/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 23:58:10,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 23:58:11,049 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 [2023-08-24 23:58:11,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 23:58:11,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 23:58:11,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 23:58:11,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 23:58:11,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 23:58:11,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 23:58:11,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 23:58:11,083 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 23:58:11,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 23:58:11,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 23:58:11,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 23:58:11,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 23:58:11,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 23:58:11,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 23:58:11,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 23:58:11,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 23:58:11,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 23:58:11,086 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 23:58:11,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 23:58:11,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 23:58:11,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 23:58:11,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 23:58:11,087 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 23:58:11,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 23:58:11,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 23:58:11,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 23:58:11,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 23:58:11,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 23:58:11,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 23:58:11,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 23:58:11,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 23:58:11,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 23:58:11,089 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 23:58:11,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 23:58:11,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 23:58:11,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 23:58:11,302 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 23:58:11,302 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 23:58:11,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.i [2023-08-24 23:58:12,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 23:58:12,453 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 23:58:12,453 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.i [2023-08-24 23:58:12,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f867052fb/217d24f074b1435a8050f9230fc348bc/FLAGab81dee65 [2023-08-24 23:58:12,471 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f867052fb/217d24f074b1435a8050f9230fc348bc [2023-08-24 23:58:12,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 23:58:12,473 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 23:58:12,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 23:58:12,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 23:58:12,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 23:58:12,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785e8a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12, skipping insertion in model container [2023-08-24 23:58:12,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,517 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 23:58:12,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 23:58:12,773 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 23:58:12,799 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-24 23:58:12,800 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-24 23:58:12,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 23:58:12,850 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 23:58:12,851 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 23:58:12,855 INFO L206 MainTranslator]: Completed translation [2023-08-24 23:58:12,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12 WrapperNode [2023-08-24 23:58:12,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 23:58:12,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 23:58:12,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 23:58:12,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 23:58:12,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,903 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 107 [2023-08-24 23:58:12,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 23:58:12,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 23:58:12,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 23:58:12,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 23:58:12,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,926 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 23:58:12,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 23:58:12,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 23:58:12,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 23:58:12,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (1/1) ... [2023-08-24 23:58:12,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 23:58:12,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 23:58:12,966 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) [2023-08-24 23:58:12,973 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 [2023-08-24 23:58:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 23:58:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 23:58:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 23:58:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-24 23:58:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-24 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-24 23:58:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-24 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-24 23:58:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-24 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 23:58:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 23:58:12,992 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 23:58:13,094 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 23:58:13,095 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 23:58:13,242 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 23:58:13,357 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 23:58:13,357 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 23:58:13,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 11:58:13 BoogieIcfgContainer [2023-08-24 23:58:13,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 23:58:13,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 23:58:13,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 23:58:13,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 23:58:13,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 11:58:12" (1/3) ... [2023-08-24 23:58:13,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71671d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 11:58:13, skipping insertion in model container [2023-08-24 23:58:13,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:58:12" (2/3) ... [2023-08-24 23:58:13,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71671d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 11:58:13, skipping insertion in model container [2023-08-24 23:58:13,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 11:58:13" (3/3) ... [2023-08-24 23:58:13,364 INFO L112 eAbstractionObserver]: Analyzing ICFG safe001_tso.i [2023-08-24 23:58:13,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 23:58:13,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-24 23:58:13,375 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 23:58:13,406 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 23:58:13,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 115 transitions, 245 flow [2023-08-24 23:58:13,475 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2023-08-24 23:58:13,476 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 23:58:13,480 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 132 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. [2023-08-24 23:58:13,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 115 transitions, 245 flow [2023-08-24 23:58:13,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 112 transitions, 233 flow [2023-08-24 23:58:13,486 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 23:58:13,491 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 112 transitions, 233 flow [2023-08-24 23:58:13,493 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 112 transitions, 233 flow [2023-08-24 23:58:13,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 112 transitions, 233 flow [2023-08-24 23:58:13,519 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2023-08-24 23:58:13,519 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 23:58:13,520 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. [2023-08-24 23:58:13,522 INFO L119 LiptonReduction]: Number of co-enabled transitions 4010 [2023-08-24 23:58:17,544 INFO L134 LiptonReduction]: Checked pairs total: 14170 [2023-08-24 23:58:17,544 INFO L136 LiptonReduction]: Total number of compositions: 102 [2023-08-24 23:58:17,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 23:58:17,556 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;@29140649, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 23:58:17,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-08-24 23:58:17,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 23:58:17,558 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-24 23:58:17,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 23:58:17,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:17,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-24 23:58:17,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:17,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:17,561 INFO L85 PathProgramCache]: Analyzing trace with hash 593691, now seen corresponding path program 1 times [2023-08-24 23:58:17,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:17,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977501445] [2023-08-24 23:58:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:17,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:17,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:17,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:17,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977501445] [2023-08-24 23:58:17,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977501445] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:17,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:17,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 23:58:17,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923885929] [2023-08-24 23:58:17,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:17,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 23:58:17,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 23:58:17,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 23:58:17,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 217 [2023-08-24 23:58:17,716 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) [2023-08-24 23:58:17,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:17,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 217 [2023-08-24 23:58:17,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:17,844 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-24 23:58:17,845 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-24 23:58:17,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3172 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. [2023-08-24 23:58:17,852 INFO L140 encePairwiseOnDemand]: 194/217 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-24 23:58:17,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-24 23:58:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 23:58:17,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 23:58:17,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2023-08-24 23:58:17,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4447004608294931 [2023-08-24 23:58:17,862 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2023-08-24 23:58:17,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2023-08-24 23:58:17,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:17,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2023-08-24 23:58:17,868 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) [2023-08-24 23:58:17,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:17,871 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:17,872 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 91 flow. Second operand 2 states and 193 transitions. [2023-08-24 23:58:17,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-24 23:58:17,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-24 23:58:17,876 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-24 23:58:17,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, 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} [2023-08-24 23:58:17,879 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -25 predicate places. [2023-08-24 23:58:17,879 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-24 23:58:17,879 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) [2023-08-24 23:58:17,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:17,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:17,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 23:58:17,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:17,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:17,881 INFO L85 PathProgramCache]: Analyzing trace with hash -896000955, now seen corresponding path program 1 times [2023-08-24 23:58:17,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:17,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312600514] [2023-08-24 23:58:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:18,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:18,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312600514] [2023-08-24 23:58:18,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312600514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:18,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:18,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 23:58:18,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325164742] [2023-08-24 23:58:18,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:18,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:58:18,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:18,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:58:18,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:58:18,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-24 23:58:18,025 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) [2023-08-24 23:58:18,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:18,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-24 23:58:18,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:18,072 INFO L124 PetriNetUnfolderBase]: 379/596 cut-off events. [2023-08-24 23:58:18,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 23:58:18,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 596 events. 379/596 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2100 event pairs, 123 based on Foata normal form. 16/612 useless extension candidates. Maximal degree in co-relation 1234. Up to 473 conditions per place. [2023-08-24 23:58:18,075 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 24 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-08-24 23:58:18,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 116 flow [2023-08-24 23:58:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:58:18,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:58:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-24 23:58:18,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38863287250384027 [2023-08-24 23:58:18,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-24 23:58:18,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-24 23:58:18,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:18,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-24 23:58:18,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,079 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,080 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 253 transitions. [2023-08-24 23:58:18,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 116 flow [2023-08-24 23:58:18,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 116 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 23:58:18,080 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2023-08-24 23:58:18,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, 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} [2023-08-24 23:58:18,081 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -23 predicate places. [2023-08-24 23:58:18,081 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2023-08-24 23:58:18,081 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) [2023-08-24 23:58:18,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:18,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:18,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 23:58:18,082 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:18,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:18,082 INFO L85 PathProgramCache]: Analyzing trace with hash -2021738473, now seen corresponding path program 1 times [2023-08-24 23:58:18,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:18,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951360639] [2023-08-24 23:58:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:18,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:18,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:18,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951360639] [2023-08-24 23:58:18,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951360639] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:18,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:18,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 23:58:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917795021] [2023-08-24 23:58:18,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:18,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:58:18,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:18,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:58:18,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:58:18,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-24 23:58:18,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:18,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-24 23:58:18,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:18,178 INFO L124 PetriNetUnfolderBase]: 395/644 cut-off events. [2023-08-24 23:58:18,178 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-08-24 23:58:18,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 644 events. 395/644 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2441 event pairs, 211 based on Foata normal form. 32/676 useless extension candidates. Maximal degree in co-relation 1483. Up to 389 conditions per place. [2023-08-24 23:58:18,181 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-24 23:58:18,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 28 transitions, 135 flow [2023-08-24 23:58:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:58:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:58:18,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-24 23:58:18,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38863287250384027 [2023-08-24 23:58:18,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-24 23:58:18,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-24 23:58:18,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:18,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-24 23:58:18,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,184 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 3 states and 253 transitions. [2023-08-24 23:58:18,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 28 transitions, 135 flow [2023-08-24 23:58:18,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 23:58:18,185 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 67 flow [2023-08-24 23:58:18,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2023-08-24 23:58:18,186 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -21 predicate places. [2023-08-24 23:58:18,186 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 67 flow [2023-08-24 23:58:18,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:18,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:18,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 23:58:18,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:18,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:18,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2063492621, now seen corresponding path program 1 times [2023-08-24 23:58:18,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:18,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640201865] [2023-08-24 23:58:18,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:18,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:18,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:18,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:18,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640201865] [2023-08-24 23:58:18,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640201865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:18,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:18,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 23:58:18,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883291887] [2023-08-24 23:58:18,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:18,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:58:18,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:18,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:58:18,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:58:18,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-24 23:58:18,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:18,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-24 23:58:18,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:18,343 INFO L124 PetriNetUnfolderBase]: 385/630 cut-off events. [2023-08-24 23:58:18,343 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2023-08-24 23:58:18,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 630 events. 385/630 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2491 event pairs, 103 based on Foata normal form. 4/634 useless extension candidates. Maximal degree in co-relation 1519. Up to 589 conditions per place. [2023-08-24 23:58:18,345 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 27 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2023-08-24 23:58:18,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 155 flow [2023-08-24 23:58:18,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:58:18,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:58:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-24 23:58:18,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3901689708141321 [2023-08-24 23:58:18,347 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-24 23:58:18,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-24 23:58:18,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:18,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-24 23:58:18,347 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) [2023-08-24 23:58:18,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,349 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 67 flow. Second operand 3 states and 254 transitions. [2023-08-24 23:58:18,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 155 flow [2023-08-24 23:58:18,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-24 23:58:18,352 INFO L231 Difference]: Finished difference. Result has 32 places, 21 transitions, 81 flow [2023-08-24 23:58:18,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2023-08-24 23:58:18,353 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -19 predicate places. [2023-08-24 23:58:18,354 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 81 flow [2023-08-24 23:58:18,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:18,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:18,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 23:58:18,355 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:18,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:18,355 INFO L85 PathProgramCache]: Analyzing trace with hash 456237448, now seen corresponding path program 1 times [2023-08-24 23:58:18,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:18,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937601269] [2023-08-24 23:58:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:18,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:18,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:18,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937601269] [2023-08-24 23:58:18,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937601269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:18,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:18,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 23:58:18,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015470549] [2023-08-24 23:58:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:18,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 23:58:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 23:58:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 23:58:18,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 217 [2023-08-24 23:58:18,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 81 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) [2023-08-24 23:58:18,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:18,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 217 [2023-08-24 23:58:18,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:18,502 INFO L124 PetriNetUnfolderBase]: 415/680 cut-off events. [2023-08-24 23:58:18,502 INFO L125 PetriNetUnfolderBase]: For 386/386 co-relation queries the response was YES. [2023-08-24 23:58:18,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1725 conditions, 680 events. 415/680 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2669 event pairs, 101 based on Foata normal form. 28/708 useless extension candidates. Maximal degree in co-relation 1718. Up to 380 conditions per place. [2023-08-24 23:58:18,504 INFO L140 encePairwiseOnDemand]: 212/217 looper letters, 27 selfloop transitions, 3 changer transitions 8/38 dead transitions. [2023-08-24 23:58:18,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 207 flow [2023-08-24 23:58:18,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 23:58:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 23:58:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-08-24 23:58:18,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3813364055299539 [2023-08-24 23:58:18,506 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-08-24 23:58:18,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-08-24 23:58:18,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:18,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-08-24 23:58:18,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,509 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,509 INFO L175 Difference]: Start difference. First operand has 32 places, 21 transitions, 81 flow. Second operand 4 states and 331 transitions. [2023-08-24 23:58:18,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 207 flow [2023-08-24 23:58:18,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 23:58:18,512 INFO L231 Difference]: Finished difference. Result has 35 places, 19 transitions, 78 flow [2023-08-24 23:58:18,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=78, 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=4, PETRI_FLOW=78, PETRI_PLACES=35, PETRI_TRANSITIONS=19} [2023-08-24 23:58:18,514 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -16 predicate places. [2023-08-24 23:58:18,514 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 19 transitions, 78 flow [2023-08-24 23:58:18,514 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) [2023-08-24 23:58:18,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:18,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:18,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 23:58:18,514 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:18,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:18,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1565488827, now seen corresponding path program 1 times [2023-08-24 23:58:18,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:18,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817045505] [2023-08-24 23:58:18,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:18,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:18,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:18,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817045505] [2023-08-24 23:58:18,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817045505] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:18,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:18,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 23:58:18,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863113006] [2023-08-24 23:58:18,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:18,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:58:18,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:18,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:58:18,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:58:18,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-24 23:58:18,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 19 transitions, 78 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) [2023-08-24 23:58:18,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:18,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-24 23:58:18,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:18,601 INFO L124 PetriNetUnfolderBase]: 191/324 cut-off events. [2023-08-24 23:58:18,601 INFO L125 PetriNetUnfolderBase]: For 282/282 co-relation queries the response was YES. [2023-08-24 23:58:18,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 324 events. 191/324 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1059 event pairs, 69 based on Foata normal form. 4/328 useless extension candidates. Maximal degree in co-relation 887. Up to 273 conditions per place. [2023-08-24 23:58:18,602 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 28 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2023-08-24 23:58:18,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 178 flow [2023-08-24 23:58:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:58:18,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:58:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-24 23:58:18,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3901689708141321 [2023-08-24 23:58:18,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-24 23:58:18,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-24 23:58:18,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:18,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-24 23:58:18,604 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) [2023-08-24 23:58:18,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,606 INFO L175 Difference]: Start difference. First operand has 35 places, 19 transitions, 78 flow. Second operand 3 states and 254 transitions. [2023-08-24 23:58:18,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 178 flow [2023-08-24 23:58:18,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 159 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-24 23:58:18,608 INFO L231 Difference]: Finished difference. Result has 33 places, 19 transitions, 74 flow [2023-08-24 23:58:18,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, 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=74, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2023-08-24 23:58:18,610 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -18 predicate places. [2023-08-24 23:58:18,612 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 74 flow [2023-08-24 23:58:18,612 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) [2023-08-24 23:58:18,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:18,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:18,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 23:58:18,612 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:18,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:18,613 INFO L85 PathProgramCache]: Analyzing trace with hash 72655960, now seen corresponding path program 1 times [2023-08-24 23:58:18,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:18,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821170358] [2023-08-24 23:58:18,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:18,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:18,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:18,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821170358] [2023-08-24 23:58:18,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821170358] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:18,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:18,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 23:58:18,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153139364] [2023-08-24 23:58:18,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:18,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:58:18,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:58:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:58:18,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-24 23:58:18,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 74 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) [2023-08-24 23:58:18,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:18,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-24 23:58:18,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:18,758 INFO L124 PetriNetUnfolderBase]: 146/262 cut-off events. [2023-08-24 23:58:18,759 INFO L125 PetriNetUnfolderBase]: For 151/151 co-relation queries the response was YES. [2023-08-24 23:58:18,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 262 events. 146/262 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 827 event pairs, 44 based on Foata normal form. 15/277 useless extension candidates. Maximal degree in co-relation 738. Up to 187 conditions per place. [2023-08-24 23:58:18,760 INFO L140 encePairwiseOnDemand]: 212/217 looper letters, 28 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-08-24 23:58:18,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 180 flow [2023-08-24 23:58:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:58:18,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:58:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-24 23:58:18,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3932411674347158 [2023-08-24 23:58:18,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-24 23:58:18,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-24 23:58:18,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:18,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-24 23:58:18,762 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) [2023-08-24 23:58:18,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,764 INFO L175 Difference]: Start difference. First operand has 33 places, 19 transitions, 74 flow. Second operand 3 states and 256 transitions. [2023-08-24 23:58:18,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 180 flow [2023-08-24 23:58:18,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 23:58:18,766 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 96 flow [2023-08-24 23:58:18,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2023-08-24 23:58:18,768 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -17 predicate places. [2023-08-24 23:58:18,769 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 96 flow [2023-08-24 23:58:18,772 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) [2023-08-24 23:58:18,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:18,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:18,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 23:58:18,772 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:18,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:18,773 INFO L85 PathProgramCache]: Analyzing trace with hash 424642101, now seen corresponding path program 1 times [2023-08-24 23:58:18,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:18,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748624260] [2023-08-24 23:58:18,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:18,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:18,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748624260] [2023-08-24 23:58:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748624260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 23:58:18,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566230820] [2023-08-24 23:58:18,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:18,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 23:58:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:18,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 23:58:18,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 23:58:18,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 217 [2023-08-24 23:58:18,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:18,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 217 [2023-08-24 23:58:18,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:18,862 INFO L124 PetriNetUnfolderBase]: 210/380 cut-off events. [2023-08-24 23:58:18,863 INFO L125 PetriNetUnfolderBase]: For 277/277 co-relation queries the response was YES. [2023-08-24 23:58:18,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1219 conditions, 380 events. 210/380 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1396 event pairs, 55 based on Foata normal form. 10/390 useless extension candidates. Maximal degree in co-relation 1210. Up to 175 conditions per place. [2023-08-24 23:58:18,864 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 28 selfloop transitions, 3 changer transitions 9/40 dead transitions. [2023-08-24 23:58:18,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 245 flow [2023-08-24 23:58:18,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 23:58:18,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 23:58:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2023-08-24 23:58:18,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3790322580645161 [2023-08-24 23:58:18,867 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 329 transitions. [2023-08-24 23:58:18,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 329 transitions. [2023-08-24 23:58:18,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:18,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 329 transitions. [2023-08-24 23:58:18,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,869 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,869 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 96 flow. Second operand 4 states and 329 transitions. [2023-08-24 23:58:18,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 245 flow [2023-08-24 23:58:18,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 23:58:18,871 INFO L231 Difference]: Finished difference. Result has 37 places, 20 transitions, 94 flow [2023-08-24 23:58:18,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=37, PETRI_TRANSITIONS=20} [2023-08-24 23:58:18,872 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -14 predicate places. [2023-08-24 23:58:18,872 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 20 transitions, 94 flow [2023-08-24 23:58:18,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:18,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:18,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:18,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 23:58:18,873 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:18,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:18,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1682541309, now seen corresponding path program 2 times [2023-08-24 23:58:18,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:18,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464447067] [2023-08-24 23:58:18,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:18,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:18,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:18,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464447067] [2023-08-24 23:58:18,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464447067] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:18,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 23:58:18,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117654424] [2023-08-24 23:58:18,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:18,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 23:58:18,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:18,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 23:58:18,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-24 23:58:18,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-24 23:58:18,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 20 transitions, 94 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) [2023-08-24 23:58:18,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:18,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-24 23:58:18,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:19,002 INFO L124 PetriNetUnfolderBase]: 68/138 cut-off events. [2023-08-24 23:58:19,002 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-08-24 23:58:19,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 138 events. 68/138 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 381 event pairs, 14 based on Foata normal form. 15/153 useless extension candidates. Maximal degree in co-relation 460. Up to 59 conditions per place. [2023-08-24 23:58:19,003 INFO L140 encePairwiseOnDemand]: 212/217 looper letters, 28 selfloop transitions, 7 changer transitions 0/35 dead transitions. [2023-08-24 23:58:19,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 220 flow [2023-08-24 23:58:19,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 23:58:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 23:58:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2023-08-24 23:58:19,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3870967741935484 [2023-08-24 23:58:19,004 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 336 transitions. [2023-08-24 23:58:19,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 336 transitions. [2023-08-24 23:58:19,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:19,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 336 transitions. [2023-08-24 23:58:19,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,006 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,006 INFO L175 Difference]: Start difference. First operand has 37 places, 20 transitions, 94 flow. Second operand 4 states and 336 transitions. [2023-08-24 23:58:19,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 220 flow [2023-08-24 23:58:19,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 198 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-24 23:58:19,007 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 118 flow [2023-08-24 23:58:19,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-24 23:58:19,008 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -16 predicate places. [2023-08-24 23:58:19,008 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 118 flow [2023-08-24 23:58:19,008 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) [2023-08-24 23:58:19,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:19,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:19,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 23:58:19,008 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:19,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:19,009 INFO L85 PathProgramCache]: Analyzing trace with hash 423354831, now seen corresponding path program 1 times [2023-08-24 23:58:19,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:19,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727570516] [2023-08-24 23:58:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:19,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:19,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727570516] [2023-08-24 23:58:19,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727570516] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:19,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:19,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 23:58:19,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575328500] [2023-08-24 23:58:19,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:19,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 23:58:19,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:19,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 23:58:19,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 23:58:19,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 217 [2023-08-24 23:58:19,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:19,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 217 [2023-08-24 23:58:19,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:19,085 INFO L124 PetriNetUnfolderBase]: 80/167 cut-off events. [2023-08-24 23:58:19,085 INFO L125 PetriNetUnfolderBase]: For 233/233 co-relation queries the response was YES. [2023-08-24 23:58:19,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 167 events. 80/167 cut-off events. For 233/233 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 500 event pairs, 12 based on Foata normal form. 5/172 useless extension candidates. Maximal degree in co-relation 614. Up to 83 conditions per place. [2023-08-24 23:58:19,086 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 24 selfloop transitions, 2 changer transitions 22/48 dead transitions. [2023-08-24 23:58:19,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 350 flow [2023-08-24 23:58:19,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 23:58:19,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 23:58:19,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 405 transitions. [2023-08-24 23:58:19,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37327188940092165 [2023-08-24 23:58:19,087 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 405 transitions. [2023-08-24 23:58:19,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 405 transitions. [2023-08-24 23:58:19,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:19,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 405 transitions. [2023-08-24 23:58:19,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,090 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,090 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 118 flow. Second operand 5 states and 405 transitions. [2023-08-24 23:58:19,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 350 flow [2023-08-24 23:58:19,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 315 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-24 23:58:19,091 INFO L231 Difference]: Finished difference. Result has 39 places, 23 transitions, 114 flow [2023-08-24 23:58:19,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=33, 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=5, PETRI_FLOW=114, PETRI_PLACES=39, PETRI_TRANSITIONS=23} [2023-08-24 23:58:19,091 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -12 predicate places. [2023-08-24 23:58:19,091 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 114 flow [2023-08-24 23:58:19,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:19,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:19,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 23:58:19,092 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:19,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:19,092 INFO L85 PathProgramCache]: Analyzing trace with hash 532696019, now seen corresponding path program 2 times [2023-08-24 23:58:19,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:19,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386993660] [2023-08-24 23:58:19,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:19,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:19,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:19,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386993660] [2023-08-24 23:58:19,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386993660] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:19,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:19,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 23:58:19,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93961430] [2023-08-24 23:58:19,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:19,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 23:58:19,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:19,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 23:58:19,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-24 23:58:19,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-24 23:58:19,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 114 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) [2023-08-24 23:58:19,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:19,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-24 23:58:19,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:19,215 INFO L124 PetriNetUnfolderBase]: 21/56 cut-off events. [2023-08-24 23:58:19,215 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2023-08-24 23:58:19,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 56 events. 21/56 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 4 based on Foata normal form. 5/61 useless extension candidates. Maximal degree in co-relation 198. Up to 20 conditions per place. [2023-08-24 23:58:19,215 INFO L140 encePairwiseOnDemand]: 212/217 looper letters, 21 selfloop transitions, 10 changer transitions 0/31 dead transitions. [2023-08-24 23:58:19,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 209 flow [2023-08-24 23:58:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 23:58:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 23:58:19,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 407 transitions. [2023-08-24 23:58:19,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37511520737327186 [2023-08-24 23:58:19,217 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 407 transitions. [2023-08-24 23:58:19,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 407 transitions. [2023-08-24 23:58:19,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:19,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 407 transitions. [2023-08-24 23:58:19,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,219 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,219 INFO L175 Difference]: Start difference. First operand has 39 places, 23 transitions, 114 flow. Second operand 5 states and 407 transitions. [2023-08-24 23:58:19,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 209 flow [2023-08-24 23:58:19,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 180 flow, removed 7 selfloop flow, removed 6 redundant places. [2023-08-24 23:58:19,220 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 122 flow [2023-08-24 23:58:19,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-08-24 23:58:19,220 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -15 predicate places. [2023-08-24 23:58:19,220 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 122 flow [2023-08-24 23:58:19,221 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) [2023-08-24 23:58:19,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:58:19,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:19,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 23:58:19,221 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 23:58:19,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:58:19,221 INFO L85 PathProgramCache]: Analyzing trace with hash -913907970, now seen corresponding path program 1 times [2023-08-24 23:58:19,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:58:19,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332715437] [2023-08-24 23:58:19,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:58:19,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:58:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:58:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:58:19,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:58:19,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332715437] [2023-08-24 23:58:19,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332715437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:58:19,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:58:19,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 23:58:19,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050230481] [2023-08-24 23:58:19,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:58:19,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:58:19,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:58:19,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:58:19,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:58:19,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-24 23:58:19,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 122 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) [2023-08-24 23:58:19,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:58:19,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-24 23:58:19,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:58:19,266 INFO L124 PetriNetUnfolderBase]: 21/55 cut-off events. [2023-08-24 23:58:19,266 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2023-08-24 23:58:19,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 55 events. 21/55 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 11 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 203. Up to 39 conditions per place. [2023-08-24 23:58:19,266 INFO L140 encePairwiseOnDemand]: 215/217 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-08-24 23:58:19,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 202 flow [2023-08-24 23:58:19,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:58:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:58:19,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-08-24 23:58:19,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37480798771121354 [2023-08-24 23:58:19,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-08-24 23:58:19,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-08-24 23:58:19,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:58:19,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-08-24 23:58:19,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:58:19,269 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 122 flow. Second operand 3 states and 244 transitions. [2023-08-24 23:58:19,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 202 flow [2023-08-24 23:58:19,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 170 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-24 23:58:19,270 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2023-08-24 23:58:19,270 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2023-08-24 23:58:19,270 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -17 predicate places. [2023-08-24 23:58:19,270 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2023-08-24 23:58:19,270 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) [2023-08-24 23:58:19,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (40 of 41 remaining) [2023-08-24 23:58:19,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2023-08-24 23:58:19,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2023-08-24 23:58:19,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2023-08-24 23:58:19,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2023-08-24 23:58:19,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2023-08-24 23:58:19,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2023-08-24 23:58:19,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (17 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2023-08-24 23:58:19,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2023-08-24 23:58:19,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2023-08-24 23:58:19,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2023-08-24 23:58:19,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2023-08-24 23:58:19,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2023-08-24 23:58:19,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2023-08-24 23:58:19,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2023-08-24 23:58:19,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2023-08-24 23:58:19,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 23:58:19,275 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:58:19,278 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 23:58:19,278 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 23:58:19,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 11:58:19 BasicIcfg [2023-08-24 23:58:19,280 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 23:58:19,281 INFO L158 Benchmark]: Toolchain (without parser) took 6807.53ms. Allocated memory was 408.9MB in the beginning and 501.2MB in the end (delta: 92.3MB). Free memory was 384.1MB in the beginning and 419.2MB in the end (delta: -35.1MB). Peak memory consumption was 60.3MB. Max. memory is 16.0GB. [2023-08-24 23:58:19,281 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 408.9MB. Free memory is still 386.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 23:58:19,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.17ms. Allocated memory is still 408.9MB. Free memory was 383.5MB in the beginning and 363.1MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 23:58:19,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.00ms. Allocated memory is still 408.9MB. Free memory was 363.1MB in the beginning and 361.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 23:58:19,281 INFO L158 Benchmark]: Boogie Preprocessor took 26.14ms. Allocated memory is still 408.9MB. Free memory was 361.0MB in the beginning and 359.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 23:58:19,281 INFO L158 Benchmark]: RCFGBuilder took 427.67ms. Allocated memory is still 408.9MB. Free memory was 359.4MB in the beginning and 327.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-24 23:58:19,281 INFO L158 Benchmark]: TraceAbstraction took 5920.25ms. Allocated memory was 408.9MB in the beginning and 501.2MB in the end (delta: 92.3MB). Free memory was 326.9MB in the beginning and 419.2MB in the end (delta: -92.3MB). Peak memory consumption was 1.6MB. Max. memory is 16.0GB. [2023-08-24 23:58:19,282 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 408.9MB. Free memory is still 386.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 382.17ms. Allocated memory is still 408.9MB. Free memory was 383.5MB in the beginning and 363.1MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.00ms. Allocated memory is still 408.9MB. Free memory was 363.1MB in the beginning and 361.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.14ms. Allocated memory is still 408.9MB. Free memory was 361.0MB in the beginning and 359.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 427.67ms. Allocated memory is still 408.9MB. Free memory was 359.4MB in the beginning and 327.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 5920.25ms. Allocated memory was 408.9MB in the beginning and 501.2MB in the end (delta: 92.3MB). Free memory was 326.9MB in the beginning and 419.2MB in the end (delta: -92.3MB). Peak memory consumption was 1.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 119 PlacesBefore, 51 PlacesAfterwards, 112 TransitionsBefore, 41 TransitionsAfterwards, 4010 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 102 TotalNumberOfCompositions, 14170 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5887, independent: 5581, independent conditional: 0, independent unconditional: 5581, dependent: 306, dependent conditional: 0, dependent unconditional: 306, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2198, independent: 2127, independent conditional: 0, independent unconditional: 2127, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5887, independent: 3454, independent conditional: 0, independent unconditional: 3454, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 2198, unknown conditional: 0, unknown unconditional: 2198] , Statistics on independence cache: Total cache size (in pairs): 279, Positive cache size: 254, Positive conditional cache size: 0, Positive unconditional cache size: 254, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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: 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: 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: 5.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 435 IncrementalHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 435 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=11, 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, 0.6s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 319 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! [2023-08-24 23:58:19,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...