 17:07:00,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 272 transitions, 721 flow [2024-10-11 17:07:00,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:00,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:00,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1206 transitions. [2024-10-11 17:07:00,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7282608695652174 [2024-10-11 17:07:00,548 INFO L175 Difference]: Start difference. First operand has 279 places, 275 transitions, 553 flow. Second operand 6 states and 1206 transitions. [2024-10-11 17:07:00,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 272 transitions, 721 flow [2024-10-11 17:07:00,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 272 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:00,560 INFO L231 Difference]: Finished difference. Result has 280 places, 272 transitions, 576 flow [2024-10-11 17:07:00,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=280, PETRI_TRANSITIONS=272} [2024-10-11 17:07:00,569 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2024-10-11 17:07:00,569 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 272 transitions, 576 flow [2024-10-11 17:07:00,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:00,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:00,571 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] [2024-10-11 17:07:00,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:07:00,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:00,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:00,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1092997858, now seen corresponding path program 1 times [2024-10-11 17:07:00,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:00,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827417740] [2024-10-11 17:07:00,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:00,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:00,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:00,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827417740] [2024-10-11 17:07:00,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827417740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:00,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:00,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:00,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084300021] [2024-10-11 17:07:00,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:00,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:00,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:01,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 276 [2024-10-11 17:07:01,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 272 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:01,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:01,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 276 [2024-10-11 17:07:01,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:01,847 INFO L124 PetriNetUnfolderBase]: 560/2322 cut-off events. [2024-10-11 17:07:01,847 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:01,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3549 conditions, 2322 events. 560/2322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14859 event pairs, 560 based on Foata normal form. 0/2115 useless extension candidates. Maximal degree in co-relation 3391. Up to 1193 conditions per place. [2024-10-11 17:07:01,859 INFO L140 encePairwiseOnDemand]: 258/276 looper letters, 72 selfloop transitions, 15 changer transitions 0/269 dead transitions. [2024-10-11 17:07:01,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 269 transitions, 744 flow [2024-10-11 17:07:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:01,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:01,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1206 transitions. [2024-10-11 17:07:01,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7282608695652174 [2024-10-11 17:07:01,865 INFO L175 Difference]: Start difference. First operand has 280 places, 272 transitions, 576 flow. Second operand 6 states and 1206 transitions. [2024-10-11 17:07:01,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 269 transitions, 744 flow [2024-10-11 17:07:01,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 269 transitions, 714 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:01,876 INFO L231 Difference]: Finished difference. Result has 277 places, 269 transitions, 570 flow [2024-10-11 17:07:01,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=277, PETRI_TRANSITIONS=269} [2024-10-11 17:07:01,877 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -2 predicate places. [2024-10-11 17:07:01,877 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 269 transitions, 570 flow [2024-10-11 17:07:01,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:01,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:01,879 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] [2024-10-11 17:07:01,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:07:01,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:01,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:01,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1560868144, now seen corresponding path program 1 times [2024-10-11 17:07:01,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:01,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429083451] [2024-10-11 17:07:01,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:01,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:01,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:01,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429083451] [2024-10-11 17:07:01,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429083451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:01,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:01,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:01,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033351460] [2024-10-11 17:07:01,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:01,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:01,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:01,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:01,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:01,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 276 [2024-10-11 17:07:01,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 269 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:01,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:01,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 276 [2024-10-11 17:07:01,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:02,092 INFO L124 PetriNetUnfolderBase]: 30/718 cut-off events. [2024-10-11 17:07:02,092 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:02,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 718 events. 30/718 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2616 event pairs, 30 based on Foata normal form. 0/643 useless extension candidates. Maximal degree in co-relation 671. Up to 78 conditions per place. [2024-10-11 17:07:02,096 INFO L140 encePairwiseOnDemand]: 273/276 looper letters, 17 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2024-10-11 17:07:02,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 268 transitions, 606 flow [2024-10-11 17:07:02,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2024-10-11 17:07:02,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9516908212560387 [2024-10-11 17:07:02,100 INFO L175 Difference]: Start difference. First operand has 277 places, 269 transitions, 570 flow. Second operand 3 states and 788 transitions. [2024-10-11 17:07:02,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 268 transitions, 606 flow [2024-10-11 17:07:02,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 268 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:02,106 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 542 flow [2024-10-11 17:07:02,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2024-10-11 17:07:02,108 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -6 predicate places. [2024-10-11 17:07:02,109 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 542 flow [2024-10-11 17:07:02,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:02,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:02,110 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] [2024-10-11 17:07:02,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:07:02,110 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:02,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:02,111 INFO L85 PathProgramCache]: Analyzing trace with hash -388730026, now seen corresponding path program 1 times [2024-10-11 17:07:02,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:02,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323783203] [2024-10-11 17:07:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:02,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:02,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:02,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323783203] [2024-10-11 17:07:02,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323783203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:02,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:02,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:02,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558982056] [2024-10-11 17:07:02,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:02,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:02,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:02,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:02,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:02,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 276 [2024-10-11 17:07:02,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:02,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:02,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 276 [2024-10-11 17:07:02,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:02,296 INFO L124 PetriNetUnfolderBase]: 36/750 cut-off events. [2024-10-11 17:07:02,296 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:02,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 750 events. 36/750 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2996 event pairs, 36 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 788. Up to 89 conditions per place. [2024-10-11 17:07:02,300 INFO L140 encePairwiseOnDemand]: 271/276 looper letters, 17 selfloop transitions, 1 changer transitions 0/264 dead transitions. [2024-10-11 17:07:02,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 264 transitions, 570 flow [2024-10-11 17:07:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:02,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:02,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2024-10-11 17:07:02,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468599033816425 [2024-10-11 17:07:02,302 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 542 flow. Second operand 3 states and 784 transitions. [2024-10-11 17:07:02,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 264 transitions, 570 flow [2024-10-11 17:07:02,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 264 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:07:02,306 INFO L231 Difference]: Finished difference. Result has 269 places, 264 transitions, 532 flow [2024-10-11 17:07:02,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=269, PETRI_TRANSITIONS=264} [2024-10-11 17:07:02,308 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -10 predicate places. [2024-10-11 17:07:02,308 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 264 transitions, 532 flow [2024-10-11 17:07:02,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:02,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:02,309 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] [2024-10-11 17:07:02,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:07:02,309 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:02,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:02,310 INFO L85 PathProgramCache]: Analyzing trace with hash -744891557, now seen corresponding path program 1 times [2024-10-11 17:07:02,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:02,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921945963] [2024-10-11 17:07:02,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:02,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:02,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921945963] [2024-10-11 17:07:02,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921945963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:02,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:02,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954183910] [2024-10-11 17:07:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:02,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:02,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:02,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:02,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:03,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 276 [2024-10-11 17:07:03,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 264 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:03,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 276 [2024-10-11 17:07:03,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:03,468 INFO L124 PetriNetUnfolderBase]: 638/2519 cut-off events. [2024-10-11 17:07:03,468 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:03,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3891 conditions, 2519 events. 638/2519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 16283 event pairs, 638 based on Foata normal form. 0/2317 useless extension candidates. Maximal degree in co-relation 3822. Up to 1362 conditions per place. [2024-10-11 17:07:03,479 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 85 selfloop transitions, 5 changer transitions 0/263 dead transitions. [2024-10-11 17:07:03,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 263 transitions, 710 flow [2024-10-11 17:07:03,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:03,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2024-10-11 17:07:03,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7252415458937198 [2024-10-11 17:07:03,482 INFO L175 Difference]: Start difference. First operand has 269 places, 264 transitions, 532 flow. Second operand 6 states and 1201 transitions. [2024-10-11 17:07:03,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 263 transitions, 710 flow [2024-10-11 17:07:03,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 263 transitions, 709 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:03,487 INFO L231 Difference]: Finished difference. Result has 272 places, 263 transitions, 539 flow [2024-10-11 17:07:03,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=539, PETRI_PLACES=272, PETRI_TRANSITIONS=263} [2024-10-11 17:07:03,488 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -7 predicate places. [2024-10-11 17:07:03,488 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 263 transitions, 539 flow [2024-10-11 17:07:03,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:03,489 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, 1, 1, 1, 1, 1] [2024-10-11 17:07:03,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:07:03,490 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:03,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:03,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1605273385, now seen corresponding path program 1 times [2024-10-11 17:07:03,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:03,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140123781] [2024-10-11 17:07:03,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:03,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:03,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:03,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140123781] [2024-10-11 17:07:03,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140123781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:03,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:03,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:03,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943534680] [2024-10-11 17:07:03,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:03,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:03,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:03,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:03,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 276 [2024-10-11 17:07:03,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 263 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:03,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 276 [2024-10-11 17:07:03,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:03,679 INFO L124 PetriNetUnfolderBase]: 30/706 cut-off events. [2024-10-11 17:07:03,679 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:03,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 706 events. 30/706 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2689 event pairs, 30 based on Foata normal form. 0/645 useless extension candidates. Maximal degree in co-relation 737. Up to 78 conditions per place. [2024-10-11 17:07:03,682 INFO L140 encePairwiseOnDemand]: 273/276 looper letters, 17 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2024-10-11 17:07:03,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 262 transitions, 575 flow [2024-10-11 17:07:03,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2024-10-11 17:07:03,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9516908212560387 [2024-10-11 17:07:03,685 INFO L175 Difference]: Start difference. First operand has 272 places, 263 transitions, 539 flow. Second operand 3 states and 788 transitions. [2024-10-11 17:07:03,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 262 transitions, 575 flow [2024-10-11 17:07:03,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 262 transitions, 565 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:03,690 INFO L231 Difference]: Finished difference. Result has 268 places, 262 transitions, 531 flow [2024-10-11 17:07:03,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=268, PETRI_TRANSITIONS=262} [2024-10-11 17:07:03,691 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -11 predicate places. [2024-10-11 17:07:03,691 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 262 transitions, 531 flow [2024-10-11 17:07:03,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:03,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:03,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:07:03,693 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:03,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:03,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1215126668, now seen corresponding path program 1 times [2024-10-11 17:07:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:03,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102437127] [2024-10-11 17:07:03,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:03,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:03,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:03,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102437127] [2024-10-11 17:07:03,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102437127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:03,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:03,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:03,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180802273] [2024-10-11 17:07:03,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:03,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:03,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:03,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:03,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:03,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 276 [2024-10-11 17:07:03,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 262 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:03,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 276 [2024-10-11 17:07:03,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:03,901 INFO L124 PetriNetUnfolderBase]: 36/734 cut-off events. [2024-10-11 17:07:03,901 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:03,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 734 events. 36/734 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2925 event pairs, 36 based on Foata normal form. 0/678 useless extension candidates. Maximal degree in co-relation 774. Up to 89 conditions per place. [2024-10-11 17:07:03,905 INFO L140 encePairwiseOnDemand]: 271/276 looper letters, 17 selfloop transitions, 1 changer transitions 0/258 dead transitions. [2024-10-11 17:07:03,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 258 transitions, 559 flow [2024-10-11 17:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:03,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2024-10-11 17:07:03,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468599033816425 [2024-10-11 17:07:03,908 INFO L175 Difference]: Start difference. First operand has 268 places, 262 transitions, 531 flow. Second operand 3 states and 784 transitions. [2024-10-11 17:07:03,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 258 transitions, 559 flow [2024-10-11 17:07:03,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 258 transitions, 555 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:07:03,913 INFO L231 Difference]: Finished difference. Result has 264 places, 258 transitions, 521 flow [2024-10-11 17:07:03,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=264, PETRI_TRANSITIONS=258} [2024-10-11 17:07:03,915 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -15 predicate places. [2024-10-11 17:07:03,915 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 258 transitions, 521 flow [2024-10-11 17:07:03,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:03,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:03,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:07:03,916 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:03,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1203165847, now seen corresponding path program 1 times [2024-10-11 17:07:03,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:03,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032129372] [2024-10-11 17:07:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:03,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:04,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:04,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032129372] [2024-10-11 17:07:04,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032129372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:04,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:04,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:04,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245511751] [2024-10-11 17:07:04,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:04,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:04,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:04,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:04,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:04,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 276 [2024-10-11 17:07:04,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 258 transitions, 521 flow. Second operand has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:04,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:04,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 276 [2024-10-11 17:07:04,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:05,287 INFO L124 PetriNetUnfolderBase]: 638/2428 cut-off events. [2024-10-11 17:07:05,287 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:05,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3801 conditions, 2428 events. 638/2428 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 15408 event pairs, 638 based on Foata normal form. 0/2281 useless extension candidates. Maximal degree in co-relation 3733. Up to 1362 conditions per place. [2024-10-11 17:07:05,299 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 85 selfloop transitions, 5 changer transitions 0/257 dead transitions. [2024-10-11 17:07:05,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 257 transitions, 699 flow [2024-10-11 17:07:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:05,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2024-10-11 17:07:05,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7252415458937198 [2024-10-11 17:07:05,303 INFO L175 Difference]: Start difference. First operand has 264 places, 258 transitions, 521 flow. Second operand 6 states and 1201 transitions. [2024-10-11 17:07:05,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 257 transitions, 699 flow [2024-10-11 17:07:05,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 257 transitions, 698 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:05,309 INFO L231 Difference]: Finished difference. Result has 267 places, 257 transitions, 528 flow [2024-10-11 17:07:05,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2024-10-11 17:07:05,311 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -12 predicate places. [2024-10-11 17:07:05,312 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 528 flow [2024-10-11 17:07:05,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:05,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:05,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:05,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:07:05,314 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:05,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:05,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2046601516, now seen corresponding path program 1 times [2024-10-11 17:07:05,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:05,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283823886] [2024-10-11 17:07:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:05,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:05,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:05,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:05,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283823886] [2024-10-11 17:07:05,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283823886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:05,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:05,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:05,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015089553] [2024-10-11 17:07:05,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:05,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:05,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:05,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:05,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:06,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 276 [2024-10-11 17:07:06,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:06,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:06,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 276 [2024-10-11 17:07:06,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:06,753 INFO L124 PetriNetUnfolderBase]: 232/1787 cut-off events. [2024-10-11 17:07:06,753 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:06,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2345 conditions, 1787 events. 232/1787 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 11375 event pairs, 20 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 2277. Up to 305 conditions per place. [2024-10-11 17:07:06,760 INFO L140 encePairwiseOnDemand]: 257/276 looper letters, 100 selfloop transitions, 38 changer transitions 0/331 dead transitions. [2024-10-11 17:07:06,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 331 transitions, 952 flow [2024-10-11 17:07:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1412 transitions. [2024-10-11 17:07:06,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8526570048309179 [2024-10-11 17:07:06,764 INFO L175 Difference]: Start difference. First operand has 267 places, 257 transitions, 528 flow. Second operand 6 states and 1412 transitions. [2024-10-11 17:07:06,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 331 transitions, 952 flow [2024-10-11 17:07:06,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 331 transitions, 942 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:06,771 INFO L231 Difference]: Finished difference. Result has 271 places, 293 transitions, 776 flow [2024-10-11 17:07:06,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=776, PETRI_PLACES=271, PETRI_TRANSITIONS=293} [2024-10-11 17:07:06,773 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -8 predicate places. [2024-10-11 17:07:06,773 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 293 transitions, 776 flow [2024-10-11 17:07:06,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:06,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:06,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:06,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:07:06,774 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:06,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:06,775 INFO L85 PathProgramCache]: Analyzing trace with hash 893767704, now seen corresponding path program 1 times [2024-10-11 17:07:06,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:06,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60439991] [2024-10-11 17:07:06,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:06,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:07,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:07,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60439991] [2024-10-11 17:07:07,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60439991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:07,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:07,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:07,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820050742] [2024-10-11 17:07:07,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:07,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:07,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:07,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:07,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:07,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 276 [2024-10-11 17:07:07,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 293 transitions, 776 flow. Second operand has 6 states, 6 states have (on average 224.66666666666666) internal successors, (1348), 6 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:07,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:07,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 276 [2024-10-11 17:07:07,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:08,139 INFO L124 PetriNetUnfolderBase]: 185/1591 cut-off events. [2024-10-11 17:07:08,140 INFO L125 PetriNetUnfolderBase]: For 206/211 co-relation queries the response was YES. [2024-10-11 17:07:08,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2363 conditions, 1591 events. 185/1591 cut-off events. For 206/211 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9959 event pairs, 75 based on Foata normal form. 0/1471 useless extension candidates. Maximal degree in co-relation 2293. Up to 354 conditions per place. [2024-10-11 17:07:08,149 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 96 selfloop transitions, 5 changer transitions 0/308 dead transitions. [2024-10-11 17:07:08,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 308 transitions, 1008 flow [2024-10-11 17:07:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1382 transitions. [2024-10-11 17:07:08,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8345410628019324 [2024-10-11 17:07:08,152 INFO L175 Difference]: Start difference. First operand has 271 places, 293 transitions, 776 flow. Second operand 6 states and 1382 transitions. [2024-10-11 17:07:08,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 308 transitions, 1008 flow [2024-10-11 17:07:08,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 308 transitions, 1008 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:08,161 INFO L231 Difference]: Finished difference. Result has 275 places, 292 transitions, 784 flow [2024-10-11 17:07:08,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=784, PETRI_PLACES=275, PETRI_TRANSITIONS=292} [2024-10-11 17:07:08,164 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -4 predicate places. [2024-10-11 17:07:08,164 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 292 transitions, 784 flow [2024-10-11 17:07:08,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.66666666666666) internal successors, (1348), 6 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:08,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:08,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:08,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:07:08,165 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:08,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:08,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1777114751, now seen corresponding path program 1 times [2024-10-11 17:07:08,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:08,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512767495] [2024-10-11 17:07:08,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:08,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:08,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:08,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512767495] [2024-10-11 17:07:08,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512767495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:08,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:08,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:08,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948294195] [2024-10-11 17:07:08,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:08,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:08,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:08,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:08,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:09,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 276 [2024-10-11 17:07:09,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 292 transitions, 784 flow. Second operand has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:09,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:09,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 276 [2024-10-11 17:07:09,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:09,688 INFO L124 PetriNetUnfolderBase]: 583/2948 cut-off events. [2024-10-11 17:07:09,689 INFO L125 PetriNetUnfolderBase]: For 706/713 co-relation queries the response was YES. [2024-10-11 17:07:09,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5026 conditions, 2948 events. 583/2948 cut-off events. For 706/713 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 21807 event pairs, 69 based on Foata normal form. 0/2761 useless extension candidates. Maximal degree in co-relation 4953. Up to 795 conditions per place. [2024-10-11 17:07:09,708 INFO L140 encePairwiseOnDemand]: 254/276 looper letters, 111 selfloop transitions, 72 changer transitions 0/381 dead transitions. [2024-10-11 17:07:09,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 381 transitions, 1520 flow [2024-10-11 17:07:09,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1389 transitions. [2024-10-11 17:07:09,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387681159420289 [2024-10-11 17:07:09,713 INFO L175 Difference]: Start difference. First operand has 275 places, 292 transitions, 784 flow. Second operand 6 states and 1389 transitions. [2024-10-11 17:07:09,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 381 transitions, 1520 flow [2024-10-11 17:07:09,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 381 transitions, 1502 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:09,725 INFO L231 Difference]: Finished difference. Result has 280 places, 362 transitions, 1440 flow [2024-10-11 17:07:09,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1440, PETRI_PLACES=280, PETRI_TRANSITIONS=362} [2024-10-11 17:07:09,726 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2024-10-11 17:07:09,726 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 362 transitions, 1440 flow [2024-10-11 17:07:09,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:09,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:09,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:09,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:07:09,727 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:09,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:09,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1489313437, now seen corresponding path program 1 times [2024-10-11 17:07:09,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:09,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437997561] [2024-10-11 17:07:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:10,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:10,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437997561] [2024-10-11 17:07:10,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437997561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:10,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:10,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:10,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457319476] [2024-10-11 17:07:10,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:10,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:10,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:10,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:10,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:10,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 276 [2024-10-11 17:07:10,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 362 transitions, 1440 flow. Second operand has 6 states, 6 states have (on average 196.33333333333334) internal successors, (1178), 6 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:10,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:10,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 276 [2024-10-11 17:07:10,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:11,475 INFO L124 PetriNetUnfolderBase]: 1657/5695 cut-off events. [2024-10-11 17:07:11,476 INFO L125 PetriNetUnfolderBase]: For 3355/3415 co-relation queries the response was YES. [2024-10-11 17:07:11,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12784 conditions, 5695 events. 1657/5695 cut-off events. For 3355/3415 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 45929 event pairs, 861 based on Foata normal form. 0/5366 useless extension candidates. Maximal degree in co-relation 12709. Up to 3147 conditions per place. [2024-10-11 17:07:11,523 INFO L140 encePairwiseOnDemand]: 253/276 looper letters, 201 selfloop transitions, 89 changer transitions 0/462 dead transitions. [2024-10-11 17:07:11,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 462 transitions, 2424 flow [2024-10-11 17:07:11,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:11,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1302 transitions. [2024-10-11 17:07:11,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7862318840579711 [2024-10-11 17:07:11,528 INFO L175 Difference]: Start difference. First operand has 280 places, 362 transitions, 1440 flow. Second operand 6 states and 1302 transitions. [2024-10-11 17:07:11,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 462 transitions, 2424 flow [2024-10-11 17:07:11,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 462 transitions, 2424 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:11,548 INFO L231 Difference]: Finished difference. Result has 290 places, 446 transitions, 2242 flow [2024-10-11 17:07:11,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2242, PETRI_PLACES=290, PETRI_TRANSITIONS=446} [2024-10-11 17:07:11,551 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 11 predicate places. [2024-10-11 17:07:11,551 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 446 transitions, 2242 flow [2024-10-11 17:07:11,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.33333333333334) internal successors, (1178), 6 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:11,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:11,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:11,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:07:11,552 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:11,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:11,553 INFO L85 PathProgramCache]: Analyzing trace with hash 106924031, now seen corresponding path program 1 times [2024-10-11 17:07:11,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:11,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030694499] [2024-10-11 17:07:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:11,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:11,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:11,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030694499] [2024-10-11 17:07:11,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030694499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:11,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:11,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:07:11,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024452759] [2024-10-11 17:07:11,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:11,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:11,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:11,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:11,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:11,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 276 [2024-10-11 17:07:11,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 446 transitions, 2242 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:11,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:11,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 276 [2024-10-11 17:07:11,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:12,097 INFO L124 PetriNetUnfolderBase]: 315/1970 cut-off events. [2024-10-11 17:07:12,098 INFO L125 PetriNetUnfolderBase]: For 1136/1199 co-relation queries the response was YES. [2024-10-11 17:07:12,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4120 conditions, 1970 events. 315/1970 cut-off events. For 1136/1199 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 13471 event pairs, 31 based on Foata normal form. 4/1894 useless extension candidates. Maximal degree in co-relation 4047. Up to 312 conditions per place. [2024-10-11 17:07:12,112 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 10 selfloop transitions, 6 changer transitions 0/386 dead transitions. [2024-10-11 17:07:12,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 386 transitions, 1710 flow [2024-10-11 17:07:12,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2024-10-11 17:07:12,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9855072463768116 [2024-10-11 17:07:12,115 INFO L175 Difference]: Start difference. First operand has 290 places, 446 transitions, 2242 flow. Second operand 3 states and 816 transitions. [2024-10-11 17:07:12,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 386 transitions, 1710 flow [2024-10-11 17:07:12,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 386 transitions, 1622 flow, removed 44 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:12,136 INFO L231 Difference]: Finished difference. Result has 293 places, 384 transitions, 1612 flow [2024-10-11 17:07:12,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1578, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1612, PETRI_PLACES=293, PETRI_TRANSITIONS=384} [2024-10-11 17:07:12,138 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 14 predicate places. [2024-10-11 17:07:12,139 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 384 transitions, 1612 flow [2024-10-11 17:07:12,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:12,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:12,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:12,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 17:07:12,140 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:12,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:12,140 INFO L85 PathProgramCache]: Analyzing trace with hash 735522291, now seen corresponding path program 1 times [2024-10-11 17:07:12,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:12,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535810633] [2024-10-11 17:07:12,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:12,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:12,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:12,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535810633] [2024-10-11 17:07:12,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535810633] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:12,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:12,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:12,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679393577] [2024-10-11 17:07:12,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:12,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:12,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:12,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:12,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:13,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 276 [2024-10-11 17:07:13,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 384 transitions, 1612 flow. Second operand has 6 states, 6 states have (on average 219.33333333333334) internal successors, (1316), 6 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:13,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:13,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 276 [2024-10-11 17:07:13,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:13,695 INFO L124 PetriNetUnfolderBase]: 690/3113 cut-off events. [2024-10-11 17:07:13,695 INFO L125 PetriNetUnfolderBase]: For 3020/3221 co-relation queries the response was YES. [2024-10-11 17:07:13,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7440 conditions, 3113 events. 690/3113 cut-off events. For 3020/3221 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23921 event pairs, 54 based on Foata normal form. 20/3022 useless extension candidates. Maximal degree in co-relation 7357. Up to 734 conditions per place. [2024-10-11 17:07:13,713 INFO L140 encePairwiseOnDemand]: 257/276 looper letters, 184 selfloop transitions, 124 changer transitions 4/542 dead transitions. [2024-10-11 17:07:13,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 542 transitions, 3203 flow [2024-10-11 17:07:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1430 transitions. [2024-10-11 17:07:13,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8635265700483091 [2024-10-11 17:07:13,718 INFO L175 Difference]: Start difference. First operand has 293 places, 384 transitions, 1612 flow. Second operand 6 states and 1430 transitions. [2024-10-11 17:07:13,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 542 transitions, 3203 flow [2024-10-11 17:07:13,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 542 transitions, 3180 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:13,743 INFO L231 Difference]: Finished difference. Result has 301 places, 486 transitions, 2988 flow [2024-10-11 17:07:13,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1604, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2988, PETRI_PLACES=301, PETRI_TRANSITIONS=486} [2024-10-11 17:07:13,745 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 22 predicate places. [2024-10-11 17:07:13,745 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 486 transitions, 2988 flow [2024-10-11 17:07:13,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.33333333333334) internal successors, (1316), 6 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:13,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:13,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:13,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 17:07:13,746 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:13,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:13,746 INFO L85 PathProgramCache]: Analyzing trace with hash 347820555, now seen corresponding path program 1 times [2024-10-11 17:07:13,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:13,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788474609] [2024-10-11 17:07:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:13,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:14,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:14,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:14,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788474609] [2024-10-11 17:07:14,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788474609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:14,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:14,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:14,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133812718] [2024-10-11 17:07:14,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:14,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:14,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:14,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:14,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 276 [2024-10-11 17:07:14,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 486 transitions, 2988 flow. Second operand has 6 states, 6 states have (on average 225.66666666666666) internal successors, (1354), 6 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:14,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:14,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 276 [2024-10-11 17:07:14,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:15,288 INFO L124 PetriNetUnfolderBase]: 605/2890 cut-off events. [2024-10-11 17:07:15,288 INFO L125 PetriNetUnfolderBase]: For 5479/5694 co-relation queries the response was YES. [2024-10-11 17:07:15,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7823 conditions, 2890 events. 605/2890 cut-off events. For 5479/5694 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 21929 event pairs, 92 based on Foata normal form. 18/2852 useless extension candidates. Maximal degree in co-relation 7737. Up to 803 conditions per place. [2024-10-11 17:07:15,310 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 218 selfloop transitions, 17 changer transitions 0/501 dead transitions. [2024-10-11 17:07:15,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 501 transitions, 3512 flow [2024-10-11 17:07:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:15,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:15,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1382 transitions. [2024-10-11 17:07:15,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8345410628019324 [2024-10-11 17:07:15,314 INFO L175 Difference]: Start difference. First operand has 301 places, 486 transitions, 2988 flow. Second operand 6 states and 1382 transitions. [2024-10-11 17:07:15,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 501 transitions, 3512 flow [2024-10-11 17:07:15,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 501 transitions, 3494 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:15,337 INFO L231 Difference]: Finished difference. Result has 305 places, 485 transitions, 3002 flow [2024-10-11 17:07:15,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2968, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3002, PETRI_PLACES=305, PETRI_TRANSITIONS=485} [2024-10-11 17:07:15,338 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 26 predicate places. [2024-10-11 17:07:15,338 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 485 transitions, 3002 flow [2024-10-11 17:07:15,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.66666666666666) internal successors, (1354), 6 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:15,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:15,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:15,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:07:15,339 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:15,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:15,340 INFO L85 PathProgramCache]: Analyzing trace with hash 982429328, now seen corresponding path program 1 times [2024-10-11 17:07:15,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:15,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157528919] [2024-10-11 17:07:15,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:15,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:15,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:15,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157528919] [2024-10-11 17:07:15,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157528919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:15,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:15,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:15,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936339769] [2024-10-11 17:07:15,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:15,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:15,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:15,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:15,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:16,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 276 [2024-10-11 17:07:16,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 485 transitions, 3002 flow. Second operand has 6 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:16,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:16,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 276 [2024-10-11 17:07:16,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:17,119 INFO L124 PetriNetUnfolderBase]: 1547/5161 cut-off events. [2024-10-11 17:07:17,120 INFO L125 PetriNetUnfolderBase]: For 7543/7624 co-relation queries the response was YES. [2024-10-11 17:07:17,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15138 conditions, 5161 events. 1547/5161 cut-off events. For 7543/7624 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 41358 event pairs, 582 based on Foata normal form. 1/5009 useless extension candidates. Maximal degree in co-relation 15051. Up to 2881 conditions per place. [2024-10-11 17:07:17,155 INFO L140 encePairwiseOnDemand]: 253/276 looper letters, 304 selfloop transitions, 103 changer transitions 8/591 dead transitions. [2024-10-11 17:07:17,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 591 transitions, 4442 flow [2024-10-11 17:07:17,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:17,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:17,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1302 transitions. [2024-10-11 17:07:17,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7862318840579711 [2024-10-11 17:07:17,159 INFO L175 Difference]: Start difference. First operand has 305 places, 485 transitions, 3002 flow. Second operand 6 states and 1302 transitions. [2024-10-11 17:07:17,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 591 transitions, 4442 flow [2024-10-11 17:07:17,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 591 transitions, 4408 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:17,191 INFO L231 Difference]: Finished difference. Result has 310 places, 571 transitions, 3986 flow [2024-10-11 17:07:17,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2968, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3986, PETRI_PLACES=310, PETRI_TRANSITIONS=571} [2024-10-11 17:07:17,192 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 31 predicate places. [2024-10-11 17:07:17,192 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 571 transitions, 3986 flow [2024-10-11 17:07:17,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:17,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:17,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:17,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:07:17,194 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:17,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:17,194 INFO L85 PathProgramCache]: Analyzing trace with hash 828551593, now seen corresponding path program 1 times [2024-10-11 17:07:17,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:17,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979378578] [2024-10-11 17:07:17,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:17,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:19,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:19,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979378578] [2024-10-11 17:07:19,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979378578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:19,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:19,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 17:07:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830546554] [2024-10-11 17:07:19,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:19,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 17:07:19,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:19,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 17:07:19,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-10-11 17:07:22,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 276 [2024-10-11 17:07:22,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 571 transitions, 3986 flow. Second operand has 20 states, 20 states have (on average 151.15) internal successors, (3023), 20 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:22,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:22,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 276 [2024-10-11 17:07:22,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:24,044 INFO L124 PetriNetUnfolderBase]: 1717/5670 cut-off events. [2024-10-11 17:07:24,044 INFO L125 PetriNetUnfolderBase]: For 11266/11335 co-relation queries the response was YES. [2024-10-11 17:07:24,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18569 conditions, 5670 events. 1717/5670 cut-off events. For 11266/11335 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 46232 event pairs, 195 based on Foata normal form. 19/5643 useless extension candidates. Maximal degree in co-relation 18462. Up to 1900 conditions per place. [2024-10-11 17:07:24,086 INFO L140 encePairwiseOnDemand]: 245/276 looper letters, 529 selfloop transitions, 101 changer transitions 23/785 dead transitions. [2024-10-11 17:07:24,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 785 transitions, 6962 flow [2024-10-11 17:07:24,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-11 17:07:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-10-11 17:07:24,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4364 transitions. [2024-10-11 17:07:24,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5646997929606625 [2024-10-11 17:07:24,099 INFO L175 Difference]: Start difference. First operand has 310 places, 571 transitions, 3986 flow. Second operand 28 states and 4364 transitions. [2024-10-11 17:07:24,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 785 transitions, 6962 flow [2024-10-11 17:07:24,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 785 transitions, 6758 flow, removed 102 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:24,161 INFO L231 Difference]: Finished difference. Result has 347 places, 604 transitions, 4436 flow [2024-10-11 17:07:24,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=3838, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4436, PETRI_PLACES=347, PETRI_TRANSITIONS=604} [2024-10-11 17:07:24,162 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 68 predicate places. [2024-10-11 17:07:24,163 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 604 transitions, 4436 flow [2024-10-11 17:07:24,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 151.15) internal successors, (3023), 20 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:24,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:24,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:24,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 17:07:24,165 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:24,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:24,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1784194913, now seen corresponding path program 1 times [2024-10-11 17:07:24,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:24,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98440800] [2024-10-11 17:07:24,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:24,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:25,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:25,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98440800] [2024-10-11 17:07:25,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98440800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:25,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:25,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 17:07:25,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993921458] [2024-10-11 17:07:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:25,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:07:25,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:07:25,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:07:28,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-11 17:07:28,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 604 transitions, 4436 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:28,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:28,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-11 17:07:28,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:30,069 INFO L124 PetriNetUnfolderBase]: 1405/5296 cut-off events. [2024-10-11 17:07:30,069 INFO L125 PetriNetUnfolderBase]: For 13203/13390 co-relation queries the response was YES. [2024-10-11 17:07:30,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17949 conditions, 5296 events. 1405/5296 cut-off events. For 13203/13390 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 45108 event pairs, 151 based on Foata normal form. 27/5269 useless extension candidates. Maximal degree in co-relation 17825. Up to 1437 conditions per place. [2024-10-11 17:07:30,105 INFO L140 encePairwiseOnDemand]: 243/276 looper letters, 400 selfloop transitions, 123 changer transitions 8/777 dead transitions. [2024-10-11 17:07:30,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 777 transitions, 7003 flow [2024-10-11 17:07:30,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 17:07:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-11 17:07:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4148 transitions. [2024-10-11 17:07:30,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6534341524889729 [2024-10-11 17:07:30,113 INFO L175 Difference]: Start difference. First operand has 347 places, 604 transitions, 4436 flow. Second operand 23 states and 4148 transitions. [2024-10-11 17:07:30,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 777 transitions, 7003 flow [2024-10-11 17:07:30,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 777 transitions, 6879 flow, removed 51 selfloop flow, removed 10 redundant places. [2024-10-11 17:07:30,201 INFO L231 Difference]: Finished difference. Result has 367 places, 668 transitions, 5598 flow [2024-10-11 17:07:30,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=4354, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=5598, PETRI_PLACES=367, PETRI_TRANSITIONS=668} [2024-10-11 17:07:30,202 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 88 predicate places. [2024-10-11 17:07:30,203 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 668 transitions, 5598 flow [2024-10-11 17:07:30,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:30,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:30,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:30,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 17:07:30,205 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:30,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash -93022475, now seen corresponding path program 2 times [2024-10-11 17:07:30,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:30,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803871134] [2024-10-11 17:07:30,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:30,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:31,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:31,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:31,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803871134] [2024-10-11 17:07:31,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803871134] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:31,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:31,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 17:07:31,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645152577] [2024-10-11 17:07:31,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:31,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:07:31,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:31,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:07:31,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:07:34,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-11 17:07:34,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 668 transitions, 5598 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:34,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:34,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-11 17:07:34,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:36,102 INFO L124 PetriNetUnfolderBase]: 1464/5468 cut-off events. [2024-10-11 17:07:36,103 INFO L125 PetriNetUnfolderBase]: For 17844/18075 co-relation queries the response was YES. [2024-10-11 17:07:36,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19599 conditions, 5468 events. 1464/5468 cut-off events. For 17844/18075 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 46603 event pairs, 150 based on Foata normal form. 60/5476 useless extension candidates. Maximal degree in co-relation 19465. Up to 1048 conditions per place. [2024-10-11 17:07:36,255 INFO L140 encePairwiseOnDemand]: 247/276 looper letters, 420 selfloop transitions, 151 changer transitions 8/825 dead transitions. [2024-10-11 17:07:36,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 825 transitions, 8087 flow [2024-10-11 17:07:36,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 17:07:36,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 17:07:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5374 transitions. [2024-10-11 17:07:36,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6490338164251208 [2024-10-11 17:07:36,265 INFO L175 Difference]: Start difference. First operand has 367 places, 668 transitions, 5598 flow. Second operand 30 states and 5374 transitions. [2024-10-11 17:07:36,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 825 transitions, 8087 flow [2024-10-11 17:07:36,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 825 transitions, 8000 flow, removed 23 selfloop flow, removed 11 redundant places. [2024-10-11 17:07:36,356 INFO L231 Difference]: Finished difference. Result has 396 places, 724 transitions, 6625 flow [2024-10-11 17:07:36,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=5548, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=668, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=6625, PETRI_PLACES=396, PETRI_TRANSITIONS=724} [2024-10-11 17:07:36,357 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 117 predicate places. [2024-10-11 17:07:36,357 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 724 transitions, 6625 flow [2024-10-11 17:07:36,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:36,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:36,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:36,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 17:07:36,359 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:36,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1974530083, now seen corresponding path program 3 times [2024-10-11 17:07:36,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:36,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497960692] [2024-10-11 17:07:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:36,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:37,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:37,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:37,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497960692] [2024-10-11 17:07:37,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497960692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:37,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:37,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 17:07:37,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300732505] [2024-10-11 17:07:37,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:37,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:07:37,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:37,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:07:37,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:07:40,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-11 17:07:40,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 724 transitions, 6625 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:40,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:40,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-11 17:07:40,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:42,085 INFO L124 PetriNetUnfolderBase]: 1691/6200 cut-off events. [2024-10-11 17:07:42,086 INFO L125 PetriNetUnfolderBase]: For 27520/27916 co-relation queries the response was YES. [2024-10-11 17:07:42,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23876 conditions, 6200 events. 1691/6200 cut-off events. For 27520/27916 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 55049 event pairs, 178 based on Foata normal form. 97/6230 useless extension candidates. Maximal degree in co-relation 23730. Up to 1514 conditions per place. [2024-10-11 17:07:42,135 INFO L140 encePairwiseOnDemand]: 243/276 looper letters, 483 selfloop transitions, 161 changer transitions 8/898 dead transitions. [2024-10-11 17:07:42,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 898 transitions, 9741 flow [2024-10-11 17:07:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-11 17:07:42,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-11 17:07:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4500 transitions. [2024-10-11 17:07:42,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2024-10-11 17:07:42,141 INFO L175 Difference]: Start difference. First operand has 396 places, 724 transitions, 6625 flow. Second operand 25 states and 4500 transitions. [2024-10-11 17:07:42,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 898 transitions, 9741 flow [2024-10-11 17:07:42,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 898 transitions, 9655 flow, removed 21 selfloop flow, removed 13 redundant places. [2024-10-11 17:07:42,267 INFO L231 Difference]: Finished difference. Result has 412 places, 785 transitions, 8136 flow [2024-10-11 17:07:42,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=6541, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=724, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8136, PETRI_PLACES=412, PETRI_TRANSITIONS=785} [2024-10-11 17:07:42,268 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 133 predicate places. [2024-10-11 17:07:42,268 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 785 transitions, 8136 flow [2024-10-11 17:07:42,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:42,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:42,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:42,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 17:07:42,270 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:42,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:42,271 INFO L85 PathProgramCache]: Analyzing trace with hash 564269631, now seen corresponding path program 4 times [2024-10-11 17:07:42,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:42,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635958833] [2024-10-11 17:07:42,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:42,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:43,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:43,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635958833] [2024-10-11 17:07:43,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635958833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:43,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:43,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 17:07:43,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329992916] [2024-10-11 17:07:43,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:43,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:07:43,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:43,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:07:43,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:07:46,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-11 17:07:46,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 785 transitions, 8136 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:46,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:46,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-11 17:07:46,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:48,671 INFO L124 PetriNetUnfolderBase]: 1930/7012 cut-off events. [2024-10-11 17:07:48,672 INFO L125 PetriNetUnfolderBase]: For 40860/41269 co-relation queries the response was YES. [2024-10-11 17:07:48,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28420 conditions, 7012 events. 1930/7012 cut-off events. For 40860/41269 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 64546 event pairs, 209 based on Foata normal form. 88/7025 useless extension candidates. Maximal degree in co-relation 28268. Up to 1461 conditions per place. [2024-10-11 17:07:48,742 INFO L140 encePairwiseOnDemand]: 243/276 looper letters, 537 selfloop transitions, 209 changer transitions 8/1000 dead transitions. [2024-10-11 17:07:48,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1000 transitions, 12266 flow [2024-10-11 17:07:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 17:07:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-10-11 17:07:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4861 transitions. [2024-10-11 17:07:48,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523081052066559 [2024-10-11 17:07:48,747 INFO L175 Difference]: Start difference. First operand has 412 places, 785 transitions, 8136 flow. Second operand 27 states and 4861 transitions. [2024-10-11 17:07:48,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1000 transitions, 12266 flow [2024-10-11 17:07:48,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 1000 transitions, 12168 flow, removed 10 selfloop flow, removed 17 redundant places. [2024-10-11 17:07:48,893 INFO L231 Difference]: Finished difference. Result has 431 places, 864 transitions, 10297 flow [2024-10-11 17:07:48,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=8048, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=10297, PETRI_PLACES=431, PETRI_TRANSITIONS=864} [2024-10-11 17:07:48,894 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 152 predicate places. [2024-10-11 17:07:48,894 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 864 transitions, 10297 flow [2024-10-11 17:07:48,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:48,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:48,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:48,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 17:07:48,896 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:48,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1501794779, now seen corresponding path program 5 times [2024-10-11 17:07:48,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:48,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118696456] [2024-10-11 17:07:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:48,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:50,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:50,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:50,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118696456] [2024-10-11 17:07:50,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118696456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:50,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:50,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 17:07:50,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464483448] [2024-10-11 17:07:50,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:50,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:07:50,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:50,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:07:50,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:07:54,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-11 17:07:54,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 864 transitions, 10297 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:54,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:54,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-11 17:07:54,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:56,195 INFO L124 PetriNetUnfolderBase]: 2130/7703 cut-off events. [2024-10-11 17:07:56,195 INFO L125 PetriNetUnfolderBase]: For 58158/58639 co-relation queries the response was YES. [2024-10-11 17:07:56,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32872 conditions, 7703 events. 2130/7703 cut-off events. For 58158/58639 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 73110 event pairs, 231 based on Foata normal form. 110/7728 useless extension candidates. Maximal degree in co-relation 32709. Up to 1793 conditions per place. [2024-10-11 17:07:56,264 INFO L140 encePairwiseOnDemand]: 243/276 looper letters, 548 selfloop transitions, 246 changer transitions 8/1048 dead transitions. [2024-10-11 17:07:56,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1048 transitions, 14288 flow [2024-10-11 17:07:56,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-11 17:07:56,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-10-11 17:07:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4681 transitions. [2024-10-11 17:07:56,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523132664437012 [2024-10-11 17:07:56,268 INFO L175 Difference]: Start difference. First operand has 431 places, 864 transitions, 10297 flow. Second operand 26 states and 4681 transitions. [2024-10-11 17:07:56,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1048 transitions, 14288 flow [2024-10-11 17:07:56,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 1048 transitions, 14164 flow, removed 38 selfloop flow, removed 14 redundant places. [2024-10-11 17:07:56,462 INFO L231 Difference]: Finished difference. Result has 450 places, 923 transitions, 12442 flow [2024-10-11 17:07:56,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=10173, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=864, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=12442, PETRI_PLACES=450, PETRI_TRANSITIONS=923} [2024-10-11 17:07:56,463 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 171 predicate places. [2024-10-11 17:07:56,463 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 923 transitions, 12442 flow [2024-10-11 17:07:56,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:56,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:56,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:56,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 17:07:56,464 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:07:56,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash 636169732, now seen corresponding path program 1 times [2024-10-11 17:07:56,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:56,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206554809] [2024-10-11 17:07:56,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:56,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:57,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:57,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206554809] [2024-10-11 17:07:57,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206554809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:57,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:57,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 17:07:57,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845061552] [2024-10-11 17:07:57,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:57,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 17:07:57,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:57,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 17:07:57,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-10-11 17:08:00,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-11 17:08:00,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 923 transitions, 12442 flow. Second operand has 20 states, 20 states have (on average 176.5) internal successors, (3530), 20 states have internal predecessors, (3530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:00,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:00,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-11 17:08:00,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:03,102 INFO L124 PetriNetUnfolderBase]: 2155/7718 cut-off events. [2024-10-11 17:08:03,102 INFO L125 PetriNetUnfolderBase]: For 72961/73433 co-relation queries the response was YES. [2024-10-11 17:08:03,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34540 conditions, 7718 events. 2155/7718 cut-off events. For 72961/73433 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 73161 event pairs, 254 based on Foata normal form. 91/7721 useless extension candidates. Maximal degree in co-relation 34368. Up to 1159 conditions per place. [2024-10-11 17:08:03,173 INFO L140 encePairwiseOnDemand]: 242/276 looper letters, 551 selfloop transitions, 228 changer transitions 8/1033 dead transitions. [2024-10-11 17:08:03,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1033 transitions, 15063 flow [2024-10-11 17:08:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-11 17:08:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-10-11 17:08:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 5895 transitions. [2024-10-11 17:08:03,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6472332015810277 [2024-10-11 17:08:03,180 INFO L175 Difference]: Start difference. First operand has 450 places, 923 transitions, 12442 flow. Second operand 33 states and 5895 transitions. [2024-10-11 17:08:03,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1033 transitions, 15063 flow [2024-10-11 17:08:03,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 1033 transitions, 14928 flow, removed 40 selfloop flow, removed 15 redundant places. [2024-10-11 17:08:03,427 INFO L231 Difference]: Finished difference. Result has 470 places, 932 transitions, 13174 flow [2024-10-11 17:08:03,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=12307, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=923, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=13174, PETRI_PLACES=470, PETRI_TRANSITIONS=932} [2024-10-11 17:08:03,428 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 191 predicate places. [2024-10-11 17:08:03,428 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 932 transitions, 13174 flow [2024-10-11 17:08:03,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 176.5) internal successors, (3530), 20 states have internal predecessors, (3530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:03,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:03,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:03,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 17:08:03,429 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:08:03,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1156988090, now seen corresponding path program 2 times [2024-10-11 17:08:03,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:03,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431215010] [2024-10-11 17:08:03,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:03,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:04,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:04,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431215010] [2024-10-11 17:08:04,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431215010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:04,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:04,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 17:08:04,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343883805] [2024-10-11 17:08:04,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:04,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 17:08:04,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:04,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 17:08:04,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-10-11 17:08:07,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 276 [2024-10-11 17:08:07,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 932 transitions, 13174 flow. Second operand has 20 states, 20 states have (on average 174.55) internal successors, (3491), 20 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:07,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:07,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 276 [2024-10-11 17:08:07,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:09,864 INFO L124 PetriNetUnfolderBase]: 2207/7883 cut-off events. [2024-10-11 17:08:09,864 INFO L125 PetriNetUnfolderBase]: For 88988/89500 co-relation queries the response was YES. [2024-10-11 17:08:09,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36675 conditions, 7883 events. 2207/7883 cut-off events. For 88988/89500 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 74827 event pairs, 238 based on Foata normal form. 141/7933 useless extension candidates. Maximal degree in co-relation 36495. Up to 1173 conditions per place. [2024-10-11 17:08:09,926 INFO L140 encePairwiseOnDemand]: 242/276 looper letters, 623 selfloop transitions, 250 changer transitions 12/1127 dead transitions. [2024-10-11 17:08:09,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 1127 transitions, 17031 flow [2024-10-11 17:08:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-11 17:08:09,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-10-11 17:08:09,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 5867 transitions. [2024-10-11 17:08:09,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6441589811155028 [2024-10-11 17:08:09,932 INFO L175 Difference]: Start difference. First operand has 470 places, 932 transitions, 13174 flow. Second operand 33 states and 5867 transitions. [2024-10-11 17:08:09,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 1127 transitions, 17031 flow [2024-10-11 17:08:10,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 1127 transitions, 16691 flow, removed 16 selfloop flow, removed 28 redundant places. [2024-10-11 17:08:10,232 INFO L231 Difference]: Finished difference. Result has 478 places, 952 transitions, 14079 flow [2024-10-11 17:08:10,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=12852, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=14079, PETRI_PLACES=478, PETRI_TRANSITIONS=952} [2024-10-11 17:08:10,233 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 199 predicate places. [2024-10-11 17:08:10,233 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 952 transitions, 14079 flow [2024-10-11 17:08:10,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 174.55) internal successors, (3491), 20 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:10,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:10,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:10,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 17:08:10,234 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-11 17:08:10,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:10,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2147425216, now seen corresponding path program 3 times [2024-10-11 17:08:10,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:10,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260424315] [2024-10-11 17:08:10,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:10,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat