./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_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:06:30,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:06:30,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:06:30,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:06:30,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:06:30,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:06:30,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:06:30,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:06:30,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:06:30,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:06:30,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:06:30,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:06:30,550 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:06:30,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:06:30,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:06:30,551 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:06:30,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:06:30,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:06:30,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:06:30,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:06:30,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:06:30,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:06:30,553 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:06:30,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:06:30,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:06:30,554 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:06:30,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:06:30,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:06:30,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:06:30,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:06:30,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:06:30,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:06:30,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:06:30,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:06:30,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:06:30,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:06:30,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:06:30,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:06:30,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:06:30,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:06:30,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:06:30,558 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2024-10-14 17:06:30,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:06:30,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:06:30,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:06:30,781 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:06:30,781 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:06:30,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-10-14 17:06:32,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:06:32,312 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:06:32,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-10-14 17:06:32,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/218c57ec4/93468094f4424ff0967935a726314436/FLAG95a2c80ed [2024-10-14 17:06:32,351 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/218c57ec4/93468094f4424ff0967935a726314436 [2024-10-14 17:06:32,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:06:32,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:06:32,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:06:32,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:06:32,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:06:32,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:06:32" (1/1) ... [2024-10-14 17:06:32,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e9d94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:32, skipping insertion in model container [2024-10-14 17:06:32,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:06:32" (1/1) ... [2024-10-14 17:06:32,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:06:32,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:06:32,934 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:06:32,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:06:33,037 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:06:33,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33 WrapperNode [2024-10-14 17:06:33,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:06:33,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:06:33,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:06:33,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:06:33,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,096 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 244 [2024-10-14 17:06:33,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:06:33,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:06:33,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:06:33,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:06:33,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:06:33,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:06:33,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:06:33,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:06:33,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (1/1) ... [2024-10-14 17:06:33,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:06:33,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:06:33,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:06:33,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:06:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-14 17:06:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-14 17:06:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:06:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:06:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:06:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:06:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:06:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:06:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-14 17:06:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:06:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:06:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:06:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:06:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:06:33,233 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:06:33,358 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:06:33,360 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:06:33,756 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:06:33,756 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:06:33,803 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:06:33,804 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 17:06:33,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:06:33 BoogieIcfgContainer [2024-10-14 17:06:33,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:06:33,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:06:33,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:06:33,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:06:33,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:06:32" (1/3) ... [2024-10-14 17:06:33,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f09b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:06:33, skipping insertion in model container [2024-10-14 17:06:33,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:06:33" (2/3) ... [2024-10-14 17:06:33,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f09b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:06:33, skipping insertion in model container [2024-10-14 17:06:33,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:06:33" (3/3) ... [2024-10-14 17:06:33,813 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2024-10-14 17:06:33,827 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:06:33,827 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-10-14 17:06:33,828 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:06:33,951 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 17:06:33,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 273 transitions, 550 flow [2024-10-14 17:06:34,102 INFO L124 PetriNetUnfolderBase]: 2/272 cut-off events. [2024-10-14 17:06:34,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:06:34,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 2/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2024-10-14 17:06:34,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 273 transitions, 550 flow [2024-10-14 17:06:34,127 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 272 transitions, 547 flow [2024-10-14 17:06:34,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:06:34,150 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;@4f3697c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:06:34,151 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-14 17:06:34,155 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:06:34,155 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-14 17:06:34,155 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:06:34,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:34,155 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] [2024-10-14 17:06:34,156 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:06:34,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:34,164 INFO L85 PathProgramCache]: Analyzing trace with hash 588289797, now seen corresponding path program 1 times [2024-10-14 17:06:34,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:34,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195635103] [2024-10-14 17:06:34,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:34,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:34,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:34,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195635103] [2024-10-14 17:06:34,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195635103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:34,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:34,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:06:34,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536027941] [2024-10-14 17:06:34,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:34,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:06:34,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:34,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:06:34,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:06:35,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 273 [2024-10-14 17:06:35,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 272 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:35,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:35,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 273 [2024-10-14 17:06:35,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:35,848 INFO L124 PetriNetUnfolderBase]: 1377/4968 cut-off events. [2024-10-14 17:06:35,848 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:06:35,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7762 conditions, 4968 events. 1377/4968 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 37213 event pairs, 1344 based on Foata normal form. 36/4638 useless extension candidates. Maximal degree in co-relation 7665. Up to 2785 conditions per place. [2024-10-14 17:06:35,867 INFO L140 encePairwiseOnDemand]: 266/273 looper letters, 92 selfloop transitions, 5 changer transitions 0/270 dead transitions. [2024-10-14 17:06:35,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 270 transitions, 737 flow [2024-10-14 17:06:35,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:06:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:06:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1143 transitions. [2024-10-14 17:06:35,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6978021978021978 [2024-10-14 17:06:35,888 INFO L175 Difference]: Start difference. First operand has 274 places, 272 transitions, 547 flow. Second operand 6 states and 1143 transitions. [2024-10-14 17:06:35,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 270 transitions, 737 flow [2024-10-14 17:06:35,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 270 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:06:35,898 INFO L231 Difference]: Finished difference. Result has 277 places, 270 transitions, 552 flow [2024-10-14 17:06:35,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=277, PETRI_TRANSITIONS=270} [2024-10-14 17:06:35,903 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 3 predicate places. [2024-10-14 17:06:35,905 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 270 transitions, 552 flow [2024-10-14 17:06:35,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:35,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:35,906 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] [2024-10-14 17:06:35,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:06:35,907 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:06:35,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:35,908 INFO L85 PathProgramCache]: Analyzing trace with hash 88798604, now seen corresponding path program 1 times [2024-10-14 17:06:35,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:35,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378923173] [2024-10-14 17:06:35,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:35,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:36,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:36,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378923173] [2024-10-14 17:06:36,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378923173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:36,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:36,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:06:36,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100832189] [2024-10-14 17:06:36,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:36,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:06:36,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:36,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:06:36,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:06:36,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 273 [2024-10-14 17:06:36,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 270 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:36,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:36,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 273 [2024-10-14 17:06:36,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:37,591 INFO L124 PetriNetUnfolderBase]: 762/4047 cut-off events. [2024-10-14 17:06:37,592 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:06:37,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5631 conditions, 4047 events. 762/4047 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 31117 event pairs, 460 based on Foata normal form. 0/3686 useless extension candidates. Maximal degree in co-relation 5584. Up to 1372 conditions per place. [2024-10-14 17:06:37,605 INFO L140 encePairwiseOnDemand]: 241/273 looper letters, 81 selfloop transitions, 90 changer transitions 0/370 dead transitions. [2024-10-14 17:06:37,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 370 transitions, 1094 flow [2024-10-14 17:06:37,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:06:37,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:06:37,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2024-10-14 17:06:37,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8418803418803419 [2024-10-14 17:06:37,608 INFO L175 Difference]: Start difference. First operand has 277 places, 270 transitions, 552 flow. Second operand 6 states and 1379 transitions. [2024-10-14 17:06:37,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 370 transitions, 1094 flow [2024-10-14 17:06:37,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 370 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:06:37,618 INFO L231 Difference]: Finished difference. Result has 281 places, 353 transitions, 1118 flow [2024-10-14 17:06:37,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1118, PETRI_PLACES=281, PETRI_TRANSITIONS=353} [2024-10-14 17:06:37,619 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 7 predicate places. [2024-10-14 17:06:37,619 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 353 transitions, 1118 flow [2024-10-14 17:06:37,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:37,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:37,621 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] [2024-10-14 17:06:37,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:06:37,621 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:06:37,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:37,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1585679875, now seen corresponding path program 1 times [2024-10-14 17:06:37,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:37,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517715096] [2024-10-14 17:06:37,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:37,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:37,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:37,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517715096] [2024-10-14 17:06:37,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517715096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:37,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:37,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:06:37,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158646932] [2024-10-14 17:06:37,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:37,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:06:37,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:37,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:06:37,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:06:38,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-10-14 17:06:38,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 353 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:38,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:38,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-10-14 17:06:38,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:39,370 INFO L124 PetriNetUnfolderBase]: 2110/7415 cut-off events. [2024-10-14 17:06:39,371 INFO L125 PetriNetUnfolderBase]: For 1556/1568 co-relation queries the response was YES. [2024-10-14 17:06:39,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13845 conditions, 7415 events. 2110/7415 cut-off events. For 1556/1568 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 59857 event pairs, 1264 based on Foata normal form. 0/6797 useless extension candidates. Maximal degree in co-relation 13740. Up to 4041 conditions per place. [2024-10-14 17:06:39,403 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 187 selfloop transitions, 123 changer transitions 0/485 dead transitions. [2024-10-14 17:06:39,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 485 transitions, 2162 flow [2024-10-14 17:06:39,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:06:39,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:06:39,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-10-14 17:06:39,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-10-14 17:06:39,407 INFO L175 Difference]: Start difference. First operand has 281 places, 353 transitions, 1118 flow. Second operand 6 states and 1291 transitions. [2024-10-14 17:06:39,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 485 transitions, 2162 flow [2024-10-14 17:06:39,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 485 transitions, 2162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:06:39,421 INFO L231 Difference]: Finished difference. Result has 290 places, 469 transitions, 2070 flow [2024-10-14 17:06:39,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2070, PETRI_PLACES=290, PETRI_TRANSITIONS=469} [2024-10-14 17:06:39,422 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 16 predicate places. [2024-10-14 17:06:39,423 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 469 transitions, 2070 flow [2024-10-14 17:06:39,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:39,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:39,424 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] [2024-10-14 17:06:39,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:06:39,424 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:06:39,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:39,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1646599047, now seen corresponding path program 1 times [2024-10-14 17:06:39,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:39,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933271621] [2024-10-14 17:06:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:39,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:39,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:39,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:39,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933271621] [2024-10-14 17:06:39,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933271621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:39,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:39,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:06:39,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386379233] [2024-10-14 17:06:39,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:39,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:06:39,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:39,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:06:39,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:06:40,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-10-14 17:06:40,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 469 transitions, 2070 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:40,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:40,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-10-14 17:06:40,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:41,521 INFO L124 PetriNetUnfolderBase]: 2413/8345 cut-off events. [2024-10-14 17:06:41,523 INFO L125 PetriNetUnfolderBase]: For 3708/3726 co-relation queries the response was YES. [2024-10-14 17:06:41,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17802 conditions, 8345 events. 2413/8345 cut-off events. For 3708/3726 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 67957 event pairs, 1292 based on Foata normal form. 0/7701 useless extension candidates. Maximal degree in co-relation 17683. Up to 4368 conditions per place. [2024-10-14 17:06:41,557 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 299 selfloop transitions, 123 changer transitions 0/601 dead transitions. [2024-10-14 17:06:41,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 601 transitions, 3562 flow [2024-10-14 17:06:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:06:41,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:06:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-10-14 17:06:41,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-10-14 17:06:41,560 INFO L175 Difference]: Start difference. First operand has 290 places, 469 transitions, 2070 flow. Second operand 6 states and 1291 transitions. [2024-10-14 17:06:41,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 601 transitions, 3562 flow [2024-10-14 17:06:41,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 601 transitions, 3402 flow, removed 80 selfloop flow, removed 0 redundant places. [2024-10-14 17:06:41,577 INFO L231 Difference]: Finished difference. Result has 299 places, 585 transitions, 3086 flow [2024-10-14 17:06:41,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3086, PETRI_PLACES=299, PETRI_TRANSITIONS=585} [2024-10-14 17:06:41,579 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 25 predicate places. [2024-10-14 17:06:41,579 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 585 transitions, 3086 flow [2024-10-14 17:06:41,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:41,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:41,580 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] [2024-10-14 17:06:41,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:06:41,581 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:06:41,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:41,581 INFO L85 PathProgramCache]: Analyzing trace with hash 755334796, now seen corresponding path program 1 times [2024-10-14 17:06:41,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:41,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551745873] [2024-10-14 17:06:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:41,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:41,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:41,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551745873] [2024-10-14 17:06:41,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551745873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:41,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:41,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:06:41,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790977158] [2024-10-14 17:06:41,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:41,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:06:41,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:41,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:06:41,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:06:42,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-10-14 17:06:42,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 585 transitions, 3086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:42,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:42,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-10-14 17:06:42,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:43,762 INFO L124 PetriNetUnfolderBase]: 2735/9143 cut-off events. [2024-10-14 17:06:43,762 INFO L125 PetriNetUnfolderBase]: For 5402/5479 co-relation queries the response was YES. [2024-10-14 17:06:43,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21642 conditions, 9143 events. 2735/9143 cut-off events. For 5402/5479 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 74784 event pairs, 1246 based on Foata normal form. 0/8476 useless extension candidates. Maximal degree in co-relation 21510. Up to 4881 conditions per place. [2024-10-14 17:06:43,803 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 360 selfloop transitions, 180 changer transitions 0/768 dead transitions. [2024-10-14 17:06:43,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 768 transitions, 4754 flow [2024-10-14 17:06:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:06:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:06:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-10-14 17:06:43,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-10-14 17:06:43,807 INFO L175 Difference]: Start difference. First operand has 299 places, 585 transitions, 3086 flow. Second operand 6 states and 1338 transitions. [2024-10-14 17:06:43,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 768 transitions, 4754 flow [2024-10-14 17:06:43,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 768 transitions, 4358 flow, removed 198 selfloop flow, removed 0 redundant places. [2024-10-14 17:06:43,827 INFO L231 Difference]: Finished difference. Result has 309 places, 752 transitions, 4086 flow [2024-10-14 17:06:43,827 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2702, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4086, PETRI_PLACES=309, PETRI_TRANSITIONS=752} [2024-10-14 17:06:43,828 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 35 predicate places. [2024-10-14 17:06:43,828 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 752 transitions, 4086 flow [2024-10-14 17:06:43,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:43,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:43,829 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] [2024-10-14 17:06:43,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:06:43,829 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:06:43,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:43,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1921247633, now seen corresponding path program 1 times [2024-10-14 17:06:43,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:43,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373331193] [2024-10-14 17:06:43,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:43,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:44,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373331193] [2024-10-14 17:06:44,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373331193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:44,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:44,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:06:44,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329788226] [2024-10-14 17:06:44,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:44,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:06:44,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:44,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:06:44,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:06:44,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-10-14 17:06:44,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 752 transitions, 4086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:44,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:44,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-10-14 17:06:44,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:46,196 INFO L124 PetriNetUnfolderBase]: 3180/10480 cut-off events. [2024-10-14 17:06:46,197 INFO L125 PetriNetUnfolderBase]: For 8590/8696 co-relation queries the response was YES. [2024-10-14 17:06:46,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27889 conditions, 10480 events. 3180/10480 cut-off events. For 8590/8696 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 87524 event pairs, 1284 based on Foata normal form. 0/9787 useless extension candidates. Maximal degree in co-relation 27752. Up to 5371 conditions per place. [2024-10-14 17:06:46,251 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 513 selfloop transitions, 180 changer transitions 0/935 dead transitions. [2024-10-14 17:06:46,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 935 transitions, 6354 flow [2024-10-14 17:06:46,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:06:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:06:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-10-14 17:06:46,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-10-14 17:06:46,254 INFO L175 Difference]: Start difference. First operand has 309 places, 752 transitions, 4086 flow. Second operand 6 states and 1338 transitions. [2024-10-14 17:06:46,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 935 transitions, 6354 flow [2024-10-14 17:06:46,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 935 transitions, 6300 flow, removed 27 selfloop flow, removed 0 redundant places. [2024-10-14 17:06:46,290 INFO L231 Difference]: Finished difference. Result has 319 places, 919 transitions, 5722 flow [2024-10-14 17:06:46,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4032, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5722, PETRI_PLACES=319, PETRI_TRANSITIONS=919} [2024-10-14 17:06:46,291 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 45 predicate places. [2024-10-14 17:06:46,291 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 919 transitions, 5722 flow [2024-10-14 17:06:46,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:46,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:46,292 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] [2024-10-14 17:06:46,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:06:46,293 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:06:46,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:46,293 INFO L85 PathProgramCache]: Analyzing trace with hash 449356076, now seen corresponding path program 1 times [2024-10-14 17:06:46,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:46,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467260967] [2024-10-14 17:06:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:46,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:46,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:46,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467260967] [2024-10-14 17:06:46,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467260967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:46,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:46,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:06:46,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659458744] [2024-10-14 17:06:46,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:46,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:06:46,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:46,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:06:46,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:06:49,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-14 17:06:49,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 919 transitions, 5722 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:49,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:49,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-14 17:06:49,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:53,746 INFO L124 PetriNetUnfolderBase]: 4111/12732 cut-off events. [2024-10-14 17:06:53,747 INFO L125 PetriNetUnfolderBase]: For 15762/15857 co-relation queries the response was YES. [2024-10-14 17:06:53,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38443 conditions, 12732 events. 4111/12732 cut-off events. For 15762/15857 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 106101 event pairs, 787 based on Foata normal form. 37/12138 useless extension candidates. Maximal degree in co-relation 38294. Up to 4181 conditions per place. [2024-10-14 17:06:53,855 INFO L140 encePairwiseOnDemand]: 216/273 looper letters, 921 selfloop transitions, 276 changer transitions 0/1416 dead transitions. [2024-10-14 17:06:53,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1416 transitions, 11032 flow [2024-10-14 17:06:53,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 17:06:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-14 17:06:53,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5542 transitions. [2024-10-14 17:06:53,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6548505258182677 [2024-10-14 17:06:53,866 INFO L175 Difference]: Start difference. First operand has 319 places, 919 transitions, 5722 flow. Second operand 31 states and 5542 transitions. [2024-10-14 17:06:53,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1416 transitions, 11032 flow [2024-10-14 17:06:53,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 1416 transitions, 10672 flow, removed 180 selfloop flow, removed 0 redundant places. [2024-10-14 17:06:53,958 INFO L231 Difference]: Finished difference. Result has 374 places, 1026 transitions, 7334 flow [2024-10-14 17:06:53,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5362, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=696, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=7334, PETRI_PLACES=374, PETRI_TRANSITIONS=1026} [2024-10-14 17:06:53,959 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 100 predicate places. [2024-10-14 17:06:53,959 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 1026 transitions, 7334 flow [2024-10-14 17:06:53,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:53,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:53,961 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] [2024-10-14 17:06:53,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:06:53,961 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:06:53,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:53,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1911054158, now seen corresponding path program 2 times [2024-10-14 17:06:53,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:53,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217757163] [2024-10-14 17:06:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:53,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:54,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:54,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217757163] [2024-10-14 17:06:54,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217757163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:54,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:54,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:06:54,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178007192] [2024-10-14 17:06:54,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:54,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:06:54,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:54,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:06:54,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:06:56,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-14 17:06:56,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1026 transitions, 7334 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:56,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:56,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-14 17:06:56,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:07:00,640 INFO L124 PetriNetUnfolderBase]: 5069/15573 cut-off events. [2024-10-14 17:07:00,641 INFO L125 PetriNetUnfolderBase]: For 29397/29730 co-relation queries the response was YES. [2024-10-14 17:07:00,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52356 conditions, 15573 events. 5069/15573 cut-off events. For 29397/29730 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 134860 event pairs, 792 based on Foata normal form. 38/14883 useless extension candidates. Maximal degree in co-relation 52181. Up to 2883 conditions per place. [2024-10-14 17:07:00,820 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1340 selfloop transitions, 200 changer transitions 0/1759 dead transitions. [2024-10-14 17:07:00,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 1759 transitions, 16168 flow [2024-10-14 17:07:00,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-14 17:07:00,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-14 17:07:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3946 transitions. [2024-10-14 17:07:00,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.657009657009657 [2024-10-14 17:07:00,828 INFO L175 Difference]: Start difference. First operand has 374 places, 1026 transitions, 7334 flow. Second operand 22 states and 3946 transitions. [2024-10-14 17:07:00,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 1759 transitions, 16168 flow [2024-10-14 17:07:01,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1759 transitions, 15958 flow, removed 64 selfloop flow, removed 5 redundant places. [2024-10-14 17:07:01,030 INFO L231 Difference]: Finished difference. Result has 404 places, 1170 transitions, 9471 flow [2024-10-14 17:07:01,031 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=7194, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1026, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=9471, PETRI_PLACES=404, PETRI_TRANSITIONS=1170} [2024-10-14 17:07:01,034 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 130 predicate places. [2024-10-14 17:07:01,034 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 1170 transitions, 9471 flow [2024-10-14 17:07:01,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:07:01,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:07:01,036 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] [2024-10-14 17:07:01,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:07:01,039 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:07:01,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:07:01,039 INFO L85 PathProgramCache]: Analyzing trace with hash 578424137, now seen corresponding path program 1 times [2024-10-14 17:07:01,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:07:01,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002988054] [2024-10-14 17:07:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:07:01,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:07:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:07:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:07:01,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:07:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002988054] [2024-10-14 17:07:01,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002988054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:07:01,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:07:01,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:07:01,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64263117] [2024-10-14 17:07:01,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:07:01,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:07:01,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:07:01,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:07:01,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:07:03,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-14 17:07:03,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 1170 transitions, 9471 flow. Second operand has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:07:03,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:07:03,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-14 17:07:03,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:07:08,766 INFO L124 PetriNetUnfolderBase]: 6150/18399 cut-off events. [2024-10-14 17:07:08,766 INFO L125 PetriNetUnfolderBase]: For 47860/48234 co-relation queries the response was YES. [2024-10-14 17:07:08,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67252 conditions, 18399 events. 6150/18399 cut-off events. For 47860/48234 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 162462 event pairs, 1277 based on Foata normal form. 93/17663 useless extension candidates. Maximal degree in co-relation 67064. Up to 5066 conditions per place. [2024-10-14 17:07:08,912 INFO L140 encePairwiseOnDemand]: 221/273 looper letters, 1517 selfloop transitions, 209 changer transitions 0/1975 dead transitions. [2024-10-14 17:07:08,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1975 transitions, 20177 flow [2024-10-14 17:07:08,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-14 17:07:08,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-14 17:07:08,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3983 transitions. [2024-10-14 17:07:08,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6631701631701632 [2024-10-14 17:07:08,918 INFO L175 Difference]: Start difference. First operand has 404 places, 1170 transitions, 9471 flow. Second operand 22 states and 3983 transitions. [2024-10-14 17:07:08,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1975 transitions, 20177 flow [2024-10-14 17:07:09,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 1975 transitions, 19906 flow, removed 109 selfloop flow, removed 2 redundant places. [2024-10-14 17:07:09,352 INFO L231 Difference]: Finished difference. Result has 438 places, 1315 transitions, 11526 flow [2024-10-14 17:07:09,353 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=9268, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=998, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11526, PETRI_PLACES=438, PETRI_TRANSITIONS=1315} [2024-10-14 17:07:09,353 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 164 predicate places. [2024-10-14 17:07:09,353 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1315 transitions, 11526 flow [2024-10-14 17:07:09,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:07:09,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:07:09,354 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] [2024-10-14 17:07:09,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:07:09,355 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:07:09,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:07:09,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1516309818, now seen corresponding path program 3 times [2024-10-14 17:07:09,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:07:09,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90558579] [2024-10-14 17:07:09,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:07:09,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:07:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:07:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:07:10,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:07:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90558579] [2024-10-14 17:07:10,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90558579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:07:10,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:07:10,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:07:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74633180] [2024-10-14 17:07:10,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:07:10,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:07:10,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:07:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:07:10,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:07:11,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-14 17:07:11,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1315 transitions, 11526 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:07:11,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:07:11,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-14 17:07:11,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:07:17,231 INFO L124 PetriNetUnfolderBase]: 7136/21244 cut-off events. [2024-10-14 17:07:17,231 INFO L125 PetriNetUnfolderBase]: For 65009/65795 co-relation queries the response was YES. [2024-10-14 17:07:17,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82993 conditions, 21244 events. 7136/21244 cut-off events. For 65009/65795 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 193794 event pairs, 2002 based on Foata normal form. 104/20381 useless extension candidates. Maximal degree in co-relation 82786. Up to 10216 conditions per place. [2024-10-14 17:07:17,541 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1447 selfloop transitions, 208 changer transitions 0/1901 dead transitions. [2024-10-14 17:07:17,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 1901 transitions, 20196 flow [2024-10-14 17:07:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 17:07:17,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-14 17:07:17,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3044 transitions. [2024-10-14 17:07:17,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6558931264813618 [2024-10-14 17:07:17,545 INFO L175 Difference]: Start difference. First operand has 438 places, 1315 transitions, 11526 flow. Second operand 17 states and 3044 transitions. [2024-10-14 17:07:17,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 1901 transitions, 20196 flow [2024-10-14 17:07:18,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 1901 transitions, 20053 flow, removed 54 selfloop flow, removed 2 redundant places. [2024-10-14 17:07:18,315 INFO L231 Difference]: Finished difference. Result has 467 places, 1434 transitions, 14042 flow [2024-10-14 17:07:18,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=11471, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14042, PETRI_PLACES=467, PETRI_TRANSITIONS=1434} [2024-10-14 17:07:18,316 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 193 predicate places. [2024-10-14 17:07:18,316 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 1434 transitions, 14042 flow [2024-10-14 17:07:18,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:07:18,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:07:18,317 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] [2024-10-14 17:07:18,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:07:18,318 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:07:18,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:07:18,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1392137234, now seen corresponding path program 4 times [2024-10-14 17:07:18,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:07:18,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092070943] [2024-10-14 17:07:18,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:07:18,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:07:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:07:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:07:18,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:07:18,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092070943] [2024-10-14 17:07:18,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092070943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:07:18,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:07:18,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:07:18,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851662620] [2024-10-14 17:07:18,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:07:18,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:07:18,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:07:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:07:18,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:07:20,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-14 17:07:20,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1434 transitions, 14042 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:07:20,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:07:20,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-14 17:07:20,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:07:31,580 INFO L124 PetriNetUnfolderBase]: 12146/35011 cut-off events. [2024-10-14 17:07:31,580 INFO L125 PetriNetUnfolderBase]: For 147376/148630 co-relation queries the response was YES. [2024-10-14 17:07:31,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150468 conditions, 35011 events. 12146/35011 cut-off events. For 147376/148630 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 350995 event pairs, 2321 based on Foata normal form. 238/33942 useless extension candidates. Maximal degree in co-relation 150246. Up to 11999 conditions per place. [2024-10-14 17:07:32,040 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 2542 selfloop transitions, 389 changer transitions 0/3177 dead transitions. [2024-10-14 17:07:32,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 3177 transitions, 38983 flow [2024-10-14 17:07:32,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-14 17:07:32,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-10-14 17:07:32,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4862 transitions. [2024-10-14 17:07:32,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6596119929453262 [2024-10-14 17:07:32,045 INFO L175 Difference]: Start difference. First operand has 467 places, 1434 transitions, 14042 flow. Second operand 27 states and 4862 transitions. [2024-10-14 17:07:32,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 3177 transitions, 38983 flow [2024-10-14 17:07:33,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 3177 transitions, 38659 flow, removed 162 selfloop flow, removed 0 redundant places. [2024-10-14 17:07:33,791 INFO L231 Difference]: Finished difference. Result has 513 places, 1692 transitions, 19444 flow [2024-10-14 17:07:33,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=13726, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=19444, PETRI_PLACES=513, PETRI_TRANSITIONS=1692} [2024-10-14 17:07:33,793 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 239 predicate places. [2024-10-14 17:07:33,793 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 1692 transitions, 19444 flow [2024-10-14 17:07:33,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:07:33,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:07:33,797 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] [2024-10-14 17:07:33,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:07:33,797 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-14 17:07:33,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:07:33,798 INFO L85 PathProgramCache]: Analyzing trace with hash 554784608, now seen corresponding path program 5 times [2024-10-14 17:07:33,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:07:33,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052571926] [2024-10-14 17:07:33,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:07:33,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:07:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:07:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:07:34,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:07:34,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052571926] [2024-10-14 17:07:34,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052571926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:07:34,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:07:34,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:07:34,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362798427] [2024-10-14 17:07:34,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:07:34,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:07:34,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:07:34,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:07:34,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:07:36,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-14 17:07:36,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1692 transitions, 19444 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:07:36,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:07:36,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-14 17:07:36,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand