/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 TOGETHER -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_thin002_pso.oepc_pso.opt_tso.oepc_tso.opt_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 18:56:32,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 18:56:32,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 18:56:32,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 18:56:32,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 18:56:32,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 18:56:32,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 18:56:32,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 18:56:32,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 18:56:32,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 18:56:32,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 18:56:32,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 18:56:32,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 18:56:32,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 18:56:32,697 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 18:56:32,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 18:56:32,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 18:56:32,697 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 18:56:32,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 18:56:32,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 18:56:32,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 18:56:32,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 18:56:32,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 18:56:32,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 18:56:32,700 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 18:56:32,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 18:56:32,700 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 18:56:32,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 18:56:32,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 18:56:32,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 18:56:32,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 18:56:32,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 18:56:32,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 18:56:32,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 18:56:32,703 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 18:56:32,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 18:56:32,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 18:56:32,703 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 18:56:32,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 18:56:32,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 18:56:32,703 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 18:56:32,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 18:56:32,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 18:56:32,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 18:56:32,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 18:56:32,960 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 18:56:32,960 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 18:56:32,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_thin002_pso.oepc_pso.opt_tso.oepc_tso.opt_bound2.i [2023-08-03 18:56:34,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 18:56:34,371 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 18:56:34,371 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_thin002_pso.oepc_pso.opt_tso.oepc_tso.opt_bound2.i [2023-08-03 18:56:34,392 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e572d2f37/ec6101b8bad647cabd4627164011b7de/FLAG8e4427566 [2023-08-03 18:56:34,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e572d2f37/ec6101b8bad647cabd4627164011b7de [2023-08-03 18:56:34,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 18:56:34,418 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 18:56:34,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 18:56:34,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 18:56:34,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 18:56:34,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64124d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34, skipping insertion in model container [2023-08-03 18:56:34,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,478 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 18:56:34,629 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-wmm_thin002_pso.oepc_pso.opt_tso.oepc_tso.opt_bound2.i[975,988] [2023-08-03 18:56:34,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 18:56:34,798 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 18:56:34,808 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-wmm_thin002_pso.oepc_pso.opt_tso.oepc_tso.opt_bound2.i[975,988] [2023-08-03 18:56:34,816 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 18:56:34,817 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 18:56:34,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 18:56:34,858 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 18:56:34,859 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 18:56:34,864 INFO L206 MainTranslator]: Completed translation [2023-08-03 18:56:34,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34 WrapperNode [2023-08-03 18:56:34,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 18:56:34,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 18:56:34,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 18:56:34,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 18:56:34,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,904 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2023-08-03 18:56:34,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 18:56:34,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 18:56:34,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 18:56:34,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 18:56:34,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,937 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 18:56:34,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 18:56:34,940 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 18:56:34,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 18:56:34,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (1/1) ... [2023-08-03 18:56:34,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 18:56:34,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 18:56:34,969 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) [2023-08-03 18:56:34,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-03 18:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 18:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 18:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 18:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 18:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 18:56:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 18:56:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 18:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 18:56:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 18:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-03 18:56:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-03 18:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-03 18:56:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-03 18:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 18:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 18:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 18:56:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 18:56:35,002 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 18:56:35,112 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 18:56:35,113 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 18:56:35,288 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 18:56:35,301 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 18:56:35,301 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-03 18:56:35,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 06:56:35 BoogieIcfgContainer [2023-08-03 18:56:35,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 18:56:35,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 18:56:35,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 18:56:35,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 18:56:35,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 06:56:34" (1/3) ... [2023-08-03 18:56:35,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412e61de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 06:56:35, skipping insertion in model container [2023-08-03 18:56:35,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:56:34" (2/3) ... [2023-08-03 18:56:35,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412e61de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 06:56:35, skipping insertion in model container [2023-08-03 18:56:35,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 06:56:35" (3/3) ... [2023-08-03 18:56:35,312 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_thin002_pso.oepc_pso.opt_tso.oepc_tso.opt_bound2.i [2023-08-03 18:56:35,320 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 18:56:35,328 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 18:56:35,328 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 18:56:35,328 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 18:56:35,415 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 18:56:35,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 132 transitions, 284 flow [2023-08-03 18:56:35,696 INFO L124 PetriNetUnfolderBase]: 62/873 cut-off events. [2023-08-03 18:56:35,696 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 18:56:35,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 923 conditions, 873 events. 62/873 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5406 event pairs, 0 based on Foata normal form. 0/765 useless extension candidates. Maximal degree in co-relation 518. Up to 32 conditions per place. [2023-08-03 18:56:35,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 132 transitions, 284 flow [2023-08-03 18:56:35,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 118 transitions, 256 flow [2023-08-03 18:56:35,712 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 18:56:35,724 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 118 transitions, 256 flow [2023-08-03 18:56:35,728 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 118 transitions, 256 flow [2023-08-03 18:56:35,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 118 transitions, 256 flow [2023-08-03 18:56:35,792 INFO L124 PetriNetUnfolderBase]: 46/649 cut-off events. [2023-08-03 18:56:35,792 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 18:56:35,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 649 events. 46/649 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3657 event pairs, 0 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 406. Up to 32 conditions per place. [2023-08-03 18:56:35,803 INFO L119 LiptonReduction]: Number of co-enabled transitions 2760 [2023-08-03 18:56:38,124 INFO L134 LiptonReduction]: Checked pairs total: 5189 [2023-08-03 18:56:38,124 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-08-03 18:56:38,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 18:56:38,141 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;@f9abb9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 18:56:38,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-03 18:56:38,145 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 18:56:38,145 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-08-03 18:56:38,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 18:56:38,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:56:38,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-03 18:56:38,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 18:56:38,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:56:38,151 INFO L85 PathProgramCache]: Analyzing trace with hash 648069358, now seen corresponding path program 1 times [2023-08-03 18:56:38,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:56:38,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471961560] [2023-08-03 18:56:38,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:56:38,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:56:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:56:38,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 18:56:38,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:56:38,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471961560] [2023-08-03 18:56:38,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471961560] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:56:38,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 18:56:38,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 18:56:38,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302916215] [2023-08-03 18:56:38,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:56:38,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 18:56:38,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:56:38,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 18:56:38,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 18:56:38,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 225 [2023-08-03 18:56:38,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:56:38,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:56:38,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 225 [2023-08-03 18:56:38,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 18:56:38,834 INFO L124 PetriNetUnfolderBase]: 2144/3602 cut-off events. [2023-08-03 18:56:38,834 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-03 18:56:38,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7058 conditions, 3602 events. 2144/3602 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 22680 event pairs, 1422 based on Foata normal form. 0/3323 useless extension candidates. Maximal degree in co-relation 7038. Up to 3228 conditions per place. [2023-08-03 18:56:38,860 INFO L140 encePairwiseOnDemand]: 221/225 looper letters, 27 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-03 18:56:38,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 152 flow [2023-08-03 18:56:38,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 18:56:38,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 18:56:38,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-08-03 18:56:38,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5659259259259259 [2023-08-03 18:56:38,878 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-08-03 18:56:38,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-08-03 18:56:38,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 18:56:38,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-08-03 18:56:38,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:56:38,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:56:38,894 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:56:38,896 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 90 flow. Second operand 3 states and 382 transitions. [2023-08-03 18:56:38,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 152 flow [2023-08-03 18:56:38,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 18:56:38,901 INFO L231 Difference]: Finished difference. Result has 46 places, 34 transitions, 96 flow [2023-08-03 18:56:38,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2023-08-03 18:56:38,906 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2023-08-03 18:56:38,906 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 96 flow [2023-08-03 18:56:38,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:56:38,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:56:38,906 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 18:56:38,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 18:56:38,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 18:56:38,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:56:38,914 INFO L85 PathProgramCache]: Analyzing trace with hash 642087479, now seen corresponding path program 1 times [2023-08-03 18:56:38,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:56:38,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557481294] [2023-08-03 18:56:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:56:38,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:56:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 18:56:38,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 18:56:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 18:56:38,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 18:56:38,974 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 18:56:38,975 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-08-03 18:56:38,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-03 18:56:38,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-03 18:56:38,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-03 18:56:38,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-03 18:56:38,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 18:56:38,977 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-03 18:56:38,979 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 18:56:38,979 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 18:56:39,002 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 18:56:39,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 160 transitions, 368 flow [2023-08-03 18:56:39,448 INFO L124 PetriNetUnfolderBase]: 282/4088 cut-off events. [2023-08-03 18:56:39,448 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-03 18:56:39,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4377 conditions, 4088 events. 282/4088 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 39088 event pairs, 0 based on Foata normal form. 0/3605 useless extension candidates. Maximal degree in co-relation 2964. Up to 162 conditions per place. [2023-08-03 18:56:39,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 160 transitions, 368 flow [2023-08-03 18:56:39,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 146 transitions, 340 flow [2023-08-03 18:56:39,478 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 18:56:39,478 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 146 transitions, 340 flow [2023-08-03 18:56:39,478 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 146 transitions, 340 flow [2023-08-03 18:56:39,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 146 transitions, 340 flow [2023-08-03 18:56:39,736 INFO L124 PetriNetUnfolderBase]: 201/2954 cut-off events. [2023-08-03 18:56:39,736 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-03 18:56:39,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3243 conditions, 2954 events. 201/2954 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 26124 event pairs, 0 based on Foata normal form. 0/2633 useless extension candidates. Maximal degree in co-relation 2208. Up to 162 conditions per place. [2023-08-03 18:56:39,798 INFO L119 LiptonReduction]: Number of co-enabled transitions 6864 [2023-08-03 18:56:41,890 INFO L134 LiptonReduction]: Checked pairs total: 14614 [2023-08-03 18:56:41,890 INFO L136 LiptonReduction]: Total number of compositions: 98 [2023-08-03 18:56:41,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 18:56:41,893 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;@f9abb9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 18:56:41,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-03 18:56:41,895 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 18:56:41,896 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-08-03 18:56:41,896 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 18:56:41,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:56:41,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-03 18:56:41,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 18:56:41,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:56:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash 524697076, now seen corresponding path program 1 times [2023-08-03 18:56:41,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:56:41,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322842114] [2023-08-03 18:56:41,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:56:41,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:56:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:56:41,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 18:56:41,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:56:41,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322842114] [2023-08-03 18:56:41,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322842114] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:56:41,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 18:56:41,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 18:56:41,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419770645] [2023-08-03 18:56:41,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:56:41,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 18:56:41,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:56:41,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 18:56:41,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 18:56:41,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 258 [2023-08-03 18:56:41,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 54 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 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) [2023-08-03 18:56:41,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:56:41,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 258 [2023-08-03 18:56:41,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 18:57:34,859 INFO L124 PetriNetUnfolderBase]: 576290/776916 cut-off events. [2023-08-03 18:57:34,860 INFO L125 PetriNetUnfolderBase]: For 23604/23604 co-relation queries the response was YES. [2023-08-03 18:57:37,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1521163 conditions, 776916 events. 576290/776916 cut-off events. For 23604/23604 co-relation queries the response was YES. Maximal size of possible extension queue 18387. Compared 6130414 event pairs, 485484 based on Foata normal form. 0/740564 useless extension candidates. Maximal degree in co-relation 446510. Up to 712500 conditions per place. [2023-08-03 18:57:40,426 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 40 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2023-08-03 18:57:40,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 58 transitions, 248 flow [2023-08-03 18:57:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 18:57:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 18:57:40,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-08-03 18:57:40,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2023-08-03 18:57:40,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-08-03 18:57:40,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-08-03 18:57:40,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 18:57:40,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-08-03 18:57:40,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:57:40,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:57:40,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:57:40,433 INFO L175 Difference]: Start difference. First operand has 71 places, 54 transitions, 156 flow. Second operand 3 states and 466 transitions. [2023-08-03 18:57:40,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 58 transitions, 248 flow [2023-08-03 18:57:40,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 58 transitions, 240 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-03 18:57:40,472 INFO L231 Difference]: Finished difference. Result has 74 places, 55 transitions, 160 flow [2023-08-03 18:57:40,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=74, PETRI_TRANSITIONS=55} [2023-08-03 18:57:40,473 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 3 predicate places. [2023-08-03 18:57:40,474 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 55 transitions, 160 flow [2023-08-03 18:57:40,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 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) [2023-08-03 18:57:40,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:57:40,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 18:57:40,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 18:57:40,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 18:57:40,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:57:40,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1316082359, now seen corresponding path program 1 times [2023-08-03 18:57:40,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:57:40,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71566127] [2023-08-03 18:57:40,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:57:40,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:57:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:57:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 18:57:40,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:57:40,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71566127] [2023-08-03 18:57:40,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71566127] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 18:57:40,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709333656] [2023-08-03 18:57:40,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:57:40,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 18:57:40,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 18:57:40,526 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) [2023-08-03 18:57:40,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-03 18:57:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:57:40,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-03 18:57:40,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 18:57:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-03 18:57:40,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 18:57:40,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709333656] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:57:40,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 18:57:40,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-03 18:57:40,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902938851] [2023-08-03 18:57:40,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:57:40,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 18:57:40,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:57:40,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 18:57:40,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-03 18:57:40,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 258 [2023-08-03 18:57:40,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 55 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:57:40,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:57:40,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 258 [2023-08-03 18:57:40,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 18:58:30,350 INFO L124 PetriNetUnfolderBase]: 543278/728000 cut-off events. [2023-08-03 18:58:30,350 INFO L125 PetriNetUnfolderBase]: For 17703/17703 co-relation queries the response was YES. [2023-08-03 18:58:32,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1422906 conditions, 728000 events. 543278/728000 cut-off events. For 17703/17703 co-relation queries the response was YES. Maximal size of possible extension queue 17974. Compared 5637495 event pairs, 459424 based on Foata normal form. 0/694051 useless extension candidates. Maximal degree in co-relation 1422867. Up to 668923 conditions per place. [2023-08-03 18:58:35,251 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 45 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2023-08-03 18:58:35,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 63 transitions, 270 flow [2023-08-03 18:58:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 18:58:35,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 18:58:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2023-08-03 18:58:35,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6072351421188631 [2023-08-03 18:58:35,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2023-08-03 18:58:35,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2023-08-03 18:58:35,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 18:58:35,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2023-08-03 18:58:35,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:58:35,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:58:35,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:58:35,257 INFO L175 Difference]: Start difference. First operand has 74 places, 55 transitions, 160 flow. Second operand 3 states and 470 transitions. [2023-08-03 18:58:35,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 63 transitions, 270 flow [2023-08-03 18:58:35,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 63 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 18:58:35,266 INFO L231 Difference]: Finished difference. Result has 76 places, 56 transitions, 170 flow [2023-08-03 18:58:35,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=76, PETRI_TRANSITIONS=56} [2023-08-03 18:58:35,267 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 5 predicate places. [2023-08-03 18:58:35,267 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 56 transitions, 170 flow [2023-08-03 18:58:35,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:58:35,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:58:35,268 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-03 18:58:35,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-03 18:58:35,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 18:58:35,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 18:58:35,474 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:58:35,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1682683861, now seen corresponding path program 1 times [2023-08-03 18:58:35,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:58:35,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580673232] [2023-08-03 18:58:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:58:35,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:58:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:58:35,531 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 18:58:35,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:58:35,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580673232] [2023-08-03 18:58:35,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580673232] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 18:58:35,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309940786] [2023-08-03 18:58:35,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:58:35,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 18:58:35,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 18:58:35,534 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) [2023-08-03 18:58:35,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-03 18:58:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:58:35,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 18:58:35,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 18:58:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 18:58:35,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 18:58:35,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309940786] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:58:35,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 18:58:35,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2023-08-03 18:58:35,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346281652] [2023-08-03 18:58:35,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:58:35,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 18:58:35,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:58:35,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 18:58:35,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-03 18:58:35,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 258 [2023-08-03 18:58:35,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 56 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:58:35,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:58:35,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 258 [2023-08-03 18:58:35,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 18:59:25,900 INFO L124 PetriNetUnfolderBase]: 543266/727983 cut-off events. [2023-08-03 18:59:25,900 INFO L125 PetriNetUnfolderBase]: For 17991/17991 co-relation queries the response was YES. [2023-08-03 18:59:27,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1423199 conditions, 727983 events. 543266/727983 cut-off events. For 17991/17991 co-relation queries the response was YES. Maximal size of possible extension queue 17946. Compared 5624033 event pairs, 396552 based on Foata normal form. 9/694187 useless extension candidates. Maximal degree in co-relation 418498. Up to 669001 conditions per place. [2023-08-03 18:59:30,444 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 44 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2023-08-03 18:59:30,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 63 transitions, 283 flow [2023-08-03 18:59:30,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 18:59:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 18:59:30,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 748 transitions. [2023-08-03 18:59:30,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.57984496124031 [2023-08-03 18:59:30,446 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 748 transitions. [2023-08-03 18:59:30,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 748 transitions. [2023-08-03 18:59:30,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 18:59:30,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 748 transitions. [2023-08-03 18:59:30,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 149.6) internal successors, (748), 5 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:59:30,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:59:30,452 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:59:30,452 INFO L175 Difference]: Start difference. First operand has 76 places, 56 transitions, 170 flow. Second operand 5 states and 748 transitions. [2023-08-03 18:59:30,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 63 transitions, 283 flow [2023-08-03 18:59:30,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 63 transitions, 279 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-03 18:59:30,459 INFO L231 Difference]: Finished difference. Result has 79 places, 56 transitions, 186 flow [2023-08-03 18:59:30,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=79, PETRI_TRANSITIONS=56} [2023-08-03 18:59:30,460 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 8 predicate places. [2023-08-03 18:59:30,460 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 56 transitions, 186 flow [2023-08-03 18:59:30,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:59:30,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:59:30,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 18:59:30,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-03 18:59:30,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 18:59:30,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 18:59:30,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:59:30,668 INFO L85 PathProgramCache]: Analyzing trace with hash -30638567, now seen corresponding path program 1 times [2023-08-03 18:59:30,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:59:30,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051122197] [2023-08-03 18:59:30,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:59:30,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:59:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:59:30,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-03 18:59:30,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:59:30,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051122197] [2023-08-03 18:59:30,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051122197] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 18:59:30,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839351844] [2023-08-03 18:59:30,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:59:30,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 18:59:30,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 18:59:30,728 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) [2023-08-03 18:59:30,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-03 18:59:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:59:30,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-03 18:59:30,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 18:59:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 18:59:30,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 18:59:30,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839351844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:59:30,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 18:59:30,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-03 18:59:30,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813003291] [2023-08-03 18:59:30,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:59:30,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 18:59:30,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:59:30,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 18:59:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-03 18:59:30,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 258 [2023-08-03 18:59:30,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 56 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 18:59:30,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:59:30,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 258 [2023-08-03 18:59:30,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:00:18,440 INFO L124 PetriNetUnfolderBase]: 512834/681860 cut-off events. [2023-08-03 19:00:18,440 INFO L125 PetriNetUnfolderBase]: For 15577/15577 co-relation queries the response was YES. [2023-08-03 19:00:20,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338010 conditions, 681860 events. 512834/681860 cut-off events. For 15577/15577 co-relation queries the response was YES. Maximal size of possible extension queue 17741. Compared 5189923 event pairs, 434258 based on Foata normal form. 0/654931 useless extension candidates. Maximal degree in co-relation 394508. Up to 626984 conditions per place. [2023-08-03 19:00:23,368 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 51 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2023-08-03 19:00:23,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 68 transitions, 316 flow [2023-08-03 19:00:23,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:00:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:00:23,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2023-08-03 19:00:23,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6124031007751938 [2023-08-03 19:00:23,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2023-08-03 19:00:23,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2023-08-03 19:00:23,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:00:23,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2023-08-03 19:00:23,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:00:23,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:00:23,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:00:23,374 INFO L175 Difference]: Start difference. First operand has 79 places, 56 transitions, 186 flow. Second operand 3 states and 474 transitions. [2023-08-03 19:00:23,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 68 transitions, 316 flow [2023-08-03 19:00:23,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 68 transitions, 309 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-03 19:00:23,377 INFO L231 Difference]: Finished difference. Result has 80 places, 57 transitions, 191 flow [2023-08-03 19:00:23,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=80, PETRI_TRANSITIONS=57} [2023-08-03 19:00:23,378 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 9 predicate places. [2023-08-03 19:00:23,378 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 57 transitions, 191 flow [2023-08-03 19:00:23,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:00:23,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:00:23,378 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:00:23,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-03 19:00:23,586 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 [2023-08-03 19:00:23,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:00:23,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:00:23,587 INFO L85 PathProgramCache]: Analyzing trace with hash 410699266, now seen corresponding path program 1 times [2023-08-03 19:00:23,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:00:23,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114551900] [2023-08-03 19:00:23,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:00:23,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:00:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:00:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-03 19:00:23,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:00:23,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114551900] [2023-08-03 19:00:23,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114551900] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:00:23,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663057617] [2023-08-03 19:00:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:00:23,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:00:23,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:00:23,665 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) [2023-08-03 19:00:23,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-03 19:00:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:00:23,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-03 19:00:23,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:00:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-03 19:00:23,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:00:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-03 19:00:23,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663057617] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:00:23,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:00:23,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2023-08-03 19:00:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099768767] [2023-08-03 19:00:23,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:00:23,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 19:00:23,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:00:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 19:00:23,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-03 19:00:23,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 258 [2023-08-03 19:00:23,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 57 transitions, 191 flow. Second operand has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:00:23,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:00:23,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 258 [2023-08-03 19:00:23,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:01:01,881 INFO L124 PetriNetUnfolderBase]: 399196/524864 cut-off events. [2023-08-03 19:01:01,881 INFO L125 PetriNetUnfolderBase]: For 13377/13377 co-relation queries the response was YES. [2023-08-03 19:01:03,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034583 conditions, 524864 events. 399196/524864 cut-off events. For 13377/13377 co-relation queries the response was YES. Maximal size of possible extension queue 13877. Compared 3771329 event pairs, 282654 based on Foata normal form. 3/507235 useless extension candidates. Maximal degree in co-relation 364261. Up to 486586 conditions per place. [2023-08-03 19:01:05,826 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 45 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2023-08-03 19:01:05,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 63 transitions, 295 flow [2023-08-03 19:01:05,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 19:01:05,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 19:01:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 607 transitions. [2023-08-03 19:01:05,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5881782945736435 [2023-08-03 19:01:05,828 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 607 transitions. [2023-08-03 19:01:05,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 607 transitions. [2023-08-03 19:01:05,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:01:05,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 607 transitions. [2023-08-03 19:01:05,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 151.75) internal successors, (607), 4 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:05,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:05,833 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:05,833 INFO L175 Difference]: Start difference. First operand has 80 places, 57 transitions, 191 flow. Second operand 4 states and 607 transitions. [2023-08-03 19:01:05,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 63 transitions, 295 flow [2023-08-03 19:01:05,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 63 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:01:05,837 INFO L231 Difference]: Finished difference. Result has 82 places, 56 transitions, 187 flow [2023-08-03 19:01:05,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=187, PETRI_PLACES=82, PETRI_TRANSITIONS=56} [2023-08-03 19:01:05,838 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 11 predicate places. [2023-08-03 19:01:05,838 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 56 transitions, 187 flow [2023-08-03 19:01:05,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:05,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:01:05,838 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:01:05,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-03 19:01:06,043 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 [2023-08-03 19:01:06,043 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:01:06,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:01:06,044 INFO L85 PathProgramCache]: Analyzing trace with hash 290409636, now seen corresponding path program 1 times [2023-08-03 19:01:06,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:01:06,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757109294] [2023-08-03 19:01:06,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:01:06,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:01:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:01:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-03 19:01:06,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:01:06,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757109294] [2023-08-03 19:01:06,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757109294] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:01:06,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117912468] [2023-08-03 19:01:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:01:06,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:01:06,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:01:06,107 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) [2023-08-03 19:01:06,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-03 19:01:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:01:06,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 19:01:06,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:01:06,235 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-03 19:01:06,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 19:01:06,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117912468] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:01:06,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 19:01:06,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2023-08-03 19:01:06,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307363028] [2023-08-03 19:01:06,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:01:06,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 19:01:06,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:01:06,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 19:01:06,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-03 19:01:06,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 258 [2023-08-03 19:01:06,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 56 transitions, 187 flow. Second operand has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:06,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:01:06,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 258 [2023-08-03 19:01:06,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:01:47,875 INFO L124 PetriNetUnfolderBase]: 398980/524419 cut-off events. [2023-08-03 19:01:47,876 INFO L125 PetriNetUnfolderBase]: For 12886/12886 co-relation queries the response was YES. [2023-08-03 19:01:49,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033503 conditions, 524419 events. 398980/524419 cut-off events. For 12886/12886 co-relation queries the response was YES. Maximal size of possible extension queue 13877. Compared 3766785 event pairs, 180814 based on Foata normal form. 81/506895 useless extension candidates. Maximal degree in co-relation 363881. Up to 485757 conditions per place. [2023-08-03 19:01:51,748 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 57 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2023-08-03 19:01:51,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 75 transitions, 349 flow [2023-08-03 19:01:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 19:01:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 19:01:51,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 760 transitions. [2023-08-03 19:01:51,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5891472868217055 [2023-08-03 19:01:51,750 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 760 transitions. [2023-08-03 19:01:51,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 760 transitions. [2023-08-03 19:01:51,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:01:51,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 760 transitions. [2023-08-03 19:01:51,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.0) internal successors, (760), 5 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) [2023-08-03 19:01:51,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:51,754 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:51,754 INFO L175 Difference]: Start difference. First operand has 82 places, 56 transitions, 187 flow. Second operand 5 states and 760 transitions. [2023-08-03 19:01:51,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 75 transitions, 349 flow [2023-08-03 19:01:51,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 75 transitions, 342 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-03 19:01:51,762 INFO L231 Difference]: Finished difference. Result has 83 places, 56 transitions, 199 flow [2023-08-03 19:01:51,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=83, PETRI_TRANSITIONS=56} [2023-08-03 19:01:51,763 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 12 predicate places. [2023-08-03 19:01:51,763 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 56 transitions, 199 flow [2023-08-03 19:01:51,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:51,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:01:51,764 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:01:51,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-03 19:01:51,969 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 [2023-08-03 19:01:51,969 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:01:51,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:01:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1277824176, now seen corresponding path program 1 times [2023-08-03 19:01:51,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:01:51,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955285037] [2023-08-03 19:01:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:01:51,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:01:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:01:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-03 19:01:52,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:01:52,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955285037] [2023-08-03 19:01:52,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955285037] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:01:52,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773449430] [2023-08-03 19:01:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:01:52,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:01:52,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:01:52,034 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) [2023-08-03 19:01:52,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-03 19:01:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:01:52,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-03 19:01:52,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:01:52,146 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-03 19:01:52,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 19:01:52,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773449430] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:01:52,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 19:01:52,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-08-03 19:01:52,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619546986] [2023-08-03 19:01:52,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:01:52,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:01:52,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:01:52,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:01:52,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-03 19:01:52,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 258 [2023-08-03 19:01:52,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 56 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:01:52,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:01:52,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 258 [2023-08-03 19:01:52,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:02:33,391 INFO L124 PetriNetUnfolderBase]: 389476/507184 cut-off events. [2023-08-03 19:02:33,391 INFO L125 PetriNetUnfolderBase]: For 8110/8110 co-relation queries the response was YES. [2023-08-03 19:02:35,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004529 conditions, 507184 events. 389476/507184 cut-off events. For 8110/8110 co-relation queries the response was YES. Maximal size of possible extension queue 13501. Compared 3577345 event pairs, 316468 based on Foata normal form. 0/491523 useless extension candidates. Maximal degree in co-relation 353648. Up to 443983 conditions per place. [2023-08-03 19:02:37,767 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 56 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2023-08-03 19:02:37,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 72 transitions, 347 flow [2023-08-03 19:02:37,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:02:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:02:37,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 478 transitions. [2023-08-03 19:02:37,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6175710594315246 [2023-08-03 19:02:37,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 478 transitions. [2023-08-03 19:02:37,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 478 transitions. [2023-08-03 19:02:37,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:02:37,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 478 transitions. [2023-08-03 19:02:37,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:02:37,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:02:37,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:02:37,772 INFO L175 Difference]: Start difference. First operand has 83 places, 56 transitions, 199 flow. Second operand 3 states and 478 transitions. [2023-08-03 19:02:37,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 72 transitions, 347 flow [2023-08-03 19:02:37,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 72 transitions, 340 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-03 19:02:37,787 INFO L231 Difference]: Finished difference. Result has 84 places, 57 transitions, 204 flow [2023-08-03 19:02:37,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=84, PETRI_TRANSITIONS=57} [2023-08-03 19:02:37,788 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 13 predicate places. [2023-08-03 19:02:37,788 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 57 transitions, 204 flow [2023-08-03 19:02:37,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:02:37,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:02:37,789 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:02:37,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-03 19:02:37,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:02:37,994 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:02:37,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:02:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash 983309987, now seen corresponding path program 1 times [2023-08-03 19:02:37,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:02:37,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19479481] [2023-08-03 19:02:37,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:02:37,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:02:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:02:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-08-03 19:02:38,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:02:38,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19479481] [2023-08-03 19:02:38,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19479481] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:02:38,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411139038] [2023-08-03 19:02:38,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:02:38,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:02:38,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:02:38,049 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) [2023-08-03 19:02:38,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-03 19:02:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:02:38,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-03 19:02:38,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:02:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-08-03 19:02:38,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:02:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-08-03 19:02:38,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411139038] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:02:38,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:02:38,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-08-03 19:02:38,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34245546] [2023-08-03 19:02:38,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:02:38,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 19:02:38,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:02:38,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 19:02:38,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-03 19:02:38,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 258 [2023-08-03 19:02:38,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 57 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:02:38,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:02:38,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 258 [2023-08-03 19:02:38,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:03:09,028 INFO L124 PetriNetUnfolderBase]: 302806/392848 cut-off events. [2023-08-03 19:03:09,028 INFO L125 PetriNetUnfolderBase]: For 32992/32992 co-relation queries the response was YES. [2023-08-03 19:03:11,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803866 conditions, 392848 events. 302806/392848 cut-off events. For 32992/32992 co-relation queries the response was YES. Maximal size of possible extension queue 11241. Compared 2670132 event pairs, 217912 based on Foata normal form. 27/392550 useless extension candidates. Maximal degree in co-relation 282068. Up to 365929 conditions per place. [2023-08-03 19:03:13,461 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 54 selfloop transitions, 3 changer transitions 0/71 dead transitions. [2023-08-03 19:03:13,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 71 transitions, 342 flow [2023-08-03 19:03:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 19:03:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 19:03:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 615 transitions. [2023-08-03 19:03:13,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5959302325581395 [2023-08-03 19:03:13,481 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 615 transitions. [2023-08-03 19:03:13,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 615 transitions. [2023-08-03 19:03:13,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:03:13,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 615 transitions. [2023-08-03 19:03:13,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 153.75) internal successors, (615), 4 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:13,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:13,498 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:13,499 INFO L175 Difference]: Start difference. First operand has 84 places, 57 transitions, 204 flow. Second operand 4 states and 615 transitions. [2023-08-03 19:03:13,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 71 transitions, 342 flow [2023-08-03 19:03:13,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 71 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:03:13,639 INFO L231 Difference]: Finished difference. Result has 86 places, 56 transitions, 200 flow [2023-08-03 19:03:13,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=86, PETRI_TRANSITIONS=56} [2023-08-03 19:03:13,639 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 15 predicate places. [2023-08-03 19:03:13,640 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 56 transitions, 200 flow [2023-08-03 19:03:13,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:13,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:03:13,640 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:03:13,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-03 19:03:13,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:03:13,841 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:03:13,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:03:13,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1674783904, now seen corresponding path program 1 times [2023-08-03 19:03:13,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:03:13,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627469672] [2023-08-03 19:03:13,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:03:13,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:03:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:03:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-03 19:03:13,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:03:13,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627469672] [2023-08-03 19:03:13,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627469672] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:03:13,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144271042] [2023-08-03 19:03:13,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:03:13,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:03:13,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:03:13,903 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) [2023-08-03 19:03:13,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-03 19:03:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:03:13,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 19:03:13,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:03:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-03 19:03:14,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 19:03:14,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144271042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:03:14,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 19:03:14,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2023-08-03 19:03:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301504294] [2023-08-03 19:03:14,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:03:14,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 19:03:14,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:03:14,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 19:03:14,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-03 19:03:14,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 258 [2023-08-03 19:03:14,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 56 transitions, 200 flow. Second operand has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:14,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:03:14,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 258 [2023-08-03 19:03:14,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:03:40,421 INFO L124 PetriNetUnfolderBase]: 299890/387871 cut-off events. [2023-08-03 19:03:40,421 INFO L125 PetriNetUnfolderBase]: For 28603/28603 co-relation queries the response was YES. [2023-08-03 19:03:41,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792202 conditions, 387871 events. 299890/387871 cut-off events. For 28603/28603 co-relation queries the response was YES. Maximal size of possible extension queue 11238. Compared 2603656 event pairs, 60832 based on Foata normal form. 729/388518 useless extension candidates. Maximal degree in co-relation 278018. Up to 355185 conditions per place. [2023-08-03 19:03:43,459 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 70 selfloop transitions, 4 changer transitions 0/87 dead transitions. [2023-08-03 19:03:43,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 87 transitions, 412 flow [2023-08-03 19:03:43,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 19:03:43,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 19:03:43,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 772 transitions. [2023-08-03 19:03:43,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5984496124031008 [2023-08-03 19:03:43,462 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 772 transitions. [2023-08-03 19:03:43,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 772 transitions. [2023-08-03 19:03:43,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:03:43,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 772 transitions. [2023-08-03 19:03:43,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.4) internal successors, (772), 5 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:43,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:43,466 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:43,466 INFO L175 Difference]: Start difference. First operand has 86 places, 56 transitions, 200 flow. Second operand 5 states and 772 transitions. [2023-08-03 19:03:43,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 87 transitions, 412 flow [2023-08-03 19:03:43,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 87 transitions, 405 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-03 19:03:43,615 INFO L231 Difference]: Finished difference. Result has 87 places, 56 transitions, 212 flow [2023-08-03 19:03:43,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=87, PETRI_TRANSITIONS=56} [2023-08-03 19:03:43,616 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 16 predicate places. [2023-08-03 19:03:43,616 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 56 transitions, 212 flow [2023-08-03 19:03:43,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:43,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:03:43,616 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:03:43,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-03 19:03:43,822 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,SelfDestructingSolverStorable10 [2023-08-03 19:03:43,822 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:03:43,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:03:43,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1317573723, now seen corresponding path program 1 times [2023-08-03 19:03:43,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:03:43,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636139036] [2023-08-03 19:03:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:03:43,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:03:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:03:43,879 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-08-03 19:03:43,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:03:43,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636139036] [2023-08-03 19:03:43,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636139036] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:03:43,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722450821] [2023-08-03 19:03:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:03:43,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:03:43,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:03:43,882 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) [2023-08-03 19:03:43,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-03 19:03:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:03:43,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-03 19:03:43,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:03:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-08-03 19:03:44,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:03:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-08-03 19:03:44,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722450821] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:03:44,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:03:44,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-08-03 19:03:44,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389583673] [2023-08-03 19:03:44,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:03:44,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 19:03:44,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:03:44,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 19:03:44,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-03 19:03:44,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 258 [2023-08-03 19:03:44,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 56 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:03:44,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:03:44,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 258 [2023-08-03 19:03:44,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:04:06,944 INFO L124 PetriNetUnfolderBase]: 234604/301444 cut-off events. [2023-08-03 19:04:06,944 INFO L125 PetriNetUnfolderBase]: For 26818/26818 co-relation queries the response was YES. [2023-08-03 19:04:08,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618422 conditions, 301444 events. 234604/301444 cut-off events. For 26818/26818 co-relation queries the response was YES. Maximal size of possible extension queue 9631. Compared 1963809 event pairs, 168238 based on Foata normal form. 243/301605 useless extension candidates. Maximal degree in co-relation 216743. Up to 275692 conditions per place. [2023-08-03 19:04:09,413 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 62 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2023-08-03 19:04:09,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 78 transitions, 380 flow [2023-08-03 19:04:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 19:04:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 19:04:09,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 623 transitions. [2023-08-03 19:04:09,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6036821705426356 [2023-08-03 19:04:09,415 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 623 transitions. [2023-08-03 19:04:09,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 623 transitions. [2023-08-03 19:04:09,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:04:09,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 623 transitions. [2023-08-03 19:04:09,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:09,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:09,419 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:09,419 INFO L175 Difference]: Start difference. First operand has 87 places, 56 transitions, 212 flow. Second operand 4 states and 623 transitions. [2023-08-03 19:04:09,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 78 transitions, 380 flow [2023-08-03 19:04:09,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 78 transitions, 375 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-03 19:04:09,539 INFO L231 Difference]: Finished difference. Result has 88 places, 55 transitions, 203 flow [2023-08-03 19:04:09,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=88, PETRI_TRANSITIONS=55} [2023-08-03 19:04:09,540 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 17 predicate places. [2023-08-03 19:04:09,540 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 55 transitions, 203 flow [2023-08-03 19:04:09,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:09,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:04:09,541 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:04:09,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-03 19:04:09,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:04:09,746 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:04:09,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:04:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash -329460295, now seen corresponding path program 1 times [2023-08-03 19:04:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:04:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375627161] [2023-08-03 19:04:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:04:09,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:04:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:04:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 19:04:09,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:04:09,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375627161] [2023-08-03 19:04:09,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375627161] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:04:09,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299653315] [2023-08-03 19:04:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:04:09,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:04:09,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:04:09,809 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) [2023-08-03 19:04:09,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-03 19:04:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:04:09,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-03 19:04:09,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:04:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 19:04:09,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:04:09,938 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 19:04:09,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299653315] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:04:09,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:04:09,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-08-03 19:04:09,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932566469] [2023-08-03 19:04:09,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:04:09,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 19:04:09,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:04:09,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 19:04:09,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-03 19:04:09,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 258 [2023-08-03 19:04:09,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 55 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:09,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:04:09,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 258 [2023-08-03 19:04:09,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:04:28,730 INFO L124 PetriNetUnfolderBase]: 214192/269044 cut-off events. [2023-08-03 19:04:28,730 INFO L125 PetriNetUnfolderBase]: For 21310/21310 co-relation queries the response was YES. [2023-08-03 19:04:29,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559292 conditions, 269044 events. 214192/269044 cut-off events. For 21310/21310 co-relation queries the response was YES. Maximal size of possible extension queue 8370. Compared 1604847 event pairs, 91720 based on Foata normal form. 2187/271149 useless extension candidates. Maximal degree in co-relation 196061. Up to 135913 conditions per place. [2023-08-03 19:04:30,928 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 70 selfloop transitions, 4 changer transitions 0/87 dead transitions. [2023-08-03 19:04:30,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 87 transitions, 415 flow [2023-08-03 19:04:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 19:04:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 19:04:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 632 transitions. [2023-08-03 19:04:30,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6124031007751938 [2023-08-03 19:04:30,930 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 632 transitions. [2023-08-03 19:04:30,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 632 transitions. [2023-08-03 19:04:30,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:04:30,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 632 transitions. [2023-08-03 19:04:30,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:30,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:30,933 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:30,933 INFO L175 Difference]: Start difference. First operand has 88 places, 55 transitions, 203 flow. Second operand 4 states and 632 transitions. [2023-08-03 19:04:30,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 87 transitions, 415 flow [2023-08-03 19:04:30,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 87 transitions, 409 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-03 19:04:30,978 INFO L231 Difference]: Finished difference. Result has 90 places, 56 transitions, 217 flow [2023-08-03 19:04:30,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=217, PETRI_PLACES=90, PETRI_TRANSITIONS=56} [2023-08-03 19:04:30,978 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 19 predicate places. [2023-08-03 19:04:30,978 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 56 transitions, 217 flow [2023-08-03 19:04:30,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:30,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:04:30,979 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:04:30,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-03 19:04:31,183 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,SelfDestructingSolverStorable12 [2023-08-03 19:04:31,184 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:04:31,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:04:31,184 INFO L85 PathProgramCache]: Analyzing trace with hash -67114172, now seen corresponding path program 1 times [2023-08-03 19:04:31,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:04:31,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827716983] [2023-08-03 19:04:31,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:04:31,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:04:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:04:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 19:04:31,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:04:31,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827716983] [2023-08-03 19:04:31,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827716983] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:04:31,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199135384] [2023-08-03 19:04:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:04:31,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:04:31,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:04:31,265 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) [2023-08-03 19:04:31,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-03 19:04:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:04:31,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 19:04:31,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:04:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 19:04:31,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 19:04:31,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199135384] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:04:31,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 19:04:31,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2023-08-03 19:04:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421096919] [2023-08-03 19:04:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:04:31,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 19:04:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:04:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 19:04:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-03 19:04:31,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 258 [2023-08-03 19:04:31,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 56 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:31,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:04:31,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 258 [2023-08-03 19:04:31,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:04:46,924 INFO L124 PetriNetUnfolderBase]: 179200/223117 cut-off events. [2023-08-03 19:04:46,924 INFO L125 PetriNetUnfolderBase]: For 64294/64294 co-relation queries the response was YES. [2023-08-03 19:04:47,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494817 conditions, 223117 events. 179200/223117 cut-off events. For 64294/64294 co-relation queries the response was YES. Maximal size of possible extension queue 6531. Compared 1251053 event pairs, 8614 based on Foata normal form. 6561/229596 useless extension candidates. Maximal degree in co-relation 173111. Up to 124659 conditions per place. [2023-08-03 19:04:48,514 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 82 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2023-08-03 19:04:48,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 97 transitions, 465 flow [2023-08-03 19:04:48,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 19:04:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 19:04:48,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 783 transitions. [2023-08-03 19:04:48,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6069767441860465 [2023-08-03 19:04:48,516 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 783 transitions. [2023-08-03 19:04:48,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 783 transitions. [2023-08-03 19:04:48,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:04:48,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 783 transitions. [2023-08-03 19:04:48,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 156.6) internal successors, (783), 5 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:48,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:48,520 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:48,520 INFO L175 Difference]: Start difference. First operand has 90 places, 56 transitions, 217 flow. Second operand 5 states and 783 transitions. [2023-08-03 19:04:48,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 97 transitions, 465 flow [2023-08-03 19:04:50,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 97 transitions, 458 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-03 19:04:50,083 INFO L231 Difference]: Finished difference. Result has 90 places, 54 transitions, 206 flow [2023-08-03 19:04:50,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=90, PETRI_TRANSITIONS=54} [2023-08-03 19:04:50,083 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 19 predicate places. [2023-08-03 19:04:50,084 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 54 transitions, 206 flow [2023-08-03 19:04:50,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:50,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:04:50,084 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:04:50,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-03 19:04:50,285 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,SelfDestructingSolverStorable13 [2023-08-03 19:04:50,285 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:04:50,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:04:50,286 INFO L85 PathProgramCache]: Analyzing trace with hash -67113460, now seen corresponding path program 1 times [2023-08-03 19:04:50,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:04:50,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060514452] [2023-08-03 19:04:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:04:50,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:04:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:04:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-08-03 19:04:50,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:04:50,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060514452] [2023-08-03 19:04:50,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060514452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:04:50,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:04:50,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 19:04:50,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58158218] [2023-08-03 19:04:50,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:04:50,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:04:50,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:04:50,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:04:50,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 19:04:50,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 258 [2023-08-03 19:04:50,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 54 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:04:50,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:04:50,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 258 [2023-08-03 19:04:50,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:05:08,672 INFO L124 PetriNetUnfolderBase]: 179192/231257 cut-off events. [2023-08-03 19:05:08,672 INFO L125 PetriNetUnfolderBase]: For 89801/89801 co-relation queries the response was YES. [2023-08-03 19:05:09,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498573 conditions, 231257 events. 179192/231257 cut-off events. For 89801/89801 co-relation queries the response was YES. Maximal size of possible extension queue 7216. Compared 1470871 event pairs, 137132 based on Foata normal form. 1/231238 useless extension candidates. Maximal degree in co-relation 498493. Up to 216065 conditions per place. [2023-08-03 19:05:10,760 INFO L140 encePairwiseOnDemand]: 248/258 looper letters, 64 selfloop transitions, 9 changer transitions 0/85 dead transitions. [2023-08-03 19:05:10,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 85 transitions, 507 flow [2023-08-03 19:05:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:05:10,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:05:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2023-08-03 19:05:10,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6007751937984496 [2023-08-03 19:05:10,762 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2023-08-03 19:05:10,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2023-08-03 19:05:10,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:05:10,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2023-08-03 19:05:10,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:10,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:10,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:10,765 INFO L175 Difference]: Start difference. First operand has 90 places, 54 transitions, 206 flow. Second operand 3 states and 465 transitions. [2023-08-03 19:05:10,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 85 transitions, 507 flow [2023-08-03 19:05:10,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 85 transitions, 497 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-03 19:05:10,791 INFO L231 Difference]: Finished difference. Result has 90 places, 62 transitions, 262 flow [2023-08-03 19:05:10,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=90, PETRI_TRANSITIONS=62} [2023-08-03 19:05:10,792 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 19 predicate places. [2023-08-03 19:05:10,792 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 62 transitions, 262 flow [2023-08-03 19:05:10,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:10,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:05:10,792 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:05:10,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-03 19:05:10,793 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:05:10,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:05:10,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2080517701, now seen corresponding path program 1 times [2023-08-03 19:05:10,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:05:10,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491195404] [2023-08-03 19:05:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:05:10,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:05:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:05:10,962 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-08-03 19:05:10,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:05:10,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491195404] [2023-08-03 19:05:10,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491195404] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:05:10,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:05:10,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 19:05:10,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173706226] [2023-08-03 19:05:10,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:05:10,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-03 19:05:10,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:05:10,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-03 19:05:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-03 19:05:10,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 258 [2023-08-03 19:05:10,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 62 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:10,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:05:10,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 258 [2023-08-03 19:05:10,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:05:27,835 INFO L124 PetriNetUnfolderBase]: 174826/221335 cut-off events. [2023-08-03 19:05:27,835 INFO L125 PetriNetUnfolderBase]: For 103963/103963 co-relation queries the response was YES. [2023-08-03 19:05:28,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576559 conditions, 221335 events. 174826/221335 cut-off events. For 103963/103963 co-relation queries the response was YES. Maximal size of possible extension queue 6697. Compared 1329005 event pairs, 76194 based on Foata normal form. 728/221987 useless extension candidates. Maximal degree in co-relation 368177. Up to 195955 conditions per place. [2023-08-03 19:05:29,908 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 76 selfloop transitions, 5 changer transitions 0/93 dead transitions. [2023-08-03 19:05:29,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 93 transitions, 567 flow [2023-08-03 19:05:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:05:29,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:05:29,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-08-03 19:05:29,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2023-08-03 19:05:29,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-08-03 19:05:29,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-08-03 19:05:29,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:05:29,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-08-03 19:05:29,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:29,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:29,913 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:29,913 INFO L175 Difference]: Start difference. First operand has 90 places, 62 transitions, 262 flow. Second operand 3 states and 466 transitions. [2023-08-03 19:05:29,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 93 transitions, 567 flow [2023-08-03 19:05:30,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 558 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:05:30,250 INFO L231 Difference]: Finished difference. Result has 92 places, 64 transitions, 282 flow [2023-08-03 19:05:30,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=92, PETRI_TRANSITIONS=64} [2023-08-03 19:05:30,251 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 21 predicate places. [2023-08-03 19:05:30,251 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 64 transitions, 282 flow [2023-08-03 19:05:30,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:30,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:05:30,252 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:05:30,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-03 19:05:30,252 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:05:30,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:05:30,252 INFO L85 PathProgramCache]: Analyzing trace with hash -966580355, now seen corresponding path program 1 times [2023-08-03 19:05:30,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:05:30,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39499473] [2023-08-03 19:05:30,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:05:30,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:05:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:05:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-08-03 19:05:30,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:05:30,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39499473] [2023-08-03 19:05:30,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39499473] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:05:30,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:05:30,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 19:05:30,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316682311] [2023-08-03 19:05:30,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:05:30,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:05:30,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:05:30,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:05:30,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 19:05:30,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 258 [2023-08-03 19:05:30,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 64 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 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) [2023-08-03 19:05:30,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:05:30,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 258 [2023-08-03 19:05:30,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:05:47,176 INFO L124 PetriNetUnfolderBase]: 170992/220093 cut-off events. [2023-08-03 19:05:47,176 INFO L125 PetriNetUnfolderBase]: For 143461/143461 co-relation queries the response was YES. [2023-08-03 19:05:48,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602271 conditions, 220093 events. 170992/220093 cut-off events. For 143461/143461 co-relation queries the response was YES. Maximal size of possible extension queue 6773. Compared 1379912 event pairs, 35742 based on Foata normal form. 648/220738 useless extension candidates. Maximal degree in co-relation 216512. Up to 166105 conditions per place. [2023-08-03 19:05:48,960 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 68 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2023-08-03 19:05:48,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 85 transitions, 518 flow [2023-08-03 19:05:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:05:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:05:48,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2023-08-03 19:05:48,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.624031007751938 [2023-08-03 19:05:48,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2023-08-03 19:05:48,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2023-08-03 19:05:48,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:05:48,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2023-08-03 19:05:48,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:48,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:48,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:48,964 INFO L175 Difference]: Start difference. First operand has 92 places, 64 transitions, 282 flow. Second operand 3 states and 483 transitions. [2023-08-03 19:05:48,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 85 transitions, 518 flow [2023-08-03 19:05:49,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 85 transitions, 511 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:05:49,299 INFO L231 Difference]: Finished difference. Result has 94 places, 66 transitions, 306 flow [2023-08-03 19:05:49,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=94, PETRI_TRANSITIONS=66} [2023-08-03 19:05:49,300 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 23 predicate places. [2023-08-03 19:05:49,300 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 66 transitions, 306 flow [2023-08-03 19:05:49,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 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) [2023-08-03 19:05:49,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:05:49,300 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:05:49,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-03 19:05:49,300 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 19:05:49,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:05:49,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1675642900, now seen corresponding path program 1 times [2023-08-03 19:05:49,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:05:49,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075179455] [2023-08-03 19:05:49,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:05:49,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:05:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:05:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-08-03 19:05:49,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:05:49,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075179455] [2023-08-03 19:05:49,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075179455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:05:49,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:05:49,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 19:05:49,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820853069] [2023-08-03 19:05:49,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:05:49,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-03 19:05:49,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:05:49,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-03 19:05:49,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-03 19:05:49,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 258 [2023-08-03 19:05:49,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 66 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:05:49,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:05:49,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 258 [2023-08-03 19:05:49,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-03 19:06:24,573 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 [2023-08-03 19:06:25,579 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 [2023-08-03 19:06:26,437 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-08-03 19:06:26,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-03 19:06:26,438 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-03 19:06:26,438 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-08-03 19:06:26,438 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-03 19:06:26,438 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-03 19:06:26,438 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-03 19:06:26,438 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:06:26,439 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 19:06:26,440 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 19:06:26,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 07:06:26 BasicIcfg [2023-08-03 19:06:26,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 19:06:26,442 INFO L158 Benchmark]: Toolchain (without parser) took 592024.47ms. Allocated memory was 331.4MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 290.9MB in the beginning and 12.0GB in the end (delta: -11.7GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. [2023-08-03 19:06:26,442 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 331.4MB. Free memory is still 281.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 19:06:26,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.00ms. Allocated memory is still 331.4MB. Free memory was 290.6MB in the beginning and 269.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-03 19:06:26,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.15ms. Allocated memory is still 331.4MB. Free memory was 269.6MB in the beginning and 267.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 19:06:26,443 INFO L158 Benchmark]: Boogie Preprocessor took 34.23ms. Allocated memory is still 331.4MB. Free memory was 267.5MB in the beginning and 265.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 19:06:26,443 INFO L158 Benchmark]: RCFGBuilder took 365.34ms. Allocated memory is still 331.4MB. Free memory was 265.8MB in the beginning and 249.8MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-03 19:06:26,444 INFO L158 Benchmark]: TraceAbstraction took 591135.03ms. Allocated memory was 331.4MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 249.0MB in the beginning and 12.0GB in the end (delta: -11.8GB). Peak memory consumption was 8.2GB. Max. memory is 16.0GB. [2023-08-03 19:06:26,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 331.4MB. Free memory is still 281.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 445.00ms. Allocated memory is still 331.4MB. Free memory was 290.6MB in the beginning and 269.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.15ms. Allocated memory is still 331.4MB. Free memory was 269.6MB in the beginning and 267.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.23ms. Allocated memory is still 331.4MB. Free memory was 267.5MB in the beginning and 265.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 365.34ms. Allocated memory is still 331.4MB. Free memory was 265.8MB in the beginning and 249.8MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 591135.03ms. Allocated memory was 331.4MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 249.0MB in the beginning and 12.0GB in the end (delta: -11.8GB). Peak memory consumption was 8.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 122 PlacesBefore, 43 PlacesAfterwards, 118 TransitionsBefore, 35 TransitionsAfterwards, 2760 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 4 ChoiceCompositions, 93 TotalNumberOfCompositions, 5189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3070, independent: 2953, independent conditional: 0, independent unconditional: 2953, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1423, independent: 1394, independent conditional: 0, independent unconditional: 1394, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3070, independent: 1559, independent conditional: 0, independent unconditional: 1559, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 1423, unknown conditional: 0, unknown unconditional: 1423] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 158 PlacesBefore, 71 PlacesAfterwards, 146 TransitionsBefore, 54 TransitionsAfterwards, 6864 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 98 TotalNumberOfCompositions, 14614 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6784, independent: 6585, independent conditional: 0, independent unconditional: 6585, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3337, independent: 3289, independent conditional: 0, independent unconditional: 3289, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6784, independent: 3296, independent conditional: 0, independent unconditional: 3296, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 3337, unknown conditional: 0, unknown unconditional: 3337] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 347, Positive conditional cache size: 0, Positive unconditional cache size: 347, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 801]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 807]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 805]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 803]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 155 locations, 5 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: 3.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 13 procedures, 183 locations, 5 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: 587.4s, OverallIterations: 16, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 579.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 740 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 582 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1826 IncrementalHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 38 mSDtfsCounter, 1826 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 392 GetRequests, 339 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=15, InterpolantAutomatonStates: 57, 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: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 660 NumberOfCodeBlocks, 660 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 734 ConstructedInterpolants, 0 QuantifiedInterpolants, 1886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1980 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 390/425 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