/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 PROGRAM_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/safe004_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 03:51:43,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 03:51:44,049 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 [2023-08-26 03:51:44,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 03:51:44,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 03:51:44,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 03:51:44,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 03:51:44,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 03:51:44,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 03:51:44,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 03:51:44,082 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 03:51:44,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 03:51:44,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 03:51:44,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 03:51:44,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 03:51:44,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 03:51:44,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 03:51:44,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 03:51:44,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 03:51:44,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 03:51:44,084 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 03:51:44,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 03:51:44,084 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 03:51:44,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 03:51:44,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 03:51:44,085 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 03:51:44,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 03:51:44,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 03:51:44,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 03:51:44,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 03:51:44,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 03:51:44,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 03:51:44,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 03:51:44,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 03:51:44,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 03:51:44,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 03:51:44,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 03:51:44,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 03:51:44,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 03:51:44,370 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 03:51:44,370 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 03:51:44,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.i [2023-08-26 03:51:45,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 03:51:45,592 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 03:51:45,592 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.i [2023-08-26 03:51:45,602 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da7af04bf/0d855797937b44fda5f0f5e6fb4748c4/FLAG47fb43ccb [2023-08-26 03:51:45,931 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da7af04bf/0d855797937b44fda5f0f5e6fb4748c4 [2023-08-26 03:51:45,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 03:51:45,934 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 03:51:45,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 03:51:45,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 03:51:45,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 03:51:45,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:51:45" (1/1) ... [2023-08-26 03:51:45,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6966e7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:45, skipping insertion in model container [2023-08-26 03:51:45,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:51:45" (1/1) ... [2023-08-26 03:51:45,966 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 03:51:46,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 03:51:46,183 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 03:51:46,210 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 03:51:46,211 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 03:51:46,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 03:51:46,263 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 03:51:46,263 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 03:51:46,268 INFO L206 MainTranslator]: Completed translation [2023-08-26 03:51:46,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46 WrapperNode [2023-08-26 03:51:46,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 03:51:46,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 03:51:46,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 03:51:46,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 03:51:46,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,313 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 107 [2023-08-26 03:51:46,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 03:51:46,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 03:51:46,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 03:51:46,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 03:51:46,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,336 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 03:51:46,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 03:51:46,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 03:51:46,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 03:51:46,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (1/1) ... [2023-08-26 03:51:46,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 03:51:46,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 03:51:46,404 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) [2023-08-26 03:51:46,408 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 [2023-08-26 03:51:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 03:51:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 03:51:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 03:51:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 03:51:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 03:51:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 03:51:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 03:51:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 03:51:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 03:51:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-26 03:51:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-26 03:51:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 03:51:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 03:51:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 03:51:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 03:51:46,431 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 03:51:46,531 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 03:51:46,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 03:51:46,740 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 03:51:46,813 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 03:51:46,813 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 03:51:46,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:51:46 BoogieIcfgContainer [2023-08-26 03:51:46,815 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 03:51:46,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 03:51:46,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 03:51:46,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 03:51:46,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:51:45" (1/3) ... [2023-08-26 03:51:46,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a55e8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:51:46, skipping insertion in model container [2023-08-26 03:51:46,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:51:46" (2/3) ... [2023-08-26 03:51:46,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a55e8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:51:46, skipping insertion in model container [2023-08-26 03:51:46,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:51:46" (3/3) ... [2023-08-26 03:51:46,820 INFO L112 eAbstractionObserver]: Analyzing ICFG safe004_tso.i [2023-08-26 03:51:46,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 03:51:46,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-26 03:51:46,832 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 03:51:46,864 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 03:51:46,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 115 transitions, 245 flow [2023-08-26 03:51:46,936 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2023-08-26 03:51:46,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 03:51:46,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 3/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 133 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-26 03:51:46,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 115 transitions, 245 flow [2023-08-26 03:51:46,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 112 transitions, 233 flow [2023-08-26 03:51:46,947 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 03:51:46,959 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 112 transitions, 233 flow [2023-08-26 03:51:46,961 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 112 transitions, 233 flow [2023-08-26 03:51:46,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 112 transitions, 233 flow [2023-08-26 03:51:46,980 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2023-08-26 03:51:46,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 03:51:46,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 3/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 133 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-26 03:51:46,983 INFO L119 LiptonReduction]: Number of co-enabled transitions 3980 [2023-08-26 03:51:50,903 INFO L134 LiptonReduction]: Checked pairs total: 14677 [2023-08-26 03:51:50,904 INFO L136 LiptonReduction]: Total number of compositions: 101 [2023-08-26 03:51:50,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 03:51:50,916 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;@2b02387a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 03:51:50,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-08-26 03:51:50,918 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 03:51:50,918 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-26 03:51:50,918 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 03:51:50,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:50,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 03:51:50,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:50,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:50,922 INFO L85 PathProgramCache]: Analyzing trace with hash 593689, now seen corresponding path program 1 times [2023-08-26 03:51:50,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:50,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196867099] [2023-08-26 03:51:50,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:50,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:51,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:51,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196867099] [2023-08-26 03:51:51,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196867099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:51,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:51,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 03:51:51,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201469987] [2023-08-26 03:51:51,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:51,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 03:51:51,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:51,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 03:51:51,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 03:51:51,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 216 [2023-08-26 03:51:51,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:51,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 216 [2023-08-26 03:51:51,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:51,167 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-26 03:51:51,167 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 03:51:51,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3191 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. [2023-08-26 03:51:51,175 INFO L140 encePairwiseOnDemand]: 193/216 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-26 03:51:51,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-26 03:51:51,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 03:51:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 03:51:51,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2023-08-26 03:51:51,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44675925925925924 [2023-08-26 03:51:51,184 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2023-08-26 03:51:51,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2023-08-26 03:51:51,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:51,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2023-08-26 03:51:51,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,196 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,197 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 91 flow. Second operand 2 states and 193 transitions. [2023-08-26 03:51:51,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-26 03:51:51,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 03:51:51,200 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-26 03:51:51,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, 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} [2023-08-26 03:51:51,206 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -25 predicate places. [2023-08-26 03:51:51,207 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-26 03:51:51,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:51,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:51,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 03:51:51,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:51,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:51,208 INFO L85 PathProgramCache]: Analyzing trace with hash -895911644, now seen corresponding path program 1 times [2023-08-26 03:51:51,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:51,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085726190] [2023-08-26 03:51:51,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:51,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:51,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:51,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085726190] [2023-08-26 03:51:51,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085726190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:51,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:51,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 03:51:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88405808] [2023-08-26 03:51:51,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:51,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:51:51,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:51,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:51:51,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:51:51,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-26 03:51:51,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:51,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-26 03:51:51,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:51,391 INFO L124 PetriNetUnfolderBase]: 401/626 cut-off events. [2023-08-26 03:51:51,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 03:51:51,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 626 events. 401/626 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2383 event pairs, 103 based on Foata normal form. 8/634 useless extension candidates. Maximal degree in co-relation 1294. Up to 585 conditions per place. [2023-08-26 03:51:51,394 INFO L140 encePairwiseOnDemand]: 212/216 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-26 03:51:51,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 122 flow [2023-08-26 03:51:51,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:51:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:51:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-26 03:51:51,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39197530864197533 [2023-08-26 03:51:51,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-26 03:51:51,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-26 03:51:51,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:51,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-26 03:51:51,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,402 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 254 transitions. [2023-08-26 03:51:51,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 122 flow [2023-08-26 03:51:51,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 03:51:51,403 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2023-08-26 03:51:51,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-08-26 03:51:51,405 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -23 predicate places. [2023-08-26 03:51:51,405 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2023-08-26 03:51:51,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:51,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:51,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 03:51:51,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:51,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2003457960, now seen corresponding path program 1 times [2023-08-26 03:51:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:51,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218950174] [2023-08-26 03:51:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:51,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:51,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:51,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:51,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218950174] [2023-08-26 03:51:51,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218950174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:51,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:51,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 03:51:51,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917407415] [2023-08-26 03:51:51,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:51,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:51:51,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:51,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:51:51,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:51:51,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-26 03:51:51,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:51,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-26 03:51:51,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:51,554 INFO L124 PetriNetUnfolderBase]: 367/578 cut-off events. [2023-08-26 03:51:51,554 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2023-08-26 03:51:51,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 578 events. 367/578 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2007 event pairs, 103 based on Foata normal form. 14/592 useless extension candidates. Maximal degree in co-relation 1370. Up to 419 conditions per place. [2023-08-26 03:51:51,556 INFO L140 encePairwiseOnDemand]: 213/216 looper letters, 26 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-08-26 03:51:51,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 28 transitions, 143 flow [2023-08-26 03:51:51,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:51:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:51:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-08-26 03:51:51,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38580246913580246 [2023-08-26 03:51:51,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-08-26 03:51:51,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-08-26 03:51:51,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:51,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-08-26 03:51:51,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,560 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,560 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 3 states and 250 transitions. [2023-08-26 03:51:51,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 28 transitions, 143 flow [2023-08-26 03:51:51,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 03:51:51,561 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 64 flow [2023-08-26 03:51:51,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2023-08-26 03:51:51,562 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -21 predicate places. [2023-08-26 03:51:51,562 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 64 flow [2023-08-26 03:51:51,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:51,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:51,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 03:51:51,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:51,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:51,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1333084259, now seen corresponding path program 1 times [2023-08-26 03:51:51,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:51,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9310699] [2023-08-26 03:51:51,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:51,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:51,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:51,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9310699] [2023-08-26 03:51:51,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9310699] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:51,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:51,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 03:51:51,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896097177] [2023-08-26 03:51:51,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:51,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 03:51:51,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:51,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 03:51:51,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 03:51:51,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 216 [2023-08-26 03:51:51,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:51,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 216 [2023-08-26 03:51:51,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:51,707 INFO L124 PetriNetUnfolderBase]: 493/785 cut-off events. [2023-08-26 03:51:51,707 INFO L125 PetriNetUnfolderBase]: For 318/318 co-relation queries the response was YES. [2023-08-26 03:51:51,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 785 events. 493/785 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3280 event pairs, 71 based on Foata normal form. 42/827 useless extension candidates. Maximal degree in co-relation 1895. Up to 382 conditions per place. [2023-08-26 03:51:51,710 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 32 selfloop transitions, 4 changer transitions 5/41 dead transitions. [2023-08-26 03:51:51,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 41 transitions, 207 flow [2023-08-26 03:51:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 03:51:51,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 03:51:51,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2023-08-26 03:51:51,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38773148148148145 [2023-08-26 03:51:51,711 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 335 transitions. [2023-08-26 03:51:51,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 335 transitions. [2023-08-26 03:51:51,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:51,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 335 transitions. [2023-08-26 03:51:51,712 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) [2023-08-26 03:51:51,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,714 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,714 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 64 flow. Second operand 4 states and 335 transitions. [2023-08-26 03:51:51,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 41 transitions, 207 flow [2023-08-26 03:51:51,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 41 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 03:51:51,715 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 86 flow [2023-08-26 03:51:51,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2023-08-26 03:51:51,715 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -18 predicate places. [2023-08-26 03:51:51,715 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 86 flow [2023-08-26 03:51:51,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:51,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:51,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 03:51:51,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:51,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:51,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1178236254, now seen corresponding path program 1 times [2023-08-26 03:51:51,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:51,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547421754] [2023-08-26 03:51:51,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:51,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:51,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:51,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547421754] [2023-08-26 03:51:51,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547421754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:51,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:51,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 03:51:51,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335439010] [2023-08-26 03:51:51,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:51,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:51:51,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:51,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:51:51,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:51:51,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-26 03:51:51,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 86 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) [2023-08-26 03:51:51,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:51,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-26 03:51:51,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:51,804 INFO L124 PetriNetUnfolderBase]: 413/681 cut-off events. [2023-08-26 03:51:51,804 INFO L125 PetriNetUnfolderBase]: For 651/651 co-relation queries the response was YES. [2023-08-26 03:51:51,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1882 conditions, 681 events. 413/681 cut-off events. For 651/651 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2826 event pairs, 184 based on Foata normal form. 24/705 useless extension candidates. Maximal degree in co-relation 1874. Up to 416 conditions per place. [2023-08-26 03:51:51,806 INFO L140 encePairwiseOnDemand]: 213/216 looper letters, 29 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2023-08-26 03:51:51,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 182 flow [2023-08-26 03:51:51,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:51:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:51:51,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-26 03:51:51,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39351851851851855 [2023-08-26 03:51:51,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-26 03:51:51,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-26 03:51:51,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:51,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-26 03:51:51,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,809 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,809 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 86 flow. Second operand 3 states and 255 transitions. [2023-08-26 03:51:51,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 182 flow [2023-08-26 03:51:51,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 173 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 03:51:51,811 INFO L231 Difference]: Finished difference. Result has 34 places, 21 transitions, 90 flow [2023-08-26 03:51:51,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=34, PETRI_TRANSITIONS=21} [2023-08-26 03:51:51,812 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -17 predicate places. [2023-08-26 03:51:51,812 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 90 flow [2023-08-26 03:51:51,812 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) [2023-08-26 03:51:51,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:51,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:51,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 03:51:51,812 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:51,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash -523404866, now seen corresponding path program 1 times [2023-08-26 03:51:51,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:51,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241541621] [2023-08-26 03:51:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:51,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:51,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:51,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241541621] [2023-08-26 03:51:51,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241541621] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:51,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:51,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 03:51:51,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604530609] [2023-08-26 03:51:51,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:51,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 03:51:51,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:51,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 03:51:51,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 03:51:51,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 216 [2023-08-26 03:51:51,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:51,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 216 [2023-08-26 03:51:51,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:51,945 INFO L124 PetriNetUnfolderBase]: 597/1006 cut-off events. [2023-08-26 03:51:51,946 INFO L125 PetriNetUnfolderBase]: For 1121/1121 co-relation queries the response was YES. [2023-08-26 03:51:51,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2622 conditions, 1006 events. 597/1006 cut-off events. For 1121/1121 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4802 event pairs, 121 based on Foata normal form. 33/1039 useless extension candidates. Maximal degree in co-relation 2614. Up to 322 conditions per place. [2023-08-26 03:51:51,948 INFO L140 encePairwiseOnDemand]: 212/216 looper letters, 29 selfloop transitions, 4 changer transitions 18/51 dead transitions. [2023-08-26 03:51:51,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 299 flow [2023-08-26 03:51:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 03:51:51,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 03:51:51,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 418 transitions. [2023-08-26 03:51:51,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.387037037037037 [2023-08-26 03:51:51,950 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 418 transitions. [2023-08-26 03:51:51,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 418 transitions. [2023-08-26 03:51:51,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:51,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 418 transitions. [2023-08-26 03:51:51,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,953 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,953 INFO L175 Difference]: Start difference. First operand has 34 places, 21 transitions, 90 flow. Second operand 5 states and 418 transitions. [2023-08-26 03:51:51,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 299 flow [2023-08-26 03:51:51,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 287 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 03:51:51,955 INFO L231 Difference]: Finished difference. Result has 41 places, 23 transitions, 125 flow [2023-08-26 03:51:51,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=125, PETRI_PLACES=41, PETRI_TRANSITIONS=23} [2023-08-26 03:51:51,956 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -10 predicate places. [2023-08-26 03:51:51,956 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 23 transitions, 125 flow [2023-08-26 03:51:51,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:51,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:51,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 03:51:51,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:51,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash 571738228, now seen corresponding path program 1 times [2023-08-26 03:51:51,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:51,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53577700] [2023-08-26 03:51:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:51,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:51,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:51,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53577700] [2023-08-26 03:51:51,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53577700] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:51,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:51,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 03:51:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495509878] [2023-08-26 03:51:51,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:51,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:51:51,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:51,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:51:51,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:51:51,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-26 03:51:51,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 23 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:51,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:51,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-26 03:51:51,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:52,040 INFO L124 PetriNetUnfolderBase]: 335/588 cut-off events. [2023-08-26 03:51:52,040 INFO L125 PetriNetUnfolderBase]: For 1016/1016 co-relation queries the response was YES. [2023-08-26 03:51:52,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1727 conditions, 588 events. 335/588 cut-off events. For 1016/1016 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2379 event pairs, 191 based on Foata normal form. 10/598 useless extension candidates. Maximal degree in co-relation 1716. Up to 336 conditions per place. [2023-08-26 03:51:52,042 INFO L140 encePairwiseOnDemand]: 213/216 looper letters, 25 selfloop transitions, 2 changer transitions 1/28 dead transitions. [2023-08-26 03:51:52,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 201 flow [2023-08-26 03:51:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:51:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:51:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-08-26 03:51:52,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38271604938271603 [2023-08-26 03:51:52,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-08-26 03:51:52,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-08-26 03:51:52,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:52,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-08-26 03:51:52,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,045 INFO L175 Difference]: Start difference. First operand has 41 places, 23 transitions, 125 flow. Second operand 3 states and 248 transitions. [2023-08-26 03:51:52,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 201 flow [2023-08-26 03:51:52,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 181 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-26 03:51:52,047 INFO L231 Difference]: Finished difference. Result has 38 places, 23 transitions, 117 flow [2023-08-26 03:51:52,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2023-08-26 03:51:52,048 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -13 predicate places. [2023-08-26 03:51:52,048 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 117 flow [2023-08-26 03:51:52,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:52,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:52,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 03:51:52,048 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:52,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash 544013438, now seen corresponding path program 1 times [2023-08-26 03:51:52,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:52,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639361716] [2023-08-26 03:51:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:52,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:52,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:52,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639361716] [2023-08-26 03:51:52,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639361716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:52,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:52,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 03:51:52,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367754603] [2023-08-26 03:51:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:52,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 03:51:52,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 03:51:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 03:51:52,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 216 [2023-08-26 03:51:52,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:52,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 216 [2023-08-26 03:51:52,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:52,153 INFO L124 PetriNetUnfolderBase]: 363/640 cut-off events. [2023-08-26 03:51:52,153 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2023-08-26 03:51:52,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1837 conditions, 640 events. 363/640 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2826 event pairs, 119 based on Foata normal form. 4/644 useless extension candidates. Maximal degree in co-relation 1827. Up to 303 conditions per place. [2023-08-26 03:51:52,155 INFO L140 encePairwiseOnDemand]: 212/216 looper letters, 28 selfloop transitions, 4 changer transitions 7/39 dead transitions. [2023-08-26 03:51:52,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 39 transitions, 244 flow [2023-08-26 03:51:52,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 03:51:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 03:51:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-08-26 03:51:52,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3854166666666667 [2023-08-26 03:51:52,156 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-08-26 03:51:52,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-08-26 03:51:52,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:52,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-08-26 03:51:52,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,158 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,158 INFO L175 Difference]: Start difference. First operand has 38 places, 23 transitions, 117 flow. Second operand 4 states and 333 transitions. [2023-08-26 03:51:52,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 39 transitions, 244 flow [2023-08-26 03:51:52,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 232 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-26 03:51:52,160 INFO L231 Difference]: Finished difference. Result has 40 places, 23 transitions, 123 flow [2023-08-26 03:51:52,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2023-08-26 03:51:52,161 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -11 predicate places. [2023-08-26 03:51:52,161 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 123 flow [2023-08-26 03:51:52,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:52,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:52,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 03:51:52,161 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:52,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash 543975308, now seen corresponding path program 2 times [2023-08-26 03:51:52,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:52,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694976259] [2023-08-26 03:51:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:52,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:52,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:52,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694976259] [2023-08-26 03:51:52,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694976259] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:52,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:52,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 03:51:52,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414830286] [2023-08-26 03:51:52,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:52,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:51:52,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:52,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:51:52,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:51:52,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-26 03:51:52,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 123 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) [2023-08-26 03:51:52,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:52,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-26 03:51:52,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:52,301 INFO L124 PetriNetUnfolderBase]: 246/469 cut-off events. [2023-08-26 03:51:52,301 INFO L125 PetriNetUnfolderBase]: For 815/815 co-relation queries the response was YES. [2023-08-26 03:51:52,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 469 events. 246/469 cut-off events. For 815/815 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2000 event pairs, 72 based on Foata normal form. 25/494 useless extension candidates. Maximal degree in co-relation 1405. Up to 376 conditions per place. [2023-08-26 03:51:52,302 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 31 selfloop transitions, 4 changer transitions 1/36 dead transitions. [2023-08-26 03:51:52,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 249 flow [2023-08-26 03:51:52,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:51:52,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:51:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-26 03:51:52,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3950617283950617 [2023-08-26 03:51:52,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-26 03:51:52,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-26 03:51:52,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:52,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-26 03:51:52,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,305 INFO L175 Difference]: Start difference. First operand has 40 places, 23 transitions, 123 flow. Second operand 3 states and 256 transitions. [2023-08-26 03:51:52,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 249 flow [2023-08-26 03:51:52,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 235 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-26 03:51:52,307 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 139 flow [2023-08-26 03:51:52,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-08-26 03:51:52,307 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -12 predicate places. [2023-08-26 03:51:52,307 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 139 flow [2023-08-26 03:51:52,308 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) [2023-08-26 03:51:52,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:52,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:52,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 03:51:52,308 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:52,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:52,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1731137787, now seen corresponding path program 1 times [2023-08-26 03:51:52,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:52,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472861927] [2023-08-26 03:51:52,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:52,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:52,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:52,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472861927] [2023-08-26 03:51:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472861927] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:52,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:52,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 03:51:52,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835572148] [2023-08-26 03:51:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:52,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 03:51:52,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 03:51:52,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 03:51:52,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-26 03:51:52,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 139 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:52,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-26 03:51:52,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:52,427 INFO L124 PetriNetUnfolderBase]: 165/341 cut-off events. [2023-08-26 03:51:52,427 INFO L125 PetriNetUnfolderBase]: For 404/404 co-relation queries the response was YES. [2023-08-26 03:51:52,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1222 conditions, 341 events. 165/341 cut-off events. For 404/404 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1394 event pairs, 40 based on Foata normal form. 36/377 useless extension candidates. Maximal degree in co-relation 1211. Up to 154 conditions per place. [2023-08-26 03:51:52,428 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 36 selfloop transitions, 7 changer transitions 2/45 dead transitions. [2023-08-26 03:51:52,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 314 flow [2023-08-26 03:51:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 03:51:52,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 03:51:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-08-26 03:51:52,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39351851851851855 [2023-08-26 03:51:52,430 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-08-26 03:51:52,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-08-26 03:51:52,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:52,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-08-26 03:51:52,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,432 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,432 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 139 flow. Second operand 4 states and 340 transitions. [2023-08-26 03:51:52,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 314 flow [2023-08-26 03:51:52,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 03:51:52,433 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 175 flow [2023-08-26 03:51:52,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2023-08-26 03:51:52,434 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -9 predicate places. [2023-08-26 03:51:52,434 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 175 flow [2023-08-26 03:51:52,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:52,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:52,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 03:51:52,434 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:52,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2125679745, now seen corresponding path program 1 times [2023-08-26 03:51:52,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:52,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991144868] [2023-08-26 03:51:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:52,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:52,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:52,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991144868] [2023-08-26 03:51:52,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991144868] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:52,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:52,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 03:51:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125162677] [2023-08-26 03:51:52,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:52,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 03:51:52,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:52,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 03:51:52,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-26 03:51:52,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-26 03:51:52,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:52,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-26 03:51:52,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:52,558 INFO L124 PetriNetUnfolderBase]: 144/295 cut-off events. [2023-08-26 03:51:52,559 INFO L125 PetriNetUnfolderBase]: For 552/552 co-relation queries the response was YES. [2023-08-26 03:51:52,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 295 events. 144/295 cut-off events. For 552/552 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1180 event pairs, 36 based on Foata normal form. 18/313 useless extension candidates. Maximal degree in co-relation 1153. Up to 127 conditions per place. [2023-08-26 03:51:52,560 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 25 selfloop transitions, 10 changer transitions 8/43 dead transitions. [2023-08-26 03:51:52,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 43 transitions, 320 flow [2023-08-26 03:51:52,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 03:51:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 03:51:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 415 transitions. [2023-08-26 03:51:52,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38425925925925924 [2023-08-26 03:51:52,561 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 415 transitions. [2023-08-26 03:51:52,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 415 transitions. [2023-08-26 03:51:52,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:52,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 415 transitions. [2023-08-26 03:51:52,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,563 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,564 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 175 flow. Second operand 5 states and 415 transitions. [2023-08-26 03:51:52,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 43 transitions, 320 flow [2023-08-26 03:51:52,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 296 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-26 03:51:52,565 INFO L231 Difference]: Finished difference. Result has 44 places, 23 transitions, 145 flow [2023-08-26 03:51:52,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=145, PETRI_PLACES=44, PETRI_TRANSITIONS=23} [2023-08-26 03:51:52,566 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -7 predicate places. [2023-08-26 03:51:52,566 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 23 transitions, 145 flow [2023-08-26 03:51:52,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:51:52,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:52,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 03:51:52,566 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-26 03:51:52,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:51:52,566 INFO L85 PathProgramCache]: Analyzing trace with hash -160203510, now seen corresponding path program 1 times [2023-08-26 03:51:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:51:52,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105325484] [2023-08-26 03:51:52,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:51:52,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:51:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:51:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:51:52,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:51:52,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105325484] [2023-08-26 03:51:52,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105325484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:51:52,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:51:52,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 03:51:52,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413944413] [2023-08-26 03:51:52,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:51:52,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:51:52,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:51:52,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:51:52,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:51:52,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-26 03:51:52,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 23 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:51:52,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-26 03:51:52,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:51:52,615 INFO L124 PetriNetUnfolderBase]: 45/97 cut-off events. [2023-08-26 03:51:52,615 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2023-08-26 03:51:52,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 97 events. 45/97 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 209 event pairs, 23 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 379. Up to 51 conditions per place. [2023-08-26 03:51:52,615 INFO L140 encePairwiseOnDemand]: 214/216 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-08-26 03:51:52,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 25 transitions, 202 flow [2023-08-26 03:51:52,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:51:52,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:51:52,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-26 03:51:52,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37808641975308643 [2023-08-26 03:51:52,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-26 03:51:52,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-26 03:51:52,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:51:52,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-26 03:51:52,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,618 INFO L175 Difference]: Start difference. First operand has 44 places, 23 transitions, 145 flow. Second operand 3 states and 245 transitions. [2023-08-26 03:51:52,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 25 transitions, 202 flow [2023-08-26 03:51:52,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 25 transitions, 158 flow, removed 7 selfloop flow, removed 10 redundant places. [2023-08-26 03:51:52,619 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-26 03:51:52,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, 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=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-26 03:51:52,619 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -16 predicate places. [2023-08-26 03:51:52,619 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-26 03:51:52,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:51:52,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (40 of 41 remaining) [2023-08-26 03:51:52,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2023-08-26 03:51:52,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (17 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2023-08-26 03:51:52,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2023-08-26 03:51:52,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2023-08-26 03:51:52,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2023-08-26 03:51:52,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2023-08-26 03:51:52,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2023-08-26 03:51:52,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 03:51:52,624 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:51:52,627 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 03:51:52,627 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 03:51:52,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:51:52 BasicIcfg [2023-08-26 03:51:52,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 03:51:52,629 INFO L158 Benchmark]: Toolchain (without parser) took 6695.72ms. Allocated memory was 343.9MB in the beginning and 434.1MB in the end (delta: 90.2MB). Free memory was 318.7MB in the beginning and 238.4MB in the end (delta: 80.2MB). Peak memory consumption was 171.8MB. Max. memory is 16.0GB. [2023-08-26 03:51:52,630 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 343.9MB. Free memory is still 320.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 03:51:52,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.62ms. Allocated memory is still 343.9MB. Free memory was 318.0MB in the beginning and 297.7MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 03:51:52,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.38ms. Allocated memory is still 343.9MB. Free memory was 297.7MB in the beginning and 295.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 03:51:52,630 INFO L158 Benchmark]: Boogie Preprocessor took 25.93ms. Allocated memory is still 343.9MB. Free memory was 295.6MB in the beginning and 294.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 03:51:52,630 INFO L158 Benchmark]: RCFGBuilder took 474.73ms. Allocated memory is still 343.9MB. Free memory was 293.5MB in the beginning and 262.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-26 03:51:52,630 INFO L158 Benchmark]: TraceAbstraction took 5813.12ms. Allocated memory was 343.9MB in the beginning and 434.1MB in the end (delta: 90.2MB). Free memory was 261.4MB in the beginning and 238.4MB in the end (delta: 23.0MB). Peak memory consumption was 115.1MB. Max. memory is 16.0GB. [2023-08-26 03:51:52,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 343.9MB. Free memory is still 320.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 334.62ms. Allocated memory is still 343.9MB. Free memory was 318.0MB in the beginning and 297.7MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.38ms. Allocated memory is still 343.9MB. Free memory was 297.7MB in the beginning and 295.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.93ms. Allocated memory is still 343.9MB. Free memory was 295.6MB in the beginning and 294.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 474.73ms. Allocated memory is still 343.9MB. Free memory was 293.5MB in the beginning and 262.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 5813.12ms. Allocated memory was 343.9MB in the beginning and 434.1MB in the end (delta: 90.2MB). Free memory was 261.4MB in the beginning and 238.4MB in the end (delta: 23.0MB). Peak memory consumption was 115.1MB. 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: 3.9s, 119 PlacesBefore, 51 PlacesAfterwards, 112 TransitionsBefore, 41 TransitionsAfterwards, 3980 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 101 TotalNumberOfCompositions, 14677 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5845, independent: 5521, independent conditional: 0, independent unconditional: 5521, dependent: 324, dependent conditional: 0, dependent unconditional: 324, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2175, independent: 2103, independent conditional: 0, independent unconditional: 2103, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5845, independent: 3418, independent conditional: 0, independent unconditional: 3418, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 2175, unknown conditional: 0, unknown unconditional: 2175] , Statistics on independence cache: Total cache size (in pairs): 286, Positive cache size: 259, Positive conditional cache size: 0, Positive unconditional cache size: 259, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: 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: 789]: 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: 789]: 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: 791]: 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, 151 locations, 41 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: 5.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 503 IncrementalHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=10, InterpolantAutomatonStates: 42, 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, 0.5s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 307 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 03:51:52,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...