/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 15:43:38,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 15:43:38,167 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 15:43:38,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 15:43:38,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 15:43:38,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 15:43:38,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 15:43:38,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 15:43:38,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 15:43:38,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 15:43:38,207 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 15:43:38,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 15:43:38,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 15:43:38,209 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 15:43:38,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 15:43:38,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 15:43:38,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 15:43:38,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 15:43:38,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 15:43:38,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 15:43:38,210 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 15:43:38,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 15:43:38,211 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 15:43:38,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 15:43:38,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 15:43:38,212 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 15:43:38,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 15:43:38,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:43:38,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 15:43:38,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 15:43:38,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 15:43:38,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 15:43:38,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 15:43:38,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 15:43:38,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 15:43:38,215 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 15:43:38,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 15:43:38,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 15:43:38,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 15:43:38,509 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 15:43:38,511 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 15:43:38,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-08-25 15:43:39,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 15:43:39,891 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 15:43:39,892 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-08-25 15:43:39,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef0735fb3/67ed33a1f9cb4b5b89f98815696215ed/FLAGb0cef4c11 [2023-08-25 15:43:39,928 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef0735fb3/67ed33a1f9cb4b5b89f98815696215ed [2023-08-25 15:43:39,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 15:43:39,934 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 15:43:39,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 15:43:39,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 15:43:39,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 15:43:39,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:43:39" (1/1) ... [2023-08-25 15:43:39,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789d38e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:39, skipping insertion in model container [2023-08-25 15:43:39,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:43:39" (1/1) ... [2023-08-25 15:43:39,991 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 15:43:40,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:43:40,332 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 15:43:40,358 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:43:40,360 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:43:40,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:43:40,411 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:43:40,411 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:43:40,417 INFO L206 MainTranslator]: Completed translation [2023-08-25 15:43:40,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40 WrapperNode [2023-08-25 15:43:40,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 15:43:40,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 15:43:40,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 15:43:40,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 15:43:40,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,455 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2023-08-25 15:43:40,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 15:43:40,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 15:43:40,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 15:43:40,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 15:43:40,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 15:43:40,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 15:43:40,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 15:43:40,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 15:43:40,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (1/1) ... [2023-08-25 15:43:40,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:43:40,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 15:43:40,530 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 15:43:40,553 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 15:43:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 15:43:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 15:43:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 15:43:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 15:43:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 15:43:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 15:43:40,569 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 15:43:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 15:43:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 15:43:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 15:43:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 15:43:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 15:43:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 15:43:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 15:43:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 15:43:40,573 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 15:43:40,716 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 15:43:40,717 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 15:43:41,041 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 15:43:41,195 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 15:43:41,195 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 15:43:41,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:43:41 BoogieIcfgContainer [2023-08-25 15:43:41,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 15:43:41,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 15:43:41,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 15:43:41,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 15:43:41,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:43:39" (1/3) ... [2023-08-25 15:43:41,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24738c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:43:41, skipping insertion in model container [2023-08-25 15:43:41,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:43:40" (2/3) ... [2023-08-25 15:43:41,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24738c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:43:41, skipping insertion in model container [2023-08-25 15:43:41,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:43:41" (3/3) ... [2023-08-25 15:43:41,205 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2023-08-25 15:43:41,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 15:43:41,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2023-08-25 15:43:41,219 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 15:43:41,266 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 15:43:41,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 15:43:41,354 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 15:43:41,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:43:41,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 132 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 15:43:41,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 15:43:41,364 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-25 15:43:41,367 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 15:43:41,380 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 15:43:41,386 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 15:43:41,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-25 15:43:41,420 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 15:43:41,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:43:41,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 132 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 15:43:41,424 INFO L119 LiptonReduction]: Number of co-enabled transitions 4142 [2023-08-25 15:43:45,874 INFO L134 LiptonReduction]: Checked pairs total: 14901 [2023-08-25 15:43:45,875 INFO L136 LiptonReduction]: Total number of compositions: 98 [2023-08-25 15:43:45,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 15:43:45,890 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;@6460bb02, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 15:43:45,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2023-08-25 15:43:45,892 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 15:43:45,892 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 15:43:45,892 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:43:45,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:45,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 15:43:45,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:45,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:45,898 INFO L85 PathProgramCache]: Analyzing trace with hash 603618, now seen corresponding path program 1 times [2023-08-25 15:43:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2331837] [2023-08-25 15:43:45,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:45,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:46,043 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 15:43:46,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:46,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2331837] [2023-08-25 15:43:46,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2331837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:46,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:46,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:43:46,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756262037] [2023-08-25 15:43:46,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:46,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 15:43:46,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:46,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 15:43:46,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 15:43:46,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 215 [2023-08-25 15:43:46,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 15:43:46,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:46,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 215 [2023-08-25 15:43:46,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:46,230 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 15:43:46,231 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 15:43:46,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3174 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 15:43:46,238 INFO L140 encePairwiseOnDemand]: 191/215 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 15:43:46,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 15:43:46,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 15:43:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 15:43:46,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-25 15:43:46,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4558139534883721 [2023-08-25 15:43:46,250 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-25 15:43:46,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-25 15:43:46,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:46,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-25 15:43:46,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 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 15:43:46,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 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 15:43:46,261 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 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 15:43:46,262 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 93 flow. Second operand 2 states and 196 transitions. [2023-08-25 15:43:46,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 15:43:46,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 15:43:46,266 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 15:43:46,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 15:43:46,270 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -26 predicate places. [2023-08-25 15:43:46,270 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 15:43:46,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 15:43:46,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:46,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:43:46,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 15:43:46,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:46,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:46,272 INFO L85 PathProgramCache]: Analyzing trace with hash -95488647, now seen corresponding path program 1 times [2023-08-25 15:43:46,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:46,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765129603] [2023-08-25 15:43:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:46,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:46,431 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 15:43:46,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:46,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765129603] [2023-08-25 15:43:46,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765129603] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:46,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:46,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:43:46,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078821020] [2023-08-25 15:43:46,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:46,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:43:46,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:46,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:43:46,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:43:46,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 215 [2023-08-25 15:43:46,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 15:43:46,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:46,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 215 [2023-08-25 15:43:46,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:46,521 INFO L124 PetriNetUnfolderBase]: 343/544 cut-off events. [2023-08-25 15:43:46,522 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:43:46,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 544 events. 343/544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2034 event pairs, 135 based on Foata normal form. 32/576 useless extension candidates. Maximal degree in co-relation 1130. Up to 341 conditions per place. [2023-08-25 15:43:46,527 INFO L140 encePairwiseOnDemand]: 212/215 looper letters, 26 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-08-25 15:43:46,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 122 flow [2023-08-25 15:43:46,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:43:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:43:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-25 15:43:46,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3984496124031008 [2023-08-25 15:43:46,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-25 15:43:46,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-25 15:43:46,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:46,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-25 15:43:46,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 15:43:46,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 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 15:43:46,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 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 15:43:46,543 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 257 transitions. [2023-08-25 15:43:46,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 122 flow [2023-08-25 15:43:46,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 15:43:46,545 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 48 flow [2023-08-25 15:43:46,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-08-25 15:43:46,547 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-08-25 15:43:46,547 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 48 flow [2023-08-25 15:43:46,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 15:43:46,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:46,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:43:46,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 15:43:46,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:46,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1562919375, now seen corresponding path program 1 times [2023-08-25 15:43:46,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:46,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629099337] [2023-08-25 15:43:46,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:46,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:46,677 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 15:43:46,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:46,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629099337] [2023-08-25 15:43:46,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629099337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:46,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:46,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:43:46,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285422762] [2023-08-25 15:43:46,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:46,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:43:46,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:46,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:43:46,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:43:46,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 215 [2023-08-25 15:43:46,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 15:43:46,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:46,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 215 [2023-08-25 15:43:46,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:46,767 INFO L124 PetriNetUnfolderBase]: 325/518 cut-off events. [2023-08-25 15:43:46,767 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-08-25 15:43:46,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 518 events. 325/518 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1780 event pairs, 103 based on Foata normal form. 8/526 useless extension candidates. Maximal degree in co-relation 1187. Up to 359 conditions per place. [2023-08-25 15:43:46,771 INFO L140 encePairwiseOnDemand]: 212/215 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-25 15:43:46,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 113 flow [2023-08-25 15:43:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:43:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:43:46,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-25 15:43:46,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3922480620155039 [2023-08-25 15:43:46,773 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-25 15:43:46,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-25 15:43:46,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:46,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-25 15:43:46,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 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 15:43:46,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 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 15:43:46,780 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 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 15:43:46,780 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 48 flow. Second operand 3 states and 253 transitions. [2023-08-25 15:43:46,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 113 flow [2023-08-25 15:43:46,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 107 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 15:43:46,782 INFO L231 Difference]: Finished difference. Result has 29 places, 17 transitions, 52 flow [2023-08-25 15:43:46,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=29, PETRI_TRANSITIONS=17} [2023-08-25 15:43:46,784 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -23 predicate places. [2023-08-25 15:43:46,784 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 52 flow [2023-08-25 15:43:46,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 15:43:46,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:46,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:43:46,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 15:43:46,788 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:46,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:46,788 INFO L85 PathProgramCache]: Analyzing trace with hash -121722282, now seen corresponding path program 1 times [2023-08-25 15:43:46,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:46,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757929349] [2023-08-25 15:43:46,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:46,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:46,861 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 15:43:46,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:46,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757929349] [2023-08-25 15:43:46,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757929349] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:46,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:46,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:43:46,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814896030] [2023-08-25 15:43:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:46,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:43:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:43:46,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:43:46,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 215 [2023-08-25 15:43:46,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 17 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 15:43:46,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:46,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 215 [2023-08-25 15:43:46,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:46,962 INFO L124 PetriNetUnfolderBase]: 367/596 cut-off events. [2023-08-25 15:43:46,963 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2023-08-25 15:43:46,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 596 events. 367/596 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2261 event pairs, 131 based on Foata normal form. 24/620 useless extension candidates. Maximal degree in co-relation 1377. Up to 220 conditions per place. [2023-08-25 15:43:46,966 INFO L140 encePairwiseOnDemand]: 211/215 looper letters, 25 selfloop transitions, 3 changer transitions 5/33 dead transitions. [2023-08-25 15:43:46,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 157 flow [2023-08-25 15:43:46,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:43:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:43:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2023-08-25 15:43:46,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38953488372093026 [2023-08-25 15:43:46,968 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 335 transitions. [2023-08-25 15:43:46,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 335 transitions. [2023-08-25 15:43:46,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:46,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 335 transitions. [2023-08-25 15:43:46,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 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 15:43:46,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 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 15:43:46,972 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 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 15:43:46,972 INFO L175 Difference]: Start difference. First operand has 29 places, 17 transitions, 52 flow. Second operand 4 states and 335 transitions. [2023-08-25 15:43:46,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 157 flow [2023-08-25 15:43:46,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 151 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 15:43:46,973 INFO L231 Difference]: Finished difference. Result has 32 places, 17 transitions, 62 flow [2023-08-25 15:43:46,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2023-08-25 15:43:46,974 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -20 predicate places. [2023-08-25 15:43:46,974 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 62 flow [2023-08-25 15:43:46,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 15:43:46,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:46,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:43:46,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 15:43:46,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:46,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:46,976 INFO L85 PathProgramCache]: Analyzing trace with hash -694767701, now seen corresponding path program 1 times [2023-08-25 15:43:46,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:46,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96430098] [2023-08-25 15:43:46,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:46,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:47,129 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 15:43:47,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:47,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96430098] [2023-08-25 15:43:47,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96430098] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:47,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:47,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:43:47,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675103494] [2023-08-25 15:43:47,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:47,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:43:47,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:47,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:43:47,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:43:47,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 215 [2023-08-25 15:43:47,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 15:43:47,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:47,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 215 [2023-08-25 15:43:47,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:47,198 INFO L124 PetriNetUnfolderBase]: 146/262 cut-off events. [2023-08-25 15:43:47,199 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2023-08-25 15:43:47,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 262 events. 146/262 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 822 event pairs, 52 based on Foata normal form. 15/277 useless extension candidates. Maximal degree in co-relation 697. Up to 187 conditions per place. [2023-08-25 15:43:47,201 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 26 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2023-08-25 15:43:47,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 161 flow [2023-08-25 15:43:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:43:47,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:43:47,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-25 15:43:47,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4015503875968992 [2023-08-25 15:43:47,203 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-25 15:43:47,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-25 15:43:47,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:47,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-25 15:43:47,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 15:43:47,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 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 15:43:47,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 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 15:43:47,206 INFO L175 Difference]: Start difference. First operand has 32 places, 17 transitions, 62 flow. Second operand 3 states and 259 transitions. [2023-08-25 15:43:47,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 161 flow [2023-08-25 15:43:47,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 144 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 15:43:47,209 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 76 flow [2023-08-25 15:43:47,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-08-25 15:43:47,211 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-25 15:43:47,211 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 76 flow [2023-08-25 15:43:47,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 15:43:47,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:47,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:43:47,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 15:43:47,211 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:47,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash -695752904, now seen corresponding path program 1 times [2023-08-25 15:43:47,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:47,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365438318] [2023-08-25 15:43:47,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:47,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:47,345 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 15:43:47,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:47,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365438318] [2023-08-25 15:43:47,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365438318] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:47,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:47,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:43:47,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736765926] [2023-08-25 15:43:47,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:47,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:43:47,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:47,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:43:47,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:43:47,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 215 [2023-08-25 15:43:47,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 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 15:43:47,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:47,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 215 [2023-08-25 15:43:47,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:47,414 INFO L124 PetriNetUnfolderBase]: 104/198 cut-off events. [2023-08-25 15:43:47,415 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-25 15:43:47,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 198 events. 104/198 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 581 event pairs, 38 based on Foata normal form. 17/215 useless extension candidates. Maximal degree in co-relation 588. Up to 76 conditions per place. [2023-08-25 15:43:47,416 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 32 selfloop transitions, 7 changer transitions 0/39 dead transitions. [2023-08-25 15:43:47,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 211 flow [2023-08-25 15:43:47,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:43:47,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:43:47,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-25 15:43:47,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4 [2023-08-25 15:43:47,418 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-25 15:43:47,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-25 15:43:47,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:47,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-25 15:43:47,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 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 15:43:47,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 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 15:43:47,421 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 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 15:43:47,421 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 76 flow. Second operand 4 states and 344 transitions. [2023-08-25 15:43:47,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 211 flow [2023-08-25 15:43:47,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 207 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 15:43:47,423 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 112 flow [2023-08-25 15:43:47,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-25 15:43:47,423 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2023-08-25 15:43:47,424 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 112 flow [2023-08-25 15:43:47,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 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 15:43:47,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:47,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:43:47,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 15:43:47,424 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:47,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:47,425 INFO L85 PathProgramCache]: Analyzing trace with hash -93542967, now seen corresponding path program 1 times [2023-08-25 15:43:47,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:47,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039596782] [2023-08-25 15:43:47,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:47,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:47,558 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 15:43:47,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:47,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039596782] [2023-08-25 15:43:47,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039596782] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:47,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:47,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 15:43:47,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784315203] [2023-08-25 15:43:47,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:47,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 15:43:47,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:47,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 15:43:47,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 15:43:47,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 215 [2023-08-25 15:43:47,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 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 15:43:47,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:47,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 215 [2023-08-25 15:43:47,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:47,617 INFO L124 PetriNetUnfolderBase]: 93/176 cut-off events. [2023-08-25 15:43:47,617 INFO L125 PetriNetUnfolderBase]: For 159/159 co-relation queries the response was YES. [2023-08-25 15:43:47,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 176 events. 93/176 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 514 event pairs, 36 based on Foata normal form. 7/183 useless extension candidates. Maximal degree in co-relation 562. Up to 76 conditions per place. [2023-08-25 15:43:47,619 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 29 selfloop transitions, 10 changer transitions 0/39 dead transitions. [2023-08-25 15:43:47,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 235 flow [2023-08-25 15:43:47,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 15:43:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 15:43:47,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 420 transitions. [2023-08-25 15:43:47,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39069767441860465 [2023-08-25 15:43:47,621 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 420 transitions. [2023-08-25 15:43:47,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 420 transitions. [2023-08-25 15:43:47,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:47,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 420 transitions. [2023-08-25 15:43:47,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 0 states have call successors, (0), 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 15:43:47,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 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 15:43:47,624 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 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 15:43:47,624 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 112 flow. Second operand 5 states and 420 transitions. [2023-08-25 15:43:47,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 235 flow [2023-08-25 15:43:47,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 209 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-25 15:43:47,626 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 118 flow [2023-08-25 15:43:47,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-25 15:43:47,627 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -17 predicate places. [2023-08-25 15:43:47,627 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 118 flow [2023-08-25 15:43:47,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 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 15:43:47,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:47,627 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 15:43:47,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 15:43:47,628 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:47,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:47,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1782435303, now seen corresponding path program 1 times [2023-08-25 15:43:47,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:47,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452188100] [2023-08-25 15:43:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:47,671 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 15:43:47,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:47,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452188100] [2023-08-25 15:43:47,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452188100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:47,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:47,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:43:47,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400910917] [2023-08-25 15:43:47,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:47,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:43:47,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:47,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:43:47,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:43:47,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 215 [2023-08-25 15:43:47,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 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 15:43:47,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:47,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 215 [2023-08-25 15:43:47,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:47,753 INFO L124 PetriNetUnfolderBase]: 149/291 cut-off events. [2023-08-25 15:43:47,753 INFO L125 PetriNetUnfolderBase]: For 436/436 co-relation queries the response was YES. [2023-08-25 15:43:47,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 291 events. 149/291 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1074 event pairs, 40 based on Foata normal form. 2/293 useless extension candidates. Maximal degree in co-relation 962. Up to 139 conditions per place. [2023-08-25 15:43:47,755 INFO L140 encePairwiseOnDemand]: 211/215 looper letters, 25 selfloop transitions, 3 changer transitions 29/57 dead transitions. [2023-08-25 15:43:47,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 57 transitions, 446 flow [2023-08-25 15:43:47,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 15:43:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 15:43:47,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 414 transitions. [2023-08-25 15:43:47,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3851162790697674 [2023-08-25 15:43:47,757 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 414 transitions. [2023-08-25 15:43:47,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 414 transitions. [2023-08-25 15:43:47,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:47,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 414 transitions. [2023-08-25 15:43:47,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 0 states have call successors, (0), 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 15:43:47,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 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 15:43:47,760 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 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 15:43:47,760 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 118 flow. Second operand 5 states and 414 transitions. [2023-08-25 15:43:47,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 57 transitions, 446 flow [2023-08-25 15:43:47,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 57 transitions, 366 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-08-25 15:43:47,763 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 103 flow [2023-08-25 15:43:47,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2023-08-25 15:43:47,763 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -15 predicate places. [2023-08-25 15:43:47,763 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 103 flow [2023-08-25 15:43:47,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 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 15:43:47,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:43:47,764 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 15:43:47,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 15:43:47,764 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 15:43:47,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:43:47,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1039552553, now seen corresponding path program 2 times [2023-08-25 15:43:47,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:43:47,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215921230] [2023-08-25 15:43:47,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:43:47,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:43:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:43:47,811 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 15:43:47,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:43:47,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215921230] [2023-08-25 15:43:47,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215921230] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:43:47,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:43:47,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:43:47,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547557655] [2023-08-25 15:43:47,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:43:47,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:43:47,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:43:47,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:43:47,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:43:47,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 215 [2023-08-25 15:43:47,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 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 15:43:47,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:43:47,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 215 [2023-08-25 15:43:47,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:43:47,860 INFO L124 PetriNetUnfolderBase]: 66/129 cut-off events. [2023-08-25 15:43:47,860 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2023-08-25 15:43:47,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 129 events. 66/129 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 351 event pairs, 7 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 418. Up to 78 conditions per place. [2023-08-25 15:43:47,860 INFO L140 encePairwiseOnDemand]: 212/215 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2023-08-25 15:43:47,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 206 flow [2023-08-25 15:43:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:43:47,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:43:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 325 transitions. [2023-08-25 15:43:47,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37790697674418605 [2023-08-25 15:43:47,862 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 325 transitions. [2023-08-25 15:43:47,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 325 transitions. [2023-08-25 15:43:47,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:43:47,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 325 transitions. [2023-08-25 15:43:47,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 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 15:43:47,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 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 15:43:47,865 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 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 15:43:47,865 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 103 flow. Second operand 4 states and 325 transitions. [2023-08-25 15:43:47,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 206 flow [2023-08-25 15:43:47,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 15:43:47,866 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-25 15:43:47,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-25 15:43:47,867 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -17 predicate places. [2023-08-25 15:43:47,867 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-25 15:43:47,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 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 15:43:47,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (42 of 43 remaining) [2023-08-25 15:43:47,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2023-08-25 15:43:47,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2023-08-25 15:43:47,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2023-08-25 15:43:47,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2023-08-25 15:43:47,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2023-08-25 15:43:47,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (36 of 43 remaining) [2023-08-25 15:43:47,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2023-08-25 15:43:47,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2023-08-25 15:43:47,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2023-08-25 15:43:47,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2023-08-25 15:43:47,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2023-08-25 15:43:47,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2023-08-25 15:43:47,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2023-08-25 15:43:47,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2023-08-25 15:43:47,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2023-08-25 15:43:47,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2023-08-25 15:43:47,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2023-08-25 15:43:47,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (18 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 43 remaining) [2023-08-25 15:43:47,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2023-08-25 15:43:47,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2023-08-25 15:43:47,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2023-08-25 15:43:47,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2023-08-25 15:43:47,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2023-08-25 15:43:47,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2023-08-25 15:43:47,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2023-08-25 15:43:47,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2023-08-25 15:43:47,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 15:43:47,874 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:43:47,878 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 15:43:47,878 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 15:43:47,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:43:47 BasicIcfg [2023-08-25 15:43:47,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 15:43:47,881 INFO L158 Benchmark]: Toolchain (without parser) took 7947.68ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 321.0MB in the beginning and 228.2MB in the end (delta: 92.8MB). Peak memory consumption was 196.0MB. Max. memory is 16.0GB. [2023-08-25 15:43:47,881 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 346.0MB. Free memory is still 322.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 15:43:47,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.55ms. Allocated memory is still 346.0MB. Free memory was 320.6MB in the beginning and 300.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 15:43:47,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.26ms. Allocated memory is still 346.0MB. Free memory was 300.0MB in the beginning and 297.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 15:43:47,882 INFO L158 Benchmark]: Boogie Preprocessor took 41.21ms. Allocated memory is still 346.0MB. Free memory was 297.9MB in the beginning and 296.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 15:43:47,882 INFO L158 Benchmark]: RCFGBuilder took 699.82ms. Allocated memory is still 346.0MB. Free memory was 296.3MB in the beginning and 314.4MB in the end (delta: -18.1MB). Peak memory consumption was 31.1MB. Max. memory is 16.0GB. [2023-08-25 15:43:47,883 INFO L158 Benchmark]: TraceAbstraction took 6681.75ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 314.4MB in the beginning and 228.2MB in the end (delta: 86.2MB). Peak memory consumption was 188.0MB. Max. memory is 16.0GB. [2023-08-25 15:43:47,884 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 346.0MB. Free memory is still 322.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 481.55ms. Allocated memory is still 346.0MB. Free memory was 320.6MB in the beginning and 300.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.26ms. Allocated memory is still 346.0MB. Free memory was 300.0MB in the beginning and 297.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.21ms. Allocated memory is still 346.0MB. Free memory was 297.9MB in the beginning and 296.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 699.82ms. Allocated memory is still 346.0MB. Free memory was 296.3MB in the beginning and 314.4MB in the end (delta: -18.1MB). Peak memory consumption was 31.1MB. Max. memory is 16.0GB. * TraceAbstraction took 6681.75ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 314.4MB in the beginning and 228.2MB in the end (delta: 86.2MB). Peak memory consumption was 188.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 121 PlacesBefore, 52 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4142 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 98 TotalNumberOfCompositions, 14901 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5856, independent: 5566, independent conditional: 0, independent unconditional: 5566, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2204, independent: 2122, independent conditional: 0, independent unconditional: 2122, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5856, independent: 3444, independent conditional: 0, independent unconditional: 3444, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 2204, unknown conditional: 0, unknown unconditional: 2204] , Statistics on independence cache: Total cache size (in pairs): 369, Positive cache size: 340, Positive conditional cache size: 0, Positive unconditional cache size: 340, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 43 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: 6.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 358 IncrementalHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 358 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=7, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 15:43:47,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...