/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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 01:49:03,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 01:49:04,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 01:49:04,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 01:49:04,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 01:49:04,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 01:49:04,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 01:49:04,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 01:49:04,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 01:49:04,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 01:49:04,067 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 01:49:04,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 01:49:04,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 01:49:04,068 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 01:49:04,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 01:49:04,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 01:49:04,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 01:49:04,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 01:49:04,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 01:49:04,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 01:49:04,070 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 01:49:04,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 01:49:04,071 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 01:49:04,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 01:49:04,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 01:49:04,072 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 01:49:04,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 01:49:04,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 01:49:04,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 01:49:04,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 01:49:04,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 01:49:04,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 01:49:04,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 01:49:04,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 01:49:04,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 01:49:04,074 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 01:49:04,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 01:49:04,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 01:49:04,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 01:49:04,418 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 01:49:04,420 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 01:49:04,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 01:49:05,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 01:49:05,950 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 01:49:05,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 01:49:05,970 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830875494/abd6ea1bc4fa4b85bcd98ff507af6842/FLAGf477c4893 [2023-08-25 01:49:05,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830875494/abd6ea1bc4fa4b85bcd98ff507af6842 [2023-08-25 01:49:05,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 01:49:05,991 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 01:49:05,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 01:49:05,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 01:49:05,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 01:49:05,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 01:49:05" (1/1) ... [2023-08-25 01:49:05,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14bd7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:05, skipping insertion in model container [2023-08-25 01:49:05,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 01:49:05" (1/1) ... [2023-08-25 01:49:06,053 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 01:49:06,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 01:49:06,405 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 01:49:06,434 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 01:49:06,436 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 01:49:06,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 01:49:06,504 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 01:49:06,504 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 01:49:06,510 INFO L206 MainTranslator]: Completed translation [2023-08-25 01:49:06,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06 WrapperNode [2023-08-25 01:49:06,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 01:49:06,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 01:49:06,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 01:49:06,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 01:49:06,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,563 INFO L138 Inliner]: procedures = 177, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 120 [2023-08-25 01:49:06,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 01:49:06,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 01:49:06,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 01:49:06,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 01:49:06,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 01:49:06,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 01:49:06,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 01:49:06,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 01:49:06,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (1/1) ... [2023-08-25 01:49:06,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 01:49:06,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 01:49:06,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 01:49:06,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 01:49:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 01:49:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 01:49:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 01:49:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 01:49:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 01:49:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 01:49:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 01:49:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 01:49:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 01:49:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 01:49:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 01:49:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-25 01:49:06,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-25 01:49:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 01:49:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 01:49:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 01:49:06,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 01:49:06,668 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 01:49:06,823 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 01:49:06,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 01:49:07,169 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 01:49:07,313 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 01:49:07,314 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 01:49:07,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 01:49:07 BoogieIcfgContainer [2023-08-25 01:49:07,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 01:49:07,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 01:49:07,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 01:49:07,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 01:49:07,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 01:49:05" (1/3) ... [2023-08-25 01:49:07,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d825187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 01:49:07, skipping insertion in model container [2023-08-25 01:49:07,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:49:06" (2/3) ... [2023-08-25 01:49:07,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d825187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 01:49:07, skipping insertion in model container [2023-08-25 01:49:07,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 01:49:07" (3/3) ... [2023-08-25 01:49:07,323 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 01:49:07,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 01:49:07,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-25 01:49:07,338 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 01:49:07,380 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 01:49:07,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 135 transitions, 290 flow [2023-08-25 01:49:07,450 INFO L124 PetriNetUnfolderBase]: 3/131 cut-off events. [2023-08-25 01:49:07,450 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:49:07,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 3/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2023-08-25 01:49:07,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 135 transitions, 290 flow [2023-08-25 01:49:07,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 131 transitions, 274 flow [2023-08-25 01:49:07,462 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 01:49:07,470 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 131 transitions, 274 flow [2023-08-25 01:49:07,472 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 131 transitions, 274 flow [2023-08-25 01:49:07,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 131 transitions, 274 flow [2023-08-25 01:49:07,497 INFO L124 PetriNetUnfolderBase]: 3/131 cut-off events. [2023-08-25 01:49:07,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:49:07,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 3/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2023-08-25 01:49:07,501 INFO L119 LiptonReduction]: Number of co-enabled transitions 5840 [2023-08-25 01:49:12,267 INFO L134 LiptonReduction]: Checked pairs total: 17863 [2023-08-25 01:49:12,267 INFO L136 LiptonReduction]: Total number of compositions: 114 [2023-08-25 01:49:12,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 01:49:12,284 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;@7c8d9dc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 01:49:12,284 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-08-25 01:49:12,286 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 01:49:12,286 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 01:49:12,286 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:49:12,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:12,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 01:49:12,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:12,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:12,291 INFO L85 PathProgramCache]: Analyzing trace with hash 687423, now seen corresponding path program 1 times [2023-08-25 01:49:12,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:12,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725915897] [2023-08-25 01:49:12,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:12,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:12,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:12,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:12,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725915897] [2023-08-25 01:49:12,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725915897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:12,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:12,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:49:12,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856335668] [2023-08-25 01:49:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:12,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 01:49:12,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:12,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 01:49:12,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 01:49:12,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 249 [2023-08-25 01:49:12,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 110 flow. Second operand has 2 states, 2 states have (on average 91.5) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:12,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:12,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 249 [2023-08-25 01:49:12,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:12,824 INFO L124 PetriNetUnfolderBase]: 1737/2442 cut-off events. [2023-08-25 01:49:12,824 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2023-08-25 01:49:12,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5020 conditions, 2442 events. 1737/2442 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9537 event pairs, 1737 based on Foata normal form. 0/2298 useless extension candidates. Maximal degree in co-relation 5008. Up to 2443 conditions per place. [2023-08-25 01:49:12,841 INFO L140 encePairwiseOnDemand]: 221/249 looper letters, 20 selfloop transitions, 0 changer transitions 1/21 dead transitions. [2023-08-25 01:49:12,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 21 transitions, 96 flow [2023-08-25 01:49:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 01:49:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 01:49:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 229 transitions. [2023-08-25 01:49:12,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4598393574297189 [2023-08-25 01:49:12,855 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 229 transitions. [2023-08-25 01:49:12,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 229 transitions. [2023-08-25 01:49:12,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:12,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 229 transitions. [2023-08-25 01:49:12,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 114.5) internal successors, (229), 2 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:12,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:12,865 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:12,867 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 110 flow. Second operand 2 states and 229 transitions. [2023-08-25 01:49:12,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 21 transitions, 96 flow [2023-08-25 01:49:12,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 21 transitions, 92 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 01:49:12,872 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 48 flow [2023-08-25 01:49:12,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-08-25 01:49:12,876 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -30 predicate places. [2023-08-25 01:49:12,877 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 48 flow [2023-08-25 01:49:12,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.5) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:12,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:12,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:12,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 01:49:12,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:12,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:12,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1833295571, now seen corresponding path program 1 times [2023-08-25 01:49:12,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:12,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25014315] [2023-08-25 01:49:12,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:12,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:13,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25014315] [2023-08-25 01:49:13,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25014315] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:13,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:13,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:49:13,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677527164] [2023-08-25 01:49:13,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:13,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:49:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:49:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:49:13,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 249 [2023-08-25 01:49:13,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:13,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 249 [2023-08-25 01:49:13,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:13,220 INFO L124 PetriNetUnfolderBase]: 1218/1743 cut-off events. [2023-08-25 01:49:13,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 01:49:13,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3619 conditions, 1743 events. 1218/1743 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7228 event pairs, 225 based on Foata normal form. 36/1779 useless extension candidates. Maximal degree in co-relation 3616. Up to 1486 conditions per place. [2023-08-25 01:49:13,231 INFO L140 encePairwiseOnDemand]: 246/249 looper letters, 32 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2023-08-25 01:49:13,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 150 flow [2023-08-25 01:49:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:49:13,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:49:13,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2023-08-25 01:49:13,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4042838018741633 [2023-08-25 01:49:13,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2023-08-25 01:49:13,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2023-08-25 01:49:13,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:13,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2023-08-25 01:49:13,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,244 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 48 flow. Second operand 3 states and 302 transitions. [2023-08-25 01:49:13,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 150 flow [2023-08-25 01:49:13,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 01:49:13,246 INFO L231 Difference]: Finished difference. Result has 33 places, 20 transitions, 56 flow [2023-08-25 01:49:13,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2023-08-25 01:49:13,248 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -28 predicate places. [2023-08-25 01:49:13,250 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 56 flow [2023-08-25 01:49:13,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:13,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:13,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 01:49:13,255 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:13,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:13,258 INFO L85 PathProgramCache]: Analyzing trace with hash 997586582, now seen corresponding path program 1 times [2023-08-25 01:49:13,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:13,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173157037] [2023-08-25 01:49:13,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:13,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:13,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:13,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173157037] [2023-08-25 01:49:13,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173157037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:13,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:13,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:49:13,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984229947] [2023-08-25 01:49:13,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:13,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:49:13,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:13,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:49:13,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:49:13,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 249 [2023-08-25 01:49:13,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:13,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 249 [2023-08-25 01:49:13,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:13,586 INFO L124 PetriNetUnfolderBase]: 1407/2040 cut-off events. [2023-08-25 01:49:13,586 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2023-08-25 01:49:13,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4496 conditions, 2040 events. 1407/2040 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8148 event pairs, 457 based on Foata normal form. 108/2148 useless extension candidates. Maximal degree in co-relation 4491. Up to 751 conditions per place. [2023-08-25 01:49:13,596 INFO L140 encePairwiseOnDemand]: 245/249 looper letters, 30 selfloop transitions, 3 changer transitions 5/38 dead transitions. [2023-08-25 01:49:13,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 171 flow [2023-08-25 01:49:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:49:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:49:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 392 transitions. [2023-08-25 01:49:13,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39357429718875503 [2023-08-25 01:49:13,598 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 392 transitions. [2023-08-25 01:49:13,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 392 transitions. [2023-08-25 01:49:13,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:13,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 392 transitions. [2023-08-25 01:49:13,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,602 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,602 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 56 flow. Second operand 4 states and 392 transitions. [2023-08-25 01:49:13,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 171 flow [2023-08-25 01:49:13,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 165 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 01:49:13,604 INFO L231 Difference]: Finished difference. Result has 36 places, 20 transitions, 66 flow [2023-08-25 01:49:13,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=36, PETRI_TRANSITIONS=20} [2023-08-25 01:49:13,605 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -25 predicate places. [2023-08-25 01:49:13,605 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 66 flow [2023-08-25 01:49:13,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:13,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:13,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 01:49:13,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:13,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:13,606 INFO L85 PathProgramCache]: Analyzing trace with hash 860391518, now seen corresponding path program 1 times [2023-08-25 01:49:13,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:13,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221250588] [2023-08-25 01:49:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:13,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:13,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:13,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221250588] [2023-08-25 01:49:13,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221250588] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:13,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:13,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 01:49:13,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924659329] [2023-08-25 01:49:13,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:13,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:49:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:13,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:49:13,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:49:13,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 249 [2023-08-25 01:49:13,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:13,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 249 [2023-08-25 01:49:13,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:13,803 INFO L124 PetriNetUnfolderBase]: 636/939 cut-off events. [2023-08-25 01:49:13,803 INFO L125 PetriNetUnfolderBase]: For 510/510 co-relation queries the response was YES. [2023-08-25 01:49:13,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2274 conditions, 939 events. 636/939 cut-off events. For 510/510 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3542 event pairs, 120 based on Foata normal form. 18/957 useless extension candidates. Maximal degree in co-relation 2267. Up to 787 conditions per place. [2023-08-25 01:49:13,809 INFO L140 encePairwiseOnDemand]: 246/249 looper letters, 28 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2023-08-25 01:49:13,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 30 transitions, 156 flow [2023-08-25 01:49:13,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:49:13,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:49:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-25 01:49:13,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3989290495314592 [2023-08-25 01:49:13,811 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-25 01:49:13,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-25 01:49:13,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:13,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-25 01:49:13,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,814 INFO L175 Difference]: Start difference. First operand has 36 places, 20 transitions, 66 flow. Second operand 3 states and 298 transitions. [2023-08-25 01:49:13,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 30 transitions, 156 flow [2023-08-25 01:49:13,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 136 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-25 01:49:13,819 INFO L231 Difference]: Finished difference. Result has 34 places, 20 transitions, 60 flow [2023-08-25 01:49:13,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2023-08-25 01:49:13,820 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -27 predicate places. [2023-08-25 01:49:13,820 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 60 flow [2023-08-25 01:49:13,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:13,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:13,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 01:49:13,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:13,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:13,821 INFO L85 PathProgramCache]: Analyzing trace with hash 902332166, now seen corresponding path program 1 times [2023-08-25 01:49:13,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:13,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440134326] [2023-08-25 01:49:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:13,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:13,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:13,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440134326] [2023-08-25 01:49:13,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440134326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:13,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:13,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:49:13,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556930066] [2023-08-25 01:49:13,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:13,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:49:13,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:13,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:49:13,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:49:13,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 249 [2023-08-25 01:49:13,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:13,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:13,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 249 [2023-08-25 01:49:13,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:14,064 INFO L124 PetriNetUnfolderBase]: 803/1208 cut-off events. [2023-08-25 01:49:14,064 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2023-08-25 01:49:14,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2768 conditions, 1208 events. 803/1208 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5253 event pairs, 137 based on Foata normal form. 54/1262 useless extension candidates. Maximal degree in co-relation 2762. Up to 512 conditions per place. [2023-08-25 01:49:14,070 INFO L140 encePairwiseOnDemand]: 245/249 looper letters, 36 selfloop transitions, 3 changer transitions 5/44 dead transitions. [2023-08-25 01:49:14,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 209 flow [2023-08-25 01:49:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:49:14,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:49:14,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2023-08-25 01:49:14,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39959839357429716 [2023-08-25 01:49:14,072 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 398 transitions. [2023-08-25 01:49:14,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 398 transitions. [2023-08-25 01:49:14,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:14,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 398 transitions. [2023-08-25 01:49:14,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,076 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,076 INFO L175 Difference]: Start difference. First operand has 34 places, 20 transitions, 60 flow. Second operand 4 states and 398 transitions. [2023-08-25 01:49:14,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 209 flow [2023-08-25 01:49:14,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 203 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 01:49:14,078 INFO L231 Difference]: Finished difference. Result has 37 places, 20 transitions, 70 flow [2023-08-25 01:49:14,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=20} [2023-08-25 01:49:14,081 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -24 predicate places. [2023-08-25 01:49:14,081 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 20 transitions, 70 flow [2023-08-25 01:49:14,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:14,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:14,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 01:49:14,082 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:14,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:14,082 INFO L85 PathProgramCache]: Analyzing trace with hash -2092504833, now seen corresponding path program 1 times [2023-08-25 01:49:14,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:14,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159669253] [2023-08-25 01:49:14,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:14,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:14,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:14,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159669253] [2023-08-25 01:49:14,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159669253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:14,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:14,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 01:49:14,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237256150] [2023-08-25 01:49:14,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:14,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 01:49:14,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:14,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 01:49:14,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 01:49:14,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 249 [2023-08-25 01:49:14,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 20 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:14,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 249 [2023-08-25 01:49:14,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:14,318 INFO L124 PetriNetUnfolderBase]: 354/559 cut-off events. [2023-08-25 01:49:14,318 INFO L125 PetriNetUnfolderBase]: For 359/359 co-relation queries the response was YES. [2023-08-25 01:49:14,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1472 conditions, 559 events. 354/559 cut-off events. For 359/359 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1932 event pairs, 98 based on Foata normal form. 16/575 useless extension candidates. Maximal degree in co-relation 1464. Up to 512 conditions per place. [2023-08-25 01:49:14,321 INFO L140 encePairwiseOnDemand]: 243/249 looper letters, 29 selfloop transitions, 5 changer transitions 0/34 dead transitions. [2023-08-25 01:49:14,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 34 transitions, 180 flow [2023-08-25 01:49:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 01:49:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 01:49:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2023-08-25 01:49:14,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4042838018741633 [2023-08-25 01:49:14,323 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2023-08-25 01:49:14,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2023-08-25 01:49:14,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:14,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2023-08-25 01:49:14,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,327 INFO L175 Difference]: Start difference. First operand has 37 places, 20 transitions, 70 flow. Second operand 3 states and 302 transitions. [2023-08-25 01:49:14,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 34 transitions, 180 flow [2023-08-25 01:49:14,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 163 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 01:49:14,330 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 91 flow [2023-08-25 01:49:14,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2023-08-25 01:49:14,332 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -25 predicate places. [2023-08-25 01:49:14,335 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 91 flow [2023-08-25 01:49:14,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:14,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:14,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 01:49:14,336 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:14,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:14,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1298764474, now seen corresponding path program 1 times [2023-08-25 01:49:14,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:14,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925136514] [2023-08-25 01:49:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:14,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:14,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:14,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925136514] [2023-08-25 01:49:14,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925136514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:14,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:14,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 01:49:14,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128126598] [2023-08-25 01:49:14,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:14,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:49:14,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:14,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:49:14,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:49:14,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 249 [2023-08-25 01:49:14,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:14,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 249 [2023-08-25 01:49:14,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:14,556 INFO L124 PetriNetUnfolderBase]: 230/391 cut-off events. [2023-08-25 01:49:14,556 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2023-08-25 01:49:14,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 391 events. 230/391 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1323 event pairs, 36 based on Foata normal form. 32/423 useless extension candidates. Maximal degree in co-relation 1173. Up to 248 conditions per place. [2023-08-25 01:49:14,559 INFO L140 encePairwiseOnDemand]: 243/249 looper letters, 37 selfloop transitions, 9 changer transitions 0/46 dead transitions. [2023-08-25 01:49:14,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 251 flow [2023-08-25 01:49:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:49:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:49:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 403 transitions. [2023-08-25 01:49:14,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4046184738955823 [2023-08-25 01:49:14,561 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 403 transitions. [2023-08-25 01:49:14,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 403 transitions. [2023-08-25 01:49:14,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:14,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 403 transitions. [2023-08-25 01:49:14,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,564 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,564 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 91 flow. Second operand 4 states and 403 transitions. [2023-08-25 01:49:14,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 251 flow [2023-08-25 01:49:14,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 01:49:14,567 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 138 flow [2023-08-25 01:49:14,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-08-25 01:49:14,568 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -22 predicate places. [2023-08-25 01:49:14,569 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 138 flow [2023-08-25 01:49:14,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:14,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:14,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 01:49:14,569 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:14,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:14,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1606954249, now seen corresponding path program 1 times [2023-08-25 01:49:14,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:14,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013696266] [2023-08-25 01:49:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:14,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:14,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:14,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013696266] [2023-08-25 01:49:14,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013696266] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:14,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:14,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 01:49:14,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405830316] [2023-08-25 01:49:14,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:14,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 01:49:14,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:14,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 01:49:14,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 01:49:14,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 249 [2023-08-25 01:49:14,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:14,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 249 [2023-08-25 01:49:14,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:14,795 INFO L124 PetriNetUnfolderBase]: 158/282 cut-off events. [2023-08-25 01:49:14,795 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2023-08-25 01:49:14,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 282 events. 158/282 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 898 event pairs, 19 based on Foata normal form. 24/306 useless extension candidates. Maximal degree in co-relation 1001. Up to 140 conditions per place. [2023-08-25 01:49:14,797 INFO L140 encePairwiseOnDemand]: 243/249 looper letters, 41 selfloop transitions, 13 changer transitions 0/54 dead transitions. [2023-08-25 01:49:14,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 333 flow [2023-08-25 01:49:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 01:49:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 01:49:14,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 500 transitions. [2023-08-25 01:49:14,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40160642570281124 [2023-08-25 01:49:14,800 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 500 transitions. [2023-08-25 01:49:14,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 500 transitions. [2023-08-25 01:49:14,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:14,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 500 transitions. [2023-08-25 01:49:14,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 249.0) internal successors, (1494), 6 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,804 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 249.0) internal successors, (1494), 6 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,804 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 138 flow. Second operand 5 states and 500 transitions. [2023-08-25 01:49:14,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 333 flow [2023-08-25 01:49:14,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 54 transitions, 315 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 01:49:14,806 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 188 flow [2023-08-25 01:49:14,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-08-25 01:49:14,807 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -19 predicate places. [2023-08-25 01:49:14,807 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 188 flow [2023-08-25 01:49:14,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:14,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:14,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 01:49:14,808 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:14,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:14,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1931203621, now seen corresponding path program 1 times [2023-08-25 01:49:14,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:14,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92428224] [2023-08-25 01:49:14,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:14,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:14,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:14,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:14,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92428224] [2023-08-25 01:49:14,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92428224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:14,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:14,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 01:49:14,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520857706] [2023-08-25 01:49:14,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:14,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 01:49:14,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:14,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 01:49:14,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 01:49:14,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 249 [2023-08-25 01:49:14,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 92.0) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:14,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:14,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 249 [2023-08-25 01:49:14,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:15,028 INFO L124 PetriNetUnfolderBase]: 144/254 cut-off events. [2023-08-25 01:49:15,028 INFO L125 PetriNetUnfolderBase]: For 314/314 co-relation queries the response was YES. [2023-08-25 01:49:15,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 254 events. 144/254 cut-off events. For 314/314 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 799 event pairs, 17 based on Foata normal form. 8/262 useless extension candidates. Maximal degree in co-relation 942. Up to 96 conditions per place. [2023-08-25 01:49:15,030 INFO L140 encePairwiseOnDemand]: 243/249 looper letters, 37 selfloop transitions, 17 changer transitions 0/54 dead transitions. [2023-08-25 01:49:15,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 359 flow [2023-08-25 01:49:15,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 01:49:15,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 01:49:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 589 transitions. [2023-08-25 01:49:15,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39424364123159306 [2023-08-25 01:49:15,033 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 589 transitions. [2023-08-25 01:49:15,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 589 transitions. [2023-08-25 01:49:15,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:15,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 589 transitions. [2023-08-25 01:49:15,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 249.0) internal successors, (1743), 7 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,037 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 249.0) internal successors, (1743), 7 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,037 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 188 flow. Second operand 6 states and 589 transitions. [2023-08-25 01:49:15,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 359 flow [2023-08-25 01:49:15,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 311 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-25 01:49:15,040 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 190 flow [2023-08-25 01:49:15,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-08-25 01:49:15,041 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -18 predicate places. [2023-08-25 01:49:15,041 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 190 flow [2023-08-25 01:49:15,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.0) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:15,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:15,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 01:49:15,042 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:15,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:15,042 INFO L85 PathProgramCache]: Analyzing trace with hash 714949155, now seen corresponding path program 1 times [2023-08-25 01:49:15,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:15,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827550456] [2023-08-25 01:49:15,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:15,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:15,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:15,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827550456] [2023-08-25 01:49:15,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827550456] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:15,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:15,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 01:49:15,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699786352] [2023-08-25 01:49:15,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:15,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:49:15,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:15,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:49:15,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:49:15,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 249 [2023-08-25 01:49:15,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:15,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 249 [2023-08-25 01:49:15,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:15,171 INFO L124 PetriNetUnfolderBase]: 184/327 cut-off events. [2023-08-25 01:49:15,171 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2023-08-25 01:49:15,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1229 conditions, 327 events. 184/327 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1145 event pairs, 24 based on Foata normal form. 1/328 useless extension candidates. Maximal degree in co-relation 1221. Up to 219 conditions per place. [2023-08-25 01:49:15,173 INFO L140 encePairwiseOnDemand]: 246/249 looper letters, 35 selfloop transitions, 1 changer transitions 26/62 dead transitions. [2023-08-25 01:49:15,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 62 transitions, 516 flow [2023-08-25 01:49:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:49:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:49:15,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 389 transitions. [2023-08-25 01:49:15,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39056224899598396 [2023-08-25 01:49:15,175 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 389 transitions. [2023-08-25 01:49:15,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 389 transitions. [2023-08-25 01:49:15,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:15,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 389 transitions. [2023-08-25 01:49:15,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,178 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,178 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 190 flow. Second operand 4 states and 389 transitions. [2023-08-25 01:49:15,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 62 transitions, 516 flow [2023-08-25 01:49:15,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 410 flow, removed 24 selfloop flow, removed 4 redundant places. [2023-08-25 01:49:15,182 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 147 flow [2023-08-25 01:49:15,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=147, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2023-08-25 01:49:15,183 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2023-08-25 01:49:15,183 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 147 flow [2023-08-25 01:49:15,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 01:49:15,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:15,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 01:49:15,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 01:49:15,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 01:49:15,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1320196115, now seen corresponding path program 2 times [2023-08-25 01:49:15,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 01:49:15,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725474113] [2023-08-25 01:49:15,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 01:49:15,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 01:49:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 01:49:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 01:49:15,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 01:49:15,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725474113] [2023-08-25 01:49:15,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725474113] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 01:49:15,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 01:49:15,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 01:49:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734771525] [2023-08-25 01:49:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 01:49:15,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 01:49:15,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 01:49:15,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 01:49:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 01:49:15,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 249 [2023-08-25 01:49:15,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 01:49:15,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 249 [2023-08-25 01:49:15,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 01:49:15,294 INFO L124 PetriNetUnfolderBase]: 144/269 cut-off events. [2023-08-25 01:49:15,294 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2023-08-25 01:49:15,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 269 events. 144/269 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 886 event pairs, 46 based on Foata normal form. 1/270 useless extension candidates. Maximal degree in co-relation 895. Up to 123 conditions per place. [2023-08-25 01:49:15,295 INFO L140 encePairwiseOnDemand]: 246/249 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2023-08-25 01:49:15,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 51 transitions, 354 flow [2023-08-25 01:49:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 01:49:15,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 01:49:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 382 transitions. [2023-08-25 01:49:15,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38353413654618473 [2023-08-25 01:49:15,297 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 382 transitions. [2023-08-25 01:49:15,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 382 transitions. [2023-08-25 01:49:15,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 01:49:15,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 382 transitions. [2023-08-25 01:49:15,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,300 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,301 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 147 flow. Second operand 4 states and 382 transitions. [2023-08-25 01:49:15,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 51 transitions, 354 flow [2023-08-25 01:49:15,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 51 transitions, 352 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 01:49:15,303 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-08-25 01:49:15,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-08-25 01:49:15,304 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2023-08-25 01:49:15,304 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-08-25 01:49:15,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 01:49:15,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2023-08-25 01:49:15,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err2ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2023-08-25 01:49:15,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (22 of 50 remaining) [2023-08-25 01:49:15,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err5ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2023-08-25 01:49:15,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2023-08-25 01:49:15,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2023-08-25 01:49:15,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err2ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2023-08-25 01:49:15,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 01:49:15,312 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 01:49:15,316 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 01:49:15,316 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 01:49:15,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 01:49:15 BasicIcfg [2023-08-25 01:49:15,319 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 01:49:15,320 INFO L158 Benchmark]: Toolchain (without parser) took 9329.19ms. Allocated memory was 358.6MB in the beginning and 520.1MB in the end (delta: 161.5MB). Free memory was 333.1MB in the beginning and 322.4MB in the end (delta: 10.7MB). Peak memory consumption was 172.7MB. Max. memory is 16.0GB. [2023-08-25 01:49:15,320 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 358.6MB. Free memory is still 334.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 01:49:15,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.48ms. Allocated memory is still 358.6MB. Free memory was 333.1MB in the beginning and 312.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 01:49:15,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.86ms. Allocated memory is still 358.6MB. Free memory was 312.1MB in the beginning and 310.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 01:49:15,320 INFO L158 Benchmark]: Boogie Preprocessor took 22.64ms. Allocated memory is still 358.6MB. Free memory was 310.0MB in the beginning and 307.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 01:49:15,321 INFO L158 Benchmark]: RCFGBuilder took 727.98ms. Allocated memory is still 358.6MB. Free memory was 307.9MB in the beginning and 322.5MB in the end (delta: -14.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 01:49:15,321 INFO L158 Benchmark]: TraceAbstraction took 8001.58ms. Allocated memory was 358.6MB in the beginning and 520.1MB in the end (delta: 161.5MB). Free memory was 321.5MB in the beginning and 322.4MB in the end (delta: -883.2kB). Peak memory consumption was 162.7MB. Max. memory is 16.0GB. [2023-08-25 01:49:15,322 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 358.6MB. Free memory is still 334.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 518.48ms. Allocated memory is still 358.6MB. Free memory was 333.1MB in the beginning and 312.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.86ms. Allocated memory is still 358.6MB. Free memory was 312.1MB in the beginning and 310.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.64ms. Allocated memory is still 358.6MB. Free memory was 310.0MB in the beginning and 307.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 727.98ms. Allocated memory is still 358.6MB. Free memory was 307.9MB in the beginning and 322.5MB in the end (delta: -14.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 8001.58ms. Allocated memory was 358.6MB in the beginning and 520.1MB in the end (delta: 161.5MB). Free memory was 321.5MB in the beginning and 322.4MB in the end (delta: -883.2kB). Peak memory consumption was 162.7MB. 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: 4.8s, 141 PlacesBefore, 61 PlacesAfterwards, 131 TransitionsBefore, 49 TransitionsAfterwards, 5840 CoEnabledTransitionPairs, 7 FixpointIterations, 21 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 114 TotalNumberOfCompositions, 17863 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7401, independent: 7098, independent conditional: 0, independent unconditional: 7098, dependent: 303, dependent conditional: 0, dependent unconditional: 303, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3014, independent: 2956, independent conditional: 0, independent unconditional: 2956, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7401, independent: 4142, independent conditional: 0, independent unconditional: 4142, dependent: 245, dependent conditional: 0, dependent unconditional: 245, unknown: 3014, unknown conditional: 0, unknown unconditional: 3014] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 275, Positive conditional cache size: 0, Positive unconditional cache size: 275, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: 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: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 770]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 775]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 775]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 799]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 799]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 801]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 805]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 805]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 805]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 805]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 805]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 807]: 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 9 procedures, 181 locations, 50 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: 7.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 183 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 530 IncrementalHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 0 mSDtfsCounter, 530 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=9, 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, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 28 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 01:49:15,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...