/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_safe001_tso_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 17:54:02,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 17:54:02,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 17:54:02,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 17:54:02,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 17:54:02,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 17:54:02,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 17:54:02,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 17:54:02,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 17:54:02,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 17:54:02,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 17:54:02,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 17:54:02,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 17:54:02,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 17:54:02,520 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 17:54:02,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 17:54:02,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 17:54:02,521 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 17:54:02,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 17:54:02,522 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 17:54:02,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 17:54:02,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 17:54:02,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 17:54:02,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 17:54:02,523 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 17:54:02,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 17:54:02,524 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 17:54:02,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 17:54:02,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 17:54:02,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 17:54:02,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:54:02,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 17:54:02,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 17:54:02,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 17:54:02,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 17:54:02,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 17:54:02,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 17:54:02,527 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 17:54:02,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 17:54:02,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 17:54:02,528 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 17:54:02,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 17:54:02,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 17:54:02,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 17:54:02,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 17:54:02,761 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 17:54:02,762 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 17:54:02,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_safe001_tso_bound2.i [2023-08-03 17:54:03,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 17:54:04,122 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 17:54:04,123 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_safe001_tso_bound2.i [2023-08-03 17:54:04,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d512e5db/fc80e4982cba41279bac7a128927a1db/FLAGc89cdd9e6 [2023-08-03 17:54:04,150 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d512e5db/fc80e4982cba41279bac7a128927a1db [2023-08-03 17:54:04,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 17:54:04,156 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 17:54:04,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 17:54:04,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 17:54:04,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 17:54:04,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598e1b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04, skipping insertion in model container [2023-08-03 17:54:04,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,204 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 17:54:04,335 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_safe001_tso_bound2.i[945,958] [2023-08-03 17:54:04,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:54:04,475 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 17:54:04,489 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_safe001_tso_bound2.i[945,958] [2023-08-03 17:54:04,508 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:54:04,510 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:54:04,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:54:04,579 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:54:04,580 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:54:04,586 INFO L206 MainTranslator]: Completed translation [2023-08-03 17:54:04,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04 WrapperNode [2023-08-03 17:54:04,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 17:54:04,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 17:54:04,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 17:54:04,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 17:54:04,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,650 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2023-08-03 17:54:04,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 17:54:04,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 17:54:04,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 17:54:04,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 17:54:04,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 17:54:04,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 17:54:04,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 17:54:04,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 17:54:04,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (1/1) ... [2023-08-03 17:54:04,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:54:04,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:04,734 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 17:54:04,756 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 17:54:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 17:54:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 17:54:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 17:54:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 17:54:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 17:54:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 17:54:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 17:54:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 17:54:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 17:54:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-03 17:54:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-03 17:54:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 17:54:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 17:54:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 17:54:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 17:54:04,777 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 17:54:04,933 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 17:54:04,935 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 17:54:05,125 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 17:54:05,133 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 17:54:05,133 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-03 17:54:05,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:54:05 BoogieIcfgContainer [2023-08-03 17:54:05,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 17:54:05,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 17:54:05,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 17:54:05,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 17:54:05,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 05:54:04" (1/3) ... [2023-08-03 17:54:05,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c892f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:54:05, skipping insertion in model container [2023-08-03 17:54:05,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:54:04" (2/3) ... [2023-08-03 17:54:05,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c892f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:54:05, skipping insertion in model container [2023-08-03 17:54:05,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:54:05" (3/3) ... [2023-08-03 17:54:05,149 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_safe001_tso_bound2.i [2023-08-03 17:54:05,157 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 17:54:05,166 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 17:54:05,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 17:54:05,167 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 17:54:05,230 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:54:05,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 105 transitions, 225 flow [2023-08-03 17:54:05,371 INFO L124 PetriNetUnfolderBase]: 30/413 cut-off events. [2023-08-03 17:54:05,371 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:54:05,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 413 events. 30/413 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1864 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 242. Up to 16 conditions per place. [2023-08-03 17:54:05,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 105 transitions, 225 flow [2023-08-03 17:54:05,383 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 93 transitions, 201 flow [2023-08-03 17:54:05,386 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:54:05,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 93 transitions, 201 flow [2023-08-03 17:54:05,397 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 93 transitions, 201 flow [2023-08-03 17:54:05,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 93 transitions, 201 flow [2023-08-03 17:54:05,440 INFO L124 PetriNetUnfolderBase]: 22/317 cut-off events. [2023-08-03 17:54:05,441 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:54:05,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 317 events. 22/317 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1314 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 194. Up to 16 conditions per place. [2023-08-03 17:54:05,445 INFO L119 LiptonReduction]: Number of co-enabled transitions 1692 [2023-08-03 17:54:07,249 INFO L134 LiptonReduction]: Checked pairs total: 3114 [2023-08-03 17:54:07,250 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-08-03 17:54:07,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:54:07,267 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;@3b9bedf5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:54:07,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 17:54:07,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:54:07,271 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-03 17:54:07,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:54:07,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:07,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:54:07,272 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 1 more)] === [2023-08-03 17:54:07,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:07,277 INFO L85 PathProgramCache]: Analyzing trace with hash 11406014, now seen corresponding path program 1 times [2023-08-03 17:54:07,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:07,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740931110] [2023-08-03 17:54:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:07,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:07,486 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 17:54:07,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:07,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740931110] [2023-08-03 17:54:07,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740931110] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:07,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:54:07,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:54:07,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265102578] [2023-08-03 17:54:07,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:07,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:54:07,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:07,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:54:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:54:07,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 180 [2023-08-03 17:54:07,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:07,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:07,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 180 [2023-08-03 17:54:07,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:07,661 INFO L124 PetriNetUnfolderBase]: 400/769 cut-off events. [2023-08-03 17:54:07,661 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-03 17:54:07,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1496 conditions, 769 events. 400/769 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4048 event pairs, 222 based on Foata normal form. 0/700 useless extension candidates. Maximal degree in co-relation 1477. Up to 668 conditions per place. [2023-08-03 17:54:07,668 INFO L140 encePairwiseOnDemand]: 176/180 looper letters, 21 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2023-08-03 17:54:07,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 119 flow [2023-08-03 17:54:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:54:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:54:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-08-03 17:54:07,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5574074074074075 [2023-08-03 17:54:07,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-08-03 17:54:07,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-08-03 17:54:07,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:07,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-08-03 17:54:07,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states 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 17:54:07,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states 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 17:54:07,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states 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 17:54:07,696 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 69 flow. Second operand 3 states and 301 transitions. [2023-08-03 17:54:07,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 119 flow [2023-08-03 17:54:07,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 119 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:54:07,700 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 75 flow [2023-08-03 17:54:07,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2023-08-03 17:54:07,704 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-08-03 17:54:07,705 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 75 flow [2023-08-03 17:54:07,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:07,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:07,705 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 17:54:07,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 17:54:07,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 17:54:07,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1928426826, now seen corresponding path program 1 times [2023-08-03 17:54:07,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:07,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476019390] [2023-08-03 17:54:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:07,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:54:07,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:54:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:54:07,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:54:07,755 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:54:07,756 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-08-03 17:54:07,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-08-03 17:54:07,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-03 17:54:07,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-03 17:54:07,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 17:54:07,759 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-03 17:54:07,761 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 17:54:07,762 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 17:54:07,789 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:54:07,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 288 flow [2023-08-03 17:54:07,927 INFO L124 PetriNetUnfolderBase]: 93/1303 cut-off events. [2023-08-03 17:54:07,928 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:54:07,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 1303 events. 93/1303 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8914 event pairs, 0 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 944. Up to 54 conditions per place. [2023-08-03 17:54:07,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 126 transitions, 288 flow [2023-08-03 17:54:07,939 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 114 transitions, 264 flow [2023-08-03 17:54:07,939 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:54:07,940 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 114 transitions, 264 flow [2023-08-03 17:54:07,940 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 114 transitions, 264 flow [2023-08-03 17:54:07,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 114 transitions, 264 flow [2023-08-03 17:54:08,035 INFO L124 PetriNetUnfolderBase]: 66/979 cut-off events. [2023-08-03 17:54:08,036 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:54:08,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 979 events. 66/979 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6155 event pairs, 0 based on Foata normal form. 0/874 useless extension candidates. Maximal degree in co-relation 728. Up to 54 conditions per place. [2023-08-03 17:54:08,055 INFO L119 LiptonReduction]: Number of co-enabled transitions 4140 [2023-08-03 17:54:09,813 INFO L134 LiptonReduction]: Checked pairs total: 8643 [2023-08-03 17:54:09,814 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-08-03 17:54:09,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:54:09,817 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;@3b9bedf5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:54:09,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 17:54:09,819 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:54:09,819 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-03 17:54:09,819 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:54:09,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:09,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:54:09,819 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 1 more)] === [2023-08-03 17:54:09,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:09,820 INFO L85 PathProgramCache]: Analyzing trace with hash 18428673, now seen corresponding path program 1 times [2023-08-03 17:54:09,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:09,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435842887] [2023-08-03 17:54:09,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:09,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:09,907 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 17:54:09,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:09,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435842887] [2023-08-03 17:54:09,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435842887] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:09,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:54:09,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:54:09,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103013311] [2023-08-03 17:54:09,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:09,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:54:09,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:09,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:54:09,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:54:09,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 207 [2023-08-03 17:54:09,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:09,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:09,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 207 [2023-08-03 17:54:09,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:14,223 INFO L124 PetriNetUnfolderBase]: 33046/48452 cut-off events. [2023-08-03 17:54:14,223 INFO L125 PetriNetUnfolderBase]: For 1788/1788 co-relation queries the response was YES. [2023-08-03 17:54:14,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94425 conditions, 48452 events. 33046/48452 cut-off events. For 1788/1788 co-relation queries the response was YES. Maximal size of possible extension queue 1683. Compared 348039 event pairs, 26064 based on Foata normal form. 0/45611 useless extension candidates. Maximal degree in co-relation 26814. Up to 43520 conditions per place. [2023-08-03 17:54:14,780 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 31 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-08-03 17:54:14,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 45 transitions, 192 flow [2023-08-03 17:54:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:54:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:54:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 365 transitions. [2023-08-03 17:54:14,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5877616747181964 [2023-08-03 17:54:14,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 365 transitions. [2023-08-03 17:54:14,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 365 transitions. [2023-08-03 17:54:14,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:14,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 365 transitions. [2023-08-03 17:54:14,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:14,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:54:14,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:54:14,793 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 120 flow. Second operand 3 states and 365 transitions. [2023-08-03 17:54:14,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 45 transitions, 192 flow [2023-08-03 17:54:14,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 186 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-03 17:54:14,801 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 124 flow [2023-08-03 17:54:14,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2023-08-03 17:54:14,802 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-08-03 17:54:14,802 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 124 flow [2023-08-03 17:54:14,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:14,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:14,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:54:14,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 17:54:14,803 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 1 more)] === [2023-08-03 17:54:14,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:14,804 INFO L85 PathProgramCache]: Analyzing trace with hash -838876238, now seen corresponding path program 1 times [2023-08-03 17:54:14,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:14,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5085081] [2023-08-03 17:54:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:14,895 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 17:54:14,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:14,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5085081] [2023-08-03 17:54:14,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5085081] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:54:14,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853459019] [2023-08-03 17:54:14,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:14,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:54:14,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:14,909 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 17:54:14,931 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 17:54:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:14,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-03 17:54:14,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:54:15,020 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 17:54:15,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 17:54:15,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853459019] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:15,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 17:54:15,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-03 17:54:15,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052857438] [2023-08-03 17:54:15,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:15,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:54:15,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:15,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:54:15,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-03 17:54:15,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 207 [2023-08-03 17:54:15,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states 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 17:54:15,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:15,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 207 [2023-08-03 17:54:15,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:18,183 INFO L124 PetriNetUnfolderBase]: 31406/45488 cut-off events. [2023-08-03 17:54:18,184 INFO L125 PetriNetUnfolderBase]: For 1287/1287 co-relation queries the response was YES. [2023-08-03 17:54:18,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88840 conditions, 45488 events. 31406/45488 cut-off events. For 1287/1287 co-relation queries the response was YES. Maximal size of possible extension queue 1638. Compared 320583 event pairs, 24928 based on Foata normal form. 0/43256 useless extension candidates. Maximal degree in co-relation 88803. Up to 40987 conditions per place. [2023-08-03 17:54:18,508 INFO L140 encePairwiseOnDemand]: 204/207 looper letters, 36 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2023-08-03 17:54:18,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 50 transitions, 216 flow [2023-08-03 17:54:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:54:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:54:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-08-03 17:54:18,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2023-08-03 17:54:18,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-08-03 17:54:18,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-08-03 17:54:18,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:18,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-08-03 17:54:18,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states 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 17:54:18,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:54:18,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:54:18,514 INFO L175 Difference]: Start difference. First operand has 57 places, 42 transitions, 124 flow. Second operand 3 states and 368 transitions. [2023-08-03 17:54:18,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 50 transitions, 216 flow [2023-08-03 17:54:18,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:54:18,517 INFO L231 Difference]: Finished difference. Result has 59 places, 43 transitions, 134 flow [2023-08-03 17:54:18,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2023-08-03 17:54:18,520 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 5 predicate places. [2023-08-03 17:54:18,520 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 43 transitions, 134 flow [2023-08-03 17:54:18,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states 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 17:54:18,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:18,521 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-03 17:54:18,536 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 17:54:18,730 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 17:54:18,731 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 17:54:18,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:18,731 INFO L85 PathProgramCache]: Analyzing trace with hash 932192591, now seen corresponding path program 1 times [2023-08-03 17:54:18,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:18,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797428488] [2023-08-03 17:54:18,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:18,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:18,816 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 17:54:18,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:18,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797428488] [2023-08-03 17:54:18,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797428488] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:54:18,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406876030] [2023-08-03 17:54:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:18,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:54:18,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:18,822 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 17:54:18,856 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 17:54:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:18,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 17:54:18,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:54:18,944 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 17:54:18,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 17:54:18,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406876030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:18,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 17:54:18,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2023-08-03 17:54:18,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177265233] [2023-08-03 17:54:18,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:18,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 17:54:18,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:18,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 17:54:18,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-03 17:54:18,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 207 [2023-08-03 17:54:18,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 43 transitions, 134 flow. Second operand has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 17:54:18,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:18,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 207 [2023-08-03 17:54:18,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:21,822 INFO L124 PetriNetUnfolderBase]: 31394/45327 cut-off events. [2023-08-03 17:54:21,823 INFO L125 PetriNetUnfolderBase]: For 1431/1431 co-relation queries the response was YES. [2023-08-03 17:54:21,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88989 conditions, 45327 events. 31394/45327 cut-off events. For 1431/1431 co-relation queries the response was YES. Maximal size of possible extension queue 1644. Compared 316241 event pairs, 20088 based on Foata normal form. 9/43392 useless extension candidates. Maximal degree in co-relation 25474. Up to 41065 conditions per place. [2023-08-03 17:54:22,167 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 35 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2023-08-03 17:54:22,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 229 flow [2023-08-03 17:54:22,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 17:54:22,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 17:54:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 584 transitions. [2023-08-03 17:54:22,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5642512077294686 [2023-08-03 17:54:22,169 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 584 transitions. [2023-08-03 17:54:22,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 584 transitions. [2023-08-03 17:54:22,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:22,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 584 transitions. [2023-08-03 17:54:22,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.8) internal successors, (584), 5 states have internal predecessors, (584), 0 states have call successors, (0), 0 states 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 17:54:22,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 207.0) internal successors, (1242), 6 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states 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 17:54:22,174 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 207.0) internal successors, (1242), 6 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states 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 17:54:22,174 INFO L175 Difference]: Start difference. First operand has 59 places, 43 transitions, 134 flow. Second operand 5 states and 584 transitions. [2023-08-03 17:54:22,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 229 flow [2023-08-03 17:54:22,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 50 transitions, 225 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-03 17:54:22,177 INFO L231 Difference]: Finished difference. Result has 62 places, 43 transitions, 150 flow [2023-08-03 17:54:22,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=150, PETRI_PLACES=62, PETRI_TRANSITIONS=43} [2023-08-03 17:54:22,178 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 8 predicate places. [2023-08-03 17:54:22,179 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 43 transitions, 150 flow [2023-08-03 17:54:22,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 17:54:22,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:22,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:54:22,186 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 17:54:22,383 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 17:54:22,384 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 1 more)] === [2023-08-03 17:54:22,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:22,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1202817082, now seen corresponding path program 1 times [2023-08-03 17:54:22,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:22,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011445486] [2023-08-03 17:54:22,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:22,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:22,431 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 17:54:22,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:22,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011445486] [2023-08-03 17:54:22,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011445486] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:54:22,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458057963] [2023-08-03 17:54:22,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:22,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:54:22,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:22,434 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 17:54:22,452 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 17:54:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:22,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-03 17:54:22,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:54:22,541 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 17:54:22,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 17:54:22,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458057963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:22,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 17:54:22,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-03 17:54:22,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085075399] [2023-08-03 17:54:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:22,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:54:22,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:22,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:54:22,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-03 17:54:22,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 207 [2023-08-03 17:54:22,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 43 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states 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 17:54:22,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:22,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 207 [2023-08-03 17:54:22,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:25,404 INFO L124 PetriNetUnfolderBase]: 30722/43796 cut-off events. [2023-08-03 17:54:25,404 INFO L125 PetriNetUnfolderBase]: For 889/889 co-relation queries the response was YES. [2023-08-03 17:54:25,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86504 conditions, 43796 events. 30722/43796 cut-off events. For 889/889 co-relation queries the response was YES. Maximal size of possible extension queue 1603. Compared 300612 event pairs, 23570 based on Foata normal form. 0/42068 useless extension candidates. Maximal degree in co-relation 24644. Up to 37736 conditions per place. [2023-08-03 17:54:25,698 INFO L140 encePairwiseOnDemand]: 204/207 looper letters, 42 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-08-03 17:54:25,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 55 transitions, 262 flow [2023-08-03 17:54:25,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:54:25,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:54:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2023-08-03 17:54:25,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5990338164251208 [2023-08-03 17:54:25,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2023-08-03 17:54:25,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2023-08-03 17:54:25,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:25,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2023-08-03 17:54:25,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:25,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:54:25,705 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:54:25,705 INFO L175 Difference]: Start difference. First operand has 62 places, 43 transitions, 150 flow. Second operand 3 states and 372 transitions. [2023-08-03 17:54:25,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 55 transitions, 262 flow [2023-08-03 17:54:25,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 55 transitions, 255 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-03 17:54:25,710 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 155 flow [2023-08-03 17:54:25,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2023-08-03 17:54:25,713 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 9 predicate places. [2023-08-03 17:54:25,713 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 155 flow [2023-08-03 17:54:25,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states 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 17:54:25,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:25,713 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:54:25,721 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 17:54:25,918 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 17:54:25,918 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 17:54:25,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:25,919 INFO L85 PathProgramCache]: Analyzing trace with hash 45500035, now seen corresponding path program 1 times [2023-08-03 17:54:25,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:25,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974945013] [2023-08-03 17:54:25,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:25,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:25,979 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 17:54:25,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:25,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974945013] [2023-08-03 17:54:25,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974945013] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:54:25,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482300029] [2023-08-03 17:54:25,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:25,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:54:25,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:25,982 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 17:54:26,006 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 17:54:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:26,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-03 17:54:26,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:54:26,087 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 17:54:26,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 17:54:26,109 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 17:54:26,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482300029] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 17:54:26,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 17:54:26,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2023-08-03 17:54:26,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479297834] [2023-08-03 17:54:26,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 17:54:26,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 17:54:26,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:26,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 17:54:26,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-03 17:54:26,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 207 [2023-08-03 17:54:26,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 155 flow. Second operand has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states 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 17:54:26,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:26,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 207 [2023-08-03 17:54:26,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:28,205 INFO L124 PetriNetUnfolderBase]: 24220/34220 cut-off events. [2023-08-03 17:54:28,205 INFO L125 PetriNetUnfolderBase]: For 3657/3657 co-relation queries the response was YES. [2023-08-03 17:54:28,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70465 conditions, 34220 events. 24220/34220 cut-off events. For 3657/3657 co-relation queries the response was YES. Maximal size of possible extension queue 1295. Compared 221326 event pairs, 14814 based on Foata normal form. 3/34196 useless extension candidates. Maximal degree in co-relation 25033. Up to 31258 conditions per place. [2023-08-03 17:54:28,478 INFO L140 encePairwiseOnDemand]: 204/207 looper letters, 36 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2023-08-03 17:54:28,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 50 transitions, 241 flow [2023-08-03 17:54:28,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 17:54:28,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 17:54:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 474 transitions. [2023-08-03 17:54:28,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.572463768115942 [2023-08-03 17:54:28,484 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 474 transitions. [2023-08-03 17:54:28,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 474 transitions. [2023-08-03 17:54:28,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:28,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 474 transitions. [2023-08-03 17:54:28,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.5) internal successors, (474), 4 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 17:54:28,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:54:28,492 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:54:28,492 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 155 flow. Second operand 4 states and 474 transitions. [2023-08-03 17:54:28,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 50 transitions, 241 flow [2023-08-03 17:54:28,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 50 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:54:28,497 INFO L231 Difference]: Finished difference. Result has 65 places, 43 transitions, 151 flow [2023-08-03 17:54:28,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=151, PETRI_PLACES=65, PETRI_TRANSITIONS=43} [2023-08-03 17:54:28,499 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 11 predicate places. [2023-08-03 17:54:28,499 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 151 flow [2023-08-03 17:54:28,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states 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 17:54:28,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:28,500 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:54:28,508 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 17:54:28,704 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 17:54:28,705 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 17:54:28,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:28,705 INFO L85 PathProgramCache]: Analyzing trace with hash 418342757, now seen corresponding path program 1 times [2023-08-03 17:54:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:28,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345557994] [2023-08-03 17:54:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:28,789 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 17:54:28,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:28,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345557994] [2023-08-03 17:54:28,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345557994] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:54:28,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905014310] [2023-08-03 17:54:28,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:28,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:54:28,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:28,791 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 17:54:28,797 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 17:54:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:28,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 17:54:28,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:54:28,897 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 17:54:28,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 17:54:28,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905014310] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:28,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 17:54:28,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2023-08-03 17:54:28,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741814701] [2023-08-03 17:54:28,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:28,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 17:54:28,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:28,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 17:54:28,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-03 17:54:28,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 207 [2023-08-03 17:54:28,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states 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 17:54:28,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:28,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 207 [2023-08-03 17:54:28,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:31,110 INFO L124 PetriNetUnfolderBase]: 24004/33775 cut-off events. [2023-08-03 17:54:31,110 INFO L125 PetriNetUnfolderBase]: For 3166/3166 co-relation queries the response was YES. [2023-08-03 17:54:31,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69385 conditions, 33775 events. 24004/33775 cut-off events. For 3166/3166 co-relation queries the response was YES. Maximal size of possible extension queue 1295. Compared 216986 event pairs, 6718 based on Foata normal form. 81/33856 useless extension candidates. Maximal degree in co-relation 24653. Up to 30429 conditions per place. [2023-08-03 17:54:31,289 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 48 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2023-08-03 17:54:31,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 295 flow [2023-08-03 17:54:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 17:54:31,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 17:54:31,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 596 transitions. [2023-08-03 17:54:31,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5758454106280193 [2023-08-03 17:54:31,292 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 596 transitions. [2023-08-03 17:54:31,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 596 transitions. [2023-08-03 17:54:31,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:31,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 596 transitions. [2023-08-03 17:54:31,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 0 states have call successors, (0), 0 states 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 17:54:31,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 207.0) internal successors, (1242), 6 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states 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 17:54:31,296 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 207.0) internal successors, (1242), 6 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states 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 17:54:31,296 INFO L175 Difference]: Start difference. First operand has 65 places, 43 transitions, 151 flow. Second operand 5 states and 596 transitions. [2023-08-03 17:54:31,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 295 flow [2023-08-03 17:54:31,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 62 transitions, 288 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-03 17:54:31,301 INFO L231 Difference]: Finished difference. Result has 66 places, 43 transitions, 163 flow [2023-08-03 17:54:31,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=66, PETRI_TRANSITIONS=43} [2023-08-03 17:54:31,301 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places. [2023-08-03 17:54:31,302 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 43 transitions, 163 flow [2023-08-03 17:54:31,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states 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 17:54:31,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:31,302 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:54:31,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-03 17:54:31,512 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 17:54:31,512 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 1 more)] === [2023-08-03 17:54:31,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:31,513 INFO L85 PathProgramCache]: Analyzing trace with hash 333910786, now seen corresponding path program 1 times [2023-08-03 17:54:31,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:31,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218751333] [2023-08-03 17:54:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:31,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:31,575 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 17:54:31,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:31,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218751333] [2023-08-03 17:54:31,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218751333] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:54:31,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930921524] [2023-08-03 17:54:31,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:31,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:54:31,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:31,577 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 17:54:31,587 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 17:54:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:31,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-03 17:54:31,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:54:31,687 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 17:54:31,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 17:54:31,700 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 17:54:31,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930921524] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 17:54:31,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 17:54:31,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-08-03 17:54:31,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189240396] [2023-08-03 17:54:31,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 17:54:31,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 17:54:31,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:31,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 17:54:31,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-03 17:54:31,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 207 [2023-08-03 17:54:31,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 43 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 0 states have call successors, (0), 0 states 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 17:54:31,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:31,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 207 [2023-08-03 17:54:31,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:33,451 INFO L124 PetriNetUnfolderBase]: 18982/26404 cut-off events. [2023-08-03 17:54:33,451 INFO L125 PetriNetUnfolderBase]: For 2971/2971 co-relation queries the response was YES. [2023-08-03 17:54:33,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54541 conditions, 26404 events. 18982/26404 cut-off events. For 2971/2971 co-relation queries the response was YES. Maximal size of possible extension queue 1160. Compared 163108 event pairs, 11848 based on Foata normal form. 27/26431 useless extension candidates. Maximal degree in co-relation 19334. Up to 23785 conditions per place. [2023-08-03 17:54:33,577 INFO L140 encePairwiseOnDemand]: 204/207 looper letters, 44 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2023-08-03 17:54:33,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 57 transitions, 279 flow [2023-08-03 17:54:33,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 17:54:33,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 17:54:33,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 482 transitions. [2023-08-03 17:54:33,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5821256038647343 [2023-08-03 17:54:33,579 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 482 transitions. [2023-08-03 17:54:33,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 482 transitions. [2023-08-03 17:54:33,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:33,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 482 transitions. [2023-08-03 17:54:33,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 0 states have call successors, (0), 0 states 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 17:54:33,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:54:33,582 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:54:33,582 INFO L175 Difference]: Start difference. First operand has 66 places, 43 transitions, 163 flow. Second operand 4 states and 482 transitions. [2023-08-03 17:54:33,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 57 transitions, 279 flow [2023-08-03 17:54:33,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 57 transitions, 274 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-03 17:54:33,586 INFO L231 Difference]: Finished difference. Result has 67 places, 42 transitions, 154 flow [2023-08-03 17:54:33,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=67, PETRI_TRANSITIONS=42} [2023-08-03 17:54:33,587 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 13 predicate places. [2023-08-03 17:54:33,587 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 154 flow [2023-08-03 17:54:33,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 0 states have call successors, (0), 0 states 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 17:54:33,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:33,588 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:54:33,593 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 17:54:33,792 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 17:54:33,792 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 17:54:33,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:33,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1150262871, now seen corresponding path program 1 times [2023-08-03 17:54:33,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:33,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601350790] [2023-08-03 17:54:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:33,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-03 17:54:33,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:33,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601350790] [2023-08-03 17:54:33,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601350790] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:54:33,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133155503] [2023-08-03 17:54:33,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:33,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:54:33,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:33,863 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 17:54:33,866 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 17:54:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:33,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-03 17:54:33,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:54:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-03 17:54:33,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 17:54:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-03 17:54:33,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133155503] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 17:54:33,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 17:54:33,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-08-03 17:54:33,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788124005] [2023-08-03 17:54:33,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 17:54:33,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 17:54:33,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:33,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 17:54:33,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-03 17:54:34,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 207 [2023-08-03 17:54:34,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 17:54:34,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:34,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 207 [2023-08-03 17:54:34,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:35,547 INFO L124 PetriNetUnfolderBase]: 17362/23452 cut-off events. [2023-08-03 17:54:35,548 INFO L125 PetriNetUnfolderBase]: For 2359/2359 co-relation queries the response was YES. [2023-08-03 17:54:35,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49267 conditions, 23452 events. 17362/23452 cut-off events. For 2359/2359 co-relation queries the response was YES. Maximal size of possible extension queue 1033. Compared 133192 event pairs, 6886 based on Foata normal form. 243/23695 useless extension candidates. Maximal degree in co-relation 17468. Up to 11794 conditions per place. [2023-08-03 17:54:35,663 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 52 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2023-08-03 17:54:35,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 314 flow [2023-08-03 17:54:35,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 17:54:35,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 17:54:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 491 transitions. [2023-08-03 17:54:35,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5929951690821256 [2023-08-03 17:54:35,665 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 491 transitions. [2023-08-03 17:54:35,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 491 transitions. [2023-08-03 17:54:35,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:35,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 491 transitions. [2023-08-03 17:54:35,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:35,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:54:35,668 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:54:35,668 INFO L175 Difference]: Start difference. First operand has 67 places, 42 transitions, 154 flow. Second operand 4 states and 491 transitions. [2023-08-03 17:54:35,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 314 flow [2023-08-03 17:54:35,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 66 transitions, 308 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-03 17:54:35,672 INFO L231 Difference]: Finished difference. Result has 69 places, 43 transitions, 168 flow [2023-08-03 17:54:35,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=69, PETRI_TRANSITIONS=43} [2023-08-03 17:54:35,673 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 15 predicate places. [2023-08-03 17:54:35,673 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 43 transitions, 168 flow [2023-08-03 17:54:35,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 17:54:35,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:35,673 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 17:54:35,681 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 17:54:35,877 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 17:54:35,878 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 17:54:35,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1076840839, now seen corresponding path program 1 times [2023-08-03 17:54:35,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:35,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120279836] [2023-08-03 17:54:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:35,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:35,963 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 17:54:35,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:35,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120279836] [2023-08-03 17:54:35,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120279836] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:54:35,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013342181] [2023-08-03 17:54:35,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:35,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:54:35,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:54:35,965 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 17:54:35,968 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 17:54:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:36,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 17:54:36,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:54:36,086 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 17:54:36,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 17:54:36,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013342181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:36,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 17:54:36,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2023-08-03 17:54:36,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892910774] [2023-08-03 17:54:36,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:36,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 17:54:36,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:36,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 17:54:36,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-03 17:54:36,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 207 [2023-08-03 17:54:36,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 43 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 112.6) internal successors, (563), 5 states have internal predecessors, (563), 0 states have call successors, (0), 0 states 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 17:54:36,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:36,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 207 [2023-08-03 17:54:36,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:37,323 INFO L124 PetriNetUnfolderBase]: 14446/19321 cut-off events. [2023-08-03 17:54:37,323 INFO L125 PetriNetUnfolderBase]: For 7135/7135 co-relation queries the response was YES. [2023-08-03 17:54:37,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44048 conditions, 19321 events. 14446/19321 cut-off events. For 7135/7135 co-relation queries the response was YES. Maximal size of possible extension queue 790. Compared 102452 event pairs, 568 based on Foata normal form. 729/20050 useless extension candidates. Maximal degree in co-relation 15566. Up to 10935 conditions per place. [2023-08-03 17:54:37,443 INFO L140 encePairwiseOnDemand]: 204/207 looper letters, 60 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2023-08-03 17:54:37,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 72 transitions, 348 flow [2023-08-03 17:54:37,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 17:54:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 17:54:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 607 transitions. [2023-08-03 17:54:37,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5864734299516908 [2023-08-03 17:54:37,445 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 607 transitions. [2023-08-03 17:54:37,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 607 transitions. [2023-08-03 17:54:37,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:37,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 607 transitions. [2023-08-03 17:54:37,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.4) internal successors, (607), 5 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 17:54:37,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 207.0) internal successors, (1242), 6 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states 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 17:54:37,449 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 207.0) internal successors, (1242), 6 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states 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 17:54:37,449 INFO L175 Difference]: Start difference. First operand has 69 places, 43 transitions, 168 flow. Second operand 5 states and 607 transitions. [2023-08-03 17:54:37,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 72 transitions, 348 flow [2023-08-03 17:54:37,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 341 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-03 17:54:37,473 INFO L231 Difference]: Finished difference. Result has 69 places, 41 transitions, 157 flow [2023-08-03 17:54:37,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=157, PETRI_PLACES=69, PETRI_TRANSITIONS=41} [2023-08-03 17:54:37,474 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 15 predicate places. [2023-08-03 17:54:37,474 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 41 transitions, 157 flow [2023-08-03 17:54:37,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.6) internal successors, (563), 5 states have internal predecessors, (563), 0 states have call successors, (0), 0 states 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 17:54:37,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:37,475 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] [2023-08-03 17:54:37,481 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 17:54:37,677 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 17:54:37,677 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 1 more)] === [2023-08-03 17:54:37,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:37,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1076840172, now seen corresponding path program 1 times [2023-08-03 17:54:37,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:37,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396800911] [2023-08-03 17:54:37,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:37,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 17:54:37,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:37,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396800911] [2023-08-03 17:54:37,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396800911] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:37,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:54:37,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:54:37,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020155770] [2023-08-03 17:54:37,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:37,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:54:37,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:37,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:54:37,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:54:37,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 207 [2023-08-03 17:54:37,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 41 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:37,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:37,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 207 [2023-08-03 17:54:37,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:54:49,199 INFO L124 PetriNetUnfolderBase]: 153072/192817 cut-off events. [2023-08-03 17:54:49,199 INFO L125 PetriNetUnfolderBase]: For 86378/86378 co-relation queries the response was YES. [2023-08-03 17:54:49,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433041 conditions, 192817 events. 153072/192817 cut-off events. For 86378/86378 co-relation queries the response was YES. Maximal size of possible extension queue 5239. Compared 1068005 event pairs, 64815 based on Foata normal form. 3953/196621 useless extension candidates. Maximal degree in co-relation 235504. Up to 96874 conditions per place. [2023-08-03 17:54:50,483 INFO L140 encePairwiseOnDemand]: 193/207 looper letters, 60 selfloop transitions, 13 changer transitions 0/76 dead transitions. [2023-08-03 17:54:50,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 76 transitions, 443 flow [2023-08-03 17:54:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:54:50,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:54:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2023-08-03 17:54:50,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5829307568438004 [2023-08-03 17:54:50,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2023-08-03 17:54:50,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2023-08-03 17:54:50,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:54:50,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2023-08-03 17:54:50,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states 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 17:54:50,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:54:50,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:54:50,488 INFO L175 Difference]: Start difference. First operand has 69 places, 41 transitions, 157 flow. Second operand 3 states and 362 transitions. [2023-08-03 17:54:50,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 76 transitions, 443 flow [2023-08-03 17:54:50,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 76 transitions, 433 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-03 17:54:50,579 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 254 flow [2023-08-03 17:54:50,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2023-08-03 17:54:50,580 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places. [2023-08-03 17:54:50,580 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 254 flow [2023-08-03 17:54:50,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:54:50,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:54:50,581 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] [2023-08-03 17:54:50,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-03 17:54:50,581 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 1 more)] === [2023-08-03 17:54:50,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:54:50,581 INFO L85 PathProgramCache]: Analyzing trace with hash 977692298, now seen corresponding path program 1 times [2023-08-03 17:54:50,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:54:50,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824387321] [2023-08-03 17:54:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:54:50,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:54:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:54:50,716 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 17:54:50,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:54:50,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824387321] [2023-08-03 17:54:50,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824387321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:54:50,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:54:50,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:54:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386825572] [2023-08-03 17:54:50,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:54:50,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-03 17:54:50,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:54:50,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-03 17:54:50,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-03 17:54:50,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 207 [2023-08-03 17:54:50,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 17:54:50,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:54:50,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 207 [2023-08-03 17:54:50,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:55:02,336 INFO L124 PetriNetUnfolderBase]: 150601/188953 cut-off events. [2023-08-03 17:55:02,337 INFO L125 PetriNetUnfolderBase]: For 148781/148781 co-relation queries the response was YES. [2023-08-03 17:55:03,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588686 conditions, 188953 events. 150601/188953 cut-off events. For 148781/148781 co-relation queries the response was YES. Maximal size of possible extension queue 5213. Compared 1041566 event pairs, 13131 based on Foata normal form. 220/189116 useless extension candidates. Maximal degree in co-relation 175131. Up to 90462 conditions per place. [2023-08-03 17:55:03,731 INFO L140 encePairwiseOnDemand]: 193/207 looper letters, 83 selfloop transitions, 21 changer transitions 0/107 dead transitions. [2023-08-03 17:55:03,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 107 transitions, 726 flow [2023-08-03 17:55:03,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 17:55:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 17:55:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 478 transitions. [2023-08-03 17:55:03,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5772946859903382 [2023-08-03 17:55:03,733 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 478 transitions. [2023-08-03 17:55:03,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 478 transitions. [2023-08-03 17:55:03,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:55:03,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 478 transitions. [2023-08-03 17:55:03,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.5) internal successors, (478), 4 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 17:55:03,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:55:03,736 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:55:03,736 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 254 flow. Second operand 4 states and 478 transitions. [2023-08-03 17:55:03,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 107 transitions, 726 flow [2023-08-03 17:55:03,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 107 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-03 17:55:03,932 INFO L231 Difference]: Finished difference. Result has 74 places, 69 transitions, 402 flow [2023-08-03 17:55:03,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=402, PETRI_PLACES=74, PETRI_TRANSITIONS=69} [2023-08-03 17:55:03,933 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 20 predicate places. [2023-08-03 17:55:03,933 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 69 transitions, 402 flow [2023-08-03 17:55:03,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 17:55:03,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:55:03,933 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] [2023-08-03 17:55:03,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-03 17:55:03,934 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 17:55:03,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:55:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash 458948502, now seen corresponding path program 1 times [2023-08-03 17:55:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:55:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438966535] [2023-08-03 17:55:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:55:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:55:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:55:04,044 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 17:55:04,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:55:04,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438966535] [2023-08-03 17:55:04,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438966535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:55:04,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:55:04,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:55:04,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943768560] [2023-08-03 17:55:04,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:55:04,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-03 17:55:04,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:55:04,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-03 17:55:04,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-03 17:55:04,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 207 [2023-08-03 17:55:04,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 69 transitions, 402 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 17:55:04,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:55:04,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 207 [2023-08-03 17:55:04,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:55:16,547 INFO L124 PetriNetUnfolderBase]: 150033/187891 cut-off events. [2023-08-03 17:55:16,547 INFO L125 PetriNetUnfolderBase]: For 285172/285172 co-relation queries the response was YES. [2023-08-03 17:55:17,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659097 conditions, 187891 events. 150033/187891 cut-off events. For 285172/285172 co-relation queries the response was YES. Maximal size of possible extension queue 5193. Compared 1027718 event pairs, 30477 based on Foata normal form. 48/187920 useless extension candidates. Maximal degree in co-relation 402683. Up to 94954 conditions per place. [2023-08-03 17:55:18,151 INFO L140 encePairwiseOnDemand]: 193/207 looper letters, 100 selfloop transitions, 37 changer transitions 0/140 dead transitions. [2023-08-03 17:55:18,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 140 transitions, 1078 flow [2023-08-03 17:55:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-03 17:55:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-03 17:55:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2023-08-03 17:55:18,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5845410628019324 [2023-08-03 17:55:18,153 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2023-08-03 17:55:18,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2023-08-03 17:55:18,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:55:18,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2023-08-03 17:55:18,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states 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 17:55:18,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:55:18,156 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 207.0) internal successors, (1035), 5 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 17:55:18,156 INFO L175 Difference]: Start difference. First operand has 74 places, 69 transitions, 402 flow. Second operand 4 states and 484 transitions. [2023-08-03 17:55:18,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 140 transitions, 1078 flow [2023-08-03 17:55:19,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 140 transitions, 1078 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:55:19,055 INFO L231 Difference]: Finished difference. Result has 80 places, 93 transitions, 744 flow [2023-08-03 17:55:19,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=744, PETRI_PLACES=80, PETRI_TRANSITIONS=93} [2023-08-03 17:55:19,055 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 26 predicate places. [2023-08-03 17:55:19,056 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 93 transitions, 744 flow [2023-08-03 17:55:19,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 17:55:19,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:55:19,056 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] [2023-08-03 17:55:19,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-03 17:55:19,056 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 1 more)] === [2023-08-03 17:55:19,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:55:19,057 INFO L85 PathProgramCache]: Analyzing trace with hash -715412137, now seen corresponding path program 1 times [2023-08-03 17:55:19,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:55:19,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627432581] [2023-08-03 17:55:19,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:55:19,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:55:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:55:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-08-03 17:55:19,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:55:19,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627432581] [2023-08-03 17:55:19,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627432581] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:55:19,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330391805] [2023-08-03 17:55:19,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:55:19,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:55:19,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:55:19,245 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 17:55:19,252 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 17:55:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:55:19,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-03 17:55:19,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:55:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-08-03 17:55:19,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 17:55:19,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330391805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:55:19,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 17:55:19,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2023-08-03 17:55:19,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469903536] [2023-08-03 17:55:19,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:55:19,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:55:19,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:55:19,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:55:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-03 17:55:19,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 207 [2023-08-03 17:55:19,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 93 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states 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 17:55:19,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:55:19,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 207 [2023-08-03 17:55:19,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:55:25,150 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([501] $Ultimate##0-->L739: Formula: (and (= |v_P1Thread2of2ForFork1_#in~arg.offset_5| v_P1Thread2of2ForFork1_~arg.offset_5) (= v_P1Thread2of2ForFork1_~arg.base_5 |v_P1Thread2of2ForFork1_#in~arg.base_5|) (= v_~x~0_27 2)) InVars {P1Thread2of2ForFork1_#in~arg.offset=|v_P1Thread2of2ForFork1_#in~arg.offset_5|, P1Thread2of2ForFork1_#in~arg.base=|v_P1Thread2of2ForFork1_#in~arg.base_5|} OutVars{P1Thread2of2ForFork1_#in~arg.offset=|v_P1Thread2of2ForFork1_#in~arg.offset_5|, P1Thread2of2ForFork1_~arg.offset=v_P1Thread2of2ForFork1_~arg.offset_5, P1Thread2of2ForFork1_#in~arg.base=|v_P1Thread2of2ForFork1_#in~arg.base_5|, ~x~0=v_~x~0_27, P1Thread2of2ForFork1_~arg.base=v_P1Thread2of2ForFork1_~arg.base_5} AuxVars[] AssignedVars[P1Thread2of2ForFork1_~arg.offset, ~x~0, P1Thread2of2ForFork1_~arg.base][71], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, 18#P0EXITtrue, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), 792#true, 15#L739true, Black: 788#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 800#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, Black: 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), 59#L781-11true, Black: 802#(<= ~x~0 0), Black: 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 97#$Ultimate##0true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:25,150 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,150 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,151 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,151 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,151 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, 18#P0EXITtrue, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, Black: 792#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), 59#L781-11true, Black: 800#true, Black: 802#(<= ~x~0 0), 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 27#$Ultimate##0true, 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:25,151 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,151 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,151 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,151 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,154 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, 18#P0EXITtrue, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, Black: 792#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 800#true, 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 27#$Ultimate##0true, 25#L786true, 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:25,154 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,154 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,154 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,155 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,155 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([501] $Ultimate##0-->L739: Formula: (and (= |v_P1Thread2of2ForFork1_#in~arg.offset_5| v_P1Thread2of2ForFork1_~arg.offset_5) (= v_P1Thread2of2ForFork1_~arg.base_5 |v_P1Thread2of2ForFork1_#in~arg.base_5|) (= v_~x~0_27 2)) InVars {P1Thread2of2ForFork1_#in~arg.offset=|v_P1Thread2of2ForFork1_#in~arg.offset_5|, P1Thread2of2ForFork1_#in~arg.base=|v_P1Thread2of2ForFork1_#in~arg.base_5|} OutVars{P1Thread2of2ForFork1_#in~arg.offset=|v_P1Thread2of2ForFork1_#in~arg.offset_5|, P1Thread2of2ForFork1_~arg.offset=v_P1Thread2of2ForFork1_~arg.offset_5, P1Thread2of2ForFork1_#in~arg.base=|v_P1Thread2of2ForFork1_#in~arg.base_5|, ~x~0=v_~x~0_27, P1Thread2of2ForFork1_~arg.base=v_P1Thread2of2ForFork1_~arg.base_5} AuxVars[] AssignedVars[P1Thread2of2ForFork1_~arg.offset, ~x~0, P1Thread2of2ForFork1_~arg.base][71], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, 18#P0EXITtrue, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), 792#true, 15#L739true, Black: 788#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 800#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, Black: 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 802#(<= ~x~0 0), Black: 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 97#$Ultimate##0true, 25#L786true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:25,155 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,155 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,155 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,155 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,198 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, 18#P0EXITtrue, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), 59#L781-11true, Black: 800#true, 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), 3#$Ultimate##0true, 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:25,198 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,198 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,198 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,198 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,198 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([489] $Ultimate##0-->L739: Formula: (and (= v_~x~0_23 2) (= v_P1Thread1of2ForFork1_~arg.base_5 |v_P1Thread1of2ForFork1_#in~arg.base_5|) (= |v_P1Thread1of2ForFork1_#in~arg.offset_5| v_P1Thread1of2ForFork1_~arg.offset_5)) InVars {P1Thread1of2ForFork1_#in~arg.offset=|v_P1Thread1of2ForFork1_#in~arg.offset_5|, P1Thread1of2ForFork1_#in~arg.base=|v_P1Thread1of2ForFork1_#in~arg.base_5|} OutVars{P1Thread1of2ForFork1_#in~arg.offset=|v_P1Thread1of2ForFork1_#in~arg.offset_5|, P1Thread1of2ForFork1_~arg.offset=v_P1Thread1of2ForFork1_~arg.offset_5, P1Thread1of2ForFork1_#in~arg.base=|v_P1Thread1of2ForFork1_#in~arg.base_5|, ~x~0=v_~x~0_23, P1Thread1of2ForFork1_~arg.base=v_P1Thread1of2ForFork1_~arg.base_5} AuxVars[] AssignedVars[P1Thread1of2ForFork1_~arg.offset, ~x~0, P1Thread1of2ForFork1_~arg.base][77], [P2Thread1of2ForFork2InUse, 18#P0EXITtrue, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 792#true, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 788#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 96#L742true, 800#true, Black: 794#(<= ~y~0 0), Black: 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 9#L739true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), 59#L781-11true, Black: 802#(<= ~x~0 0), Black: 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 97#$Ultimate##0true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:25,198 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,198 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,198 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,198 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-03 17:55:25,201 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, 18#P0EXITtrue, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 800#true, 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), 3#$Ultimate##0true, 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 25#L786true, 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:25,201 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,201 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,201 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,202 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,202 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([489] $Ultimate##0-->L739: Formula: (and (= v_~x~0_23 2) (= v_P1Thread1of2ForFork1_~arg.base_5 |v_P1Thread1of2ForFork1_#in~arg.base_5|) (= |v_P1Thread1of2ForFork1_#in~arg.offset_5| v_P1Thread1of2ForFork1_~arg.offset_5)) InVars {P1Thread1of2ForFork1_#in~arg.offset=|v_P1Thread1of2ForFork1_#in~arg.offset_5|, P1Thread1of2ForFork1_#in~arg.base=|v_P1Thread1of2ForFork1_#in~arg.base_5|} OutVars{P1Thread1of2ForFork1_#in~arg.offset=|v_P1Thread1of2ForFork1_#in~arg.offset_5|, P1Thread1of2ForFork1_~arg.offset=v_P1Thread1of2ForFork1_~arg.offset_5, P1Thread1of2ForFork1_#in~arg.base=|v_P1Thread1of2ForFork1_#in~arg.base_5|, ~x~0=v_~x~0_23, P1Thread1of2ForFork1_~arg.base=v_P1Thread1of2ForFork1_~arg.base_5} AuxVars[] AssignedVars[P1Thread1of2ForFork1_~arg.offset, ~x~0, P1Thread1of2ForFork1_~arg.base][77], [P2Thread1of2ForFork2InUse, 18#P0EXITtrue, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 792#true, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 788#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 96#L742true, 800#true, Black: 794#(<= ~y~0 0), Black: 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 9#L739true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 802#(<= ~x~0 0), Black: 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 97#$Ultimate##0true, 25#L786true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:25,202 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,202 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,202 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:25,202 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-03 17:55:28,361 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 106#P0EXITtrue, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, Black: 794#(<= ~y~0 0), 121#L727true, Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), 59#L781-11true, Black: 800#true, 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|), P1Thread2of2ForFork1InUse]) [2023-08-03 17:55:28,370 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-03 17:55:28,370 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-03 17:55:28,371 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-03 17:55:28,371 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-03 17:55:28,375 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 106#P0EXITtrue, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, Black: 794#(<= ~y~0 0), 121#L727true, Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 800#true, 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 25#L786true, 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|), P1Thread2of2ForFork1InUse]) [2023-08-03 17:55:28,375 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-03 17:55:28,375 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:28,375 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:28,375 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:28,778 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 106#P0EXITtrue, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, 121#L727true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 59#L781-11true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 800#true, Black: 802#(<= ~x~0 0), 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 116#P1EXITtrue, 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:28,778 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-03 17:55:28,778 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:28,778 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:28,778 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:29,056 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, 18#P0EXITtrue, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 106#P0EXITtrue, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), 59#L781-11true, Black: 800#true, Black: 802#(<= ~x~0 0), 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|), P1Thread2of2ForFork1InUse]) [2023-08-03 17:55:29,057 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-03 17:55:29,057 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:29,057 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:29,057 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-03 17:55:29,605 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([520] $Ultimate##0-->L754: Formula: (and (= v_P2Thread1of2ForFork2_~arg.base_5 |v_P2Thread1of2ForFork2_#in~arg.base_5|) (= |v_P2Thread1of2ForFork2_#in~arg.offset_5| v_P2Thread1of2ForFork2_~arg.offset_5) (= v_~y~0_33 v_~__unbuffered_p2_EAX~0_22)) InVars {P2Thread1of2ForFork2_#in~arg.offset=|v_P2Thread1of2ForFork2_#in~arg.offset_5|, P2Thread1of2ForFork2_#in~arg.base=|v_P2Thread1of2ForFork2_#in~arg.base_5|, ~y~0=v_~y~0_33} OutVars{P2Thread1of2ForFork2_#in~arg.offset=|v_P2Thread1of2ForFork2_#in~arg.offset_5|, P2Thread1of2ForFork2_~arg.base=v_P2Thread1of2ForFork2_~arg.base_5, P2Thread1of2ForFork2_#in~arg.base=|v_P2Thread1of2ForFork2_#in~arg.base_5|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ~y~0=v_~y~0_33, P2Thread1of2ForFork2_~arg.offset=v_P2Thread1of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread1of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread1of2ForFork2_~arg.offset][96], [P2Thread1of2ForFork2InUse, 18#P0EXITtrue, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 94#L757true, 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 808#true, Black: 800#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 38#L754true, 116#P1EXITtrue, 25#L786true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:29,606 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,606 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,606 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,606 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,672 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 106#P0EXITtrue, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, 121#L727true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 800#true, 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 116#P1EXITtrue, 25#L786true, 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:29,672 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,672 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,673 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,673 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,802 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([520] $Ultimate##0-->L754: Formula: (and (= v_P2Thread1of2ForFork2_~arg.base_5 |v_P2Thread1of2ForFork2_#in~arg.base_5|) (= |v_P2Thread1of2ForFork2_#in~arg.offset_5| v_P2Thread1of2ForFork2_~arg.offset_5) (= v_~y~0_33 v_~__unbuffered_p2_EAX~0_22)) InVars {P2Thread1of2ForFork2_#in~arg.offset=|v_P2Thread1of2ForFork2_#in~arg.offset_5|, P2Thread1of2ForFork2_#in~arg.base=|v_P2Thread1of2ForFork2_#in~arg.base_5|, ~y~0=v_~y~0_33} OutVars{P2Thread1of2ForFork2_#in~arg.offset=|v_P2Thread1of2ForFork2_#in~arg.offset_5|, P2Thread1of2ForFork2_~arg.base=v_P2Thread1of2ForFork2_~arg.base_5, P2Thread1of2ForFork2_#in~arg.base=|v_P2Thread1of2ForFork2_#in~arg.base_5|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ~y~0=v_~y~0_33, P2Thread1of2ForFork2_~arg.offset=v_P2Thread1of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread1of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread1of2ForFork2_~arg.offset][96], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 94#L757true, 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 106#P0EXITtrue, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, 121#L727true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 800#true, Black: 802#(<= ~x~0 0), 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 38#L754true, 116#P1EXITtrue, 25#L786true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:29,802 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,802 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,802 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,803 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,899 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] $Ultimate##0-->L754: Formula: (and (= v_~y~0_37 v_~__unbuffered_p2_EAX~0_24) (= v_P2Thread2of2ForFork2_~arg.base_5 |v_P2Thread2of2ForFork2_#in~arg.base_5|) (= |v_P2Thread2of2ForFork2_#in~arg.offset_5| v_P2Thread2of2ForFork2_~arg.offset_5)) InVars {P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37} OutVars{P2Thread2of2ForFork2_#in~arg.base=|v_P2Thread2of2ForFork2_#in~arg.base_5|, P2Thread2of2ForFork2_~arg.base=v_P2Thread2of2ForFork2_~arg.base_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_24, P2Thread2of2ForFork2_#in~arg.offset=|v_P2Thread2of2ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_37, P2Thread2of2ForFork2_~arg.offset=v_P2Thread2of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread2of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread2of2ForFork2_~arg.offset][120], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, 18#P0EXITtrue, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 106#P0EXITtrue, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 23#L757true, 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 800#true, 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 25#L786true, 74#L754true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|), P1Thread2of2ForFork1InUse]) [2023-08-03 17:55:29,899 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,900 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,900 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,900 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-03 17:55:29,969 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([520] $Ultimate##0-->L754: Formula: (and (= v_P2Thread1of2ForFork2_~arg.base_5 |v_P2Thread1of2ForFork2_#in~arg.base_5|) (= |v_P2Thread1of2ForFork2_#in~arg.offset_5| v_P2Thread1of2ForFork2_~arg.offset_5) (= v_~y~0_33 v_~__unbuffered_p2_EAX~0_22)) InVars {P2Thread1of2ForFork2_#in~arg.offset=|v_P2Thread1of2ForFork2_#in~arg.offset_5|, P2Thread1of2ForFork2_#in~arg.base=|v_P2Thread1of2ForFork2_#in~arg.base_5|, ~y~0=v_~y~0_33} OutVars{P2Thread1of2ForFork2_#in~arg.offset=|v_P2Thread1of2ForFork2_#in~arg.offset_5|, P2Thread1of2ForFork2_~arg.base=v_P2Thread1of2ForFork2_~arg.base_5, P2Thread1of2ForFork2_#in~arg.base=|v_P2Thread1of2ForFork2_#in~arg.base_5|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ~y~0=v_~y~0_33, P2Thread1of2ForFork2_~arg.offset=v_P2Thread1of2ForFork2_~arg.offset_5} AuxVars[] AssignedVars[P2Thread1of2ForFork2_~arg.base, ~__unbuffered_p2_EAX~0, P2Thread1of2ForFork2_~arg.offset][96], [P2Thread1of2ForFork2InUse, 18#P0EXITtrue, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, 118#L742true, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 94#L757true, 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 106#P0EXITtrue, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 786#true, 96#L742true, Black: 792#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), 808#true, Black: 800#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 802#(<= ~x~0 0), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 38#L754true, 25#L786true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:29,969 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is not cut-off event [2023-08-03 17:55:29,969 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:29,969 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:29,969 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,133 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([508] $Ultimate##0-->L724: Formula: (and (= v_P0Thread2of2ForFork0_~arg.offset_5 |v_P0Thread2of2ForFork0_#in~arg.offset_5|) (= v_~y~0_31 v_~__unbuffered_p0_EAX~0_24) (= v_P0Thread2of2ForFork0_~arg.base_5 |v_P0Thread2of2ForFork0_#in~arg.base_5|)) InVars {P0Thread2of2ForFork0_#in~arg.offset=|v_P0Thread2of2ForFork0_#in~arg.offset_5|, ~y~0=v_~y~0_31, P0Thread2of2ForFork0_#in~arg.base=|v_P0Thread2of2ForFork0_#in~arg.base_5|} OutVars{P0Thread2of2ForFork0_~arg.offset=v_P0Thread2of2ForFork0_~arg.offset_5, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_24, P0Thread2of2ForFork0_~arg.base=v_P0Thread2of2ForFork0_~arg.base_5, P0Thread2of2ForFork0_#in~arg.offset=|v_P0Thread2of2ForFork0_#in~arg.offset_5|, ~y~0=v_~y~0_31, P0Thread2of2ForFork0_#in~arg.base=|v_P0Thread2of2ForFork0_#in~arg.base_5|} AuxVars[] AssignedVars[P0Thread2of2ForFork0_~arg.offset, ~__unbuffered_p0_EAX~0, P0Thread2of2ForFork0_~arg.base][51], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 87#P2EXITtrue, 94#L757true, 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 792#true, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 788#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 96#L742true, 46#L724true, 800#true, 121#L727true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), Black: 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 802#(<= ~x~0 0), Black: 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 116#P1EXITtrue, 25#L786true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), P1Thread2of2ForFork1InUse, 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|)]) [2023-08-03 17:55:30,133 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,133 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,133 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,133 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,194 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] $Ultimate##0-->L724: Formula: (and (= v_~y~0_35 v_~__unbuffered_p0_EAX~0_26) (= v_P0Thread1of2ForFork0_~arg.base_5 |v_P0Thread1of2ForFork0_#in~arg.base_5|) (= v_P0Thread1of2ForFork0_~arg.offset_5 |v_P0Thread1of2ForFork0_#in~arg.offset_5|)) InVars {P0Thread1of2ForFork0_#in~arg.offset=|v_P0Thread1of2ForFork0_#in~arg.offset_5|, ~y~0=v_~y~0_35, P0Thread1of2ForFork0_#in~arg.base=|v_P0Thread1of2ForFork0_#in~arg.base_5|} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_26, P0Thread1of2ForFork0_#in~arg.offset=|v_P0Thread1of2ForFork0_#in~arg.offset_5|, P0Thread1of2ForFork0_~arg.base=v_P0Thread1of2ForFork0_~arg.base_5, P0Thread1of2ForFork0_~arg.offset=v_P0Thread1of2ForFork0_~arg.offset_5, ~y~0=v_~y~0_35, P0Thread1of2ForFork0_#in~arg.base=|v_P0Thread1of2ForFork0_#in~arg.base_5|} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of2ForFork0_~arg.base, P0Thread1of2ForFork0_~arg.offset][52], [P2Thread1of2ForFork2InUse, P2Thread2of2ForFork2InUse, P0Thread1of2ForFork0InUse, P0Thread2of2ForFork0InUse, Black: 139#(= 0 |ULTIMATE.start_main_~asdf~0#1|), 87#P2EXITtrue, 94#L757true, 177#(<= 2 |ULTIMATE.start_main_~asdf~0#1|), 792#true, Black: 176#(<= 1 |ULTIMATE.start_main_~asdf~0#1|), Black: 788#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 96#L742true, 800#true, Black: 794#(<= ~y~0 0), Black: 354#(<= 1 |ULTIMATE.start_main_~asdf~1#1|), Black: 795#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 808#true, 699#(<= 2 |ULTIMATE.start_main_~asdf~2#1|), Black: 802#(<= ~x~0 0), Black: 803#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p0_EAX~0 2))), 100#L727true, Black: 164#(<= |ULTIMATE.start_main_~asdf~1#1| 0), 116#P1EXITtrue, 25#L786true, Black: 546#(<= |ULTIMATE.start_main_~asdf~2#1| 1), 35#L724true, P1Thread1of2ForFork1InUse, Black: 249#(<= |ULTIMATE.start_main_~asdf~2#1| 0), 355#(<= 2 |ULTIMATE.start_main_~asdf~1#1|), P1Thread2of2ForFork1InUse]) [2023-08-03 17:55:30,194 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,194 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,194 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,194 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-03 17:55:30,428 INFO L124 PetriNetUnfolderBase]: 104379/135654 cut-off events. [2023-08-03 17:55:30,428 INFO L125 PetriNetUnfolderBase]: For 464655/499523 co-relation queries the response was YES. [2023-08-03 17:55:31,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527231 conditions, 135654 events. 104379/135654 cut-off events. For 464655/499523 co-relation queries the response was YES. Maximal size of possible extension queue 5823. Compared 846236 event pairs, 15648 based on Foata normal form. 13270/140448 useless extension candidates. Maximal degree in co-relation 359213. Up to 107930 conditions per place. [2023-08-03 17:55:32,093 INFO L140 encePairwiseOnDemand]: 199/207 looper letters, 99 selfloop transitions, 7 changer transitions 0/141 dead transitions. [2023-08-03 17:55:32,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 141 transitions, 1301 flow [2023-08-03 17:55:32,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:55:32,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:55:32,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2023-08-03 17:55:32,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.605475040257649 [2023-08-03 17:55:32,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2023-08-03 17:55:32,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2023-08-03 17:55:32,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:55:32,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2023-08-03 17:55:32,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states 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 17:55:32,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:55:32,097 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 17:55:32,098 INFO L175 Difference]: Start difference. First operand has 80 places, 93 transitions, 744 flow. Second operand 3 states and 376 transitions. [2023-08-03 17:55:32,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 141 transitions, 1301 flow [2023-08-03 17:55:32,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 141 transitions, 1301 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:55:32,553 INFO L231 Difference]: Finished difference. Result has 83 places, 99 transitions, 791 flow [2023-08-03 17:55:32,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=791, PETRI_PLACES=83, PETRI_TRANSITIONS=99} [2023-08-03 17:55:32,554 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 29 predicate places. [2023-08-03 17:55:32,554 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 99 transitions, 791 flow [2023-08-03 17:55:32,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states 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 17:55:32,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:55:32,554 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] [2023-08-03 17:55:32,559 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 17:55:32,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-03 17:55:32,758 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 1 more)] === [2023-08-03 17:55:32,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:55:32,759 INFO L85 PathProgramCache]: Analyzing trace with hash -973811488, now seen corresponding path program 1 times [2023-08-03 17:55:32,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:55:32,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975216449] [2023-08-03 17:55:32,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:55:32,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:55:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:55:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-08-03 17:55:32,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:55:32,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975216449] [2023-08-03 17:55:32,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975216449] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:55:32,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346256436] [2023-08-03 17:55:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:55:32,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:55:32,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:55:32,925 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 17:55:32,927 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 17:55:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:55:33,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-03 17:55:33,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:55:33,070 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-03 17:55:33,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 17:55:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-03 17:55:33,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346256436] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 17:55:33,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 17:55:33,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 6 [2023-08-03 17:55:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395262838] [2023-08-03 17:55:33,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 17:55:33,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-03 17:55:33,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:55:33,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-03 17:55:33,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-03 17:55:33,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 207 [2023-08-03 17:55:33,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 99 transitions, 791 flow. Second operand has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states 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 17:55:33,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:55:33,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 207 [2023-08-03 17:55:33,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:55:43,116 INFO L124 PetriNetUnfolderBase]: 94214/120052 cut-off events. [2023-08-03 17:55:43,116 INFO L125 PetriNetUnfolderBase]: For 412740/412740 co-relation queries the response was YES. [2023-08-03 17:55:43,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548992 conditions, 120052 events. 94214/120052 cut-off events. For 412740/412740 co-relation queries the response was YES. Maximal size of possible extension queue 3623. Compared 657973 event pairs, 1808 based on Foata normal form. 5046/124954 useless extension candidates. Maximal degree in co-relation 203085. Up to 36151 conditions per place. [2023-08-03 17:55:44,448 INFO L140 encePairwiseOnDemand]: 186/207 looper letters, 272 selfloop transitions, 185 changer transitions 0/460 dead transitions. [2023-08-03 17:55:44,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 460 transitions, 4503 flow [2023-08-03 17:55:44,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-03 17:55:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-03 17:55:44,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1465 transitions. [2023-08-03 17:55:44,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5444072835377183 [2023-08-03 17:55:44,452 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1465 transitions. [2023-08-03 17:55:44,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1465 transitions. [2023-08-03 17:55:44,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:55:44,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1465 transitions. [2023-08-03 17:55:44,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 112.6923076923077) internal successors, (1465), 13 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states 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 17:55:44,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 207.0) internal successors, (2898), 14 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 17:55:44,459 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 207.0) internal successors, (2898), 14 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 17:55:44,459 INFO L175 Difference]: Start difference. First operand has 83 places, 99 transitions, 791 flow. Second operand 13 states and 1465 transitions. [2023-08-03 17:55:44,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 460 transitions, 4503 flow [2023-08-03 17:55:45,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 460 transitions, 4486 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:55:45,793 INFO L231 Difference]: Finished difference. Result has 106 places, 265 transitions, 3130 flow [2023-08-03 17:55:45,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3130, PETRI_PLACES=106, PETRI_TRANSITIONS=265} [2023-08-03 17:55:45,793 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 52 predicate places. [2023-08-03 17:55:45,793 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 265 transitions, 3130 flow [2023-08-03 17:55:45,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states 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 17:55:45,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:55:45,794 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, 1, 1, 1, 1] [2023-08-03 17:55:45,801 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 17:55:45,999 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,SelfDestructingSolverStorable15 [2023-08-03 17:55:46,000 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 1 more)] === [2023-08-03 17:55:46,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:55:46,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1304293813, now seen corresponding path program 1 times [2023-08-03 17:55:46,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:55:46,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957375317] [2023-08-03 17:55:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:55:46,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:55:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:55:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-03 17:55:46,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:55:46,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957375317] [2023-08-03 17:55:46,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957375317] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 17:55:46,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029094200] [2023-08-03 17:55:46,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:55:46,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 17:55:46,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:55:46,126 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 17:55:46,135 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 17:55:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:55:46,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-03 17:55:46,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 17:55:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-08-03 17:55:46,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 17:55:46,555 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-08-03 17:55:46,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029094200] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 17:55:46,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 17:55:46,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 6] total 15 [2023-08-03 17:55:46,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425132773] [2023-08-03 17:55:46,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 17:55:46,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-08-03 17:55:46,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:55:46,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-08-03 17:55:46,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-08-03 17:55:46,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 207 [2023-08-03 17:55:46,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 265 transitions, 3130 flow. Second operand has 16 states, 16 states have (on average 96.0) internal successors, (1536), 16 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states 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 17:55:46,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:55:46,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 207 [2023-08-03 17:55:46,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:56:47,372 INFO L124 PetriNetUnfolderBase]: 419198/542253 cut-off events. [2023-08-03 17:56:47,372 INFO L125 PetriNetUnfolderBase]: For 3362445/3362445 co-relation queries the response was YES. [2023-08-03 17:56:51,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3175018 conditions, 542253 events. 419198/542253 cut-off events. For 3362445/3362445 co-relation queries the response was YES. Maximal size of possible extension queue 21439. Compared 3748850 event pairs, 2301 based on Foata normal form. 2983/545202 useless extension candidates. Maximal degree in co-relation 2327366. Up to 197014 conditions per place. [2023-08-03 17:56:53,540 INFO L140 encePairwiseOnDemand]: 186/207 looper letters, 1147 selfloop transitions, 1061 changer transitions 163/2374 dead transitions. [2023-08-03 17:56:53,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 2374 transitions, 28888 flow [2023-08-03 17:56:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-08-03 17:56:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-08-03 17:56:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 6242 transitions. [2023-08-03 17:56:53,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5482652613087395 [2023-08-03 17:56:53,553 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 6242 transitions. [2023-08-03 17:56:53,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 6242 transitions. [2023-08-03 17:56:53,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:56:53,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 6242 transitions. [2023-08-03 17:56:53,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 113.49090909090908) internal successors, (6242), 55 states have internal predecessors, (6242), 0 states have call successors, (0), 0 states 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 17:56:53,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 207.0) internal successors, (11592), 56 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states 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 17:56:53,582 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 207.0) internal successors, (11592), 56 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states 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 17:56:53,582 INFO L175 Difference]: Start difference. First operand has 106 places, 265 transitions, 3130 flow. Second operand 55 states and 6242 transitions. [2023-08-03 17:56:53,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 2374 transitions, 28888 flow