/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/increased_bounds/pthread_triangular-longer-1_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-04 07:58:18,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-04 07:58:18,628 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-04 07:58:18,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-04 07:58:18,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-04 07:58:18,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-04 07:58:18,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-04 07:58:18,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-04 07:58:18,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-04 07:58:18,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-04 07:58:18,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-04 07:58:18,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-04 07:58:18,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-04 07:58:18,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-04 07:58:18,674 INFO L153 SettingsManager]: * Use SBE=true [2023-08-04 07:58:18,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-04 07:58:18,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-04 07:58:18,675 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-04 07:58:18,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-04 07:58:18,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-04 07:58:18,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-04 07:58:18,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-04 07:58:18,676 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-04 07:58:18,676 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-04 07:58:18,676 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-04 07:58:18,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-04 07:58:18,677 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-04 07:58:18,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-04 07:58:18,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-04 07:58:18,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-04 07:58:18,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 07:58:18,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-04 07:58:18,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-04 07:58:18,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-04 07:58:18,679 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-04 07:58:18,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-04 07:58:18,679 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-04 07:58:18,679 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-04 07:58:18,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-04 07:58:18,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-04 07:58:18,680 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-04 07:58:18,680 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-04 07:58:18,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-04 07:58:18,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-04 07:58:18,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-04 07:58:18,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-04 07:58:18,920 INFO L274 PluginConnector]: CDTParser initialized [2023-08-04 07:58:18,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread_triangular-longer-1_bound2.i [2023-08-04 07:58:20,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-04 07:58:20,218 INFO L384 CDTParser]: Found 1 translation units. [2023-08-04 07:58:20,219 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread_triangular-longer-1_bound2.i [2023-08-04 07:58:20,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bc3b347d/a92f3ed6e5304a48a1d11815046f3a73/FLAG6bd1ed9ea [2023-08-04 07:58:20,243 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bc3b347d/a92f3ed6e5304a48a1d11815046f3a73 [2023-08-04 07:58:20,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-04 07:58:20,247 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-04 07:58:20,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-04 07:58:20,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-04 07:58:20,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-04 07:58:20,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8b2793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20, skipping insertion in model container [2023-08-04 07:58:20,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,291 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-04 07:58:20,515 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread_triangular-longer-1_bound2.i[31045,31058] [2023-08-04 07:58:20,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 07:58:20,524 INFO L201 MainTranslator]: Completed pre-run [2023-08-04 07:58:20,553 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-04 07:58:20,561 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-04 07:58:20,588 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread_triangular-longer-1_bound2.i[31045,31058] [2023-08-04 07:58:20,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 07:58:20,620 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-04 07:58:20,620 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-04 07:58:20,626 INFO L206 MainTranslator]: Completed translation [2023-08-04 07:58:20,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20 WrapperNode [2023-08-04 07:58:20,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-04 07:58:20,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-04 07:58:20,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-04 07:58:20,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-04 07:58:20,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,685 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-08-04 07:58:20,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-04 07:58:20,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-04 07:58:20,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-04 07:58:20,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-04 07:58:20,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-04 07:58:20,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-04 07:58:20,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-04 07:58:20,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-04 07:58:20,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (1/1) ... [2023-08-04 07:58:20,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 07:58:20,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:20,759 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) [2023-08-04 07:58:20,767 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 [2023-08-04 07:58:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-04 07:58:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-04 07:58:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-04 07:58:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-04 07:58:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-04 07:58:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-04 07:58:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-04 07:58:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-04 07:58:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-04 07:58:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-04 07:58:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-04 07:58:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-04 07:58:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-04 07:58:20,797 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-04 07:58:20,899 INFO L236 CfgBuilder]: Building ICFG [2023-08-04 07:58:20,902 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-04 07:58:21,113 INFO L277 CfgBuilder]: Performing block encoding [2023-08-04 07:58:21,119 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-04 07:58:21,119 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-04 07:58:21,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 07:58:21 BoogieIcfgContainer [2023-08-04 07:58:21,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-04 07:58:21,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-04 07:58:21,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-04 07:58:21,130 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-04 07:58:21,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.08 07:58:20" (1/3) ... [2023-08-04 07:58:21,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f0726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 07:58:21, skipping insertion in model container [2023-08-04 07:58:21,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 07:58:20" (2/3) ... [2023-08-04 07:58:21,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f0726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 07:58:21, skipping insertion in model container [2023-08-04 07:58:21,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 07:58:21" (3/3) ... [2023-08-04 07:58:21,134 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread_triangular-longer-1_bound2.i [2023-08-04 07:58:21,173 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-04 07:58:21,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-04 07:58:21,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-04 07:58:21,182 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-04 07:58:21,246 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-04 07:58:21,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:21,332 INFO L124 PetriNetUnfolderBase]: 16/165 cut-off events. [2023-08-04 07:58:21,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 07:58:21,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 165 events. 16/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 483 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 92. Up to 8 conditions per place. [2023-08-04 07:58:21,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:21,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:21,347 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 07:58:21,355 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:21,357 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:21,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:21,390 INFO L124 PetriNetUnfolderBase]: 16/165 cut-off events. [2023-08-04 07:58:21,390 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 07:58:21,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 165 events. 16/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 483 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 92. Up to 8 conditions per place. [2023-08-04 07:58:21,394 INFO L119 LiptonReduction]: Number of co-enabled transitions 1694 [2023-08-04 07:58:23,245 INFO L134 LiptonReduction]: Checked pairs total: 1481 [2023-08-04 07:58:23,245 INFO L136 LiptonReduction]: Total number of compositions: 70 [2023-08-04 07:58:23,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 07:58:23,264 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=true, 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;@5278887b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 07:58:23,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-04 07:58:23,267 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 07:58:23,267 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2023-08-04 07:58:23,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 07:58:23,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:23,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-04 07:58:23,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:23,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:23,273 INFO L85 PathProgramCache]: Analyzing trace with hash 9912496, now seen corresponding path program 1 times [2023-08-04 07:58:23,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:23,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956767941] [2023-08-04 07:58:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:23,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 07:58:23,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:23,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956767941] [2023-08-04 07:58:23,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956767941] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:58:23,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 07:58:23,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-04 07:58:23,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534485162] [2023-08-04 07:58:23,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:58:23,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-04 07:58:23,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:23,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-04 07:58:23,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-04 07:58:23,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 150 [2023-08-04 07:58:23,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:23,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 150 [2023-08-04 07:58:23,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:23,585 INFO L124 PetriNetUnfolderBase]: 124/210 cut-off events. [2023-08-04 07:58:23,585 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 07:58:23,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 210 events. 124/210 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 587 event pairs, 30 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 414. Up to 199 conditions per place. [2023-08-04 07:58:23,589 INFO L140 encePairwiseOnDemand]: 146/150 looper letters, 17 selfloop transitions, 2 changer transitions 4/23 dead transitions. [2023-08-04 07:58:23,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 23 transitions, 98 flow [2023-08-04 07:58:23,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-04 07:58:23,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-04 07:58:23,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2023-08-04 07:58:23,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044444444444445 [2023-08-04 07:58:23,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 227 transitions. [2023-08-04 07:58:23,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 227 transitions. [2023-08-04 07:58:23,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:23,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 227 transitions. [2023-08-04 07:58:23,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,623 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,625 INFO L175 Difference]: Start difference. First operand has 22 places, 20 transitions, 50 flow. Second operand 3 states and 227 transitions. [2023-08-04 07:58:23,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 23 transitions, 98 flow [2023-08-04 07:58:23,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 23 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-04 07:58:23,629 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 46 flow [2023-08-04 07:58:23,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-04 07:58:23,634 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2023-08-04 07:58:23,634 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 46 flow [2023-08-04 07:58:23,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:23,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:23,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-04 07:58:23,635 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:23,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:23,636 INFO L85 PathProgramCache]: Analyzing trace with hash -340795523, now seen corresponding path program 1 times [2023-08-04 07:58:23,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:23,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722704622] [2023-08-04 07:58:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:23,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 07:58:23,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:23,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722704622] [2023-08-04 07:58:23,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722704622] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:23,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860512235] [2023-08-04 07:58:23,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:23,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:23,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:23,721 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:23,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-04 07:58:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:23,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-04 07:58:23,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:23,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-04 07:58:23,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-04 07:58:23,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860512235] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:58:23,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-04 07:58:23,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-04 07:58:23,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833078224] [2023-08-04 07:58:23,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:58:23,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-04 07:58:23,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:23,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-04 07:58:23,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-04 07:58:23,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 150 [2023-08-04 07:58:23,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:23,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 150 [2023-08-04 07:58:23,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:23,880 INFO L124 PetriNetUnfolderBase]: 97/159 cut-off events. [2023-08-04 07:58:23,880 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-04 07:58:23,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 159 events. 97/159 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 385 event pairs, 28 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 327. Up to 127 conditions per place. [2023-08-04 07:58:23,884 INFO L140 encePairwiseOnDemand]: 147/150 looper letters, 20 selfloop transitions, 2 changer transitions 1/23 dead transitions. [2023-08-04 07:58:23,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 23 transitions, 106 flow [2023-08-04 07:58:23,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-04 07:58:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-04 07:58:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2023-08-04 07:58:23,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-04 07:58:23,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2023-08-04 07:58:23,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2023-08-04 07:58:23,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:23,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2023-08-04 07:58:23,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,900 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 46 flow. Second operand 3 states and 228 transitions. [2023-08-04 07:58:23,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 23 transitions, 106 flow [2023-08-04 07:58:23,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 23 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-04 07:58:23,901 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 50 flow [2023-08-04 07:58:23,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, 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=50, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-08-04 07:58:23,902 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2023-08-04 07:58:23,902 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 50 flow [2023-08-04 07:58:23,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:23,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:23,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:23,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-04 07:58:24,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:24,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:24,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:24,105 INFO L85 PathProgramCache]: Analyzing trace with hash 668367625, now seen corresponding path program 1 times [2023-08-04 07:58:24,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:24,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721441998] [2023-08-04 07:58:24,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:24,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:24,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-04 07:58:24,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:24,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721441998] [2023-08-04 07:58:24,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721441998] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:24,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55409036] [2023-08-04 07:58:24,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:24,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:24,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:24,223 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:24,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-04 07:58:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:24,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-04 07:58:24,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-04 07:58:24,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 07:58:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-04 07:58:24,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55409036] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 07:58:24,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 07:58:24,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-08-04 07:58:24,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667996310] [2023-08-04 07:58:24,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 07:58:24,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-04 07:58:24,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:24,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-04 07:58:24,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-04 07:58:24,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 150 [2023-08-04 07:58:24,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:24,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:24,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 150 [2023-08-04 07:58:24,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:24,396 INFO L124 PetriNetUnfolderBase]: 7/18 cut-off events. [2023-08-04 07:58:24,396 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-04 07:58:24,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 18 events. 7/18 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 3/18 useless extension candidates. Maximal degree in co-relation 41. Up to 12 conditions per place. [2023-08-04 07:58:24,397 INFO L140 encePairwiseOnDemand]: 147/150 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-04 07:58:24,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 49 flow [2023-08-04 07:58:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-04 07:58:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-04 07:58:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2023-08-04 07:58:24,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2023-08-04 07:58:24,400 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 280 transitions. [2023-08-04 07:58:24,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 280 transitions. [2023-08-04 07:58:24,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:24,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 280 transitions. [2023-08-04 07:58:24,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:24,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:24,406 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:24,406 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 50 flow. Second operand 4 states and 280 transitions. [2023-08-04 07:58:24,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 49 flow [2023-08-04 07:58:24,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 11 transitions, 47 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-04 07:58:24,407 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2023-08-04 07:58:24,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2023-08-04 07:58:24,408 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -7 predicate places. [2023-08-04 07:58:24,408 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2023-08-04 07:58:24,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:24,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-08-04 07:58:24,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-04 07:58:24,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-04 07:58:24,618 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-04 07:58:24,620 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2023-08-04 07:58:24,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:24,638 INFO L124 PetriNetUnfolderBase]: 16/165 cut-off events. [2023-08-04 07:58:24,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 07:58:24,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 165 events. 16/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 483 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 92. Up to 8 conditions per place. [2023-08-04 07:58:24,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:24,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:24,640 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 07:58:24,641 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:24,641 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:24,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 80 transitions, 170 flow [2023-08-04 07:58:24,656 INFO L124 PetriNetUnfolderBase]: 16/165 cut-off events. [2023-08-04 07:58:24,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 07:58:24,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 165 events. 16/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 483 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 92. Up to 8 conditions per place. [2023-08-04 07:58:24,660 INFO L119 LiptonReduction]: Number of co-enabled transitions 1694 [2023-08-04 07:58:26,156 INFO L134 LiptonReduction]: Checked pairs total: 1505 [2023-08-04 07:58:26,157 INFO L136 LiptonReduction]: Total number of compositions: 70 [2023-08-04 07:58:26,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-04 07:58:26,160 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=true, 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;@5278887b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 07:58:26,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-04 07:58:26,163 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 07:58:26,163 INFO L124 PetriNetUnfolderBase]: 5/28 cut-off events. [2023-08-04 07:58:26,163 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 07:58:26,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:26,164 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-04 07:58:26,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-04 07:58:26,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:26,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1238742026, now seen corresponding path program 1 times [2023-08-04 07:58:26,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:26,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174666703] [2023-08-04 07:58:26,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:26,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 07:58:26,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-04 07:58:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 07:58:26,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-04 07:58:26,208 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-04 07:58:26,208 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-04 07:58:26,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-04 07:58:26,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-04 07:58:26,208 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-04 07:58:26,209 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2023-08-04 07:58:26,210 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-04 07:58:26,210 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-04 07:58:26,226 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-04 07:58:26,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 104 transitions, 232 flow [2023-08-04 07:58:26,275 INFO L124 PetriNetUnfolderBase]: 37/358 cut-off events. [2023-08-04 07:58:26,275 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-04 07:58:26,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 358 events. 37/358 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1423 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 257. Up to 18 conditions per place. [2023-08-04 07:58:26,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 104 transitions, 232 flow [2023-08-04 07:58:26,279 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 104 transitions, 232 flow [2023-08-04 07:58:26,279 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 07:58:26,279 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 104 transitions, 232 flow [2023-08-04 07:58:26,279 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 104 transitions, 232 flow [2023-08-04 07:58:26,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 104 transitions, 232 flow [2023-08-04 07:58:26,303 INFO L124 PetriNetUnfolderBase]: 37/358 cut-off events. [2023-08-04 07:58:26,303 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-04 07:58:26,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 358 events. 37/358 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1423 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 257. Up to 18 conditions per place. [2023-08-04 07:58:26,311 INFO L119 LiptonReduction]: Number of co-enabled transitions 4444 [2023-08-04 07:58:28,076 INFO L134 LiptonReduction]: Checked pairs total: 3916 [2023-08-04 07:58:28,076 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-08-04 07:58:28,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 07:58:28,079 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=true, 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;@5278887b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 07:58:28,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-04 07:58:28,081 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 07:58:28,081 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2023-08-04 07:58:28,081 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 07:58:28,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:28,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-04 07:58:28,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:28,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:28,082 INFO L85 PathProgramCache]: Analyzing trace with hash 18650122, now seen corresponding path program 1 times [2023-08-04 07:58:28,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:28,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208274970] [2023-08-04 07:58:28,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:28,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 07:58:28,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208274970] [2023-08-04 07:58:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208274970] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:58:28,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 07:58:28,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-04 07:58:28,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571791312] [2023-08-04 07:58:28,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:58:28,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-04 07:58:28,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:28,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-04 07:58:28,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-04 07:58:28,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 190 [2023-08-04 07:58:28,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:28,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 190 [2023-08-04 07:58:28,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:28,418 INFO L124 PetriNetUnfolderBase]: 3088/4138 cut-off events. [2023-08-04 07:58:28,419 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2023-08-04 07:58:28,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8415 conditions, 4138 events. 3088/4138 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 15410 event pairs, 1386 based on Foata normal form. 0/2737 useless extension candidates. Maximal degree in co-relation 2694. Up to 4045 conditions per place. [2023-08-04 07:58:28,441 INFO L140 encePairwiseOnDemand]: 186/190 looper letters, 27 selfloop transitions, 2 changer transitions 3/34 dead transitions. [2023-08-04 07:58:28,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 152 flow [2023-08-04 07:58:28,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-04 07:58:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-04 07:58:28,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-08-04 07:58:28,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.519298245614035 [2023-08-04 07:58:28,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-08-04 07:58:28,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-08-04 07:58:28,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:28,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-08-04 07:58:28,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,446 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 84 flow. Second operand 3 states and 296 transitions. [2023-08-04 07:58:28,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 152 flow [2023-08-04 07:58:28,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 34 transitions, 148 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-04 07:58:28,450 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 80 flow [2023-08-04 07:58:28,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2023-08-04 07:58:28,454 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-08-04 07:58:28,454 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 80 flow [2023-08-04 07:58:28,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:28,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:28,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-04 07:58:28,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:28,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:28,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1203386416, now seen corresponding path program 1 times [2023-08-04 07:58:28,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:28,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150408541] [2023-08-04 07:58:28,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:28,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:28,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 07:58:28,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:28,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150408541] [2023-08-04 07:58:28,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150408541] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:28,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887678144] [2023-08-04 07:58:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:28,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:28,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:28,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:28,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-04 07:58:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:28,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-04 07:58:28,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-04 07:58:28,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-04 07:58:28,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887678144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:58:28,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-04 07:58:28,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-04 07:58:28,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510329279] [2023-08-04 07:58:28,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:58:28,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-04 07:58:28,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:28,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-04 07:58:28,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-04 07:58:28,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 190 [2023-08-04 07:58:28,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:28,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 190 [2023-08-04 07:58:28,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:28,849 INFO L124 PetriNetUnfolderBase]: 2521/3355 cut-off events. [2023-08-04 07:58:28,850 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-04 07:58:28,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6837 conditions, 3355 events. 2521/3355 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 11665 event pairs, 1120 based on Foata normal form. 0/2323 useless extension candidates. Maximal degree in co-relation 6801. Up to 3127 conditions per place. [2023-08-04 07:58:28,869 INFO L140 encePairwiseOnDemand]: 187/190 looper letters, 34 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2023-08-04 07:58:28,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 174 flow [2023-08-04 07:58:28,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-04 07:58:28,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-04 07:58:28,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2023-08-04 07:58:28,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2023-08-04 07:58:28,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2023-08-04 07:58:28,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2023-08-04 07:58:28,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:28,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2023-08-04 07:58:28,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,874 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 80 flow. Second operand 3 states and 300 transitions. [2023-08-04 07:58:28,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 174 flow [2023-08-04 07:58:28,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-04 07:58:28,876 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 90 flow [2023-08-04 07:58:28,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-08-04 07:58:28,878 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2023-08-04 07:58:28,878 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 90 flow [2023-08-04 07:58:28,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:28,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:28,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:28,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-04 07:58:29,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:29,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:29,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash 127965763, now seen corresponding path program 1 times [2023-08-04 07:58:29,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:29,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419936526] [2023-08-04 07:58:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:29,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-04 07:58:29,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:29,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419936526] [2023-08-04 07:58:29,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419936526] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:29,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735428681] [2023-08-04 07:58:29,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:29,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:29,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:29,149 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:29,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-04 07:58:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:29,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-04 07:58:29,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-04 07:58:29,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 07:58:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-04 07:58:29,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735428681] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 07:58:29,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 07:58:29,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2023-08-04 07:58:29,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935681384] [2023-08-04 07:58:29,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 07:58:29,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-04 07:58:29,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-04 07:58:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-04 07:58:29,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 190 [2023-08-04 07:58:29,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:29,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:29,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 190 [2023-08-04 07:58:29,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:29,436 INFO L124 PetriNetUnfolderBase]: 2044/2680 cut-off events. [2023-08-04 07:58:29,436 INFO L125 PetriNetUnfolderBase]: For 270/270 co-relation queries the response was YES. [2023-08-04 07:58:29,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5713 conditions, 2680 events. 2044/2680 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 8666 event pairs, 564 based on Foata normal form. 3/1965 useless extension candidates. Maximal degree in co-relation 2272. Up to 2575 conditions per place. [2023-08-04 07:58:29,450 INFO L140 encePairwiseOnDemand]: 186/190 looper letters, 33 selfloop transitions, 3 changer transitions 1/39 dead transitions. [2023-08-04 07:58:29,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 39 transitions, 186 flow [2023-08-04 07:58:29,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-04 07:58:29,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-04 07:58:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 385 transitions. [2023-08-04 07:58:29,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.506578947368421 [2023-08-04 07:58:29,452 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 385 transitions. [2023-08-04 07:58:29,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 385 transitions. [2023-08-04 07:58:29,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:29,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 385 transitions. [2023-08-04 07:58:29,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:29,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:29,455 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:29,455 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 90 flow. Second operand 4 states and 385 transitions. [2023-08-04 07:58:29,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 39 transitions, 186 flow [2023-08-04 07:58:29,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-04 07:58:29,457 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 102 flow [2023-08-04 07:58:29,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-08-04 07:58:29,458 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2023-08-04 07:58:29,458 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 102 flow [2023-08-04 07:58:29,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:29,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:29,459 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:29,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-04 07:58:29,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:29,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:29,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:29,665 INFO L85 PathProgramCache]: Analyzing trace with hash 785131912, now seen corresponding path program 1 times [2023-08-04 07:58:29,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:29,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303450877] [2023-08-04 07:58:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:29,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-04 07:58:29,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:29,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303450877] [2023-08-04 07:58:29,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303450877] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:29,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216385166] [2023-08-04 07:58:29,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:29,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:29,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:29,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:29,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-04 07:58:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:29,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-04 07:58:29,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-04 07:58:29,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 07:58:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-04 07:58:29,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216385166] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 07:58:29,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 07:58:29,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-08-04 07:58:29,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719212075] [2023-08-04 07:58:29,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 07:58:29,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-04 07:58:29,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:29,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-04 07:58:29,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-04 07:58:29,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 190 [2023-08-04 07:58:29,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:29,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:29,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 190 [2023-08-04 07:58:29,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:30,029 INFO L124 PetriNetUnfolderBase]: 1864/2437 cut-off events. [2023-08-04 07:58:30,029 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2023-08-04 07:58:30,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5210 conditions, 2437 events. 1864/2437 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7598 event pairs, 400 based on Foata normal form. 27/1806 useless extension candidates. Maximal degree in co-relation 2059. Up to 1282 conditions per place. [2023-08-04 07:58:30,041 INFO L140 encePairwiseOnDemand]: 186/190 looper letters, 45 selfloop transitions, 3 changer transitions 1/51 dead transitions. [2023-08-04 07:58:30,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 246 flow [2023-08-04 07:58:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-04 07:58:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-04 07:58:30,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2023-08-04 07:58:30,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5223684210526316 [2023-08-04 07:58:30,043 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 397 transitions. [2023-08-04 07:58:30,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 397 transitions. [2023-08-04 07:58:30,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:30,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 397 transitions. [2023-08-04 07:58:30,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,048 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,048 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 102 flow. Second operand 4 states and 397 transitions. [2023-08-04 07:58:30,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 246 flow [2023-08-04 07:58:30,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 51 transitions, 239 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-04 07:58:30,052 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 109 flow [2023-08-04 07:58:30,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2023-08-04 07:58:30,053 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-04 07:58:30,053 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 109 flow [2023-08-04 07:58:30,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:30,054 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:30,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-04 07:58:30,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:30,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:30,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:30,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1194866460, now seen corresponding path program 1 times [2023-08-04 07:58:30,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:30,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772131755] [2023-08-04 07:58:30,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:30,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:30,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-04 07:58:30,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:30,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772131755] [2023-08-04 07:58:30,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772131755] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:58:30,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 07:58:30,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-04 07:58:30,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514777485] [2023-08-04 07:58:30,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:58:30,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-04 07:58:30,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:30,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-04 07:58:30,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-04 07:58:30,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 190 [2023-08-04 07:58:30,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:30,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 190 [2023-08-04 07:58:30,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:30,749 INFO L124 PetriNetUnfolderBase]: 2936/3855 cut-off events. [2023-08-04 07:58:30,749 INFO L125 PetriNetUnfolderBase]: For 2110/2110 co-relation queries the response was YES. [2023-08-04 07:58:30,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8991 conditions, 3855 events. 2936/3855 cut-off events. For 2110/2110 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 14069 event pairs, 618 based on Foata normal form. 153/2924 useless extension candidates. Maximal degree in co-relation 3745. Up to 2367 conditions per place. [2023-08-04 07:58:30,777 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 61 selfloop transitions, 12 changer transitions 0/75 dead transitions. [2023-08-04 07:58:30,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 75 transitions, 396 flow [2023-08-04 07:58:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-04 07:58:30,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-04 07:58:30,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 491 transitions. [2023-08-04 07:58:30,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5168421052631579 [2023-08-04 07:58:30,780 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 491 transitions. [2023-08-04 07:58:30,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 491 transitions. [2023-08-04 07:58:30,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:30,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 491 transitions. [2023-08-04 07:58:30,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,783 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,783 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 109 flow. Second operand 5 states and 491 transitions. [2023-08-04 07:58:30,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 75 transitions, 396 flow [2023-08-04 07:58:30,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 75 transitions, 382 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-04 07:58:30,787 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 185 flow [2023-08-04 07:58:30,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-08-04 07:58:30,788 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 12 predicate places. [2023-08-04 07:58:30,789 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 185 flow [2023-08-04 07:58:30,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:30,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:30,789 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:30,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-04 07:58:30,789 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:30,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:30,790 INFO L85 PathProgramCache]: Analyzing trace with hash -973740040, now seen corresponding path program 1 times [2023-08-04 07:58:30,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:30,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328230371] [2023-08-04 07:58:30,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:30,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:30,899 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:30,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328230371] [2023-08-04 07:58:30,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328230371] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806101414] [2023-08-04 07:58:30,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:30,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:30,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:30,901 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:30,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-04 07:58:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:30,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-04 07:58:30,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:31,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:31,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-04 07:58:31,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806101414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:58:31,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-04 07:58:31,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-04 07:58:31,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83796278] [2023-08-04 07:58:31,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:58:31,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-04 07:58:31,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:31,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-04 07:58:31,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-04 07:58:31,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 190 [2023-08-04 07:58:31,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:31,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:31,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 190 [2023-08-04 07:58:31,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:31,507 INFO L124 PetriNetUnfolderBase]: 3752/4937 cut-off events. [2023-08-04 07:58:31,507 INFO L125 PetriNetUnfolderBase]: For 4033/4033 co-relation queries the response was YES. [2023-08-04 07:58:31,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13944 conditions, 4937 events. 3752/4937 cut-off events. For 4033/4033 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 18874 event pairs, 1186 based on Foata normal form. 72/4991 useless extension candidates. Maximal degree in co-relation 11922. Up to 1990 conditions per place. [2023-08-04 07:58:31,544 INFO L140 encePairwiseOnDemand]: 185/190 looper letters, 53 selfloop transitions, 13 changer transitions 0/68 dead transitions. [2023-08-04 07:58:31,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 68 transitions, 418 flow [2023-08-04 07:58:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-04 07:58:31,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-04 07:58:31,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 385 transitions. [2023-08-04 07:58:31,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.506578947368421 [2023-08-04 07:58:31,546 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 385 transitions. [2023-08-04 07:58:31,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 385 transitions. [2023-08-04 07:58:31,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:31,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 385 transitions. [2023-08-04 07:58:31,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:31,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:31,549 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:31,549 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 185 flow. Second operand 4 states and 385 transitions. [2023-08-04 07:58:31,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 68 transitions, 418 flow [2023-08-04 07:58:31,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 68 transitions, 418 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-04 07:58:31,560 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 258 flow [2023-08-04 07:58:31,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2023-08-04 07:58:31,562 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 17 predicate places. [2023-08-04 07:58:31,562 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 258 flow [2023-08-04 07:58:31,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:31,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:31,562 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:31,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-04 07:58:31,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:31,768 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:31,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1601358351, now seen corresponding path program 1 times [2023-08-04 07:58:31,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:31,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36994901] [2023-08-04 07:58:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:31,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:31,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:31,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36994901] [2023-08-04 07:58:31,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36994901] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:31,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489481789] [2023-08-04 07:58:31,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:31,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:31,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:31,874 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:31,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-04 07:58:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:31,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-04 07:58:31,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:31,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-04 07:58:31,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489481789] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:58:31,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-04 07:58:31,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-04 07:58:31,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851674067] [2023-08-04 07:58:31,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:58:31,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-04 07:58:31,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:31,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-04 07:58:31,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-04 07:58:32,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 190 [2023-08-04 07:58:32,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:32,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:32,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 190 [2023-08-04 07:58:32,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:32,657 INFO L124 PetriNetUnfolderBase]: 5264/6855 cut-off events. [2023-08-04 07:58:32,657 INFO L125 PetriNetUnfolderBase]: For 8364/8364 co-relation queries the response was YES. [2023-08-04 07:58:32,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21213 conditions, 6855 events. 5264/6855 cut-off events. For 8364/8364 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 27743 event pairs, 1047 based on Foata normal form. 136/6981 useless extension candidates. Maximal degree in co-relation 17942. Up to 3620 conditions per place. [2023-08-04 07:58:32,692 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 86 selfloop transitions, 16 changer transitions 0/104 dead transitions. [2023-08-04 07:58:32,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 104 transitions, 693 flow [2023-08-04 07:58:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-04 07:58:32,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-04 07:58:32,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 586 transitions. [2023-08-04 07:58:32,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5140350877192983 [2023-08-04 07:58:32,695 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 586 transitions. [2023-08-04 07:58:32,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 586 transitions. [2023-08-04 07:58:32,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:32,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 586 transitions. [2023-08-04 07:58:32,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.66666666666667) internal successors, (586), 6 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:32,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:32,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:32,698 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 258 flow. Second operand 6 states and 586 transitions. [2023-08-04 07:58:32,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 104 transitions, 693 flow [2023-08-04 07:58:32,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 104 transitions, 669 flow, removed 10 selfloop flow, removed 1 redundant places. [2023-08-04 07:58:32,718 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 354 flow [2023-08-04 07:58:32,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2023-08-04 07:58:32,719 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 24 predicate places. [2023-08-04 07:58:32,719 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 354 flow [2023-08-04 07:58:32,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:32,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:32,719 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:32,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-04 07:58:32,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:32,925 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:32,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1601331381, now seen corresponding path program 2 times [2023-08-04 07:58:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:32,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850441696] [2023-08-04 07:58:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:33,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-04 07:58:33,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:33,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850441696] [2023-08-04 07:58:33,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850441696] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:58:33,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 07:58:33,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-04 07:58:33,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287639347] [2023-08-04 07:58:33,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:58:33,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-04 07:58:33,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:33,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-04 07:58:33,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-04 07:58:33,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 190 [2023-08-04 07:58:33,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:33,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:33,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 190 [2023-08-04 07:58:33,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:33,682 INFO L124 PetriNetUnfolderBase]: 5576/7313 cut-off events. [2023-08-04 07:58:33,682 INFO L125 PetriNetUnfolderBase]: For 14029/14029 co-relation queries the response was YES. [2023-08-04 07:58:33,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24925 conditions, 7313 events. 5576/7313 cut-off events. For 14029/14029 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 30089 event pairs, 1219 based on Foata normal form. 136/7439 useless extension candidates. Maximal degree in co-relation 19027. Up to 3876 conditions per place. [2023-08-04 07:58:33,725 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 84 selfloop transitions, 23 changer transitions 0/109 dead transitions. [2023-08-04 07:58:33,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 109 transitions, 808 flow [2023-08-04 07:58:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-04 07:58:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-04 07:58:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 581 transitions. [2023-08-04 07:58:33,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5096491228070176 [2023-08-04 07:58:33,728 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 581 transitions. [2023-08-04 07:58:33,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 581 transitions. [2023-08-04 07:58:33,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:33,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 581 transitions. [2023-08-04 07:58:33,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:33,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:33,731 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:33,732 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 354 flow. Second operand 6 states and 581 transitions. [2023-08-04 07:58:33,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 109 transitions, 808 flow [2023-08-04 07:58:33,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 109 transitions, 742 flow, removed 22 selfloop flow, removed 2 redundant places. [2023-08-04 07:58:33,800 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 452 flow [2023-08-04 07:58:33,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=452, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2023-08-04 07:58:33,800 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 30 predicate places. [2023-08-04 07:58:33,801 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 452 flow [2023-08-04 07:58:33,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:33,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:33,801 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:33,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-04 07:58:33,801 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:33,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:33,802 INFO L85 PathProgramCache]: Analyzing trace with hash -965252895, now seen corresponding path program 1 times [2023-08-04 07:58:33,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:33,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161556561] [2023-08-04 07:58:33,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:33,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:33,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:33,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161556561] [2023-08-04 07:58:33,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161556561] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:33,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273144812] [2023-08-04 07:58:33,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:33,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:33,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:33,906 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:33,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-04 07:58:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:34,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-04 07:58:34,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:34,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 07:58:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:34,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273144812] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 07:58:34,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 07:58:34,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-08-04 07:58:34,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621397992] [2023-08-04 07:58:34,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 07:58:34,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-04 07:58:34,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:34,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-04 07:58:34,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-04 07:58:34,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 190 [2023-08-04 07:58:34,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 452 flow. Second operand has 11 states, 11 states have (on average 86.0909090909091) internal successors, (947), 11 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:34,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:34,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 190 [2023-08-04 07:58:34,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:35,271 INFO L124 PetriNetUnfolderBase]: 8312/10815 cut-off events. [2023-08-04 07:58:35,271 INFO L125 PetriNetUnfolderBase]: For 29562/29562 co-relation queries the response was YES. [2023-08-04 07:58:35,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39011 conditions, 10815 events. 8312/10815 cut-off events. For 29562/29562 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 47019 event pairs, 616 based on Foata normal form. 256/11061 useless extension candidates. Maximal degree in co-relation 33108. Up to 1991 conditions per place. [2023-08-04 07:58:35,353 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 159 selfloop transitions, 49 changer transitions 0/210 dead transitions. [2023-08-04 07:58:35,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 210 transitions, 1540 flow [2023-08-04 07:58:35,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-04 07:58:35,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-04 07:58:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1264 transitions. [2023-08-04 07:58:35,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5117408906882591 [2023-08-04 07:58:35,357 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1264 transitions. [2023-08-04 07:58:35,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1264 transitions. [2023-08-04 07:58:35,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:35,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1264 transitions. [2023-08-04 07:58:35,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 97.23076923076923) internal successors, (1264), 13 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:35,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 190.0) internal successors, (2660), 14 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:35,364 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 190.0) internal successors, (2660), 14 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:35,364 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 452 flow. Second operand 13 states and 1264 transitions. [2023-08-04 07:58:35,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 210 transitions, 1540 flow [2023-08-04 07:58:35,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 210 transitions, 1519 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-04 07:58:35,469 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 813 flow [2023-08-04 07:58:35,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=813, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2023-08-04 07:58:35,470 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 48 predicate places. [2023-08-04 07:58:35,470 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 813 flow [2023-08-04 07:58:35,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 86.0909090909091) internal successors, (947), 11 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:35,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:35,471 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:35,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-04 07:58:35,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-04 07:58:35,683 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:35,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:35,684 INFO L85 PathProgramCache]: Analyzing trace with hash 50391111, now seen corresponding path program 2 times [2023-08-04 07:58:35,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:35,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079338995] [2023-08-04 07:58:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:35,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:35,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:35,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079338995] [2023-08-04 07:58:35,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079338995] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:35,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102765190] [2023-08-04 07:58:35,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-04 07:58:35,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:35,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:35,805 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:35,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-04 07:58:35,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-04 07:58:35,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 07:58:35,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-04 07:58:35,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:35,950 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:35,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 07:58:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:36,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102765190] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 07:58:36,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 07:58:36,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-04 07:58:36,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849042029] [2023-08-04 07:58:36,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 07:58:36,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-04 07:58:36,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:36,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-04 07:58:36,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-08-04 07:58:36,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 190 [2023-08-04 07:58:36,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 813 flow. Second operand has 14 states, 14 states have (on average 85.64285714285714) internal successors, (1199), 14 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:36,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:36,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 190 [2023-08-04 07:58:36,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:38,219 INFO L124 PetriNetUnfolderBase]: 14440/18687 cut-off events. [2023-08-04 07:58:38,220 INFO L125 PetriNetUnfolderBase]: For 127094/127094 co-relation queries the response was YES. [2023-08-04 07:58:38,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86148 conditions, 18687 events. 14440/18687 cut-off events. For 127094/127094 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 86364 event pairs, 643 based on Foata normal form. 320/18997 useless extension candidates. Maximal degree in co-relation 78698. Up to 3747 conditions per place. [2023-08-04 07:58:38,374 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 245 selfloop transitions, 86 changer transitions 0/333 dead transitions. [2023-08-04 07:58:38,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 333 transitions, 3105 flow [2023-08-04 07:58:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-04 07:58:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-04 07:58:38,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1946 transitions. [2023-08-04 07:58:38,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5121052631578947 [2023-08-04 07:58:38,379 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1946 transitions. [2023-08-04 07:58:38,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1946 transitions. [2023-08-04 07:58:38,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:38,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1946 transitions. [2023-08-04 07:58:38,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 97.3) internal successors, (1946), 20 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:38,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 190.0) internal successors, (3990), 21 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:38,391 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 190.0) internal successors, (3990), 21 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:38,391 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 813 flow. Second operand 20 states and 1946 transitions. [2023-08-04 07:58:38,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 333 transitions, 3105 flow [2023-08-04 07:58:39,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 333 transitions, 2862 flow, removed 101 selfloop flow, removed 6 redundant places. [2023-08-04 07:58:39,081 INFO L231 Difference]: Finished difference. Result has 105 places, 115 transitions, 1472 flow [2023-08-04 07:58:39,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1472, PETRI_PLACES=105, PETRI_TRANSITIONS=115} [2023-08-04 07:58:39,081 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 71 predicate places. [2023-08-04 07:58:39,081 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 115 transitions, 1472 flow [2023-08-04 07:58:39,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 85.64285714285714) internal successors, (1199), 14 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:39,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:39,082 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:39,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-08-04 07:58:39,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-04 07:58:39,283 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:39,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:39,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1346769123, now seen corresponding path program 3 times [2023-08-04 07:58:39,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:39,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910701083] [2023-08-04 07:58:39,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:39,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:39,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:39,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910701083] [2023-08-04 07:58:39,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910701083] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:39,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131306315] [2023-08-04 07:58:39,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-04 07:58:39,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:39,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:39,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:39,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-04 07:58:39,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-04 07:58:39,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 07:58:39,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-04 07:58:39,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:39,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 07:58:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:39,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131306315] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 07:58:39,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 07:58:39,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-08-04 07:58:39,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370322069] [2023-08-04 07:58:39,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 07:58:39,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-04 07:58:39,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:39,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-04 07:58:39,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2023-08-04 07:58:39,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 190 [2023-08-04 07:58:39,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 115 transitions, 1472 flow. Second operand has 19 states, 19 states have (on average 85.21052631578948) internal successors, (1619), 19 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:39,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:39,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 190 [2023-08-04 07:58:39,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:43,222 INFO L124 PetriNetUnfolderBase]: 21416/27647 cut-off events. [2023-08-04 07:58:43,223 INFO L125 PetriNetUnfolderBase]: For 419498/419498 co-relation queries the response was YES. [2023-08-04 07:58:43,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159253 conditions, 27647 events. 21416/27647 cut-off events. For 419498/419498 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 130114 event pairs, 616 based on Foata normal form. 512/28149 useless extension candidates. Maximal degree in co-relation 147982. Up to 5034 conditions per place. [2023-08-04 07:58:43,434 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 351 selfloop transitions, 128 changer transitions 0/481 dead transitions. [2023-08-04 07:58:43,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 481 transitions, 5516 flow [2023-08-04 07:58:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-04 07:58:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-04 07:58:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2820 transitions. [2023-08-04 07:58:43,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5117967332123412 [2023-08-04 07:58:43,442 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2820 transitions. [2023-08-04 07:58:43,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2820 transitions. [2023-08-04 07:58:43,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:43,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2820 transitions. [2023-08-04 07:58:43,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 97.24137931034483) internal successors, (2820), 29 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:43,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 190.0) internal successors, (5700), 30 states have internal predecessors, (5700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:43,459 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 190.0) internal successors, (5700), 30 states have internal predecessors, (5700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:43,459 INFO L175 Difference]: Start difference. First operand has 105 places, 115 transitions, 1472 flow. Second operand 29 states and 2820 transitions. [2023-08-04 07:58:43,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 481 transitions, 5516 flow [2023-08-04 07:58:46,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 481 transitions, 4872 flow, removed 306 selfloop flow, removed 5 redundant places. [2023-08-04 07:58:46,200 INFO L231 Difference]: Finished difference. Result has 143 places, 157 transitions, 2430 flow [2023-08-04 07:58:46,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=2430, PETRI_PLACES=143, PETRI_TRANSITIONS=157} [2023-08-04 07:58:46,200 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 109 predicate places. [2023-08-04 07:58:46,201 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 157 transitions, 2430 flow [2023-08-04 07:58:46,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 85.21052631578948) internal successors, (1619), 19 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:46,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:58:46,201 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:58:46,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-04 07:58:46,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-04 07:58:46,402 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:58:46,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:58:46,402 INFO L85 PathProgramCache]: Analyzing trace with hash 203908559, now seen corresponding path program 4 times [2023-08-04 07:58:46,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:58:46,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312829724] [2023-08-04 07:58:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:58:46,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:58:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:58:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:46,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:58:46,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312829724] [2023-08-04 07:58:46,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312829724] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:58:46,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176998244] [2023-08-04 07:58:46,691 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-04 07:58:46,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:58:46,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:58:46,692 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:58:46,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-04 07:58:46,791 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-04 07:58:46,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 07:58:46,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 18 conjunts are in the unsatisfiable core [2023-08-04 07:58:46,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:58:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:46,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 07:58:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:58:47,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176998244] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 07:58:47,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 07:58:47,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2023-08-04 07:58:47,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175518038] [2023-08-04 07:58:47,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 07:58:47,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-04 07:58:47,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:58:47,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-04 07:58:47,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=709, Unknown=0, NotChecked=0, Total=930 [2023-08-04 07:58:47,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 190 [2023-08-04 07:58:47,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 157 transitions, 2430 flow. Second operand has 31 states, 31 states have (on average 84.74193548387096) internal successors, (2627), 31 states have internal predecessors, (2627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:47,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:58:47,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 190 [2023-08-04 07:58:47,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:58:53,683 INFO L124 PetriNetUnfolderBase]: 33480/43135 cut-off events. [2023-08-04 07:58:53,683 INFO L125 PetriNetUnfolderBase]: For 1336133/1336133 co-relation queries the response was YES. [2023-08-04 07:58:53,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312311 conditions, 43135 events. 33480/43135 cut-off events. For 1336133/1336133 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 206139 event pairs, 643 based on Foata normal form. 704/43829 useless extension candidates. Maximal degree in co-relation 307299. Up to 7991 conditions per place. [2023-08-04 07:58:54,273 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 581 selfloop transitions, 200 changer transitions 0/783 dead transitions. [2023-08-04 07:58:54,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 783 transitions, 10980 flow [2023-08-04 07:58:54,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-08-04 07:58:54,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-08-04 07:58:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 4668 transitions. [2023-08-04 07:58:54,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5118421052631579 [2023-08-04 07:58:54,284 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 4668 transitions. [2023-08-04 07:58:54,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 4668 transitions. [2023-08-04 07:58:54,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:58:54,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 4668 transitions. [2023-08-04 07:58:54,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 97.25) internal successors, (4668), 48 states have internal predecessors, (4668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:54,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 190.0) internal successors, (9310), 49 states have internal predecessors, (9310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:54,316 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 190.0) internal successors, (9310), 49 states have internal predecessors, (9310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:58:54,316 INFO L175 Difference]: Start difference. First operand has 143 places, 157 transitions, 2430 flow. Second operand 48 states and 4668 transitions. [2023-08-04 07:58:54,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 783 transitions, 10980 flow [2023-08-04 07:59:00,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 783 transitions, 9826 flow, removed 520 selfloop flow, removed 11 redundant places. [2023-08-04 07:59:00,727 INFO L231 Difference]: Finished difference. Result has 201 places, 229 transitions, 4252 flow [2023-08-04 07:59:00,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=1620, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=4252, PETRI_PLACES=201, PETRI_TRANSITIONS=229} [2023-08-04 07:59:00,728 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 167 predicate places. [2023-08-04 07:59:00,728 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 229 transitions, 4252 flow [2023-08-04 07:59:00,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 84.74193548387096) internal successors, (2627), 31 states have internal predecessors, (2627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:59:00,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:59:00,729 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:59:00,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-08-04 07:59:00,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-04 07:59:00,937 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:59:00,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:59:00,938 INFO L85 PathProgramCache]: Analyzing trace with hash -763431761, now seen corresponding path program 5 times [2023-08-04 07:59:00,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:59:00,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069135562] [2023-08-04 07:59:00,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:59:00,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:59:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:59:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:59:01,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:59:01,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069135562] [2023-08-04 07:59:01,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069135562] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:59:01,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625218192] [2023-08-04 07:59:01,351 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-04 07:59:01,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:59:01,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:59:01,353 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:59:01,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-04 07:59:01,460 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2023-08-04 07:59:01,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 07:59:01,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 26 conjunts are in the unsatisfiable core [2023-08-04 07:59:01,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:59:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:59:01,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 07:59:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-04 07:59:01,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625218192] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 07:59:01,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 07:59:01,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 23 [2023-08-04 07:59:01,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467354504] [2023-08-04 07:59:01,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 07:59:01,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-04 07:59:01,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:59:01,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-04 07:59:01,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2023-08-04 07:59:01,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 190 [2023-08-04 07:59:01,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 229 transitions, 4252 flow. Second operand has 25 states, 25 states have (on average 84.44) internal successors, (2111), 25 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:59:01,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:59:01,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 190 [2023-08-04 07:59:01,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 07:59:11,569 INFO L124 PetriNetUnfolderBase]: 40648/52351 cut-off events. [2023-08-04 07:59:11,569 INFO L125 PetriNetUnfolderBase]: For 3360649/3360649 co-relation queries the response was YES. [2023-08-04 07:59:12,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475451 conditions, 52351 events. 40648/52351 cut-off events. For 3360649/3360649 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 253132 event pairs, 874 based on Foata normal form. 128/52469 useless extension candidates. Maximal degree in co-relation 469457. Up to 8575 conditions per place. [2023-08-04 07:59:12,337 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 558 selfloop transitions, 229 changer transitions 0/789 dead transitions. [2023-08-04 07:59:12,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 789 transitions, 13760 flow [2023-08-04 07:59:12,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-08-04 07:59:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-08-04 07:59:12,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4366 transitions. [2023-08-04 07:59:12,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5106432748538011 [2023-08-04 07:59:12,345 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4366 transitions. [2023-08-04 07:59:12,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4366 transitions. [2023-08-04 07:59:12,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 07:59:12,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4366 transitions. [2023-08-04 07:59:12,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 97.02222222222223) internal successors, (4366), 45 states have internal predecessors, (4366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:59:12,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 190.0) internal successors, (8740), 46 states have internal predecessors, (8740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:59:12,373 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 190.0) internal successors, (8740), 46 states have internal predecessors, (8740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:59:12,373 INFO L175 Difference]: Start difference. First operand has 201 places, 229 transitions, 4252 flow. Second operand 45 states and 4366 transitions. [2023-08-04 07:59:12,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 789 transitions, 13760 flow [2023-08-04 07:59:33,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 789 transitions, 10790 flow, removed 1394 selfloop flow, removed 19 redundant places. [2023-08-04 07:59:33,469 INFO L231 Difference]: Finished difference. Result has 234 places, 273 transitions, 3636 flow [2023-08-04 07:59:33,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=2410, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=3636, PETRI_PLACES=234, PETRI_TRANSITIONS=273} [2023-08-04 07:59:33,470 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 200 predicate places. [2023-08-04 07:59:33,470 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 273 transitions, 3636 flow [2023-08-04 07:59:33,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 84.44) internal successors, (2111), 25 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:59:33,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 07:59:33,471 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 07:59:33,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-04 07:59:33,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-04 07:59:33,677 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 07:59:33,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 07:59:33,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2103449126, now seen corresponding path program 6 times [2023-08-04 07:59:33,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 07:59:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726651051] [2023-08-04 07:59:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 07:59:33,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 07:59:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 07:59:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 97 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-04 07:59:33,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 07:59:33,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726651051] [2023-08-04 07:59:33,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726651051] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 07:59:33,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438718033] [2023-08-04 07:59:33,876 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-04 07:59:33,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 07:59:33,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 07:59:33,877 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 07:59:33,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-04 07:59:33,989 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2023-08-04 07:59:33,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 07:59:33,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-04 07:59:33,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 07:59:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-04 07:59:34,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-04 07:59:34,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438718033] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 07:59:34,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-04 07:59:34,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2023-08-04 07:59:34,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911337884] [2023-08-04 07:59:34,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 07:59:34,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-04 07:59:34,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 07:59:34,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-04 07:59:34,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2023-08-04 07:59:34,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 190 [2023-08-04 07:59:34,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 273 transitions, 3636 flow. Second operand has 13 states, 13 states have (on average 90.76923076923077) internal successors, (1180), 13 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 07:59:34,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 07:59:34,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 190 [2023-08-04 07:59:34,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 08:00:12,202 INFO L124 PetriNetUnfolderBase]: 185156/229907 cut-off events. [2023-08-04 08:00:12,202 INFO L125 PetriNetUnfolderBase]: For 18902733/18902733 co-relation queries the response was YES. [2023-08-04 08:00:15,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2105214 conditions, 229907 events. 185156/229907 cut-off events. For 18902733/18902733 co-relation queries the response was YES. Maximal size of possible extension queue 3472. Compared 1188572 event pairs, 12600 based on Foata normal form. 4004/233906 useless extension candidates. Maximal degree in co-relation 2103966. Up to 70178 conditions per place. [2023-08-04 08:00:16,730 INFO L140 encePairwiseOnDemand]: 187/190 looper letters, 2517 selfloop transitions, 427 changer transitions 0/2946 dead transitions. [2023-08-04 08:00:16,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 2946 transitions, 45593 flow [2023-08-04 08:00:16,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-04 08:00:16,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-04 08:00:16,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1397 transitions. [2023-08-04 08:00:16,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.565587044534413 [2023-08-04 08:00:16,732 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1397 transitions. [2023-08-04 08:00:16,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1397 transitions. [2023-08-04 08:00:16,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 08:00:16,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1397 transitions. [2023-08-04 08:00:16,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.46153846153847) internal successors, (1397), 13 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 08:00:16,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 190.0) internal successors, (2660), 14 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 08:00:16,737 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 190.0) internal successors, (2660), 14 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 08:00:16,737 INFO L175 Difference]: Start difference. First operand has 234 places, 273 transitions, 3636 flow. Second operand 13 states and 1397 transitions. [2023-08-04 08:00:16,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 2946 transitions, 45593 flow [2023-08-04 08:11:18,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 2946 transitions, 38247 flow, removed 2208 selfloop flow, removed 27 redundant places. [2023-08-04 08:11:18,757 INFO L231 Difference]: Finished difference. Result has 219 places, 652 transitions, 7676 flow [2023-08-04 08:11:18,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=2966, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7676, PETRI_PLACES=219, PETRI_TRANSITIONS=652} [2023-08-04 08:11:18,757 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 185 predicate places. [2023-08-04 08:11:18,758 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 652 transitions, 7676 flow [2023-08-04 08:11:18,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 90.76923076923077) internal successors, (1180), 13 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 08:11:18,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 08:11:18,758 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 08:11:18,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-04 08:11:18,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-04 08:11:18,964 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 08:11:18,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 08:11:18,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1782308564, now seen corresponding path program 1 times [2023-08-04 08:11:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 08:11:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597378853] [2023-08-04 08:11:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 08:11:18,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 08:11:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 08:11:19,125 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 94 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-04 08:11:19,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 08:11:19,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597378853] [2023-08-04 08:11:19,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597378853] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 08:11:19,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35476154] [2023-08-04 08:11:19,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 08:11:19,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 08:11:19,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 08:11:19,127 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 08:11:19,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-04 08:11:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 08:11:19,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-04 08:11:19,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 08:11:19,275 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-04 08:11:19,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-04 08:11:19,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35476154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 08:11:19,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-04 08:11:19,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2023-08-04 08:11:19,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754629090] [2023-08-04 08:11:19,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 08:11:19,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-04 08:11:19,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 08:11:19,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-04 08:11:19,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2023-08-04 08:11:19,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 190 [2023-08-04 08:11:19,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 652 transitions, 7676 flow. Second operand has 13 states, 13 states have (on average 90.6923076923077) internal successors, (1179), 13 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 08:11:19,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 08:11:19,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 190 [2023-08-04 08:11:19,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-04 08:12:05,652 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-04 08:12:05,652 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-04 08:12:06,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-04 08:12:06,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-08-04 08:12:08,470 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-08-04 08:12:08,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-04 08:12:08,471 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-04 08:12:08,471 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 08:12:08,471 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT (1/2) [2023-08-04 08:12:08,472 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-04 08:12:08,472 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-04 08:12:08,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 08:12:08 BasicIcfg [2023-08-04 08:12:08,475 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-04 08:12:08,476 INFO L158 Benchmark]: Toolchain (without parser) took 828228.93ms. Allocated memory was 364.9MB in the beginning and 15.5GB in the end (delta: 15.2GB). Free memory was 315.0MB in the beginning and 10.3GB in the end (delta: -10.0GB). Peak memory consumption was 11.5GB. Max. memory is 16.0GB. [2023-08-04 08:12:08,476 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 364.9MB. Free memory is still 318.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-04 08:12:08,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.17ms. Allocated memory is still 364.9MB. Free memory was 315.0MB in the beginning and 295.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-04 08:12:08,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.73ms. Allocated memory is still 364.9MB. Free memory was 295.4MB in the beginning and 293.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 08:12:08,476 INFO L158 Benchmark]: Boogie Preprocessor took 39.93ms. Allocated memory is still 364.9MB. Free memory was 293.2MB in the beginning and 291.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 08:12:08,477 INFO L158 Benchmark]: RCFGBuilder took 394.45ms. Allocated memory is still 364.9MB. Free memory was 291.9MB in the beginning and 278.6MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-04 08:12:08,477 INFO L158 Benchmark]: TraceAbstraction took 827352.02ms. Allocated memory was 364.9MB in the beginning and 15.5GB in the end (delta: 15.2GB). Free memory was 277.9MB in the beginning and 10.3GB in the end (delta: -10.1GB). Peak memory consumption was 11.4GB. Max. memory is 16.0GB. [2023-08-04 08:12:08,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 364.9MB. Free memory is still 318.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 380.17ms. Allocated memory is still 364.9MB. Free memory was 315.0MB in the beginning and 295.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.73ms. Allocated memory is still 364.9MB. Free memory was 295.4MB in the beginning and 293.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.93ms. Allocated memory is still 364.9MB. Free memory was 293.2MB in the beginning and 291.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 394.45ms. Allocated memory is still 364.9MB. Free memory was 291.9MB in the beginning and 278.6MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 827352.02ms. Allocated memory was 364.9MB in the beginning and 15.5GB in the end (delta: 15.2GB). Free memory was 277.9MB in the beginning and 10.3GB in the end (delta: -10.1GB). Peak memory consumption was 11.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 78 PlacesBefore, 22 PlacesAfterwards, 80 TransitionsBefore, 20 TransitionsAfterwards, 1694 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 70 TotalNumberOfCompositions, 1481 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1302, independent: 1275, independent conditional: 0, independent unconditional: 1275, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 895, independent: 881, independent conditional: 0, independent unconditional: 881, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1302, independent: 394, independent conditional: 0, independent unconditional: 394, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 895, unknown conditional: 0, unknown unconditional: 895] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 78 PlacesBefore, 22 PlacesAfterwards, 80 TransitionsBefore, 20 TransitionsAfterwards, 1694 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 70 TotalNumberOfCompositions, 1505 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1315, independent: 1288, independent conditional: 0, independent unconditional: 1288, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 890, independent: 876, independent conditional: 0, independent unconditional: 876, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1315, independent: 412, independent conditional: 0, independent unconditional: 412, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 890, unknown conditional: 0, unknown unconditional: 890] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 102 PlacesBefore, 34 PlacesAfterwards, 104 TransitionsBefore, 30 TransitionsAfterwards, 4444 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 6 ChoiceCompositions, 86 TotalNumberOfCompositions, 3916 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3495, independent: 3465, independent conditional: 0, independent unconditional: 3465, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2282, independent: 2264, independent conditional: 0, independent unconditional: 2264, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3495, independent: 1201, independent conditional: 0, independent unconditional: 1201, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 2282, unknown conditional: 0, unknown unconditional: 2282] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 94 locations, 3 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: 3.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 1 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4/8 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 114 locations, 3 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: 822.2s, OverallIterations: 15, TraceHistogramMax: 11, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 813.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6223 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6115 mSDsluCounter, 407 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 389 mSDsCounter, 733 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5569 IncrementalHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 733 mSolverCounterUnsat, 18 mSDtfsCounter, 5569 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 727 GetRequests, 423 SyntacticMatches, 24 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3625 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7676occurred in iteration=14, InterpolantAutomatonStates: 203, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 686 NumberOfCodeBlocks, 686 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 834 ConstructedInterpolants, 0 QuantifiedInterpolants, 2560 SizeOfPredicates, 46 NumberOfNonLiveVariables, 2132 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 34 InterpolantComputations, 8 PerfectInterpolantSequences, 668/1113 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 94 locations, 3 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: 1.6s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !ENTRY org.eclipse.osgi 4 0 2023-08-04 08:12:08.494 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bc3b347d/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438)