/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:26:00,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:26:00,152 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 03:26:00,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:26:00,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:26:00,184 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:26:00,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:26:00,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:26:00,186 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:26:00,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:26:00,189 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:26:00,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:26:00,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:26:00,190 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:26:00,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:26:00,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:26:00,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:26:00,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:26:00,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:26:00,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:26:00,191 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:26:00,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:26:00,192 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:26:00,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:26:00,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:26:00,193 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:26:00,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:26:00,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:26:00,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:26:00,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:26:00,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:26:00,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:26:00,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:26:00,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:26:00,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:26:00,195 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:26:00,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:26:00,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:26:00,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:26:00,446 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:26:00,446 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:26:00,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i [2023-08-25 03:26:01,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:26:01,787 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:26:01,788 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i [2023-08-25 03:26:01,803 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc9ba06e4/625b736198b14e8688bf7846f48b2a07/FLAG82542ad85 [2023-08-25 03:26:01,816 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc9ba06e4/625b736198b14e8688bf7846f48b2a07 [2023-08-25 03:26:01,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:26:01,822 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:26:01,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:26:01,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:26:01,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:26:01,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:26:01" (1/1) ... [2023-08-25 03:26:01,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f52f420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:01, skipping insertion in model container [2023-08-25 03:26:01,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:26:01" (1/1) ... [2023-08-25 03:26:01,872 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:26:02,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:26:02,261 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:26:02,283 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:26:02,285 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:26:02,299 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-25 03:26:02,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:26:02,389 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:26:02,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02 WrapperNode [2023-08-25 03:26:02,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:26:02,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:26:02,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:26:02,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:26:02,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,458 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-08-25 03:26:02,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:26:02,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:26:02,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:26:02,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:26:02,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:26:02,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:26:02,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:26:02,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:26:02,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (1/1) ... [2023-08-25 03:26:02,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:26:02,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:26:02,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 03:26:02,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 03:26:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:26:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 03:26:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:26:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:26:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:26:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:26:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 03:26:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:26:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 03:26:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:26:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:26:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:26:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:26:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:26:02,558 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:26:02,692 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:26:02,693 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:26:02,969 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:26:02,974 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:26:02,974 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:26:02,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:26:02 BoogieIcfgContainer [2023-08-25 03:26:02,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:26:02,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:26:02,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:26:02,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:26:02,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:26:01" (1/3) ... [2023-08-25 03:26:02,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684beafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:26:02, skipping insertion in model container [2023-08-25 03:26:02,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:26:02" (2/3) ... [2023-08-25 03:26:02,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684beafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:26:02, skipping insertion in model container [2023-08-25 03:26:02,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:26:02" (3/3) ... [2023-08-25 03:26:02,981 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2023-08-25 03:26:02,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:26:02,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-25 03:26:02,992 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:26:03,059 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:26:03,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 194 transitions, 393 flow [2023-08-25 03:26:03,146 INFO L124 PetriNetUnfolderBase]: 0/193 cut-off events. [2023-08-25 03:26:03,147 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:26:03,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 193 events. 0/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:26:03,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 194 transitions, 393 flow [2023-08-25 03:26:03,153 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 193 transitions, 389 flow [2023-08-25 03:26:03,155 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:26:03,163 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 193 transitions, 389 flow [2023-08-25 03:26:03,166 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 193 transitions, 389 flow [2023-08-25 03:26:03,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 193 transitions, 389 flow [2023-08-25 03:26:03,216 INFO L124 PetriNetUnfolderBase]: 0/193 cut-off events. [2023-08-25 03:26:03,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:26:03,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 193 events. 0/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:26:03,218 INFO L119 LiptonReduction]: Number of co-enabled transitions 4092 [2023-08-25 03:26:50,919 WARN L234 SmtUtils]: Spent 21.07s on a formula simplification that was a NOOP. DAG size: 287 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:27:02,025 WARN L234 SmtUtils]: Spent 11.10s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:27:12,992 WARN L234 SmtUtils]: Spent 10.96s on a formula simplification that was a NOOP. DAG size: 287 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:27:17,549 INFO L134 LiptonReduction]: Checked pairs total: 34878 [2023-08-25 03:27:17,549 INFO L136 LiptonReduction]: Total number of compositions: 155 [2023-08-25 03:27:17,557 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:27:17,560 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a8ddccb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:27:17,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-25 03:27:17,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:27:17,561 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 03:27:17,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:27:17,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:17,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 03:27:17,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:17,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:17,565 INFO L85 PathProgramCache]: Analyzing trace with hash 632, now seen corresponding path program 1 times [2023-08-25 03:27:17,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:17,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123310982] [2023-08-25 03:27:17,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:17,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:17,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:17,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:17,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123310982] [2023-08-25 03:27:17,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123310982] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:17,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:17,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 03:27:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885382799] [2023-08-25 03:27:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:17,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 03:27:17,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:17,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 03:27:17,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 03:27:17,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 349 [2023-08-25 03:27:17,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:17,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:17,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 349 [2023-08-25 03:27:17,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:17,920 INFO L124 PetriNetUnfolderBase]: 78/405 cut-off events. [2023-08-25 03:27:17,920 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:27:17,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 405 events. 78/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1920 event pairs, 78 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 578. Up to 178 conditions per place. [2023-08-25 03:27:17,927 INFO L140 encePairwiseOnDemand]: 341/349 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-25 03:27:17,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2023-08-25 03:27:17,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 03:27:17,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 03:27:17,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 415 transitions. [2023-08-25 03:27:17,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5945558739255015 [2023-08-25 03:27:17,942 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 415 transitions. [2023-08-25 03:27:17,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 415 transitions. [2023-08-25 03:27:17,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:17,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 415 transitions. [2023-08-25 03:27:17,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 207.5) internal successors, (415), 2 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:17,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:17,951 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:17,952 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 415 transitions. [2023-08-25 03:27:17,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2023-08-25 03:27:17,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:27:17,956 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-25 03:27:17,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-25 03:27:17,959 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2023-08-25 03:27:17,959 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-25 03:27:17,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:17,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:17,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 03:27:17,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:27:17,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:17,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:17,960 INFO L85 PathProgramCache]: Analyzing trace with hash 607996781, now seen corresponding path program 1 times [2023-08-25 03:27:17,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:17,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306772447] [2023-08-25 03:27:17,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:17,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:18,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:18,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306772447] [2023-08-25 03:27:18,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306772447] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:18,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:18,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:27:18,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714746060] [2023-08-25 03:27:18,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:18,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:27:18,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:18,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:27:18,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:27:18,155 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 349 [2023-08-25 03:27:18,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:18,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:18,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 349 [2023-08-25 03:27:18,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:18,397 INFO L124 PetriNetUnfolderBase]: 119/489 cut-off events. [2023-08-25 03:27:18,397 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:27:18,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 489 events. 119/489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2352 event pairs, 119 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 755. Up to 264 conditions per place. [2023-08-25 03:27:18,400 INFO L140 encePairwiseOnDemand]: 345/349 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-25 03:27:18,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2023-08-25 03:27:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:27:18,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:27:18,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2023-08-25 03:27:18,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291308500477555 [2023-08-25 03:27:18,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 554 transitions. [2023-08-25 03:27:18,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 554 transitions. [2023-08-25 03:27:18,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:18,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 554 transitions. [2023-08-25 03:27:18,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:18,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:18,407 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:18,407 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 554 transitions. [2023-08-25 03:27:18,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2023-08-25 03:27:18,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:27:18,410 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-25 03:27:18,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-25 03:27:18,412 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2023-08-25 03:27:18,412 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-25 03:27:18,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:18,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:18,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:18,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:27:18,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:18,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:18,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2109094868, now seen corresponding path program 1 times [2023-08-25 03:27:18,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:18,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54363166] [2023-08-25 03:27:18,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:18,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:18,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:18,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54363166] [2023-08-25 03:27:18,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54363166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:18,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:18,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:27:18,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365112708] [2023-08-25 03:27:18,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:18,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:27:18,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:18,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:27:18,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:27:18,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 349 [2023-08-25 03:27:18,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:18,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:18,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 349 [2023-08-25 03:27:18,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:19,765 INFO L124 PetriNetUnfolderBase]: 665/1475 cut-off events. [2023-08-25 03:27:19,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:27:19,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 1475 events. 665/1475 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6978 event pairs, 534 based on Foata normal form. 0/1303 useless extension candidates. Maximal degree in co-relation 2867. Up to 1282 conditions per place. [2023-08-25 03:27:19,772 INFO L140 encePairwiseOnDemand]: 335/349 looper letters, 90 selfloop transitions, 37 changer transitions 0/134 dead transitions. [2023-08-25 03:27:19,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 134 transitions, 526 flow [2023-08-25 03:27:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:27:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:27:19,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2023-08-25 03:27:19,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39063992359121297 [2023-08-25 03:27:19,775 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 818 transitions. [2023-08-25 03:27:19,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 818 transitions. [2023-08-25 03:27:19,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:19,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 818 transitions. [2023-08-25 03:27:19,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:19,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:19,780 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:19,780 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 818 transitions. [2023-08-25 03:27:19,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 134 transitions, 526 flow [2023-08-25 03:27:19,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 134 transitions, 525 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:27:19,784 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-25 03:27:19,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-25 03:27:19,785 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2023-08-25 03:27:19,785 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-25 03:27:19,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:19,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:19,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:19,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:27:19,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:19,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:19,787 INFO L85 PathProgramCache]: Analyzing trace with hash -6498235, now seen corresponding path program 1 times [2023-08-25 03:27:19,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:19,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492119449] [2023-08-25 03:27:19,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:19,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:20,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:20,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492119449] [2023-08-25 03:27:20,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492119449] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:20,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:20,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:27:20,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522567824] [2023-08-25 03:27:20,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:20,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:27:20,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:20,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:27:20,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:27:20,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 349 [2023-08-25 03:27:20,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 115.66666666666667) internal successors, (694), 6 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:20,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:20,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 349 [2023-08-25 03:27:20,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:21,276 INFO L124 PetriNetUnfolderBase]: 1164/2546 cut-off events. [2023-08-25 03:27:21,276 INFO L125 PetriNetUnfolderBase]: For 426/426 co-relation queries the response was YES. [2023-08-25 03:27:21,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5936 conditions, 2546 events. 1164/2546 cut-off events. For 426/426 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14372 event pairs, 137 based on Foata normal form. 0/2256 useless extension candidates. Maximal degree in co-relation 5928. Up to 1227 conditions per place. [2023-08-25 03:27:21,289 INFO L140 encePairwiseOnDemand]: 321/349 looper letters, 215 selfloop transitions, 77 changer transitions 0/298 dead transitions. [2023-08-25 03:27:21,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 298 transitions, 1466 flow [2023-08-25 03:27:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:27:21,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:27:21,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 934 transitions. [2023-08-25 03:27:21,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44603629417383 [2023-08-25 03:27:21,292 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 934 transitions. [2023-08-25 03:27:21,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 934 transitions. [2023-08-25 03:27:21,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:21,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 934 transitions. [2023-08-25 03:27:21,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:21,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:21,298 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:21,298 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 934 transitions. [2023-08-25 03:27:21,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 298 transitions, 1466 flow [2023-08-25 03:27:21,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 298 transitions, 1466 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:27:21,311 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-25 03:27:21,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-25 03:27:21,313 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2023-08-25 03:27:21,313 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-25 03:27:21,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.66666666666667) internal successors, (694), 6 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:21,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:21,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:21,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:27:21,314 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:21,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:21,315 INFO L85 PathProgramCache]: Analyzing trace with hash -558834508, now seen corresponding path program 1 times [2023-08-25 03:27:21,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:21,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18258318] [2023-08-25 03:27:21,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:21,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:21,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18258318] [2023-08-25 03:27:21,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18258318] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:21,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:21,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:21,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630915432] [2023-08-25 03:27:21,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:21,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:21,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:21,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:21,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:21,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 349 [2023-08-25 03:27:21,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 98.3) internal successors, (983), 10 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:21,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:21,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 349 [2023-08-25 03:27:21,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:23,121 INFO L124 PetriNetUnfolderBase]: 1184/2614 cut-off events. [2023-08-25 03:27:23,121 INFO L125 PetriNetUnfolderBase]: For 1926/1926 co-relation queries the response was YES. [2023-08-25 03:27:23,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7833 conditions, 2614 events. 1184/2614 cut-off events. For 1926/1926 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 14668 event pairs, 487 based on Foata normal form. 0/2446 useless extension candidates. Maximal degree in co-relation 7820. Up to 2067 conditions per place. [2023-08-25 03:27:23,133 INFO L140 encePairwiseOnDemand]: 335/349 looper letters, 306 selfloop transitions, 64 changer transitions 4/379 dead transitions. [2023-08-25 03:27:23,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 379 transitions, 2581 flow [2023-08-25 03:27:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 03:27:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 03:27:23,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1696 transitions. [2023-08-25 03:27:23,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3239732569245463 [2023-08-25 03:27:23,137 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1696 transitions. [2023-08-25 03:27:23,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1696 transitions. [2023-08-25 03:27:23,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:23,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1696 transitions. [2023-08-25 03:27:23,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 113.06666666666666) internal successors, (1696), 15 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:23,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:23,149 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:23,149 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 1696 transitions. [2023-08-25 03:27:23,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 379 transitions, 2581 flow [2023-08-25 03:27:23,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 379 transitions, 2563 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-25 03:27:23,163 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-25 03:27:23,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-25 03:27:23,165 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2023-08-25 03:27:23,165 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-25 03:27:23,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.3) internal successors, (983), 10 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:23,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:23,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:23,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:27:23,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:23,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:23,166 INFO L85 PathProgramCache]: Analyzing trace with hash -305976718, now seen corresponding path program 1 times [2023-08-25 03:27:23,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:23,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892365807] [2023-08-25 03:27:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:23,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:23,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892365807] [2023-08-25 03:27:23,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892365807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:23,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:23,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:23,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637782109] [2023-08-25 03:27:23,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:23,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:23,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:23,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:23,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:23,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:23,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:23,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:23,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:23,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:25,350 INFO L124 PetriNetUnfolderBase]: 1580/3498 cut-off events. [2023-08-25 03:27:25,350 INFO L125 PetriNetUnfolderBase]: For 3376/3380 co-relation queries the response was YES. [2023-08-25 03:27:25,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11330 conditions, 3498 events. 1580/3498 cut-off events. For 3376/3380 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 21627 event pairs, 221 based on Foata normal form. 19/3271 useless extension candidates. Maximal degree in co-relation 11311. Up to 1183 conditions per place. [2023-08-25 03:27:25,368 INFO L140 encePairwiseOnDemand]: 317/349 looper letters, 394 selfloop transitions, 121 changer transitions 4/524 dead transitions. [2023-08-25 03:27:25,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 524 transitions, 3854 flow [2023-08-25 03:27:25,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 03:27:25,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 03:27:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1570 transitions. [2023-08-25 03:27:25,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3748806112702961 [2023-08-25 03:27:25,372 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1570 transitions. [2023-08-25 03:27:25,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1570 transitions. [2023-08-25 03:27:25,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:25,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1570 transitions. [2023-08-25 03:27:25,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.83333333333334) internal successors, (1570), 12 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:25,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 349.0) internal successors, (4537), 13 states have internal predecessors, (4537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:25,380 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 349.0) internal successors, (4537), 13 states have internal predecessors, (4537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:25,380 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 1570 transitions. [2023-08-25 03:27:25,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 524 transitions, 3854 flow [2023-08-25 03:27:25,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 524 transitions, 3842 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-25 03:27:25,396 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2023-08-25 03:27:25,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2023-08-25 03:27:25,398 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2023-08-25 03:27:25,398 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2023-08-25 03:27:25,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:25,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:25,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:25,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:27:25,399 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:25,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:25,399 INFO L85 PathProgramCache]: Analyzing trace with hash -126679612, now seen corresponding path program 2 times [2023-08-25 03:27:25,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:25,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652314354] [2023-08-25 03:27:25,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:25,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:25,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:25,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:25,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652314354] [2023-08-25 03:27:25,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652314354] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:25,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:25,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:25,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266850321] [2023-08-25 03:27:25,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:25,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:25,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:25,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:25,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:25,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:25,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:25,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:25,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:25,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:28,188 INFO L124 PetriNetUnfolderBase]: 1748/3856 cut-off events. [2023-08-25 03:27:28,188 INFO L125 PetriNetUnfolderBase]: For 7835/7849 co-relation queries the response was YES. [2023-08-25 03:27:28,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14341 conditions, 3856 events. 1748/3856 cut-off events. For 7835/7849 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 24211 event pairs, 379 based on Foata normal form. 35/3616 useless extension candidates. Maximal degree in co-relation 14312. Up to 2104 conditions per place. [2023-08-25 03:27:28,218 INFO L140 encePairwiseOnDemand]: 328/349 looper letters, 482 selfloop transitions, 95 changer transitions 6/588 dead transitions. [2023-08-25 03:27:28,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 588 transitions, 5119 flow [2023-08-25 03:27:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 03:27:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 03:27:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2152 transitions. [2023-08-25 03:27:28,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3425660617637695 [2023-08-25 03:27:28,224 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2152 transitions. [2023-08-25 03:27:28,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2152 transitions. [2023-08-25 03:27:28,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:28,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2152 transitions. [2023-08-25 03:27:28,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.55555555555556) internal successors, (2152), 18 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:28,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:28,236 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:28,236 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 18 states and 2152 transitions. [2023-08-25 03:27:28,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 588 transitions, 5119 flow [2023-08-25 03:27:28,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 588 transitions, 5107 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-25 03:27:28,271 INFO L231 Difference]: Finished difference. Result has 148 places, 301 transitions, 2901 flow [2023-08-25 03:27:28,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2901, PETRI_PLACES=148, PETRI_TRANSITIONS=301} [2023-08-25 03:27:28,272 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 71 predicate places. [2023-08-25 03:27:28,273 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 301 transitions, 2901 flow [2023-08-25 03:27:28,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:28,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:28,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:28,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:27:28,273 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:28,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash -87906598, now seen corresponding path program 3 times [2023-08-25 03:27:28,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:28,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085485524] [2023-08-25 03:27:28,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:28,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:28,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:28,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085485524] [2023-08-25 03:27:28,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085485524] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:28,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:28,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:28,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511497906] [2023-08-25 03:27:28,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:28,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:28,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:28,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:28,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:28,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:28,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 301 transitions, 2901 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:28,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:28,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:28,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:31,024 INFO L124 PetriNetUnfolderBase]: 2156/4793 cut-off events. [2023-08-25 03:27:31,025 INFO L125 PetriNetUnfolderBase]: For 14327/14348 co-relation queries the response was YES. [2023-08-25 03:27:31,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19456 conditions, 4793 events. 2156/4793 cut-off events. For 14327/14348 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 32020 event pairs, 300 based on Foata normal form. 32/4469 useless extension candidates. Maximal degree in co-relation 19421. Up to 1515 conditions per place. [2023-08-25 03:27:31,059 INFO L140 encePairwiseOnDemand]: 317/349 looper letters, 455 selfloop transitions, 162 changer transitions 4/626 dead transitions. [2023-08-25 03:27:31,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 626 transitions, 6125 flow [2023-08-25 03:27:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 03:27:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 03:27:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1674 transitions. [2023-08-25 03:27:31,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3689662772757329 [2023-08-25 03:27:31,063 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1674 transitions. [2023-08-25 03:27:31,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1674 transitions. [2023-08-25 03:27:31,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:31,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1674 transitions. [2023-08-25 03:27:31,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 128.76923076923077) internal successors, (1674), 13 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:31,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:31,070 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:31,071 INFO L175 Difference]: Start difference. First operand has 148 places, 301 transitions, 2901 flow. Second operand 13 states and 1674 transitions. [2023-08-25 03:27:31,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 626 transitions, 6125 flow [2023-08-25 03:27:31,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 626 transitions, 6113 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 03:27:31,128 INFO L231 Difference]: Finished difference. Result has 169 places, 354 transitions, 4241 flow [2023-08-25 03:27:31,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=2891, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4241, PETRI_PLACES=169, PETRI_TRANSITIONS=354} [2023-08-25 03:27:31,129 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 92 predicate places. [2023-08-25 03:27:31,129 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 354 transitions, 4241 flow [2023-08-25 03:27:31,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:31,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:31,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:31,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 03:27:31,130 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:31,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:31,130 INFO L85 PathProgramCache]: Analyzing trace with hash -220077052, now seen corresponding path program 4 times [2023-08-25 03:27:31,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:31,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882456039] [2023-08-25 03:27:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:31,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:31,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:31,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:31,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882456039] [2023-08-25 03:27:31,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882456039] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:31,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:31,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:31,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596543804] [2023-08-25 03:27:31,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:31,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:31,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:31,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:31,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:31,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:31,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 354 transitions, 4241 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:31,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:31,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:31,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:34,154 INFO L124 PetriNetUnfolderBase]: 3179/7034 cut-off events. [2023-08-25 03:27:34,154 INFO L125 PetriNetUnfolderBase]: For 31713/31799 co-relation queries the response was YES. [2023-08-25 03:27:34,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31248 conditions, 7034 events. 3179/7034 cut-off events. For 31713/31799 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 52169 event pairs, 437 based on Foata normal form. 64/6563 useless extension candidates. Maximal degree in co-relation 31203. Up to 2029 conditions per place. [2023-08-25 03:27:34,328 INFO L140 encePairwiseOnDemand]: 321/349 looper letters, 570 selfloop transitions, 262 changer transitions 6/843 dead transitions. [2023-08-25 03:27:34,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 843 transitions, 10146 flow [2023-08-25 03:27:34,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 03:27:34,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 03:27:34,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1978 transitions. [2023-08-25 03:27:34,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3542263610315186 [2023-08-25 03:27:34,336 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1978 transitions. [2023-08-25 03:27:34,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1978 transitions. [2023-08-25 03:27:34,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:34,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1978 transitions. [2023-08-25 03:27:34,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.625) internal successors, (1978), 16 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:34,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:34,345 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:34,345 INFO L175 Difference]: Start difference. First operand has 169 places, 354 transitions, 4241 flow. Second operand 16 states and 1978 transitions. [2023-08-25 03:27:34,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 843 transitions, 10146 flow [2023-08-25 03:27:34,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 843 transitions, 10102 flow, removed 14 selfloop flow, removed 1 redundant places. [2023-08-25 03:27:34,520 INFO L231 Difference]: Finished difference. Result has 193 places, 486 transitions, 7269 flow [2023-08-25 03:27:34,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=4217, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7269, PETRI_PLACES=193, PETRI_TRANSITIONS=486} [2023-08-25 03:27:34,521 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 116 predicate places. [2023-08-25 03:27:34,521 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 486 transitions, 7269 flow [2023-08-25 03:27:34,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:34,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:34,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:34,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 03:27:34,522 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:34,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash -994184910, now seen corresponding path program 5 times [2023-08-25 03:27:34,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:34,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345245731] [2023-08-25 03:27:34,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:34,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:34,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:34,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:34,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345245731] [2023-08-25 03:27:34,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345245731] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:34,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:34,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:34,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834370044] [2023-08-25 03:27:34,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:34,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:34,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:34,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:34,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:34,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:34,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 486 transitions, 7269 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:34,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:34,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:34,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:38,250 INFO L124 PetriNetUnfolderBase]: 3932/8700 cut-off events. [2023-08-25 03:27:38,251 INFO L125 PetriNetUnfolderBase]: For 59484/59638 co-relation queries the response was YES. [2023-08-25 03:27:38,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42318 conditions, 8700 events. 3932/8700 cut-off events. For 59484/59638 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 67881 event pairs, 792 based on Foata normal form. 118/8150 useless extension candidates. Maximal degree in co-relation 42263. Up to 3511 conditions per place. [2023-08-25 03:27:38,344 INFO L140 encePairwiseOnDemand]: 317/349 looper letters, 566 selfloop transitions, 315 changer transitions 4/890 dead transitions. [2023-08-25 03:27:38,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 890 transitions, 12717 flow [2023-08-25 03:27:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 03:27:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 03:27:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1766 transitions. [2023-08-25 03:27:38,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3614408514121981 [2023-08-25 03:27:38,362 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1766 transitions. [2023-08-25 03:27:38,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1766 transitions. [2023-08-25 03:27:38,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:38,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1766 transitions. [2023-08-25 03:27:38,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 126.14285714285714) internal successors, (1766), 14 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:38,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:38,381 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:38,381 INFO L175 Difference]: Start difference. First operand has 193 places, 486 transitions, 7269 flow. Second operand 14 states and 1766 transitions. [2023-08-25 03:27:38,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 890 transitions, 12717 flow [2023-08-25 03:27:38,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 890 transitions, 12633 flow, removed 35 selfloop flow, removed 3 redundant places. [2023-08-25 03:27:38,759 INFO L231 Difference]: Finished difference. Result has 215 places, 586 transitions, 10282 flow [2023-08-25 03:27:38,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=7197, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10282, PETRI_PLACES=215, PETRI_TRANSITIONS=586} [2023-08-25 03:27:38,760 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 138 predicate places. [2023-08-25 03:27:38,760 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 586 transitions, 10282 flow [2023-08-25 03:27:38,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:38,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:38,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:38,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 03:27:38,761 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:38,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:38,761 INFO L85 PathProgramCache]: Analyzing trace with hash -537716208, now seen corresponding path program 6 times [2023-08-25 03:27:38,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:38,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750645734] [2023-08-25 03:27:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:38,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:39,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:39,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:39,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750645734] [2023-08-25 03:27:39,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750645734] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:39,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:39,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:39,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320010666] [2023-08-25 03:27:39,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:39,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:39,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:39,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:39,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:39,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:39,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 586 transitions, 10282 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:39,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:39,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:39,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:42,727 INFO L124 PetriNetUnfolderBase]: 4366/9681 cut-off events. [2023-08-25 03:27:42,727 INFO L125 PetriNetUnfolderBase]: For 89297/89511 co-relation queries the response was YES. [2023-08-25 03:27:42,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50594 conditions, 9681 events. 4366/9681 cut-off events. For 89297/89511 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 77623 event pairs, 712 based on Foata normal form. 157/9090 useless extension candidates. Maximal degree in co-relation 50528. Up to 3178 conditions per place. [2023-08-25 03:27:42,801 INFO L140 encePairwiseOnDemand]: 321/349 looper letters, 598 selfloop transitions, 400 changer transitions 6/1009 dead transitions. [2023-08-25 03:27:42,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 1009 transitions, 15833 flow [2023-08-25 03:27:42,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 03:27:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 03:27:42,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2227 transitions. [2023-08-25 03:27:42,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3545049347341611 [2023-08-25 03:27:42,804 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2227 transitions. [2023-08-25 03:27:42,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2227 transitions. [2023-08-25 03:27:42,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:42,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2227 transitions. [2023-08-25 03:27:42,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 123.72222222222223) internal successors, (2227), 18 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:42,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:42,812 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:42,812 INFO L175 Difference]: Start difference. First operand has 215 places, 586 transitions, 10282 flow. Second operand 18 states and 2227 transitions. [2023-08-25 03:27:42,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 1009 transitions, 15833 flow [2023-08-25 03:27:43,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 1009 transitions, 15779 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-08-25 03:27:43,561 INFO L231 Difference]: Finished difference. Result has 244 places, 666 transitions, 13503 flow [2023-08-25 03:27:43,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=10240, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13503, PETRI_PLACES=244, PETRI_TRANSITIONS=666} [2023-08-25 03:27:43,562 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 167 predicate places. [2023-08-25 03:27:43,562 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 666 transitions, 13503 flow [2023-08-25 03:27:43,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:43,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:43,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:43,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 03:27:43,563 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:43,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash 67900634, now seen corresponding path program 7 times [2023-08-25 03:27:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229046343] [2023-08-25 03:27:43,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:43,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:43,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:43,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229046343] [2023-08-25 03:27:43,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229046343] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:43,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:43,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:43,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002236543] [2023-08-25 03:27:43,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:43,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:43,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:43,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:43,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:43,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:43,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 666 transitions, 13503 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:43,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:43,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:43,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:48,030 INFO L124 PetriNetUnfolderBase]: 5059/11202 cut-off events. [2023-08-25 03:27:48,030 INFO L125 PetriNetUnfolderBase]: For 139511/139792 co-relation queries the response was YES. [2023-08-25 03:27:48,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63235 conditions, 11202 events. 5059/11202 cut-off events. For 139511/139792 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 92629 event pairs, 1050 based on Foata normal form. 188/10512 useless extension candidates. Maximal degree in co-relation 63156. Up to 4721 conditions per place. [2023-08-25 03:27:48,126 INFO L140 encePairwiseOnDemand]: 317/349 looper letters, 661 selfloop transitions, 403 changer transitions 4/1073 dead transitions. [2023-08-25 03:27:48,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 1073 transitions, 20398 flow [2023-08-25 03:27:48,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 03:27:48,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 03:27:48,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1742 transitions. [2023-08-25 03:27:48,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3565288579615227 [2023-08-25 03:27:48,129 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1742 transitions. [2023-08-25 03:27:48,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1742 transitions. [2023-08-25 03:27:48,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:48,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1742 transitions. [2023-08-25 03:27:48,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.42857142857143) internal successors, (1742), 14 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:48,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:48,135 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:48,135 INFO L175 Difference]: Start difference. First operand has 244 places, 666 transitions, 13503 flow. Second operand 14 states and 1742 transitions. [2023-08-25 03:27:48,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 1073 transitions, 20398 flow [2023-08-25 03:27:49,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 1073 transitions, 20326 flow, removed 25 selfloop flow, removed 5 redundant places. [2023-08-25 03:27:49,217 INFO L231 Difference]: Finished difference. Result has 264 places, 760 transitions, 17397 flow [2023-08-25 03:27:49,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=13450, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17397, PETRI_PLACES=264, PETRI_TRANSITIONS=760} [2023-08-25 03:27:49,218 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 187 predicate places. [2023-08-25 03:27:49,218 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 760 transitions, 17397 flow [2023-08-25 03:27:49,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:49,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:49,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:49,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 03:27:49,218 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:49,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:49,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1300001976, now seen corresponding path program 8 times [2023-08-25 03:27:49,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:49,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719124471] [2023-08-25 03:27:49,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:49,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:49,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719124471] [2023-08-25 03:27:49,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719124471] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:49,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:49,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534015360] [2023-08-25 03:27:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:49,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:49,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:49,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:49,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 760 transitions, 17397 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:49,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:49,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:49,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:27:54,181 INFO L124 PetriNetUnfolderBase]: 5443/12011 cut-off events. [2023-08-25 03:27:54,181 INFO L125 PetriNetUnfolderBase]: For 188323/188687 co-relation queries the response was YES. [2023-08-25 03:27:54,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71762 conditions, 12011 events. 5443/12011 cut-off events. For 188323/188687 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 101123 event pairs, 849 based on Foata normal form. 273/11324 useless extension candidates. Maximal degree in co-relation 71672. Up to 3547 conditions per place. [2023-08-25 03:27:54,287 INFO L140 encePairwiseOnDemand]: 321/349 looper letters, 676 selfloop transitions, 477 changer transitions 6/1164 dead transitions. [2023-08-25 03:27:54,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 1164 transitions, 23606 flow [2023-08-25 03:27:54,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-25 03:27:54,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-25 03:27:54,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2102 transitions. [2023-08-25 03:27:54,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35428956682959717 [2023-08-25 03:27:54,289 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2102 transitions. [2023-08-25 03:27:54,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2102 transitions. [2023-08-25 03:27:54,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:27:54,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2102 transitions. [2023-08-25 03:27:54,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 123.6470588235294) internal successors, (2102), 17 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:54,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:54,296 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:54,296 INFO L175 Difference]: Start difference. First operand has 264 places, 760 transitions, 17397 flow. Second operand 17 states and 2102 transitions. [2023-08-25 03:27:54,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 1164 transitions, 23606 flow [2023-08-25 03:27:55,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 1164 transitions, 23524 flow, removed 41 selfloop flow, removed 0 redundant places. [2023-08-25 03:27:56,008 INFO L231 Difference]: Finished difference. Result has 291 places, 825 transitions, 20954 flow [2023-08-25 03:27:56,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=17325, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20954, PETRI_PLACES=291, PETRI_TRANSITIONS=825} [2023-08-25 03:27:56,009 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 214 predicate places. [2023-08-25 03:27:56,009 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 825 transitions, 20954 flow [2023-08-25 03:27:56,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:56,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:27:56,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:27:56,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 03:27:56,010 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:27:56,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:27:56,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1012024290, now seen corresponding path program 9 times [2023-08-25 03:27:56,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:27:56,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183350044] [2023-08-25 03:27:56,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:27:56,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:27:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:27:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:27:56,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:27:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183350044] [2023-08-25 03:27:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183350044] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:27:56,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:27:56,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:27:56,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948556519] [2023-08-25 03:27:56,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:27:56,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:27:56,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:27:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:27:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:27:56,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:27:56,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 825 transitions, 20954 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:27:56,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:27:56,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:27:56,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:28:02,192 INFO L124 PetriNetUnfolderBase]: 5884/12965 cut-off events. [2023-08-25 03:28:02,192 INFO L125 PetriNetUnfolderBase]: For 255854/256307 co-relation queries the response was YES. [2023-08-25 03:28:02,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82381 conditions, 12965 events. 5884/12965 cut-off events. For 255854/256307 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 111084 event pairs, 803 based on Foata normal form. 324/12242 useless extension candidates. Maximal degree in co-relation 82279. Up to 4542 conditions per place. [2023-08-25 03:28:02,362 INFO L140 encePairwiseOnDemand]: 318/349 looper letters, 610 selfloop transitions, 560 changer transitions 4/1179 dead transitions. [2023-08-25 03:28:02,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1179 transitions, 27713 flow [2023-08-25 03:28:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 03:28:02,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 03:28:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1727 transitions. [2023-08-25 03:28:02,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3534588620548506 [2023-08-25 03:28:02,382 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1727 transitions. [2023-08-25 03:28:02,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1727 transitions. [2023-08-25 03:28:02,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:28:02,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1727 transitions. [2023-08-25 03:28:02,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 123.35714285714286) internal successors, (1727), 14 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:02,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:02,389 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:02,389 INFO L175 Difference]: Start difference. First operand has 291 places, 825 transitions, 20954 flow. Second operand 14 states and 1727 transitions. [2023-08-25 03:28:02,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1179 transitions, 27713 flow [2023-08-25 03:28:04,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 1179 transitions, 27639 flow, removed 28 selfloop flow, removed 4 redundant places. [2023-08-25 03:28:04,378 INFO L231 Difference]: Finished difference. Result has 312 places, 894 transitions, 25296 flow [2023-08-25 03:28:04,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=20888, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=825, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25296, PETRI_PLACES=312, PETRI_TRANSITIONS=894} [2023-08-25 03:28:04,378 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 235 predicate places. [2023-08-25 03:28:04,379 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 894 transitions, 25296 flow [2023-08-25 03:28:04,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:04,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:28:04,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:28:04,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 03:28:04,379 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:28:04,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:28:04,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1298277360, now seen corresponding path program 10 times [2023-08-25 03:28:04,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:28:04,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570432547] [2023-08-25 03:28:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:28:04,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:28:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:28:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:28:04,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:28:04,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570432547] [2023-08-25 03:28:04,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570432547] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:28:04,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:28:04,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:28:04,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782574621] [2023-08-25 03:28:04,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:28:04,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:28:04,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:28:04,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:28:04,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:28:04,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:28:04,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 894 transitions, 25296 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:04,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:28:04,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:28:04,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:28:10,448 INFO L124 PetriNetUnfolderBase]: 6279/13857 cut-off events. [2023-08-25 03:28:10,448 INFO L125 PetriNetUnfolderBase]: For 339014/339467 co-relation queries the response was YES. [2023-08-25 03:28:10,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92992 conditions, 13857 events. 6279/13857 cut-off events. For 339014/339467 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 120633 event pairs, 909 based on Foata normal form. 334/13064 useless extension candidates. Maximal degree in co-relation 92879. Up to 5072 conditions per place. [2023-08-25 03:28:10,621 INFO L140 encePairwiseOnDemand]: 320/349 looper letters, 564 selfloop transitions, 595 changer transitions 4/1168 dead transitions. [2023-08-25 03:28:10,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1168 transitions, 30888 flow [2023-08-25 03:28:10,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 03:28:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 03:28:10,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1587 transitions. [2023-08-25 03:28:10,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34979061053559624 [2023-08-25 03:28:10,623 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1587 transitions. [2023-08-25 03:28:10,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1587 transitions. [2023-08-25 03:28:10,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:28:10,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1587 transitions. [2023-08-25 03:28:10,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 122.07692307692308) internal successors, (1587), 13 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:10,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:10,628 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:10,628 INFO L175 Difference]: Start difference. First operand has 312 places, 894 transitions, 25296 flow. Second operand 13 states and 1587 transitions. [2023-08-25 03:28:10,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1168 transitions, 30888 flow [2023-08-25 03:28:13,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 1168 transitions, 30714 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-08-25 03:28:13,423 INFO L231 Difference]: Finished difference. Result has 334 places, 940 transitions, 29146 flow [2023-08-25 03:28:13,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=25148, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=549, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29146, PETRI_PLACES=334, PETRI_TRANSITIONS=940} [2023-08-25 03:28:13,424 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 257 predicate places. [2023-08-25 03:28:13,424 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 940 transitions, 29146 flow [2023-08-25 03:28:13,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:13,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:28:13,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:28:13,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 03:28:13,425 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:28:13,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:28:13,425 INFO L85 PathProgramCache]: Analyzing trace with hash -79603558, now seen corresponding path program 11 times [2023-08-25 03:28:13,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:28:13,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941807855] [2023-08-25 03:28:13,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:28:13,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:28:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:28:13,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:28:13,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:28:13,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941807855] [2023-08-25 03:28:13,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941807855] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:28:13,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:28:13,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:28:13,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808265663] [2023-08-25 03:28:13,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:28:13,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:28:13,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:28:13,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:28:13,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:28:13,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:28:13,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 940 transitions, 29146 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:13,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:28:13,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:28:13,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:28:21,791 INFO L124 PetriNetUnfolderBase]: 6702/14894 cut-off events. [2023-08-25 03:28:21,792 INFO L125 PetriNetUnfolderBase]: For 439598/440082 co-relation queries the response was YES. [2023-08-25 03:28:22,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104341 conditions, 14894 events. 6702/14894 cut-off events. For 439598/440082 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 132031 event pairs, 1399 based on Foata normal form. 392/14089 useless extension candidates. Maximal degree in co-relation 104218. Up to 5282 conditions per place. [2023-08-25 03:28:22,178 INFO L140 encePairwiseOnDemand]: 317/349 looper letters, 663 selfloop transitions, 629 changer transitions 4/1301 dead transitions. [2023-08-25 03:28:22,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 1301 transitions, 35718 flow [2023-08-25 03:28:22,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 03:28:22,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 03:28:22,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1789 transitions. [2023-08-25 03:28:22,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36614817846909536 [2023-08-25 03:28:22,180 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1789 transitions. [2023-08-25 03:28:22,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1789 transitions. [2023-08-25 03:28:22,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:28:22,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1789 transitions. [2023-08-25 03:28:22,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 127.78571428571429) internal successors, (1789), 14 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:22,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:22,186 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:22,186 INFO L175 Difference]: Start difference. First operand has 334 places, 940 transitions, 29146 flow. Second operand 14 states and 1789 transitions. [2023-08-25 03:28:22,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 1301 transitions, 35718 flow [2023-08-25 03:28:25,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 1301 transitions, 35577 flow, removed 61 selfloop flow, removed 1 redundant places. [2023-08-25 03:28:25,678 INFO L231 Difference]: Finished difference. Result has 356 places, 994 transitions, 33448 flow [2023-08-25 03:28:25,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=29007, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=576, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33448, PETRI_PLACES=356, PETRI_TRANSITIONS=994} [2023-08-25 03:28:25,679 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 279 predicate places. [2023-08-25 03:28:25,679 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 994 transitions, 33448 flow [2023-08-25 03:28:25,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:25,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:28:25,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:28:25,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 03:28:25,680 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:28:25,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:28:25,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1272134940, now seen corresponding path program 12 times [2023-08-25 03:28:25,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:28:25,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834640895] [2023-08-25 03:28:25,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:28:25,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:28:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:28:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:28:25,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:28:25,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834640895] [2023-08-25 03:28:25,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834640895] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:28:25,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:28:25,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:28:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116222695] [2023-08-25 03:28:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:28:25,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:28:25,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:28:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:28:25,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:28:25,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:28:25,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 994 transitions, 33448 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:25,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:28:25,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:28:25,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:28:34,553 INFO L124 PetriNetUnfolderBase]: 7079/15623 cut-off events. [2023-08-25 03:28:34,554 INFO L125 PetriNetUnfolderBase]: For 541640/542227 co-relation queries the response was YES. [2023-08-25 03:28:34,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115460 conditions, 15623 events. 7079/15623 cut-off events. For 541640/542227 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 139626 event pairs, 1023 based on Foata normal form. 456/14793 useless extension candidates. Maximal degree in co-relation 115327. Up to 6064 conditions per place. [2023-08-25 03:28:34,876 INFO L140 encePairwiseOnDemand]: 318/349 looper letters, 615 selfloop transitions, 711 changer transitions 4/1335 dead transitions. [2023-08-25 03:28:34,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 1335 transitions, 40360 flow [2023-08-25 03:28:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 03:28:34,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 03:28:34,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1749 transitions. [2023-08-25 03:28:34,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3579615227179697 [2023-08-25 03:28:34,879 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1749 transitions. [2023-08-25 03:28:34,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1749 transitions. [2023-08-25 03:28:34,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:28:34,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1749 transitions. [2023-08-25 03:28:34,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.92857142857143) internal successors, (1749), 14 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:34,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:34,905 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:34,905 INFO L175 Difference]: Start difference. First operand has 356 places, 994 transitions, 33448 flow. Second operand 14 states and 1749 transitions. [2023-08-25 03:28:34,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 1335 transitions, 40360 flow [2023-08-25 03:28:39,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1335 transitions, 40204 flow, removed 56 selfloop flow, removed 1 redundant places. [2023-08-25 03:28:39,338 INFO L231 Difference]: Finished difference. Result has 380 places, 1053 transitions, 38441 flow [2023-08-25 03:28:39,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=33312, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=994, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=654, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38441, PETRI_PLACES=380, PETRI_TRANSITIONS=1053} [2023-08-25 03:28:39,339 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 303 predicate places. [2023-08-25 03:28:39,339 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1053 transitions, 38441 flow [2023-08-25 03:28:39,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:39,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:28:39,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:28:39,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 03:28:39,340 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:28:39,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:28:39,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1289974320, now seen corresponding path program 13 times [2023-08-25 03:28:39,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:28:39,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478380668] [2023-08-25 03:28:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:28:39,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:28:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:28:39,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:28:39,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:28:39,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478380668] [2023-08-25 03:28:39,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478380668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:28:39,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:28:39,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:28:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925503070] [2023-08-25 03:28:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:28:39,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:28:39,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:28:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:28:39,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:28:39,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 349 [2023-08-25 03:28:39,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1053 transitions, 38441 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:39,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:28:39,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 349 [2023-08-25 03:28:39,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:28:48,720 INFO L124 PetriNetUnfolderBase]: 7456/16494 cut-off events. [2023-08-25 03:28:48,720 INFO L125 PetriNetUnfolderBase]: For 676248/676831 co-relation queries the response was YES. [2023-08-25 03:28:49,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127442 conditions, 16494 events. 7456/16494 cut-off events. For 676248/676831 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 148759 event pairs, 1216 based on Foata normal form. 416/15549 useless extension candidates. Maximal degree in co-relation 127298. Up to 5760 conditions per place. [2023-08-25 03:28:49,194 INFO L140 encePairwiseOnDemand]: 319/349 looper letters, 645 selfloop transitions, 697 changer transitions 4/1351 dead transitions. [2023-08-25 03:28:49,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1351 transitions, 45191 flow [2023-08-25 03:28:49,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 03:28:49,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 03:28:49,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1705 transitions. [2023-08-25 03:28:49,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3489562013917315 [2023-08-25 03:28:49,210 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1705 transitions. [2023-08-25 03:28:49,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1705 transitions. [2023-08-25 03:28:49,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:28:49,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1705 transitions. [2023-08-25 03:28:49,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 121.78571428571429) internal successors, (1705), 14 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:49,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:49,227 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:49,227 INFO L175 Difference]: Start difference. First operand has 380 places, 1053 transitions, 38441 flow. Second operand 14 states and 1705 transitions. [2023-08-25 03:28:49,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1351 transitions, 45191 flow [2023-08-25 03:28:57,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 1351 transitions, 45075 flow, removed 58 selfloop flow, removed 0 redundant places. [2023-08-25 03:28:57,042 INFO L231 Difference]: Finished difference. Result has 403 places, 1101 transitions, 43258 flow [2023-08-25 03:28:57,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=38335, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43258, PETRI_PLACES=403, PETRI_TRANSITIONS=1101} [2023-08-25 03:28:57,043 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 326 predicate places. [2023-08-25 03:28:57,043 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 1101 transitions, 43258 flow [2023-08-25 03:28:57,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:57,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:28:57,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:28:57,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 03:28:57,043 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:28:57,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:28:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1141787270, now seen corresponding path program 1 times [2023-08-25 03:28:57,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:28:57,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047835092] [2023-08-25 03:28:57,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:28:57,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:28:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:28:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:28:57,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:28:57,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047835092] [2023-08-25 03:28:57,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047835092] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:28:57,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:28:57,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:28:57,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355668170] [2023-08-25 03:28:57,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:28:57,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:28:57,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:28:57,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:28:57,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:28:57,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 349 [2023-08-25 03:28:57,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1101 transitions, 43258 flow. Second operand has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:28:57,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:28:57,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 349 [2023-08-25 03:28:57,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:29:06,183 INFO L124 PetriNetUnfolderBase]: 8047/17812 cut-off events. [2023-08-25 03:29:06,183 INFO L125 PetriNetUnfolderBase]: For 833770/833858 co-relation queries the response was YES. [2023-08-25 03:29:06,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140331 conditions, 17812 events. 8047/17812 cut-off events. For 833770/833858 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 162343 event pairs, 3453 based on Foata normal form. 27/16403 useless extension candidates. Maximal degree in co-relation 140177. Up to 15491 conditions per place. [2023-08-25 03:29:06,459 INFO L140 encePairwiseOnDemand]: 335/349 looper letters, 1207 selfloop transitions, 170 changer transitions 0/1384 dead transitions. [2023-08-25 03:29:06,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1384 transitions, 55534 flow [2023-08-25 03:29:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:29:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:29:06,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 813 transitions. [2023-08-25 03:29:06,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38825214899713467 [2023-08-25 03:29:06,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 813 transitions. [2023-08-25 03:29:06,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 813 transitions. [2023-08-25 03:29:06,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:29:06,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 813 transitions. [2023-08-25 03:29:06,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:06,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:06,463 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:06,463 INFO L175 Difference]: Start difference. First operand has 403 places, 1101 transitions, 43258 flow. Second operand 6 states and 813 transitions. [2023-08-25 03:29:06,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1384 transitions, 55534 flow [2023-08-25 03:29:14,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 1384 transitions, 55259 flow, removed 87 selfloop flow, removed 3 redundant places. [2023-08-25 03:29:14,773 INFO L231 Difference]: Finished difference. Result has 409 places, 1240 transitions, 46913 flow [2023-08-25 03:29:14,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=43057, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1003, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=46913, PETRI_PLACES=409, PETRI_TRANSITIONS=1240} [2023-08-25 03:29:14,774 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 332 predicate places. [2023-08-25 03:29:14,774 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 1240 transitions, 46913 flow [2023-08-25 03:29:14,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:14,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:29:14,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:29:14,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 03:29:14,774 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:29:14,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:29:14,775 INFO L85 PathProgramCache]: Analyzing trace with hash 94692759, now seen corresponding path program 1 times [2023-08-25 03:29:14,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:29:14,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909497667] [2023-08-25 03:29:14,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:29:14,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:29:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:29:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:29:14,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:29:14,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909497667] [2023-08-25 03:29:14,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909497667] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:29:14,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:29:14,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:29:14,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913840141] [2023-08-25 03:29:14,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:29:14,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:29:14,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:29:14,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:29:14,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:29:14,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 349 [2023-08-25 03:29:14,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 1240 transitions, 46913 flow. Second operand has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:14,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:29:14,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 349 [2023-08-25 03:29:14,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:29:26,818 INFO L124 PetriNetUnfolderBase]: 10155/22559 cut-off events. [2023-08-25 03:29:26,818 INFO L125 PetriNetUnfolderBase]: For 1027995/1028096 co-relation queries the response was YES. [2023-08-25 03:29:27,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183306 conditions, 22559 events. 10155/22559 cut-off events. For 1027995/1028096 co-relation queries the response was YES. Maximal size of possible extension queue 749. Compared 218985 event pairs, 1183 based on Foata normal form. 30/21241 useless extension candidates. Maximal degree in co-relation 183148. Up to 13623 conditions per place. [2023-08-25 03:29:27,205 INFO L140 encePairwiseOnDemand]: 327/349 looper letters, 1569 selfloop transitions, 746 changer transitions 8/2330 dead transitions. [2023-08-25 03:29:27,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 2330 transitions, 94813 flow [2023-08-25 03:29:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:29:27,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:29:27,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2023-08-25 03:29:27,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42550143266475643 [2023-08-25 03:29:27,208 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 891 transitions. [2023-08-25 03:29:27,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 891 transitions. [2023-08-25 03:29:27,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:29:27,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 891 transitions. [2023-08-25 03:29:27,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:27,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:27,210 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:27,210 INFO L175 Difference]: Start difference. First operand has 409 places, 1240 transitions, 46913 flow. Second operand 6 states and 891 transitions. [2023-08-25 03:29:27,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 2330 transitions, 94813 flow [2023-08-25 03:29:40,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 2330 transitions, 94445 flow, removed 184 selfloop flow, removed 0 redundant places. [2023-08-25 03:29:40,797 INFO L231 Difference]: Finished difference. Result has 419 places, 1808 transitions, 75299 flow [2023-08-25 03:29:40,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=46545, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75299, PETRI_PLACES=419, PETRI_TRANSITIONS=1808} [2023-08-25 03:29:40,799 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 342 predicate places. [2023-08-25 03:29:40,799 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 1808 transitions, 75299 flow [2023-08-25 03:29:40,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:40,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:29:40,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:29:40,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 03:29:40,799 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:29:40,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:29:40,800 INFO L85 PathProgramCache]: Analyzing trace with hash 29421568, now seen corresponding path program 1 times [2023-08-25 03:29:40,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:29:40,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993085042] [2023-08-25 03:29:40,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:29:40,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:29:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:29:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:29:41,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:29:41,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993085042] [2023-08-25 03:29:41,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993085042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:29:41,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:29:41,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:29:41,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664447979] [2023-08-25 03:29:41,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:29:41,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 03:29:41,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:29:41,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 03:29:41,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 03:29:41,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 349 [2023-08-25 03:29:41,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1808 transitions, 75299 flow. Second operand has 10 states, 10 states have (on average 98.9) internal successors, (989), 10 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:41,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:29:41,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 349 [2023-08-25 03:29:41,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:29:57,452 INFO L124 PetriNetUnfolderBase]: 10171/22845 cut-off events. [2023-08-25 03:29:57,452 INFO L125 PetriNetUnfolderBase]: For 1065834/1066034 co-relation queries the response was YES. [2023-08-25 03:29:57,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198801 conditions, 22845 events. 10171/22845 cut-off events. For 1065834/1066034 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 220278 event pairs, 2780 based on Foata normal form. 183/22194 useless extension candidates. Maximal degree in co-relation 198638. Up to 17068 conditions per place. [2023-08-25 03:29:57,979 INFO L140 encePairwiseOnDemand]: 335/349 looper letters, 1619 selfloop transitions, 490 changer transitions 4/2118 dead transitions. [2023-08-25 03:29:57,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 2118 transitions, 87776 flow [2023-08-25 03:29:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 03:29:57,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 03:29:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1689 transitions. [2023-08-25 03:29:57,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3226361031518625 [2023-08-25 03:29:57,994 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1689 transitions. [2023-08-25 03:29:57,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1689 transitions. [2023-08-25 03:29:57,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:29:57,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1689 transitions. [2023-08-25 03:29:57,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 112.6) internal successors, (1689), 15 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:57,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:57,998 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:29:57,998 INFO L175 Difference]: Start difference. First operand has 419 places, 1808 transitions, 75299 flow. Second operand 15 states and 1689 transitions. [2023-08-25 03:29:57,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 2118 transitions, 87776 flow [2023-08-25 03:30:12,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 2118 transitions, 86960 flow, removed 408 selfloop flow, removed 0 redundant places. [2023-08-25 03:30:12,475 INFO L231 Difference]: Finished difference. Result has 437 places, 1898 transitions, 79472 flow [2023-08-25 03:30:12,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=74507, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=406, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=79472, PETRI_PLACES=437, PETRI_TRANSITIONS=1898} [2023-08-25 03:30:12,476 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 360 predicate places. [2023-08-25 03:30:12,476 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 1898 transitions, 79472 flow [2023-08-25 03:30:12,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.9) internal successors, (989), 10 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:30:12,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:30:12,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:30:12,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 03:30:12,477 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:30:12,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:30:12,477 INFO L85 PathProgramCache]: Analyzing trace with hash -5922688, now seen corresponding path program 1 times [2023-08-25 03:30:12,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:30:12,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324163195] [2023-08-25 03:30:12,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:30:12,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:30:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:30:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:30:13,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:30:13,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324163195] [2023-08-25 03:30:13,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324163195] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:30:13,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:30:13,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 03:30:13,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178426398] [2023-08-25 03:30:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:30:13,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:30:13,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:30:13,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:30:13,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:30:13,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 349 [2023-08-25 03:30:13,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 1898 transitions, 79472 flow. Second operand has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:30:13,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:30:13,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 349 [2023-08-25 03:30:13,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:30:39,524 INFO L124 PetriNetUnfolderBase]: 16586/36379 cut-off events. [2023-08-25 03:30:39,524 INFO L125 PetriNetUnfolderBase]: For 1728336/1728386 co-relation queries the response was YES. [2023-08-25 03:30:40,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320460 conditions, 36379 events. 16586/36379 cut-off events. For 1728336/1728386 co-relation queries the response was YES. Maximal size of possible extension queue 1061. Compared 372461 event pairs, 3343 based on Foata normal form. 21/35196 useless extension candidates. Maximal degree in co-relation 320292. Up to 16484 conditions per place. [2023-08-25 03:30:40,439 INFO L140 encePairwiseOnDemand]: 333/349 looper letters, 2966 selfloop transitions, 474 changer transitions 0/3445 dead transitions. [2023-08-25 03:30:40,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 3445 transitions, 148191 flow [2023-08-25 03:30:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 03:30:40,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 03:30:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1603 transitions. [2023-08-25 03:30:40,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2870702005730659 [2023-08-25 03:30:40,441 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1603 transitions. [2023-08-25 03:30:40,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1603 transitions. [2023-08-25 03:30:40,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:30:40,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1603 transitions. [2023-08-25 03:30:40,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 100.1875) internal successors, (1603), 16 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:30:40,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:30:40,446 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:30:40,446 INFO L175 Difference]: Start difference. First operand has 437 places, 1898 transitions, 79472 flow. Second operand 16 states and 1603 transitions. [2023-08-25 03:30:40,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 3445 transitions, 148191 flow [2023-08-25 03:31:08,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 3445 transitions, 148082 flow, removed 22 selfloop flow, removed 3 redundant places. [2023-08-25 03:31:08,341 INFO L231 Difference]: Finished difference. Result has 459 places, 2282 transitions, 100089 flow [2023-08-25 03:31:08,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=79395, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1898, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=100089, PETRI_PLACES=459, PETRI_TRANSITIONS=2282} [2023-08-25 03:31:08,342 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 382 predicate places. [2023-08-25 03:31:08,343 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 2282 transitions, 100089 flow [2023-08-25 03:31:08,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:31:08,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:31:08,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:31:08,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 03:31:08,343 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:31:08,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:31:08,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2054901502, now seen corresponding path program 2 times [2023-08-25 03:31:08,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:31:08,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552235844] [2023-08-25 03:31:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:31:08,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:31:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:31:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:31:08,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:31:08,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552235844] [2023-08-25 03:31:08,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552235844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:31:08,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:31:08,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 03:31:08,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058578382] [2023-08-25 03:31:08,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:31:08,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:31:08,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:31:08,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:31:08,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:31:08,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 349 [2023-08-25 03:31:08,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 2282 transitions, 100089 flow. Second operand has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:31:08,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:31:08,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 349 [2023-08-25 03:31:08,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:31:43,685 INFO L124 PetriNetUnfolderBase]: 16639/36709 cut-off events. [2023-08-25 03:31:43,685 INFO L125 PetriNetUnfolderBase]: For 1780265/1780782 co-relation queries the response was YES. [2023-08-25 03:31:44,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333467 conditions, 36709 events. 16639/36709 cut-off events. For 1780265/1780782 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 375466 event pairs, 4298 based on Foata normal form. 302/35823 useless extension candidates. Maximal degree in co-relation 333288. Up to 24741 conditions per place. [2023-08-25 03:31:44,810 INFO L140 encePairwiseOnDemand]: 331/349 looper letters, 1709 selfloop transitions, 798 changer transitions 0/2512 dead transitions. [2023-08-25 03:31:44,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 2512 transitions, 111114 flow [2023-08-25 03:31:44,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 03:31:44,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 03:31:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1774 transitions. [2023-08-25 03:31:44,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28239414199299584 [2023-08-25 03:31:44,813 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1774 transitions. [2023-08-25 03:31:44,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1774 transitions. [2023-08-25 03:31:44,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:31:44,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1774 transitions. [2023-08-25 03:31:44,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 98.55555555555556) internal successors, (1774), 18 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:31:44,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:31:44,819 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:31:44,819 INFO L175 Difference]: Start difference. First operand has 459 places, 2282 transitions, 100089 flow. Second operand 18 states and 1774 transitions. [2023-08-25 03:31:44,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 2512 transitions, 111114 flow [2023-08-25 03:32:17,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 2512 transitions, 111094 flow, removed 10 selfloop flow, removed 0 redundant places. [2023-08-25 03:32:17,800 INFO L231 Difference]: Finished difference. Result has 484 places, 2333 transitions, 104409 flow [2023-08-25 03:32:17,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=100069, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=750, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=104409, PETRI_PLACES=484, PETRI_TRANSITIONS=2333} [2023-08-25 03:32:17,802 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 407 predicate places. [2023-08-25 03:32:17,802 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 2333 transitions, 104409 flow [2023-08-25 03:32:17,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:32:17,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:32:17,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:32:17,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 03:32:17,803 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:32:17,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:32:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash -718664832, now seen corresponding path program 3 times [2023-08-25 03:32:17,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:32:17,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478810021] [2023-08-25 03:32:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:32:17,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:32:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:32:18,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:32:18,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:32:18,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478810021] [2023-08-25 03:32:18,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478810021] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:32:18,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:32:18,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 03:32:18,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787324532] [2023-08-25 03:32:18,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:32:18,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:32:18,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:32:18,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:32:18,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:32:18,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 349 [2023-08-25 03:32:18,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 2333 transitions, 104409 flow. Second operand has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:32:18,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:32:18,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 349 [2023-08-25 03:32:18,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:32:54,580 INFO L124 PetriNetUnfolderBase]: 16949/37459 cut-off events. [2023-08-25 03:32:54,586 INFO L125 PetriNetUnfolderBase]: For 1905522/1905844 co-relation queries the response was YES. [2023-08-25 03:32:55,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352150 conditions, 37459 events. 16949/37459 cut-off events. For 1905522/1905844 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 383724 event pairs, 4539 based on Foata normal form. 283/36520 useless extension candidates. Maximal degree in co-relation 351962. Up to 27024 conditions per place. [2023-08-25 03:32:56,008 INFO L140 encePairwiseOnDemand]: 334/349 looper letters, 2118 selfloop transitions, 563 changer transitions 0/2686 dead transitions. [2023-08-25 03:32:56,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 2686 transitions, 120130 flow [2023-08-25 03:32:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-25 03:32:56,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-25 03:32:56,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1696 transitions. [2023-08-25 03:32:56,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2858587561098938 [2023-08-25 03:32:56,010 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1696 transitions. [2023-08-25 03:32:56,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1696 transitions. [2023-08-25 03:32:56,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:32:56,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1696 transitions. [2023-08-25 03:32:56,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 99.76470588235294) internal successors, (1696), 17 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:32:56,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:32:56,016 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:32:56,016 INFO L175 Difference]: Start difference. First operand has 484 places, 2333 transitions, 104409 flow. Second operand 17 states and 1696 transitions. [2023-08-25 03:32:56,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 2686 transitions, 120130 flow [2023-08-25 03:33:31,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 2686 transitions, 119461 flow, removed 44 selfloop flow, removed 6 redundant places. [2023-08-25 03:33:31,305 INFO L231 Difference]: Finished difference. Result has 503 places, 2389 transitions, 107581 flow [2023-08-25 03:33:31,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=103741, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=512, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=107581, PETRI_PLACES=503, PETRI_TRANSITIONS=2389} [2023-08-25 03:33:31,307 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 426 predicate places. [2023-08-25 03:33:31,308 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 2389 transitions, 107581 flow [2023-08-25 03:33:31,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:33:31,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:33:31,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:33:31,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 03:33:31,308 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:33:31,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:33:31,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1405728470, now seen corresponding path program 4 times [2023-08-25 03:33:31,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:33:31,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208900474] [2023-08-25 03:33:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:33:31,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:33:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:33:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:33:31,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:33:31,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208900474] [2023-08-25 03:33:31,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208900474] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:33:31,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:33:31,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 03:33:31,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983883024] [2023-08-25 03:33:31,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:33:31,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:33:31,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:33:31,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:33:31,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:33:31,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 349 [2023-08-25 03:33:31,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 2389 transitions, 107581 flow. Second operand has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:33:31,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:33:31,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 349 [2023-08-25 03:33:31,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:34:10,470 INFO L124 PetriNetUnfolderBase]: 16962/37394 cut-off events. [2023-08-25 03:34:10,471 INFO L125 PetriNetUnfolderBase]: For 1969538/1970149 co-relation queries the response was YES. [2023-08-25 03:34:11,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358316 conditions, 37394 events. 16962/37394 cut-off events. For 1969538/1970149 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 382451 event pairs, 4415 based on Foata normal form. 364/36551 useless extension candidates. Maximal degree in co-relation 358118. Up to 24790 conditions per place. [2023-08-25 03:34:11,900 INFO L140 encePairwiseOnDemand]: 331/349 looper letters, 1639 selfloop transitions, 966 changer transitions 0/2610 dead transitions. [2023-08-25 03:34:11,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 2610 transitions, 117804 flow [2023-08-25 03:34:11,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-25 03:34:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-25 03:34:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1875 transitions. [2023-08-25 03:34:11,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2827627808776957 [2023-08-25 03:34:11,903 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1875 transitions. [2023-08-25 03:34:11,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1875 transitions. [2023-08-25 03:34:11,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:34:11,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1875 transitions. [2023-08-25 03:34:11,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 98.6842105263158) internal successors, (1875), 19 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:11,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 349.0) internal successors, (6980), 20 states have internal predecessors, (6980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:11,921 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 349.0) internal successors, (6980), 20 states have internal predecessors, (6980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:11,921 INFO L175 Difference]: Start difference. First operand has 503 places, 2389 transitions, 107581 flow. Second operand 19 states and 1875 transitions. [2023-08-25 03:34:11,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 2610 transitions, 117804 flow [2023-08-25 03:34:46,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 2610 transitions, 117523 flow, removed 108 selfloop flow, removed 3 redundant places. [2023-08-25 03:34:46,401 INFO L231 Difference]: Finished difference. Result has 523 places, 2400 transitions, 109645 flow [2023-08-25 03:34:46,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=107308, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=955, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=109645, PETRI_PLACES=523, PETRI_TRANSITIONS=2400} [2023-08-25 03:34:46,403 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 446 predicate places. [2023-08-25 03:34:46,403 INFO L495 AbstractCegarLoop]: Abstraction has has 523 places, 2400 transitions, 109645 flow [2023-08-25 03:34:46,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:46,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:34:46,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:34:46,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 03:34:46,404 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:34:46,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:34:46,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1571631184, now seen corresponding path program 5 times [2023-08-25 03:34:46,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:34:46,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195432616] [2023-08-25 03:34:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:34:46,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:34:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:34:46,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:46,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:34:46,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195432616] [2023-08-25 03:34:46,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195432616] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:34:46,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:34:46,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 03:34:46,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145860243] [2023-08-25 03:34:46,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:34:46,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:34:46,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:34:46,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:34:46,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:34:46,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 349 [2023-08-25 03:34:46,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 2400 transitions, 109645 flow. Second operand has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:46,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:34:46,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 349 [2023-08-25 03:34:46,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:35:26,860 INFO L124 PetriNetUnfolderBase]: 16970/37409 cut-off events. [2023-08-25 03:35:26,860 INFO L125 PetriNetUnfolderBase]: For 2045377/2045942 co-relation queries the response was YES. [2023-08-25 03:35:27,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365891 conditions, 37409 events. 16970/37409 cut-off events. For 2045377/2045942 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 382475 event pairs, 4499 based on Foata normal form. 350/36550 useless extension candidates. Maximal degree in co-relation 365687. Up to 24805 conditions per place. [2023-08-25 03:35:27,991 INFO L140 encePairwiseOnDemand]: 331/349 looper letters, 1799 selfloop transitions, 784 changer transitions 0/2588 dead transitions. [2023-08-25 03:35:27,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 2588 transitions, 119883 flow [2023-08-25 03:35:27,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-25 03:35:27,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-25 03:35:27,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1679 transitions. [2023-08-25 03:35:27,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28299342659699983 [2023-08-25 03:35:27,994 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1679 transitions. [2023-08-25 03:35:27,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1679 transitions. [2023-08-25 03:35:27,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:35:27,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1679 transitions. [2023-08-25 03:35:27,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 98.76470588235294) internal successors, (1679), 17 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:27,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:28,000 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:28,000 INFO L175 Difference]: Start difference. First operand has 523 places, 2400 transitions, 109645 flow. Second operand 17 states and 1679 transitions. [2023-08-25 03:35:28,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 2588 transitions, 119883 flow [2023-08-25 03:36:03,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 2588 transitions, 118993 flow, removed 25 selfloop flow, removed 11 redundant places. [2023-08-25 03:36:03,750 INFO L231 Difference]: Finished difference. Result has 535 places, 2436 transitions, 112278 flow [2023-08-25 03:36:03,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=108794, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=750, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=112278, PETRI_PLACES=535, PETRI_TRANSITIONS=2436} [2023-08-25 03:36:03,752 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 458 predicate places. [2023-08-25 03:36:03,752 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 2436 transitions, 112278 flow [2023-08-25 03:36:03,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:03,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:36:03,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:36:03,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 03:36:03,752 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:36:03,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:36:03,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1783698526, now seen corresponding path program 6 times [2023-08-25 03:36:03,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:36:03,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573735722] [2023-08-25 03:36:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:36:03,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:36:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:36:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:36:04,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:36:04,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573735722] [2023-08-25 03:36:04,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573735722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:36:04,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:36:04,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 03:36:04,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440780528] [2023-08-25 03:36:04,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:36:04,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:36:04,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:36:04,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:36:04,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:36:04,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 349 [2023-08-25 03:36:04,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 2436 transitions, 112278 flow. Second operand has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:04,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:36:04,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 349 [2023-08-25 03:36:04,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:36:44,613 INFO L124 PetriNetUnfolderBase]: 16998/37465 cut-off events. [2023-08-25 03:36:44,613 INFO L125 PetriNetUnfolderBase]: For 2124727/2125268 co-relation queries the response was YES. [2023-08-25 03:36:45,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372579 conditions, 37465 events. 16998/37465 cut-off events. For 2124727/2125268 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 383174 event pairs, 4428 based on Foata normal form. 343/36599 useless extension candidates. Maximal degree in co-relation 372368. Up to 24826 conditions per place. [2023-08-25 03:36:45,925 INFO L140 encePairwiseOnDemand]: 331/349 looper letters, 1660 selfloop transitions, 1017 changer transitions 0/2682 dead transitions. [2023-08-25 03:36:45,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 2682 transitions, 123900 flow [2023-08-25 03:36:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-25 03:36:45,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-25 03:36:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2237 transitions. [2023-08-25 03:36:45,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2786844400149495 [2023-08-25 03:36:45,929 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2237 transitions. [2023-08-25 03:36:45,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2237 transitions. [2023-08-25 03:36:45,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:36:45,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2237 transitions. [2023-08-25 03:36:45,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 97.26086956521739) internal successors, (2237), 23 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:45,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 349.0) internal successors, (8376), 24 states have internal predecessors, (8376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:45,935 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 349.0) internal successors, (8376), 24 states have internal predecessors, (8376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:45,935 INFO L175 Difference]: Start difference. First operand has 535 places, 2436 transitions, 112278 flow. Second operand 23 states and 2237 transitions. [2023-08-25 03:36:45,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 2682 transitions, 123900 flow [2023-08-25 03:37:23,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 2682 transitions, 123480 flow, removed 115 selfloop flow, removed 5 redundant places. [2023-08-25 03:37:23,899 INFO L231 Difference]: Finished difference. Result has 560 places, 2463 transitions, 115595 flow [2023-08-25 03:37:23,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=111858, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=991, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=115595, PETRI_PLACES=560, PETRI_TRANSITIONS=2463} [2023-08-25 03:37:23,902 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 483 predicate places. [2023-08-25 03:37:23,902 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 2463 transitions, 115595 flow [2023-08-25 03:37:23,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:23,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:37:23,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:37:23,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 03:37:23,903 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:37:23,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:37:23,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1626417198, now seen corresponding path program 7 times [2023-08-25 03:37:23,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:37:23,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669162286] [2023-08-25 03:37:23,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:37:23,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:37:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:37:24,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:37:24,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:37:24,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669162286] [2023-08-25 03:37:24,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669162286] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:37:24,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:37:24,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 03:37:24,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085805859] [2023-08-25 03:37:24,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:37:24,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:37:24,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:37:24,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:37:24,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:37:24,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 349 [2023-08-25 03:37:24,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 2463 transitions, 115595 flow. Second operand has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:24,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:37:24,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 349 [2023-08-25 03:37:24,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:38:08,288 INFO L124 PetriNetUnfolderBase]: 17021/37520 cut-off events. [2023-08-25 03:38:08,288 INFO L125 PetriNetUnfolderBase]: For 2231720/2232422 co-relation queries the response was YES. [2023-08-25 03:38:09,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381195 conditions, 37520 events. 17021/37520 cut-off events. For 2231720/2232422 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 383892 event pairs, 4422 based on Foata normal form. 392/36705 useless extension candidates. Maximal degree in co-relation 380976. Up to 24872 conditions per place. [2023-08-25 03:38:10,151 INFO L140 encePairwiseOnDemand]: 331/349 looper letters, 1780 selfloop transitions, 873 changer transitions 0/2658 dead transitions. [2023-08-25 03:38:10,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 2658 transitions, 125567 flow [2023-08-25 03:38:10,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 03:38:10,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 03:38:10,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2044 transitions. [2023-08-25 03:38:10,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27889207258834764 [2023-08-25 03:38:10,154 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2044 transitions. [2023-08-25 03:38:10,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2044 transitions. [2023-08-25 03:38:10,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:38:10,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2044 transitions. [2023-08-25 03:38:10,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 97.33333333333333) internal successors, (2044), 21 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:10,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 349.0) internal successors, (7678), 22 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:10,159 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 349.0) internal successors, (7678), 22 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:10,159 INFO L175 Difference]: Start difference. First operand has 560 places, 2463 transitions, 115595 flow. Second operand 21 states and 2044 transitions. [2023-08-25 03:38:10,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 2658 transitions, 125567 flow [2023-08-25 03:38:50,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 2658 transitions, 124388 flow, removed 78 selfloop flow, removed 11 redundant places. [2023-08-25 03:38:50,336 INFO L231 Difference]: Finished difference. Result has 576 places, 2483 transitions, 117302 flow [2023-08-25 03:38:50,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=114418, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=853, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=117302, PETRI_PLACES=576, PETRI_TRANSITIONS=2483} [2023-08-25 03:38:50,337 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 499 predicate places. [2023-08-25 03:38:50,337 INFO L495 AbstractCegarLoop]: Abstraction has has 576 places, 2483 transitions, 117302 flow [2023-08-25 03:38:50,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:50,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:38:50,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:38:50,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 03:38:50,338 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:38:50,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:38:50,338 INFO L85 PathProgramCache]: Analyzing trace with hash -791660194, now seen corresponding path program 8 times [2023-08-25 03:38:50,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:38:50,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125156773] [2023-08-25 03:38:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:38:50,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:38:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:38:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:38:50,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:38:50,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125156773] [2023-08-25 03:38:50,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125156773] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:38:50,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:38:50,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 03:38:50,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156221297] [2023-08-25 03:38:50,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:38:50,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:38:50,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:38:50,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:38:50,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:38:50,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 349 [2023-08-25 03:38:50,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 2483 transitions, 117302 flow. Second operand has 12 states, 12 states have (on average 87.58333333333333) internal successors, (1051), 12 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:50,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:38:50,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 349 [2023-08-25 03:38:50,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:39:35,416 INFO L124 PetriNetUnfolderBase]: 17056/37591 cut-off events. [2023-08-25 03:39:35,416 INFO L125 PetriNetUnfolderBase]: For 2319705/2320286 co-relation queries the response was YES. [2023-08-25 03:39:36,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386020 conditions, 37591 events. 17056/37591 cut-off events. For 2319705/2320286 co-relation queries the response was YES. Maximal size of possible extension queue 1066. Compared 384792 event pairs, 4425 based on Foata normal form. 355/36737 useless extension candidates. Maximal degree in co-relation 385794. Up to 24849 conditions per place. [2023-08-25 03:39:37,123 INFO L140 encePairwiseOnDemand]: 331/349 looper letters, 1797 selfloop transitions, 882 changer transitions 0/2684 dead transitions. [2023-08-25 03:39:37,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 596 places, 2684 transitions, 127041 flow [2023-08-25 03:39:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 03:39:37,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 03:39:37,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2046 transitions. [2023-08-25 03:39:37,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2791649611133852 [2023-08-25 03:39:37,129 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2046 transitions. [2023-08-25 03:39:37,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2046 transitions. [2023-08-25 03:39:37,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:39:37,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2046 transitions. [2023-08-25 03:39:37,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 97.42857142857143) internal successors, (2046), 21 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:39:37,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 349.0) internal successors, (7678), 22 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:39:37,137 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 349.0) internal successors, (7678), 22 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:39:37,137 INFO L175 Difference]: Start difference. First operand has 576 places, 2483 transitions, 117302 flow. Second operand 21 states and 2046 transitions. [2023-08-25 03:39:37,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 596 places, 2684 transitions, 127041 flow Received shutdown request... [2023-08-25 03:39:47,264 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2023-08-25 03:39:47,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 03:39:47,265 WARN L619 AbstractCegarLoop]: Verification canceled: while executing RemoveRedundantFlow. [2023-08-25 03:39:47,266 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2023-08-25 03:39:47,266 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2023-08-25 03:39:47,269 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2023-08-25 03:39:47,270 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2023-08-25 03:39:47,271 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2023-08-25 03:39:47,272 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2023-08-25 03:39:47,272 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2023-08-25 03:39:47,272 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2023-08-25 03:39:47,272 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2023-08-25 03:39:47,272 INFO L445 BasicCegarLoop]: Path program histogram: [13, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:39:47,275 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 03:39:47,275 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:39:47,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:39:47,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:39:47 BasicIcfg [2023-08-25 03:39:47,277 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:39:47,277 INFO L158 Benchmark]: Toolchain (without parser) took 825455.97ms. Allocated memory was 329.3MB in the beginning and 8.9GB in the end (delta: 8.5GB). Free memory was 303.0MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. [2023-08-25 03:39:47,277 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 329.3MB. Free memory is still 305.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:39:47,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.32ms. Allocated memory is still 329.3MB. Free memory was 303.0MB in the beginning and 264.1MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-08-25 03:39:47,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.45ms. Allocated memory is still 329.3MB. Free memory was 264.1MB in the beginning and 260.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 03:39:47,278 INFO L158 Benchmark]: Boogie Preprocessor took 29.60ms. Allocated memory is still 329.3MB. Free memory was 260.4MB in the beginning and 257.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:39:47,278 INFO L158 Benchmark]: RCFGBuilder took 486.43ms. Allocated memory is still 329.3MB. Free memory was 257.8MB in the beginning and 288.1MB in the end (delta: -30.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.0GB. [2023-08-25 03:39:47,278 INFO L158 Benchmark]: TraceAbstraction took 824300.03ms. Allocated memory was 329.3MB in the beginning and 8.9GB in the end (delta: 8.5GB). Free memory was 287.1MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. [2023-08-25 03:39:47,282 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 329.3MB. Free memory is still 305.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 566.32ms. Allocated memory is still 329.3MB. Free memory was 303.0MB in the beginning and 264.1MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 68.45ms. Allocated memory is still 329.3MB. Free memory was 264.1MB in the beginning and 260.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.60ms. Allocated memory is still 329.3MB. Free memory was 260.4MB in the beginning and 257.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 486.43ms. Allocated memory is still 329.3MB. Free memory was 257.8MB in the beginning and 288.1MB in the end (delta: -30.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.0GB. * TraceAbstraction took 824300.03ms. Allocated memory was 329.3MB in the beginning and 8.9GB in the end (delta: 8.5GB). Free memory was 287.1MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.4s, 197 PlacesBefore, 77 PlacesAfterwards, 193 TransitionsBefore, 73 TransitionsAfterwards, 4092 CoEnabledTransitionPairs, 9 FixpointIterations, 121 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 155 TotalNumberOfCompositions, 34878 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6845, independent: 5680, independent conditional: 0, independent unconditional: 5680, dependent: 1165, dependent conditional: 0, dependent unconditional: 1165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1695, independent: 1595, independent conditional: 0, independent unconditional: 1595, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6845, independent: 4085, independent conditional: 0, independent unconditional: 4085, dependent: 1065, dependent conditional: 0, dependent unconditional: 1065, unknown: 1695, unknown conditional: 0, unknown unconditional: 1695] , Statistics on independence cache: Total cache size (in pairs): 375, Positive cache size: 310, Positive conditional cache size: 0, Positive unconditional cache size: 310, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 1228]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1228]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1229]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1248]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1249]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1228]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1229]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1250]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1250]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1253]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1253]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1254]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1251]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1229]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1238]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1238]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1239]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1239]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1240]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 263 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 824.2s, OverallIterations: 29, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 738.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 74.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5510 SdHoareTripleChecker+Valid, 40.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5510 mSDsluCounter, 1216 SdHoareTripleChecker+Invalid, 37.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 656 mSDsCounter, 2713 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23140 IncrementalHoareTripleChecker+Invalid, 25853 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2713 mSolverCounterUnsat, 560 mSDtfsCounter, 23140 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 506 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 466 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1642 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117302occurred in iteration=28, InterpolantAutomatonStates: 381, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 8080 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown