/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 15:56:08,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 15:56:08,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 15:56:08,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 15:56:08,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 15:56:08,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 15:56:08,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 15:56:08,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 15:56:08,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 15:56:08,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 15:56:08,489 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 15:56:08,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 15:56:08,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 15:56:08,490 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 15:56:08,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 15:56:08,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 15:56:08,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 15:56:08,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 15:56:08,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 15:56:08,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 15:56:08,491 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 15:56:08,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 15:56:08,491 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 15:56:08,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 15:56:08,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 15:56:08,492 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 15:56:08,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 15:56:08,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:56:08,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 15:56:08,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 15:56:08,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 15:56:08,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 15:56:08,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 15:56:08,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 15:56:08,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 15:56:08,494 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 15:56:08,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 15:56:08,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 15:56:08,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 15:56:08,765 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 15:56:08,765 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 15:56:08,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 15:56:09,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 15:56:09,922 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 15:56:09,922 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 15:56:09,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62cc69572/d50d3f263e4f4b568d4404126d443218/FLAG686bd99af [2023-08-25 15:56:09,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62cc69572/d50d3f263e4f4b568d4404126d443218 [2023-08-25 15:56:09,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 15:56:09,959 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 15:56:09,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 15:56:09,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 15:56:09,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 15:56:09,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:56:09" (1/1) ... [2023-08-25 15:56:09,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b2dd55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:09, skipping insertion in model container [2023-08-25 15:56:09,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:56:09" (1/1) ... [2023-08-25 15:56:10,002 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 15:56:10,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:56:10,290 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 15:56:10,319 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:56:10,320 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:56:10,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:56:10,356 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:56:10,356 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:56:10,361 INFO L206 MainTranslator]: Completed translation [2023-08-25 15:56:10,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10 WrapperNode [2023-08-25 15:56:10,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 15:56:10,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 15:56:10,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 15:56:10,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 15:56:10,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,409 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 102 [2023-08-25 15:56:10,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 15:56:10,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 15:56:10,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 15:56:10,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 15:56:10,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 15:56:10,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 15:56:10,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 15:56:10,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 15:56:10,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (1/1) ... [2023-08-25 15:56:10,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:56:10,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 15:56:10,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 15:56:10,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 15:56:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 15:56:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 15:56:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 15:56:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 15:56:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 15:56:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 15:56:10,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 15:56:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 15:56:10,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 15:56:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 15:56:10,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 15:56:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 15:56:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 15:56:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 15:56:10,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 15:56:10,497 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 15:56:10,587 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 15:56:10,588 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 15:56:10,728 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 15:56:10,793 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 15:56:10,793 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 15:56:10,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:56:10 BoogieIcfgContainer [2023-08-25 15:56:10,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 15:56:10,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 15:56:10,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 15:56:10,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 15:56:10,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:56:09" (1/3) ... [2023-08-25 15:56:10,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d71ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:56:10, skipping insertion in model container [2023-08-25 15:56:10,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:10" (2/3) ... [2023-08-25 15:56:10,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d71ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:56:10, skipping insertion in model container [2023-08-25 15:56:10,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:56:10" (3/3) ... [2023-08-25 15:56:10,800 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 15:56:10,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 15:56:10,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2023-08-25 15:56:10,811 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 15:56:10,840 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 15:56:10,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 243 flow [2023-08-25 15:56:10,889 INFO L124 PetriNetUnfolderBase]: 3/111 cut-off events. [2023-08-25 15:56:10,889 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:56:10,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 111 events. 3/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 130 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-25 15:56:10,893 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 114 transitions, 243 flow [2023-08-25 15:56:10,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 111 transitions, 231 flow [2023-08-25 15:56:10,898 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 15:56:10,904 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 111 transitions, 231 flow [2023-08-25 15:56:10,906 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 111 transitions, 231 flow [2023-08-25 15:56:10,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 111 transitions, 231 flow [2023-08-25 15:56:10,923 INFO L124 PetriNetUnfolderBase]: 3/111 cut-off events. [2023-08-25 15:56:10,923 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:56:10,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 111 events. 3/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 127 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-25 15:56:10,925 INFO L119 LiptonReduction]: Number of co-enabled transitions 3780 [2023-08-25 15:56:13,706 INFO L134 LiptonReduction]: Checked pairs total: 12682 [2023-08-25 15:56:13,706 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-25 15:56:13,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 15:56:13,718 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;@2048ce6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 15:56:13,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-25 15:56:13,720 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 15:56:13,720 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-25 15:56:13,720 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:56:13,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:56:13,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 15:56:13,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 15:56:13,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:56:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash 571757, now seen corresponding path program 1 times [2023-08-25 15:56:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:56:13,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109241239] [2023-08-25 15:56:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:56:13,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:56:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:56:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:56:13,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:56:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109241239] [2023-08-25 15:56:13,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109241239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:56:13,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:56:13,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:56:13,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62900525] [2023-08-25 15:56:13,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:56:13,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 15:56:13,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:56:13,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 15:56:13,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 15:56:13,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 224 [2023-08-25 15:56:13,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:13,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:56:13,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 224 [2023-08-25 15:56:13,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:56:13,947 INFO L124 PetriNetUnfolderBase]: 409/634 cut-off events. [2023-08-25 15:56:13,948 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 15:56:13,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 634 events. 409/634 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2232 event pairs, 409 based on Foata normal form. 0/586 useless extension candidates. Maximal degree in co-relation 1296. Up to 635 conditions per place. [2023-08-25 15:56:13,952 INFO L140 encePairwiseOnDemand]: 201/224 looper letters, 16 selfloop transitions, 0 changer transitions 1/17 dead transitions. [2023-08-25 15:56:13,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 77 flow [2023-08-25 15:56:13,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 15:56:13,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 15:56:13,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 194 transitions. [2023-08-25 15:56:13,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4330357142857143 [2023-08-25 15:56:13,960 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 194 transitions. [2023-08-25 15:56:13,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 194 transitions. [2023-08-25 15:56:13,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:56:13,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 194 transitions. [2023-08-25 15:56:13,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 97.0) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:13,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:13,967 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:13,968 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 89 flow. Second operand 2 states and 194 transitions. [2023-08-25 15:56:13,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 77 flow [2023-08-25 15:56:13,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 74 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 15:56:13,971 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 38 flow [2023-08-25 15:56:13,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-25 15:56:13,974 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -24 predicate places. [2023-08-25 15:56:13,974 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 38 flow [2023-08-25 15:56:13,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:13,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:56:13,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:56:13,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 15:56:13,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 15:56:13,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:56:13,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1949362520, now seen corresponding path program 1 times [2023-08-25 15:56:13,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:56:13,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368604152] [2023-08-25 15:56:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:56:13,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:56:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:56:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:56:14,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:56:14,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368604152] [2023-08-25 15:56:14,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368604152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:56:14,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:56:14,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:56:14,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045871741] [2023-08-25 15:56:14,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:56:14,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:56:14,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:56:14,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:56:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:56:14,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 224 [2023-08-25 15:56:14,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:56:14,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 224 [2023-08-25 15:56:14,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:56:14,128 INFO L124 PetriNetUnfolderBase]: 276/441 cut-off events. [2023-08-25 15:56:14,129 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:56:14,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 441 events. 276/441 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1442 event pairs, 87 based on Foata normal form. 12/453 useless extension candidates. Maximal degree in co-relation 916. Up to 322 conditions per place. [2023-08-25 15:56:14,131 INFO L140 encePairwiseOnDemand]: 221/224 looper letters, 20 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2023-08-25 15:56:14,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 94 flow [2023-08-25 15:56:14,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:56:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:56:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-25 15:56:14,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37351190476190477 [2023-08-25 15:56:14,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-25 15:56:14,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-25 15:56:14,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:56:14,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-25 15:56:14,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,136 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 38 flow. Second operand 3 states and 251 transitions. [2023-08-25 15:56:14,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 94 flow [2023-08-25 15:56:14,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 94 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 15:56:14,136 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 46 flow [2023-08-25 15:56:14,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2023-08-25 15:56:14,137 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -22 predicate places. [2023-08-25 15:56:14,137 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 46 flow [2023-08-25 15:56:14,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:56:14,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:56:14,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 15:56:14,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 15:56:14,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:56:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash -300696846, now seen corresponding path program 1 times [2023-08-25 15:56:14,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:56:14,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769403818] [2023-08-25 15:56:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:56:14,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:56:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:56:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:56:14,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:56:14,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769403818] [2023-08-25 15:56:14,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769403818] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:56:14,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:56:14,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:56:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676512316] [2023-08-25 15:56:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:56:14,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:56:14,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:56:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:56:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:56:14,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 224 [2023-08-25 15:56:14,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:56:14,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 224 [2023-08-25 15:56:14,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:56:14,274 INFO L124 PetriNetUnfolderBase]: 315/516 cut-off events. [2023-08-25 15:56:14,274 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-08-25 15:56:14,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 516 events. 315/516 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1961 event pairs, 61 based on Foata normal form. 36/552 useless extension candidates. Maximal degree in co-relation 1139. Up to 220 conditions per place. [2023-08-25 15:56:14,276 INFO L140 encePairwiseOnDemand]: 220/224 looper letters, 24 selfloop transitions, 3 changer transitions 5/32 dead transitions. [2023-08-25 15:56:14,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 147 flow [2023-08-25 15:56:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:56:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:56:14,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-08-25 15:56:14,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37276785714285715 [2023-08-25 15:56:14,278 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-08-25 15:56:14,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-08-25 15:56:14,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:56:14,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-08-25 15:56:14,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,284 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,285 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 46 flow. Second operand 4 states and 334 transitions. [2023-08-25 15:56:14,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 147 flow [2023-08-25 15:56:14,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 32 transitions, 141 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 15:56:14,286 INFO L231 Difference]: Finished difference. Result has 30 places, 16 transitions, 56 flow [2023-08-25 15:56:14,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=30, PETRI_TRANSITIONS=16} [2023-08-25 15:56:14,288 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -19 predicate places. [2023-08-25 15:56:14,290 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 56 flow [2023-08-25 15:56:14,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:56:14,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:56:14,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 15:56:14,294 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 15:56:14,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:56:14,294 INFO L85 PathProgramCache]: Analyzing trace with hash -731712710, now seen corresponding path program 1 times [2023-08-25 15:56:14,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:56:14,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954615541] [2023-08-25 15:56:14,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:56:14,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:56:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:56:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:56:14,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:56:14,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954615541] [2023-08-25 15:56:14,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954615541] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:56:14,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:56:14,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:56:14,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827825859] [2023-08-25 15:56:14,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:56:14,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:56:14,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:56:14,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:56:14,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:56:14,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 224 [2023-08-25 15:56:14,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:56:14,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 224 [2023-08-25 15:56:14,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:56:14,494 INFO L124 PetriNetUnfolderBase]: 142/253 cut-off events. [2023-08-25 15:56:14,494 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-25 15:56:14,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 253 events. 142/253 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 794 event pairs, 42 based on Foata normal form. 12/265 useless extension candidates. Maximal degree in co-relation 660. Up to 199 conditions per place. [2023-08-25 15:56:14,495 INFO L140 encePairwiseOnDemand]: 219/224 looper letters, 24 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2023-08-25 15:56:14,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 148 flow [2023-08-25 15:56:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:56:14,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:56:14,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-25 15:56:14,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38244047619047616 [2023-08-25 15:56:14,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-25 15:56:14,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-25 15:56:14,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:56:14,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-25 15:56:14,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,499 INFO L175 Difference]: Start difference. First operand has 30 places, 16 transitions, 56 flow. Second operand 3 states and 257 transitions. [2023-08-25 15:56:14,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 148 flow [2023-08-25 15:56:14,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 131 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 15:56:14,501 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 70 flow [2023-08-25 15:56:14,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2023-08-25 15:56:14,502 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -20 predicate places. [2023-08-25 15:56:14,502 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 70 flow [2023-08-25 15:56:14,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:56:14,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:56:14,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 15:56:14,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 15:56:14,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:56:14,503 INFO L85 PathProgramCache]: Analyzing trace with hash -948293392, now seen corresponding path program 1 times [2023-08-25 15:56:14,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:56:14,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73740482] [2023-08-25 15:56:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:56:14,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:56:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:56:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:56:14,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:56:14,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73740482] [2023-08-25 15:56:14,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73740482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:56:14,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:56:14,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:56:14,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243408136] [2023-08-25 15:56:14,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:56:14,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:56:14,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:56:14,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:56:14,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:56:14,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 224 [2023-08-25 15:56:14,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:56:14,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 224 [2023-08-25 15:56:14,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:56:14,630 INFO L124 PetriNetUnfolderBase]: 89/173 cut-off events. [2023-08-25 15:56:14,630 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-08-25 15:56:14,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 173 events. 89/173 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 495 event pairs, 26 based on Foata normal form. 16/189 useless extension candidates. Maximal degree in co-relation 500. Up to 64 conditions per place. [2023-08-25 15:56:14,631 INFO L140 encePairwiseOnDemand]: 219/224 looper letters, 30 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2023-08-25 15:56:14,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 37 transitions, 197 flow [2023-08-25 15:56:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:56:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:56:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-08-25 15:56:14,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38169642857142855 [2023-08-25 15:56:14,632 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-08-25 15:56:14,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-08-25 15:56:14,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:56:14,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-08-25 15:56:14,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,635 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,635 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 70 flow. Second operand 4 states and 342 transitions. [2023-08-25 15:56:14,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 37 transitions, 197 flow [2023-08-25 15:56:14,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 15:56:14,636 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 106 flow [2023-08-25 15:56:14,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-08-25 15:56:14,637 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -17 predicate places. [2023-08-25 15:56:14,637 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 106 flow [2023-08-25 15:56:14,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:56:14,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:56:14,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 15:56:14,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 15:56:14,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:56:14,638 INFO L85 PathProgramCache]: Analyzing trace with hash -848799273, now seen corresponding path program 1 times [2023-08-25 15:56:14,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:56:14,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405299080] [2023-08-25 15:56:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:56:14,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:56:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:56:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:56:14,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:56:14,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405299080] [2023-08-25 15:56:14,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405299080] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:56:14,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:56:14,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 15:56:14,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588244521] [2023-08-25 15:56:14,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:56:14,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 15:56:14,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:56:14,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 15:56:14,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 15:56:14,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 224 [2023-08-25 15:56:14,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:56:14,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 224 [2023-08-25 15:56:14,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:56:14,757 INFO L124 PetriNetUnfolderBase]: 76/147 cut-off events. [2023-08-25 15:56:14,757 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-08-25 15:56:14,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 147 events. 76/147 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 408 event pairs, 24 based on Foata normal form. 7/154 useless extension candidates. Maximal degree in co-relation 469. Up to 63 conditions per place. [2023-08-25 15:56:14,758 INFO L140 encePairwiseOnDemand]: 219/224 looper letters, 27 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2023-08-25 15:56:14,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 221 flow [2023-08-25 15:56:14,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 15:56:14,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 15:56:14,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 418 transitions. [2023-08-25 15:56:14,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3732142857142857 [2023-08-25 15:56:14,760 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 418 transitions. [2023-08-25 15:56:14,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 418 transitions. [2023-08-25 15:56:14,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:56:14,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 418 transitions. [2023-08-25 15:56:14,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,763 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,763 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 106 flow. Second operand 5 states and 418 transitions. [2023-08-25 15:56:14,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 221 flow [2023-08-25 15:56:14,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 201 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-25 15:56:14,764 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 116 flow [2023-08-25 15:56:14,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2023-08-25 15:56:14,765 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -15 predicate places. [2023-08-25 15:56:14,765 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 116 flow [2023-08-25 15:56:14,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:56:14,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:56:14,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 15:56:14,766 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 15:56:14,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:56:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash 396169276, now seen corresponding path program 1 times [2023-08-25 15:56:14,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:56:14,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888613941] [2023-08-25 15:56:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:56:14,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:56:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:56:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:56:14,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:56:14,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888613941] [2023-08-25 15:56:14,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888613941] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:56:14,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:56:14,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:56:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958399397] [2023-08-25 15:56:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:56:14,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:56:14,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:56:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:56:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:56:14,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 224 [2023-08-25 15:56:14,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:56:14,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 224 [2023-08-25 15:56:14,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:56:14,869 INFO L124 PetriNetUnfolderBase]: 84/168 cut-off events. [2023-08-25 15:56:14,869 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2023-08-25 15:56:14,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 168 events. 84/168 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 557 event pairs, 6 based on Foata normal form. 1/169 useless extension candidates. Maximal degree in co-relation 565. Up to 116 conditions per place. [2023-08-25 15:56:14,870 INFO L140 encePairwiseOnDemand]: 221/224 looper letters, 25 selfloop transitions, 1 changer transitions 18/44 dead transitions. [2023-08-25 15:56:14,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 336 flow [2023-08-25 15:56:14,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:56:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:56:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-08-25 15:56:14,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36941964285714285 [2023-08-25 15:56:14,871 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-08-25 15:56:14,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-08-25 15:56:14,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:56:14,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-08-25 15:56:14,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,875 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,875 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 116 flow. Second operand 4 states and 331 transitions. [2023-08-25 15:56:14,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 336 flow [2023-08-25 15:56:14,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 280 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 15:56:14,880 INFO L231 Difference]: Finished difference. Result has 36 places, 22 transitions, 97 flow [2023-08-25 15:56:14,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2023-08-25 15:56:14,881 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -13 predicate places. [2023-08-25 15:56:14,881 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 97 flow [2023-08-25 15:56:14,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:56:14,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:56:14,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 15:56:14,886 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 15:56:14,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:56:14,886 INFO L85 PathProgramCache]: Analyzing trace with hash 646185776, now seen corresponding path program 2 times [2023-08-25 15:56:14,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:56:14,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775731568] [2023-08-25 15:56:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:56:14,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:56:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:56:14,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:56:14,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:56:14,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775731568] [2023-08-25 15:56:14,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775731568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:56:14,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:56:14,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:56:14,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497960822] [2023-08-25 15:56:14,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:56:14,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:56:14,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:56:14,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:56:14,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:56:14,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 224 [2023-08-25 15:56:14,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:56:14,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 224 [2023-08-25 15:56:14,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:56:14,967 INFO L124 PetriNetUnfolderBase]: 82/168 cut-off events. [2023-08-25 15:56:14,968 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2023-08-25 15:56:14,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 168 events. 82/168 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 534 event pairs, 20 based on Foata normal form. 1/169 useless extension candidates. Maximal degree in co-relation 540. Up to 82 conditions per place. [2023-08-25 15:56:14,968 INFO L140 encePairwiseOnDemand]: 221/224 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2023-08-25 15:56:14,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 227 flow [2023-08-25 15:56:14,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:56:14,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:56:14,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 327 transitions. [2023-08-25 15:56:14,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36495535714285715 [2023-08-25 15:56:14,969 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 327 transitions. [2023-08-25 15:56:14,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 327 transitions. [2023-08-25 15:56:14,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:56:14,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 327 transitions. [2023-08-25 15:56:14,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,971 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,971 INFO L175 Difference]: Start difference. First operand has 36 places, 22 transitions, 97 flow. Second operand 4 states and 327 transitions. [2023-08-25 15:56:14,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 227 flow [2023-08-25 15:56:14,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 15:56:14,973 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-25 15:56:14,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, 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=4, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-25 15:56:14,974 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -13 predicate places. [2023-08-25 15:56:14,975 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-25 15:56:14,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:56:14,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-08-25 15:56:14,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-08-25 15:56:14,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-08-25 15:56:14,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-08-25 15:56:14,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-08-25 15:56:14,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-08-25 15:56:14,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-08-25 15:56:14,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-08-25 15:56:14,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-08-25 15:56:14,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-08-25 15:56:14,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-08-25 15:56:14,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-08-25 15:56:14,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-08-25 15:56:14,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-08-25 15:56:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-08-25 15:56:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-08-25 15:56:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-08-25 15:56:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (17 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 40 remaining) [2023-08-25 15:56:14,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-08-25 15:56:14,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-08-25 15:56:14,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-08-25 15:56:14,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-08-25 15:56:14,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-08-25 15:56:14,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-08-25 15:56:14,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 15:56:14,986 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-08-25 15:56:14,995 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 15:56:14,995 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 15:56:14,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:56:14 BasicIcfg [2023-08-25 15:56:14,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 15:56:14,997 INFO L158 Benchmark]: Toolchain (without parser) took 5038.13ms. Allocated memory was 369.1MB in the beginning and 597.7MB in the end (delta: 228.6MB). Free memory was 343.9MB in the beginning and 314.5MB in the end (delta: 29.4MB). Peak memory consumption was 259.2MB. Max. memory is 16.0GB. [2023-08-25 15:56:14,997 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 369.1MB. Free memory is still 347.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 15:56:14,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.01ms. Allocated memory is still 369.1MB. Free memory was 343.3MB in the beginning and 322.9MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 15:56:14,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.07ms. Allocated memory is still 369.1MB. Free memory was 322.9MB in the beginning and 320.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 15:56:14,998 INFO L158 Benchmark]: Boogie Preprocessor took 19.28ms. Allocated memory is still 369.1MB. Free memory was 320.9MB in the beginning and 319.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 15:56:14,999 INFO L158 Benchmark]: RCFGBuilder took 364.88ms. Allocated memory is still 369.1MB. Free memory was 319.4MB in the beginning and 290.6MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 15:56:14,999 INFO L158 Benchmark]: TraceAbstraction took 4200.64ms. Allocated memory was 369.1MB in the beginning and 597.7MB in the end (delta: 228.6MB). Free memory was 290.0MB in the beginning and 314.5MB in the end (delta: -24.5MB). Peak memory consumption was 204.6MB. Max. memory is 16.0GB. [2023-08-25 15:56:15,000 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 369.1MB. Free memory is still 347.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 400.01ms. Allocated memory is still 369.1MB. Free memory was 343.3MB in the beginning and 322.9MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.07ms. Allocated memory is still 369.1MB. Free memory was 322.9MB in the beginning and 320.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.28ms. Allocated memory is still 369.1MB. Free memory was 320.9MB in the beginning and 319.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 364.88ms. Allocated memory is still 369.1MB. Free memory was 319.4MB in the beginning and 290.6MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * TraceAbstraction took 4200.64ms. Allocated memory was 369.1MB in the beginning and 597.7MB in the end (delta: 228.6MB). Free memory was 290.0MB in the beginning and 314.5MB in the end (delta: -24.5MB). Peak memory consumption was 204.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 118 PlacesBefore, 49 PlacesAfterwards, 111 TransitionsBefore, 40 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 110 TotalNumberOfCompositions, 12682 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5874, independent: 5624, independent conditional: 0, independent unconditional: 5624, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2170, independent: 2120, independent conditional: 0, independent unconditional: 2120, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5874, independent: 3504, independent conditional: 0, independent unconditional: 3504, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 2170, unknown conditional: 0, unknown unconditional: 2170] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 197, Positive conditional cache size: 0, Positive unconditional cache size: 197, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 754]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 754]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 762]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 762]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 786]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 792]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 149 locations, 40 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: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=6, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 23 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 15:56:15,013 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...