/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-context1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 05:42:48,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 05:42:48,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 05:42:48,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 05:42:48,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 05:42:48,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 05:42:48,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 05:42:48,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 05:42:48,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 05:42:48,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 05:42:48,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 05:42:48,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 05:42:48,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 05:42:48,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 05:42:48,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 05:42:48,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 05:42:48,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 05:42:48,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 05:42:48,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 05:42:48,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 05:42:48,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 05:42:48,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 05:42:48,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 05:42:48,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 05:42:48,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 05:42:48,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 05:42:48,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 05:42:48,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 05:42:48,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 05:42:48,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 05:42:48,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 05:42:48,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 05:42:48,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 05:42:48,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 05:42:48,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 05:42:48,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 05:42:48,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 05:42:48,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 05:42:48,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 05:42:48,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 05:42:48,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 05:42:48,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 05:42:48,578 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 05:42:48,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 05:42:48,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 05:42:48,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 05:42:48,580 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 05:42:48,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 05:42:48,580 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 05:42:48,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 05:42:48,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 05:42:48,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 05:42:48,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 05:42:48,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 05:42:48,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 05:42:48,581 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 05:42:48,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 05:42:48,581 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 05:42:48,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 05:42:48,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 05:42:48,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 05:42:48,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 05:42:48,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 05:42:48,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:42:48,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 05:42:48,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 05:42:48,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 05:42:48,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 05:42:48,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 05:42:48,583 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 05:42:48,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 05:42:48,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 05:42:48,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 05:42:48,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 05:42:48,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 05:42:48,894 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 05:42:48,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-context1.wvr.c [2022-12-06 05:42:49,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 05:42:50,147 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 05:42:50,147 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-context1.wvr.c [2022-12-06 05:42:50,152 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deefff6d9/bfe98a0369a94ee987240bd565456013/FLAG4a05235f4 [2022-12-06 05:42:50,164 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deefff6d9/bfe98a0369a94ee987240bd565456013 [2022-12-06 05:42:50,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 05:42:50,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 05:42:50,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 05:42:50,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 05:42:50,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 05:42:50,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e641c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50, skipping insertion in model container [2022-12-06 05:42:50,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 05:42:50,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 05:42:50,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:50,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:50,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:50,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:50,348 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-context1.wvr.c[2433,2446] [2022-12-06 05:42:50,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:42:50,372 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 05:42:50,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:50,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:50,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:50,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:50,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-context1.wvr.c[2433,2446] [2022-12-06 05:42:50,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:42:50,415 INFO L208 MainTranslator]: Completed translation [2022-12-06 05:42:50,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50 WrapperNode [2022-12-06 05:42:50,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 05:42:50,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 05:42:50,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 05:42:50,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 05:42:50,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,463 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 131 [2022-12-06 05:42:50,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 05:42:50,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 05:42:50,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 05:42:50,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 05:42:50,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,489 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 05:42:50,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 05:42:50,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 05:42:50,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 05:42:50,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (1/1) ... [2022-12-06 05:42:50,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:42:50,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:42:50,532 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) [2022-12-06 05:42:50,543 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 [2022-12-06 05:42:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 05:42:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 05:42:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 05:42:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 05:42:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 05:42:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 05:42:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 05:42:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 05:42:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 05:42:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 05:42:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 05:42:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 05:42:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 05:42:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 05:42:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 05:42:50,577 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 05:42:50,684 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 05:42:50,686 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 05:42:50,893 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 05:42:51,046 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 05:42:51,046 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-06 05:42:51,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:51 BoogieIcfgContainer [2022-12-06 05:42:51,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 05:42:51,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 05:42:51,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 05:42:51,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 05:42:51,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:42:50" (1/3) ... [2022-12-06 05:42:51,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28424c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:51, skipping insertion in model container [2022-12-06 05:42:51,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:50" (2/3) ... [2022-12-06 05:42:51,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28424c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:51, skipping insertion in model container [2022-12-06 05:42:51,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:51" (3/3) ... [2022-12-06 05:42:51,062 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2022-12-06 05:42:51,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 05:42:51,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 05:42:51,078 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 05:42:51,149 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 05:42:51,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 106 transitions, 228 flow [2022-12-06 05:42:51,248 INFO L130 PetriNetUnfolder]: 9/104 cut-off events. [2022-12-06 05:42:51,248 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:42:51,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 104 events. 9/104 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-12-06 05:42:51,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 106 transitions, 228 flow [2022-12-06 05:42:51,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 96 transitions, 204 flow [2022-12-06 05:42:51,257 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:51,283 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 96 transitions, 204 flow [2022-12-06 05:42:51,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 96 transitions, 204 flow [2022-12-06 05:42:51,340 INFO L130 PetriNetUnfolder]: 9/96 cut-off events. [2022-12-06 05:42:51,340 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:42:51,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 96 events. 9/96 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-12-06 05:42:51,342 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 96 transitions, 204 flow [2022-12-06 05:42:51,343 INFO L188 LiptonReduction]: Number of co-enabled transitions 368 [2022-12-06 05:42:55,021 INFO L203 LiptonReduction]: Total number of compositions: 81 [2022-12-06 05:42:55,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 05:42:55,040 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, 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;@1d7a231d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 05:42:55,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 05:42:55,044 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2022-12-06 05:42:55,044 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:42:55,044 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:55,044 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:42:55,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:42:55,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2145519978, now seen corresponding path program 1 times [2022-12-06 05:42:55,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:55,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696287939] [2022-12-06 05:42:55,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:55,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:55,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:55,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696287939] [2022-12-06 05:42:55,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696287939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:55,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:55,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 05:42:55,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960898860] [2022-12-06 05:42:55,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:55,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 05:42:55,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:55,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 05:42:55,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 05:42:55,376 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 05:42:55,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 42 flow. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:55,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:55,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 05:42:55,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:55,448 INFO L130 PetriNetUnfolder]: 38/71 cut-off events. [2022-12-06 05:42:55,448 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-06 05:42:55,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 71 events. 38/71 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 135 event pairs, 9 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 100. Up to 37 conditions per place. [2022-12-06 05:42:55,451 INFO L137 encePairwiseOnDemand]: 12/15 looper letters, 19 selfloop transitions, 2 changer transitions 2/23 dead transitions. [2022-12-06 05:42:55,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 23 transitions, 110 flow [2022-12-06 05:42:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 05:42:55,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 05:42:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2022-12-06 05:42:55,461 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2022-12-06 05:42:55,462 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 42 flow. Second operand 3 states and 24 transitions. [2022-12-06 05:42:55,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 23 transitions, 110 flow [2022-12-06 05:42:55,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 23 transitions, 98 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 05:42:55,467 INFO L231 Difference]: Finished difference. Result has 18 places, 16 transitions, 46 flow [2022-12-06 05:42:55,468 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=18, PETRI_TRANSITIONS=16} [2022-12-06 05:42:55,473 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, -1 predicate places. [2022-12-06 05:42:55,473 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:55,474 INFO L89 Accepts]: Start accepts. Operand has 18 places, 16 transitions, 46 flow [2022-12-06 05:42:55,476 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:55,476 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:55,476 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 16 transitions, 46 flow [2022-12-06 05:42:55,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 18 places, 16 transitions, 46 flow [2022-12-06 05:42:55,493 INFO L130 PetriNetUnfolder]: 3/18 cut-off events. [2022-12-06 05:42:55,493 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 05:42:55,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 18 events. 3/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 14. Up to 4 conditions per place. [2022-12-06 05:42:55,494 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 16 transitions, 46 flow [2022-12-06 05:42:55,494 INFO L188 LiptonReduction]: Number of co-enabled transitions 42 [2022-12-06 05:42:55,495 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:55,498 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 24 [2022-12-06 05:42:55,498 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 16 transitions, 46 flow [2022-12-06 05:42:55,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:55,498 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:55,499 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:42:55,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 05:42:55,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:42:55,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:55,502 INFO L85 PathProgramCache]: Analyzing trace with hash -799611484, now seen corresponding path program 1 times [2022-12-06 05:42:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:55,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427117240] [2022-12-06 05:42:55,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:55,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:55,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:55,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427117240] [2022-12-06 05:42:55,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427117240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:55,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:55,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 05:42:55,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494885695] [2022-12-06 05:42:55,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:55,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 05:42:55,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:55,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 05:42:55,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 05:42:55,649 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 05:42:55,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 16 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:55,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:55,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 05:42:55,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:55,700 INFO L130 PetriNetUnfolder]: 52/102 cut-off events. [2022-12-06 05:42:55,700 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-06 05:42:55,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 102 events. 52/102 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 257 event pairs, 17 based on Foata normal form. 6/91 useless extension candidates. Maximal degree in co-relation 135. Up to 74 conditions per place. [2022-12-06 05:42:55,701 INFO L137 encePairwiseOnDemand]: 12/15 looper letters, 18 selfloop transitions, 2 changer transitions 5/25 dead transitions. [2022-12-06 05:42:55,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 25 transitions, 117 flow [2022-12-06 05:42:55,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 05:42:55,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 05:42:55,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-12-06 05:42:55,703 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-06 05:42:55,703 INFO L175 Difference]: Start difference. First operand has 18 places, 16 transitions, 46 flow. Second operand 3 states and 25 transitions. [2022-12-06 05:42:55,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 25 transitions, 117 flow [2022-12-06 05:42:55,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 25 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 05:42:55,704 INFO L231 Difference]: Finished difference. Result has 20 places, 17 transitions, 56 flow [2022-12-06 05:42:55,705 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=20, PETRI_TRANSITIONS=17} [2022-12-06 05:42:55,705 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2022-12-06 05:42:55,705 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:55,705 INFO L89 Accepts]: Start accepts. Operand has 20 places, 17 transitions, 56 flow [2022-12-06 05:42:55,706 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:55,706 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:55,706 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 17 transitions, 56 flow [2022-12-06 05:42:55,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 17 transitions, 56 flow [2022-12-06 05:42:55,711 INFO L130 PetriNetUnfolder]: 4/24 cut-off events. [2022-12-06 05:42:55,711 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 05:42:55,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 24 events. 4/24 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 22. Up to 5 conditions per place. [2022-12-06 05:42:55,712 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 17 transitions, 56 flow [2022-12-06 05:42:55,712 INFO L188 LiptonReduction]: Number of co-enabled transitions 48 [2022-12-06 05:42:55,713 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:55,714 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-06 05:42:55,715 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 17 transitions, 56 flow [2022-12-06 05:42:55,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:55,715 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:55,715 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:42:55,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 05:42:55,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:42:55,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1695201957, now seen corresponding path program 1 times [2022-12-06 05:42:55,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:55,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837437431] [2022-12-06 05:42:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:55,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:42:55,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:55,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837437431] [2022-12-06 05:42:55,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837437431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:55,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:55,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 05:42:55,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939195534] [2022-12-06 05:42:55,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:55,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:42:55,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:55,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:42:55,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 05:42:55,921 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 05:42:55,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:55,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:55,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 05:42:55,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:56,005 INFO L130 PetriNetUnfolder]: 61/130 cut-off events. [2022-12-06 05:42:56,005 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-06 05:42:56,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 130 events. 61/130 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 364 event pairs, 44 based on Foata normal form. 6/134 useless extension candidates. Maximal degree in co-relation 212. Up to 103 conditions per place. [2022-12-06 05:42:56,006 INFO L137 encePairwiseOnDemand]: 11/15 looper letters, 16 selfloop transitions, 2 changer transitions 10/28 dead transitions. [2022-12-06 05:42:56,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 28 transitions, 138 flow [2022-12-06 05:42:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:42:56,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:42:56,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2022-12-06 05:42:56,008 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.45 [2022-12-06 05:42:56,008 INFO L175 Difference]: Start difference. First operand has 20 places, 17 transitions, 56 flow. Second operand 4 states and 27 transitions. [2022-12-06 05:42:56,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 28 transitions, 138 flow [2022-12-06 05:42:56,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 28 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 05:42:56,009 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 68 flow [2022-12-06 05:42:56,009 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2022-12-06 05:42:56,010 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2022-12-06 05:42:56,010 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:56,010 INFO L89 Accepts]: Start accepts. Operand has 24 places, 18 transitions, 68 flow [2022-12-06 05:42:56,011 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:56,011 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:56,011 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 18 transitions, 68 flow [2022-12-06 05:42:56,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 18 transitions, 68 flow [2022-12-06 05:42:56,015 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2022-12-06 05:42:56,015 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:42:56,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 25 events. 4/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 35. Up to 5 conditions per place. [2022-12-06 05:42:56,015 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 18 transitions, 68 flow [2022-12-06 05:42:56,016 INFO L188 LiptonReduction]: Number of co-enabled transitions 48 [2022-12-06 05:42:56,769 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:42:56,770 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 760 [2022-12-06 05:42:56,770 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 64 flow [2022-12-06 05:42:56,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:56,771 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:56,771 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:42:56,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 05:42:56,771 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:42:56,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:56,771 INFO L85 PathProgramCache]: Analyzing trace with hash -622775814, now seen corresponding path program 1 times [2022-12-06 05:42:56,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:56,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279947195] [2022-12-06 05:42:56,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:56,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:57,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:57,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279947195] [2022-12-06 05:42:57,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279947195] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:42:57,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148185492] [2022-12-06 05:42:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:57,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:42:57,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:42:57,055 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) [2022-12-06 05:42:57,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 05:42:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:57,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-06 05:42:57,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:42:57,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 05:42:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:57,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:42:57,351 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-06 05:42:57,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 13 [2022-12-06 05:42:57,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:57,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148185492] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:42:57,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:42:57,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 6 [2022-12-06 05:42:57,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387963238] [2022-12-06 05:42:57,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:42:57,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 05:42:57,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:57,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 05:42:57,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 05:42:57,375 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 05:42:57,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 64 flow. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:57,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:57,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 05:42:57,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:57,478 INFO L130 PetriNetUnfolder]: 86/164 cut-off events. [2022-12-06 05:42:57,478 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-12-06 05:42:57,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 164 events. 86/164 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 532 event pairs, 13 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 403. Up to 58 conditions per place. [2022-12-06 05:42:57,479 INFO L137 encePairwiseOnDemand]: 10/15 looper letters, 27 selfloop transitions, 6 changer transitions 9/42 dead transitions. [2022-12-06 05:42:57,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 42 transitions, 216 flow [2022-12-06 05:42:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:42:57,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:42:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-12-06 05:42:57,481 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.56 [2022-12-06 05:42:57,481 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 64 flow. Second operand 5 states and 42 transitions. [2022-12-06 05:42:57,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 42 transitions, 216 flow [2022-12-06 05:42:57,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 42 transitions, 206 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-12-06 05:42:57,482 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 91 flow [2022-12-06 05:42:57,483 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=91, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2022-12-06 05:42:57,483 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 6 predicate places. [2022-12-06 05:42:57,483 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:57,483 INFO L89 Accepts]: Start accepts. Operand has 25 places, 20 transitions, 91 flow [2022-12-06 05:42:57,484 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:57,484 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:57,485 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 20 transitions, 91 flow [2022-12-06 05:42:57,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 20 transitions, 91 flow [2022-12-06 05:42:57,490 INFO L130 PetriNetUnfolder]: 7/39 cut-off events. [2022-12-06 05:42:57,490 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-06 05:42:57,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 39 events. 7/39 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 94 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 39. Up to 9 conditions per place. [2022-12-06 05:42:57,492 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 20 transitions, 91 flow [2022-12-06 05:42:57,492 INFO L188 LiptonReduction]: Number of co-enabled transitions 66 [2022-12-06 05:42:57,493 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:57,493 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 05:42:57,493 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 91 flow [2022-12-06 05:42:57,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:57,494 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:57,494 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:42:57,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 05:42:57,700 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 [2022-12-06 05:42:57,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:42:57,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash -724110050, now seen corresponding path program 2 times [2022-12-06 05:42:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:57,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97149231] [2022-12-06 05:42:57,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:57,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:58,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:58,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97149231] [2022-12-06 05:42:58,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97149231] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:42:58,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672318392] [2022-12-06 05:42:58,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 05:42:58,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:42:58,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:42:58,050 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) [2022-12-06 05:42:58,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 05:42:58,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 05:42:58,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:42:58,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-06 05:42:58,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:42:58,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-06 05:42:58,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 05:42:58,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 05:42:58,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-06 05:42:58,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 05:42:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:58,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:42:58,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:58,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672318392] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:42:58,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:42:58,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-12-06 05:42:58,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279520880] [2022-12-06 05:42:58,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:42:58,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 05:42:58,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 05:42:58,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=133, Unknown=6, NotChecked=0, Total=182 [2022-12-06 05:42:58,416 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 05:42:58,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 91 flow. Second operand has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:58,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:58,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 05:42:58,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:58,586 INFO L130 PetriNetUnfolder]: 102/193 cut-off events. [2022-12-06 05:42:58,586 INFO L131 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2022-12-06 05:42:58,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 193 events. 102/193 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 628 event pairs, 18 based on Foata normal form. 1/193 useless extension candidates. Maximal degree in co-relation 220. Up to 64 conditions per place. [2022-12-06 05:42:58,588 INFO L137 encePairwiseOnDemand]: 11/15 looper letters, 27 selfloop transitions, 6 changer transitions 9/42 dead transitions. [2022-12-06 05:42:58,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 42 transitions, 234 flow [2022-12-06 05:42:58,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:42:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:42:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-12-06 05:42:58,590 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2022-12-06 05:42:58,590 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 91 flow. Second operand 5 states and 41 transitions. [2022-12-06 05:42:58,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 42 transitions, 234 flow [2022-12-06 05:42:58,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 42 transitions, 229 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 05:42:58,593 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 112 flow [2022-12-06 05:42:58,593 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2022-12-06 05:42:58,595 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2022-12-06 05:42:58,595 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:58,595 INFO L89 Accepts]: Start accepts. Operand has 28 places, 21 transitions, 112 flow [2022-12-06 05:42:58,597 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:58,597 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:58,597 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 21 transitions, 112 flow [2022-12-06 05:42:58,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 112 flow [2022-12-06 05:42:58,608 INFO L130 PetriNetUnfolder]: 7/42 cut-off events. [2022-12-06 05:42:58,608 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-06 05:42:58,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 42 events. 7/42 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 110 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 45. Up to 9 conditions per place. [2022-12-06 05:42:58,608 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 21 transitions, 112 flow [2022-12-06 05:42:58,609 INFO L188 LiptonReduction]: Number of co-enabled transitions 76 [2022-12-06 05:42:58,611 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:58,611 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 16 [2022-12-06 05:42:58,612 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 112 flow [2022-12-06 05:42:58,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:58,612 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:58,612 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:42:58,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 05:42:58,819 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 [2022-12-06 05:42:58,819 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:42:58,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:58,820 INFO L85 PathProgramCache]: Analyzing trace with hash 563480670, now seen corresponding path program 3 times [2022-12-06 05:42:58,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:58,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677428477] [2022-12-06 05:42:58,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:58,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:58,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:58,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677428477] [2022-12-06 05:42:58,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677428477] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:42:58,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545421375] [2022-12-06 05:42:58,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 05:42:58,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:42:58,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:42:58,892 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) [2022-12-06 05:42:58,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 05:42:58,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-06 05:42:58,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:42:58,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-06 05:42:58,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:42:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:58,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:42:59,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:42:59,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545421375] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:42:59,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:42:59,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 4 [2022-12-06 05:42:59,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428169880] [2022-12-06 05:42:59,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:42:59,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:42:59,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:59,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:42:59,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:42:59,013 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 05:42:59,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:59,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:59,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 05:42:59,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:59,089 INFO L130 PetriNetUnfolder]: 218/421 cut-off events. [2022-12-06 05:42:59,090 INFO L131 PetriNetUnfolder]: For 682/682 co-relation queries the response was YES. [2022-12-06 05:42:59,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1199 conditions, 421 events. 218/421 cut-off events. For 682/682 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1851 event pairs, 65 based on Foata normal form. 18/438 useless extension candidates. Maximal degree in co-relation 367. Up to 182 conditions per place. [2022-12-06 05:42:59,092 INFO L137 encePairwiseOnDemand]: 12/15 looper letters, 36 selfloop transitions, 9 changer transitions 0/45 dead transitions. [2022-12-06 05:42:59,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 316 flow [2022-12-06 05:42:59,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:42:59,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:42:59,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-12-06 05:42:59,093 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2022-12-06 05:42:59,093 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 112 flow. Second operand 4 states and 37 transitions. [2022-12-06 05:42:59,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 316 flow [2022-12-06 05:42:59,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 45 transitions, 296 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-06 05:42:59,097 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 202 flow [2022-12-06 05:42:59,098 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2022-12-06 05:42:59,100 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 11 predicate places. [2022-12-06 05:42:59,100 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:59,100 INFO L89 Accepts]: Start accepts. Operand has 30 places, 28 transitions, 202 flow [2022-12-06 05:42:59,101 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:59,101 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:59,101 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 28 transitions, 202 flow [2022-12-06 05:42:59,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 202 flow [2022-12-06 05:42:59,110 INFO L130 PetriNetUnfolder]: 12/83 cut-off events. [2022-12-06 05:42:59,110 INFO L131 PetriNetUnfolder]: For 99/102 co-relation queries the response was YES. [2022-12-06 05:42:59,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 83 events. 12/83 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 370 event pairs, 0 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 79. Up to 19 conditions per place. [2022-12-06 05:42:59,111 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 28 transitions, 202 flow [2022-12-06 05:42:59,111 INFO L188 LiptonReduction]: Number of co-enabled transitions 128 [2022-12-06 05:42:59,112 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:59,112 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 05:42:59,112 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 202 flow [2022-12-06 05:42:59,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:59,113 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:59,113 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:42:59,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 05:42:59,317 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 [2022-12-06 05:42:59,317 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:42:59,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:59,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1826688405, now seen corresponding path program 4 times [2022-12-06 05:42:59,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:59,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77277633] [2022-12-06 05:42:59,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:59,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:42:59,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:59,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77277633] [2022-12-06 05:42:59,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77277633] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:42:59,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103010857] [2022-12-06 05:42:59,412 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 05:42:59,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:42:59,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:42:59,413 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) [2022-12-06 05:42:59,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 05:42:59,496 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 05:42:59,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:42:59,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 05:42:59,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:42:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:42:59,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 05:42:59,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103010857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:59,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 05:42:59,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-12-06 05:42:59,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698808514] [2022-12-06 05:42:59,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:59,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:42:59,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:42:59,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 05:42:59,595 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 05:42:59,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:42:59,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:59,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 05:42:59,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:59,750 INFO L130 PetriNetUnfolder]: 333/671 cut-off events. [2022-12-06 05:42:59,750 INFO L131 PetriNetUnfolder]: For 1483/1483 co-relation queries the response was YES. [2022-12-06 05:42:59,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 671 events. 333/671 cut-off events. For 1483/1483 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3423 event pairs, 214 based on Foata normal form. 28/697 useless extension candidates. Maximal degree in co-relation 816. Up to 422 conditions per place. [2022-12-06 05:42:59,753 INFO L137 encePairwiseOnDemand]: 10/15 looper letters, 27 selfloop transitions, 2 changer transitions 24/53 dead transitions. [2022-12-06 05:42:59,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 53 transitions, 436 flow [2022-12-06 05:42:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:42:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:42:59,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2022-12-06 05:42:59,755 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.48 [2022-12-06 05:42:59,755 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 202 flow. Second operand 5 states and 36 transitions. [2022-12-06 05:42:59,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 53 transitions, 436 flow [2022-12-06 05:42:59,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 53 transitions, 424 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-06 05:42:59,760 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 224 flow [2022-12-06 05:42:59,760 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=224, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2022-12-06 05:42:59,760 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 18 predicate places. [2022-12-06 05:42:59,760 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:59,760 INFO L89 Accepts]: Start accepts. Operand has 37 places, 29 transitions, 224 flow [2022-12-06 05:42:59,761 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:59,761 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:59,762 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 29 transitions, 224 flow [2022-12-06 05:42:59,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 224 flow [2022-12-06 05:42:59,770 INFO L130 PetriNetUnfolder]: 13/85 cut-off events. [2022-12-06 05:42:59,771 INFO L131 PetriNetUnfolder]: For 134/135 co-relation queries the response was YES. [2022-12-06 05:42:59,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 85 events. 13/85 cut-off events. For 134/135 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 365 event pairs, 0 based on Foata normal form. 1/77 useless extension candidates. Maximal degree in co-relation 201. Up to 16 conditions per place. [2022-12-06 05:42:59,771 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 224 flow [2022-12-06 05:42:59,772 INFO L188 LiptonReduction]: Number of co-enabled transitions 124 [2022-12-06 05:43:00,786 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:43:00,786 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1026 [2022-12-06 05:43:00,787 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 220 flow [2022-12-06 05:43:00,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:00,787 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:00,787 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:00,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:00,987 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 [2022-12-06 05:43:00,988 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:00,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:00,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1963043088, now seen corresponding path program 1 times [2022-12-06 05:43:00,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:00,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262824669] [2022-12-06 05:43:00,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:00,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:01,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:01,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:01,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262824669] [2022-12-06 05:43:01,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262824669] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:01,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186252914] [2022-12-06 05:43:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:01,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:01,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:01,399 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) [2022-12-06 05:43:01,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 05:43:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:01,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-06 05:43:01,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:01,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 05:43:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:01,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:01,581 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-06 05:43:01,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 13 [2022-12-06 05:43:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:01,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186252914] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:01,607 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:01,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 11 [2022-12-06 05:43:01,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830833672] [2022-12-06 05:43:01,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:01,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 05:43:01,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:01,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 05:43:01,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-06 05:43:01,608 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 05:43:01,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 220 flow. Second operand has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:01,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:01,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 05:43:01,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:02,024 INFO L130 PetriNetUnfolder]: 347/660 cut-off events. [2022-12-06 05:43:02,025 INFO L131 PetriNetUnfolder]: For 1440/1440 co-relation queries the response was YES. [2022-12-06 05:43:02,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2223 conditions, 660 events. 347/660 cut-off events. For 1440/1440 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3187 event pairs, 30 based on Foata normal form. 5/663 useless extension candidates. Maximal degree in co-relation 2203. Up to 132 conditions per place. [2022-12-06 05:43:02,028 INFO L137 encePairwiseOnDemand]: 9/15 looper letters, 72 selfloop transitions, 27 changer transitions 56/155 dead transitions. [2022-12-06 05:43:02,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 155 transitions, 979 flow [2022-12-06 05:43:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 05:43:02,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 05:43:02,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 156 transitions. [2022-12-06 05:43:02,030 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2022-12-06 05:43:02,030 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 220 flow. Second operand 18 states and 156 transitions. [2022-12-06 05:43:02,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 155 transitions, 979 flow [2022-12-06 05:43:02,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 155 transitions, 953 flow, removed 13 selfloop flow, removed 3 redundant places. [2022-12-06 05:43:02,036 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 423 flow [2022-12-06 05:43:02,037 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=423, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2022-12-06 05:43:02,037 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 35 predicate places. [2022-12-06 05:43:02,037 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:02,037 INFO L89 Accepts]: Start accepts. Operand has 54 places, 42 transitions, 423 flow [2022-12-06 05:43:02,038 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:02,038 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:02,039 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 42 transitions, 423 flow [2022-12-06 05:43:02,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 42 transitions, 423 flow [2022-12-06 05:43:02,070 INFO L130 PetriNetUnfolder]: 23/136 cut-off events. [2022-12-06 05:43:02,070 INFO L131 PetriNetUnfolder]: For 256/256 co-relation queries the response was YES. [2022-12-06 05:43:02,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 136 events. 23/136 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 716 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 323. Up to 27 conditions per place. [2022-12-06 05:43:02,072 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 42 transitions, 423 flow [2022-12-06 05:43:02,072 INFO L188 LiptonReduction]: Number of co-enabled transitions 210 [2022-12-06 05:43:02,077 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,077 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,077 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,077 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,207 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,207 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,208 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,208 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,402 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,402 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,402 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:02,403 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:03,565 INFO L203 LiptonReduction]: Total number of compositions: 4 [2022-12-06 05:43:03,566 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1529 [2022-12-06 05:43:03,566 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 442 flow [2022-12-06 05:43:03,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:03,567 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:03,567 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:03,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:03,771 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 [2022-12-06 05:43:03,771 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:03,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:03,772 INFO L85 PathProgramCache]: Analyzing trace with hash 247879872, now seen corresponding path program 2 times [2022-12-06 05:43:03,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:03,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125648464] [2022-12-06 05:43:03,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:03,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:04,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:04,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125648464] [2022-12-06 05:43:04,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125648464] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:04,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114923134] [2022-12-06 05:43:04,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 05:43:04,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:04,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:04,196 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) [2022-12-06 05:43:04,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 05:43:04,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 05:43:04,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:43:04,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-06 05:43:04,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:04,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 05:43:04,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-12-06 05:43:04,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 05:43:04,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:04,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:04,515 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:43:04,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 37 [2022-12-06 05:43:04,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2022-12-06 05:43:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:04,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114923134] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:04,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:04,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-12-06 05:43:04,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025831881] [2022-12-06 05:43:04,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:04,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 05:43:04,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 05:43:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=289, Unknown=2, NotChecked=0, Total=342 [2022-12-06 05:43:04,585 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 19 [2022-12-06 05:43:04,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 442 flow. Second operand has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:04,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:04,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 19 [2022-12-06 05:43:04,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:05,115 INFO L130 PetriNetUnfolder]: 363/689 cut-off events. [2022-12-06 05:43:05,116 INFO L131 PetriNetUnfolder]: For 2067/2067 co-relation queries the response was YES. [2022-12-06 05:43:05,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2551 conditions, 689 events. 363/689 cut-off events. For 2067/2067 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3380 event pairs, 40 based on Foata normal form. 1/685 useless extension candidates. Maximal degree in co-relation 2249. Up to 138 conditions per place. [2022-12-06 05:43:05,120 INFO L137 encePairwiseOnDemand]: 11/19 looper letters, 52 selfloop transitions, 27 changer transitions 35/114 dead transitions. [2022-12-06 05:43:05,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 114 transitions, 882 flow [2022-12-06 05:43:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 05:43:05,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 05:43:05,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 104 transitions. [2022-12-06 05:43:05,121 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2022-12-06 05:43:05,121 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 442 flow. Second operand 12 states and 104 transitions. [2022-12-06 05:43:05,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 114 transitions, 882 flow [2022-12-06 05:43:05,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 114 transitions, 742 flow, removed 41 selfloop flow, removed 6 redundant places. [2022-12-06 05:43:05,129 INFO L231 Difference]: Finished difference. Result has 60 places, 43 transitions, 381 flow [2022-12-06 05:43:05,129 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=381, PETRI_PLACES=60, PETRI_TRANSITIONS=43} [2022-12-06 05:43:05,130 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 41 predicate places. [2022-12-06 05:43:05,130 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:05,130 INFO L89 Accepts]: Start accepts. Operand has 60 places, 43 transitions, 381 flow [2022-12-06 05:43:05,131 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:05,131 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:05,131 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 43 transitions, 381 flow [2022-12-06 05:43:05,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 43 transitions, 381 flow [2022-12-06 05:43:05,144 INFO L130 PetriNetUnfolder]: 23/139 cut-off events. [2022-12-06 05:43:05,144 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-12-06 05:43:05,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 139 events. 23/139 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 761 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 310. Up to 27 conditions per place. [2022-12-06 05:43:05,146 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 43 transitions, 381 flow [2022-12-06 05:43:05,146 INFO L188 LiptonReduction]: Number of co-enabled transitions 220 [2022-12-06 05:43:05,151 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:05,152 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-06 05:43:05,152 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 43 transitions, 381 flow [2022-12-06 05:43:05,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:05,152 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:05,152 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:05,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:05,356 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 [2022-12-06 05:43:05,357 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:05,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:05,357 INFO L85 PathProgramCache]: Analyzing trace with hash -452356334, now seen corresponding path program 3 times [2022-12-06 05:43:05,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:05,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567890039] [2022-12-06 05:43:05,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:05,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:05,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:05,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567890039] [2022-12-06 05:43:05,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567890039] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:05,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713818595] [2022-12-06 05:43:05,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 05:43:05,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:05,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:05,438 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) [2022-12-06 05:43:05,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-06 05:43:05,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-06 05:43:05,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:43:05,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 05:43:05,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:05,663 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-12-06 05:43:05,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 13 [2022-12-06 05:43:05,685 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:43:05,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:05,798 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2022-12-06 05:43:05,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 35 [2022-12-06 05:43:05,882 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:43:05,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713818595] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:05,882 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:05,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2022-12-06 05:43:05,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452720066] [2022-12-06 05:43:05,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:05,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 05:43:05,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:05,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 05:43:05,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-12-06 05:43:05,884 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 19 [2022-12-06 05:43:05,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 43 transitions, 381 flow. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:05,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:05,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 19 [2022-12-06 05:43:05,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:07,334 INFO L130 PetriNetUnfolder]: 1283/2412 cut-off events. [2022-12-06 05:43:07,334 INFO L131 PetriNetUnfolder]: For 6023/6023 co-relation queries the response was YES. [2022-12-06 05:43:07,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8176 conditions, 2412 events. 1283/2412 cut-off events. For 6023/6023 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 15344 event pairs, 136 based on Foata normal form. 56/2464 useless extension candidates. Maximal degree in co-relation 6814. Up to 498 conditions per place. [2022-12-06 05:43:07,380 INFO L137 encePairwiseOnDemand]: 9/19 looper letters, 61 selfloop transitions, 48 changer transitions 155/264 dead transitions. [2022-12-06 05:43:07,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 264 transitions, 2138 flow [2022-12-06 05:43:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 05:43:07,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 05:43:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 224 transitions. [2022-12-06 05:43:07,383 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47157894736842104 [2022-12-06 05:43:07,383 INFO L175 Difference]: Start difference. First operand has 60 places, 43 transitions, 381 flow. Second operand 25 states and 224 transitions. [2022-12-06 05:43:07,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 264 transitions, 2138 flow [2022-12-06 05:43:07,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 264 transitions, 1979 flow, removed 33 selfloop flow, removed 9 redundant places. [2022-12-06 05:43:07,406 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 809 flow [2022-12-06 05:43:07,406 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=809, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2022-12-06 05:43:07,407 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 67 predicate places. [2022-12-06 05:43:07,407 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:07,407 INFO L89 Accepts]: Start accepts. Operand has 86 places, 75 transitions, 809 flow [2022-12-06 05:43:07,410 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:07,410 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:07,410 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 75 transitions, 809 flow [2022-12-06 05:43:07,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 75 transitions, 809 flow [2022-12-06 05:43:07,439 INFO L130 PetriNetUnfolder]: 49/288 cut-off events. [2022-12-06 05:43:07,439 INFO L131 PetriNetUnfolder]: For 979/981 co-relation queries the response was YES. [2022-12-06 05:43:07,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 881 conditions, 288 events. 49/288 cut-off events. For 979/981 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2055 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 781. Up to 58 conditions per place. [2022-12-06 05:43:07,442 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 75 transitions, 809 flow [2022-12-06 05:43:07,442 INFO L188 LiptonReduction]: Number of co-enabled transitions 420 [2022-12-06 05:43:08,538 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,539 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,539 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,539 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,647 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,648 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,648 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,648 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,753 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,753 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,753 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,753 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:08,955 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 05:43:08,956 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1549 [2022-12-06 05:43:08,956 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 815 flow [2022-12-06 05:43:08,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:08,956 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:08,957 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:08,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:09,161 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 [2022-12-06 05:43:09,161 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:09,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:09,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1625190638, now seen corresponding path program 1 times [2022-12-06 05:43:09,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:09,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226765405] [2022-12-06 05:43:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:09,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:09,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:09,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226765405] [2022-12-06 05:43:09,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226765405] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:09,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682094993] [2022-12-06 05:43:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:09,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:09,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:09,516 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) [2022-12-06 05:43:09,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-06 05:43:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:09,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-06 05:43:09,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:09,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 05:43:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:09,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:09,786 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-06 05:43:09,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 13 [2022-12-06 05:43:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:09,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682094993] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:09,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:09,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 20 [2022-12-06 05:43:09,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803180769] [2022-12-06 05:43:09,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:09,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-06 05:43:09,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:09,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-06 05:43:09,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-12-06 05:43:09,831 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 21 [2022-12-06 05:43:09,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 74 transitions, 815 flow. Second operand has 22 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:09,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:09,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 21 [2022-12-06 05:43:09,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:11,325 INFO L130 PetriNetUnfolder]: 1165/2175 cut-off events. [2022-12-06 05:43:11,325 INFO L131 PetriNetUnfolder]: For 7231/7231 co-relation queries the response was YES. [2022-12-06 05:43:11,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7907 conditions, 2175 events. 1165/2175 cut-off events. For 7231/7231 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 13421 event pairs, 50 based on Foata normal form. 12/2187 useless extension candidates. Maximal degree in co-relation 7859. Up to 444 conditions per place. [2022-12-06 05:43:11,337 INFO L137 encePairwiseOnDemand]: 10/21 looper letters, 140 selfloop transitions, 93 changer transitions 128/361 dead transitions. [2022-12-06 05:43:11,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 361 transitions, 2703 flow [2022-12-06 05:43:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-06 05:43:11,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-12-06 05:43:11,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 339 transitions. [2022-12-06 05:43:11,340 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4139194139194139 [2022-12-06 05:43:11,340 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 815 flow. Second operand 39 states and 339 transitions. [2022-12-06 05:43:11,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 361 transitions, 2703 flow [2022-12-06 05:43:11,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 361 transitions, 2428 flow, removed 124 selfloop flow, removed 12 redundant places. [2022-12-06 05:43:11,365 INFO L231 Difference]: Finished difference. Result has 112 places, 111 transitions, 1365 flow [2022-12-06 05:43:11,365 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=1365, PETRI_PLACES=112, PETRI_TRANSITIONS=111} [2022-12-06 05:43:11,366 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 93 predicate places. [2022-12-06 05:43:11,366 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:11,366 INFO L89 Accepts]: Start accepts. Operand has 112 places, 111 transitions, 1365 flow [2022-12-06 05:43:11,368 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:11,368 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:11,368 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 111 transitions, 1365 flow [2022-12-06 05:43:11,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 111 transitions, 1365 flow [2022-12-06 05:43:11,406 INFO L130 PetriNetUnfolder]: 74/410 cut-off events. [2022-12-06 05:43:11,407 INFO L131 PetriNetUnfolder]: For 844/844 co-relation queries the response was YES. [2022-12-06 05:43:11,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 410 events. 74/410 cut-off events. For 844/844 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3215 event pairs, 0 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 1079. Up to 84 conditions per place. [2022-12-06 05:43:11,411 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 111 transitions, 1365 flow [2022-12-06 05:43:11,411 INFO L188 LiptonReduction]: Number of co-enabled transitions 668 [2022-12-06 05:43:11,412 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,412 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,412 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,412 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,585 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,585 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,585 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,585 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,674 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,674 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,674 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,674 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,845 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,845 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,846 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:11,846 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,035 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,036 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,036 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,036 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,232 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,232 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,232 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,232 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,348 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,348 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,348 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,349 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,459 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,459 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,460 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,460 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:12,554 INFO L203 LiptonReduction]: Total number of compositions: 8 [2022-12-06 05:43:12,555 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1189 [2022-12-06 05:43:12,555 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 111 transitions, 1386 flow [2022-12-06 05:43:12,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:12,556 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:12,556 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:12,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:12,760 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 [2022-12-06 05:43:12,761 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:12,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:12,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1148426903, now seen corresponding path program 1 times [2022-12-06 05:43:12,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:12,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264656373] [2022-12-06 05:43:12,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-06 05:43:12,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:12,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264656373] [2022-12-06 05:43:12,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264656373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:43:12,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:43:12,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 05:43:12,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750511106] [2022-12-06 05:43:12,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:43:12,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 05:43:12,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:12,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 05:43:12,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 05:43:12,874 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-06 05:43:12,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 111 transitions, 1386 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:12,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:12,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-06 05:43:12,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:13,168 INFO L130 PetriNetUnfolder]: 1145/2138 cut-off events. [2022-12-06 05:43:13,168 INFO L131 PetriNetUnfolder]: For 7108/7108 co-relation queries the response was YES. [2022-12-06 05:43:13,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7887 conditions, 2138 events. 1145/2138 cut-off events. For 7108/7108 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 13364 event pairs, 779 based on Foata normal form. 6/2129 useless extension candidates. Maximal degree in co-relation 7603. Up to 2112 conditions per place. [2022-12-06 05:43:13,183 INFO L137 encePairwiseOnDemand]: 25/29 looper letters, 106 selfloop transitions, 3 changer transitions 8/117 dead transitions. [2022-12-06 05:43:13,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 117 transitions, 1616 flow [2022-12-06 05:43:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 05:43:13,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 05:43:13,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2022-12-06 05:43:13,185 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4482758620689655 [2022-12-06 05:43:13,185 INFO L175 Difference]: Start difference. First operand has 112 places, 111 transitions, 1386 flow. Second operand 3 states and 39 transitions. [2022-12-06 05:43:13,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 117 transitions, 1616 flow [2022-12-06 05:43:13,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 117 transitions, 1371 flow, removed 52 selfloop flow, removed 13 redundant places. [2022-12-06 05:43:13,226 INFO L231 Difference]: Finished difference. Result has 100 places, 108 transitions, 1119 flow [2022-12-06 05:43:13,226 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1119, PETRI_PLACES=100, PETRI_TRANSITIONS=108} [2022-12-06 05:43:13,227 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 81 predicate places. [2022-12-06 05:43:13,227 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:13,227 INFO L89 Accepts]: Start accepts. Operand has 100 places, 108 transitions, 1119 flow [2022-12-06 05:43:13,229 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:13,229 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:13,230 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 108 transitions, 1119 flow [2022-12-06 05:43:13,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 108 transitions, 1119 flow [2022-12-06 05:43:13,264 INFO L130 PetriNetUnfolder]: 70/401 cut-off events. [2022-12-06 05:43:13,265 INFO L131 PetriNetUnfolder]: For 667/667 co-relation queries the response was YES. [2022-12-06 05:43:13,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 401 events. 70/401 cut-off events. For 667/667 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3186 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 942. Up to 79 conditions per place. [2022-12-06 05:43:13,268 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 108 transitions, 1119 flow [2022-12-06 05:43:13,268 INFO L188 LiptonReduction]: Number of co-enabled transitions 654 [2022-12-06 05:43:13,269 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:13,271 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 44 [2022-12-06 05:43:13,271 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 108 transitions, 1119 flow [2022-12-06 05:43:13,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:13,271 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:13,271 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:13,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 05:43:13,271 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:13,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1550876388, now seen corresponding path program 1 times [2022-12-06 05:43:13,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:13,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187080810] [2022-12-06 05:43:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:13,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:13,363 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-06 05:43:13,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:13,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187080810] [2022-12-06 05:43:13,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187080810] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:13,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367030348] [2022-12-06 05:43:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:13,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:13,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:13,365 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) [2022-12-06 05:43:13,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-06 05:43:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:13,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-06 05:43:13,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-06 05:43:13,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 05:43:13,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367030348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:43:13,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 05:43:13,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-06 05:43:13,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309977641] [2022-12-06 05:43:13,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:43:13,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:43:13,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:13,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:43:13,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 05:43:13,498 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 05:43:13,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 108 transitions, 1119 flow. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:13,499 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:13,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 05:43:13,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:13,952 INFO L130 PetriNetUnfolder]: 1857/3483 cut-off events. [2022-12-06 05:43:13,953 INFO L131 PetriNetUnfolder]: For 8135/8135 co-relation queries the response was YES. [2022-12-06 05:43:13,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11600 conditions, 3483 events. 1857/3483 cut-off events. For 8135/8135 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 24242 event pairs, 1211 based on Foata normal form. 34/3482 useless extension candidates. Maximal degree in co-relation 11264. Up to 2050 conditions per place. [2022-12-06 05:43:13,972 INFO L137 encePairwiseOnDemand]: 16/28 looper letters, 167 selfloop transitions, 17 changer transitions 3/187 dead transitions. [2022-12-06 05:43:13,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 187 transitions, 2225 flow [2022-12-06 05:43:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:43:13,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:43:13,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2022-12-06 05:43:13,975 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2022-12-06 05:43:13,975 INFO L175 Difference]: Start difference. First operand has 100 places, 108 transitions, 1119 flow. Second operand 4 states and 60 transitions. [2022-12-06 05:43:13,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 187 transitions, 2225 flow [2022-12-06 05:43:14,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 187 transitions, 2219 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 05:43:14,023 INFO L231 Difference]: Finished difference. Result has 103 places, 123 transitions, 1384 flow [2022-12-06 05:43:14,024 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1384, PETRI_PLACES=103, PETRI_TRANSITIONS=123} [2022-12-06 05:43:14,024 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 84 predicate places. [2022-12-06 05:43:14,024 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:14,024 INFO L89 Accepts]: Start accepts. Operand has 103 places, 123 transitions, 1384 flow [2022-12-06 05:43:14,027 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:14,027 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:14,027 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 123 transitions, 1384 flow [2022-12-06 05:43:14,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 123 transitions, 1384 flow [2022-12-06 05:43:14,085 INFO L130 PetriNetUnfolder]: 105/641 cut-off events. [2022-12-06 05:43:14,085 INFO L131 PetriNetUnfolder]: For 1267/1267 co-relation queries the response was YES. [2022-12-06 05:43:14,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1697 conditions, 641 events. 105/641 cut-off events. For 1267/1267 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5952 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 1592. Up to 121 conditions per place. [2022-12-06 05:43:14,091 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 123 transitions, 1384 flow [2022-12-06 05:43:14,091 INFO L188 LiptonReduction]: Number of co-enabled transitions 752 [2022-12-06 05:43:14,092 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:14,093 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 69 [2022-12-06 05:43:14,093 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 123 transitions, 1384 flow [2022-12-06 05:43:14,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:14,093 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:14,093 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:14,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:14,295 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,SelfDestructingSolverStorable12 [2022-12-06 05:43:14,295 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:14,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:14,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1905614036, now seen corresponding path program 1 times [2022-12-06 05:43:14,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:14,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895975487] [2022-12-06 05:43:14,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:14,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-06 05:43:14,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:14,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895975487] [2022-12-06 05:43:14,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895975487] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:14,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429213805] [2022-12-06 05:43:14,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:14,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:14,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:14,388 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) [2022-12-06 05:43:14,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-06 05:43:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:14,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-06 05:43:14,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-06 05:43:14,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 05:43:14,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429213805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:43:14,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 05:43:14,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-06 05:43:14,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387356267] [2022-12-06 05:43:14,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:43:14,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:43:14,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:14,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:43:14,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 05:43:14,521 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 05:43:14,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 123 transitions, 1384 flow. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:14,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:14,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 05:43:14,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:15,060 INFO L130 PetriNetUnfolder]: 1999/3741 cut-off events. [2022-12-06 05:43:15,060 INFO L131 PetriNetUnfolder]: For 10683/10683 co-relation queries the response was YES. [2022-12-06 05:43:15,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12973 conditions, 3741 events. 1999/3741 cut-off events. For 10683/10683 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 26274 event pairs, 994 based on Foata normal form. 5/3745 useless extension candidates. Maximal degree in co-relation 12470. Up to 2050 conditions per place. [2022-12-06 05:43:15,083 INFO L137 encePairwiseOnDemand]: 14/28 looper letters, 142 selfloop transitions, 55 changer transitions 2/199 dead transitions. [2022-12-06 05:43:15,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 199 transitions, 2504 flow [2022-12-06 05:43:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:43:15,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:43:15,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2022-12-06 05:43:15,084 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2022-12-06 05:43:15,084 INFO L175 Difference]: Start difference. First operand has 103 places, 123 transitions, 1384 flow. Second operand 4 states and 62 transitions. [2022-12-06 05:43:15,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 199 transitions, 2504 flow [2022-12-06 05:43:15,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 199 transitions, 2495 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-06 05:43:15,136 INFO L231 Difference]: Finished difference. Result has 107 places, 160 transitions, 2051 flow [2022-12-06 05:43:15,136 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1348, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2051, PETRI_PLACES=107, PETRI_TRANSITIONS=160} [2022-12-06 05:43:15,137 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 88 predicate places. [2022-12-06 05:43:15,137 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:15,137 INFO L89 Accepts]: Start accepts. Operand has 107 places, 160 transitions, 2051 flow [2022-12-06 05:43:15,138 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:15,139 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:15,139 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 160 transitions, 2051 flow [2022-12-06 05:43:15,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 160 transitions, 2051 flow [2022-12-06 05:43:15,204 INFO L130 PetriNetUnfolder]: 114/694 cut-off events. [2022-12-06 05:43:15,205 INFO L131 PetriNetUnfolder]: For 1843/1843 co-relation queries the response was YES. [2022-12-06 05:43:15,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 694 events. 114/694 cut-off events. For 1843/1843 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 6533 event pairs, 0 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 1911. Up to 130 conditions per place. [2022-12-06 05:43:15,211 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 160 transitions, 2051 flow [2022-12-06 05:43:15,211 INFO L188 LiptonReduction]: Number of co-enabled transitions 1010 [2022-12-06 05:43:15,213 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:15,214 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 77 [2022-12-06 05:43:15,214 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 160 transitions, 2051 flow [2022-12-06 05:43:15,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:15,214 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:15,214 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:15,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:15,421 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,SelfDestructingSolverStorable13 [2022-12-06 05:43:15,422 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:15,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:15,422 INFO L85 PathProgramCache]: Analyzing trace with hash 806037576, now seen corresponding path program 1 times [2022-12-06 05:43:15,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:15,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273059116] [2022-12-06 05:43:15,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:15,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:15,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:15,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:15,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273059116] [2022-12-06 05:43:15,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273059116] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:15,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468234992] [2022-12-06 05:43:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:15,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:15,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:15,504 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) [2022-12-06 05:43:15,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-06 05:43:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:15,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-06 05:43:15,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:15,608 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:15,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:15,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468234992] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:15,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:15,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2022-12-06 05:43:15,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420523382] [2022-12-06 05:43:15,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:15,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 05:43:15,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:15,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 05:43:15,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-06 05:43:15,645 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 05:43:15,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 160 transitions, 2051 flow. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:15,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:15,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 05:43:15,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:16,503 INFO L130 PetriNetUnfolder]: 3473/6444 cut-off events. [2022-12-06 05:43:16,504 INFO L131 PetriNetUnfolder]: For 28508/28508 co-relation queries the response was YES. [2022-12-06 05:43:16,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24536 conditions, 6444 events. 3473/6444 cut-off events. For 28508/28508 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 48588 event pairs, 609 based on Foata normal form. 24/6467 useless extension candidates. Maximal degree in co-relation 22883. Up to 1754 conditions per place. [2022-12-06 05:43:16,544 INFO L137 encePairwiseOnDemand]: 12/28 looper letters, 100 selfloop transitions, 180 changer transitions 0/280 dead transitions. [2022-12-06 05:43:16,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 280 transitions, 4063 flow [2022-12-06 05:43:16,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 05:43:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 05:43:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 78 transitions. [2022-12-06 05:43:16,545 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2022-12-06 05:43:16,545 INFO L175 Difference]: Start difference. First operand has 107 places, 160 transitions, 2051 flow. Second operand 6 states and 78 transitions. [2022-12-06 05:43:16,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 280 transitions, 4063 flow [2022-12-06 05:43:16,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 280 transitions, 4031 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-12-06 05:43:16,635 INFO L231 Difference]: Finished difference. Result has 111 places, 247 transitions, 3759 flow [2022-12-06 05:43:16,635 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2031, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3759, PETRI_PLACES=111, PETRI_TRANSITIONS=247} [2022-12-06 05:43:16,635 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 92 predicate places. [2022-12-06 05:43:16,635 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:16,635 INFO L89 Accepts]: Start accepts. Operand has 111 places, 247 transitions, 3759 flow [2022-12-06 05:43:16,638 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:16,638 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:16,638 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 247 transitions, 3759 flow [2022-12-06 05:43:16,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 247 transitions, 3759 flow [2022-12-06 05:43:16,816 INFO L130 PetriNetUnfolder]: 203/1188 cut-off events. [2022-12-06 05:43:16,816 INFO L131 PetriNetUnfolder]: For 4738/4740 co-relation queries the response was YES. [2022-12-06 05:43:16,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4150 conditions, 1188 events. 203/1188 cut-off events. For 4738/4740 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 12482 event pairs, 0 based on Foata normal form. 0/1096 useless extension candidates. Maximal degree in co-relation 3646. Up to 305 conditions per place. [2022-12-06 05:43:16,829 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 247 transitions, 3759 flow [2022-12-06 05:43:16,829 INFO L188 LiptonReduction]: Number of co-enabled transitions 1678 [2022-12-06 05:43:16,830 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:16,831 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 196 [2022-12-06 05:43:16,831 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 247 transitions, 3759 flow [2022-12-06 05:43:16,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:16,831 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:16,831 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:16,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:17,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-06 05:43:17,036 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1935893168, now seen corresponding path program 2 times [2022-12-06 05:43:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:17,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135616666] [2022-12-06 05:43:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:17,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:17,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:17,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:17,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135616666] [2022-12-06 05:43:17,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135616666] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:17,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218456787] [2022-12-06 05:43:17,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 05:43:17,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:17,534 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:43:17,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-06 05:43:17,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 05:43:17,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:43:17,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-06 05:43:17,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:17,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 05:43:17,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-12-06 05:43:17,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 05:43:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:17,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:17,865 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_458 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_458) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4) 8)))) is different from false [2022-12-06 05:43:17,874 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:43:17,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 37 [2022-12-06 05:43:17,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2022-12-06 05:43:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:17,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218456787] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:17,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:17,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 24 [2022-12-06 05:43:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259695614] [2022-12-06 05:43:17,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:17,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-06 05:43:17,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-06 05:43:17,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=532, Unknown=1, NotChecked=46, Total=650 [2022-12-06 05:43:17,960 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 05:43:17,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 247 transitions, 3759 flow. Second operand has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:17,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:17,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 05:43:17,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:19,444 INFO L130 PetriNetUnfolder]: 3547/6583 cut-off events. [2022-12-06 05:43:19,444 INFO L131 PetriNetUnfolder]: For 31977/31977 co-relation queries the response was YES. [2022-12-06 05:43:19,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27505 conditions, 6583 events. 3547/6583 cut-off events. For 31977/31977 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 49554 event pairs, 445 based on Foata normal form. 5/6587 useless extension candidates. Maximal degree in co-relation 25707. Up to 1547 conditions per place. [2022-12-06 05:43:19,479 INFO L137 encePairwiseOnDemand]: 11/28 looper letters, 103 selfloop transitions, 215 changer transitions 44/362 dead transitions. [2022-12-06 05:43:19,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 362 transitions, 5103 flow [2022-12-06 05:43:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 05:43:19,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 05:43:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 138 transitions. [2022-12-06 05:43:19,481 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32857142857142857 [2022-12-06 05:43:19,481 INFO L175 Difference]: Start difference. First operand has 111 places, 247 transitions, 3759 flow. Second operand 15 states and 138 transitions. [2022-12-06 05:43:19,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 362 transitions, 5103 flow [2022-12-06 05:43:19,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 362 transitions, 5013 flow, removed 45 selfloop flow, removed 0 redundant places. [2022-12-06 05:43:19,655 INFO L231 Difference]: Finished difference. Result has 126 places, 251 transitions, 4282 flow [2022-12-06 05:43:19,656 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=3719, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4282, PETRI_PLACES=126, PETRI_TRANSITIONS=251} [2022-12-06 05:43:19,656 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 107 predicate places. [2022-12-06 05:43:19,656 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:19,656 INFO L89 Accepts]: Start accepts. Operand has 126 places, 251 transitions, 4282 flow [2022-12-06 05:43:19,659 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:19,659 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:19,660 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 251 transitions, 4282 flow [2022-12-06 05:43:19,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 251 transitions, 4282 flow [2022-12-06 05:43:19,814 INFO L130 PetriNetUnfolder]: 207/1201 cut-off events. [2022-12-06 05:43:19,815 INFO L131 PetriNetUnfolder]: For 5545/5547 co-relation queries the response was YES. [2022-12-06 05:43:19,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4376 conditions, 1201 events. 207/1201 cut-off events. For 5545/5547 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 12645 event pairs, 0 based on Foata normal form. 0/1103 useless extension candidates. Maximal degree in co-relation 3849. Up to 314 conditions per place. [2022-12-06 05:43:19,832 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 251 transitions, 4282 flow [2022-12-06 05:43:19,832 INFO L188 LiptonReduction]: Number of co-enabled transitions 1710 [2022-12-06 05:43:19,834 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:19,835 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 179 [2022-12-06 05:43:19,835 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 251 transitions, 4282 flow [2022-12-06 05:43:19,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:19,835 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:19,835 INFO L213 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:19,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:20,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-06 05:43:20,048 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:20,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash -7344084, now seen corresponding path program 1 times [2022-12-06 05:43:20,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:20,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879235185] [2022-12-06 05:43:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:20,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-06 05:43:20,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:20,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879235185] [2022-12-06 05:43:20,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879235185] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:20,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060036426] [2022-12-06 05:43:20,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:20,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:20,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:20,191 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:43:20,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-06 05:43:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:20,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-06 05:43:20,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-06 05:43:20,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 05:43:20,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060036426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:43:20,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 05:43:20,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-12-06 05:43:20,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324175280] [2022-12-06 05:43:20,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:43:20,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:43:20,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:20,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:43:20,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-06 05:43:20,353 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 05:43:20,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 251 transitions, 4282 flow. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:20,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:20,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 05:43:20,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:21,122 INFO L130 PetriNetUnfolder]: 3209/5985 cut-off events. [2022-12-06 05:43:21,123 INFO L131 PetriNetUnfolder]: For 33988/33988 co-relation queries the response was YES. [2022-12-06 05:43:21,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25746 conditions, 5985 events. 3209/5985 cut-off events. For 33988/33988 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 44900 event pairs, 2156 based on Foata normal form. 26/6010 useless extension candidates. Maximal degree in co-relation 23317. Up to 3999 conditions per place. [2022-12-06 05:43:21,161 INFO L137 encePairwiseOnDemand]: 16/28 looper letters, 258 selfloop transitions, 11 changer transitions 15/284 dead transitions. [2022-12-06 05:43:21,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 284 transitions, 5054 flow [2022-12-06 05:43:21,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:43:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:43:21,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2022-12-06 05:43:21,162 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2022-12-06 05:43:21,162 INFO L175 Difference]: Start difference. First operand has 126 places, 251 transitions, 4282 flow. Second operand 5 states and 66 transitions. [2022-12-06 05:43:21,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 284 transitions, 5054 flow [2022-12-06 05:43:21,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 284 transitions, 4547 flow, removed 65 selfloop flow, removed 12 redundant places. [2022-12-06 05:43:21,414 INFO L231 Difference]: Finished difference. Result has 119 places, 233 transitions, 3493 flow [2022-12-06 05:43:21,414 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=3516, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3493, PETRI_PLACES=119, PETRI_TRANSITIONS=233} [2022-12-06 05:43:21,414 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 100 predicate places. [2022-12-06 05:43:21,415 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:21,415 INFO L89 Accepts]: Start accepts. Operand has 119 places, 233 transitions, 3493 flow [2022-12-06 05:43:21,417 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:21,417 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:21,417 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 233 transitions, 3493 flow [2022-12-06 05:43:21,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 233 transitions, 3493 flow [2022-12-06 05:43:21,507 INFO L130 PetriNetUnfolder]: 182/1076 cut-off events. [2022-12-06 05:43:21,508 INFO L131 PetriNetUnfolder]: For 4732/4734 co-relation queries the response was YES. [2022-12-06 05:43:21,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3669 conditions, 1076 events. 182/1076 cut-off events. For 4732/4734 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 10974 event pairs, 0 based on Foata normal form. 0/988 useless extension candidates. Maximal degree in co-relation 3187. Up to 274 conditions per place. [2022-12-06 05:43:21,517 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 233 transitions, 3493 flow [2022-12-06 05:43:21,518 INFO L188 LiptonReduction]: Number of co-enabled transitions 1582 [2022-12-06 05:43:21,519 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:21,520 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 105 [2022-12-06 05:43:21,520 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 233 transitions, 3493 flow [2022-12-06 05:43:21,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:21,520 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:21,520 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:21,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:21,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-06 05:43:21,722 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:21,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1454085347, now seen corresponding path program 2 times [2022-12-06 05:43:21,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:21,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698021086] [2022-12-06 05:43:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:21,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-06 05:43:21,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:21,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698021086] [2022-12-06 05:43:21,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698021086] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:21,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932266321] [2022-12-06 05:43:21,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 05:43:21,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:21,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:21,860 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:43:21,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-06 05:43:21,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 05:43:21,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:43:21,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-06 05:43:21,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-06 05:43:22,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 05:43:22,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932266321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:43:22,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 05:43:22,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-12-06 05:43:22,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136149678] [2022-12-06 05:43:22,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:43:22,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 05:43:22,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:22,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 05:43:22,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-06 05:43:22,071 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 05:43:22,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 233 transitions, 3493 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:22,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:22,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 05:43:22,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:23,227 INFO L130 PetriNetUnfolder]: 4391/8317 cut-off events. [2022-12-06 05:43:23,227 INFO L131 PetriNetUnfolder]: For 37912/37912 co-relation queries the response was YES. [2022-12-06 05:43:23,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33090 conditions, 8317 events. 4391/8317 cut-off events. For 37912/37912 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 66612 event pairs, 1897 based on Foata normal form. 177/8492 useless extension candidates. Maximal degree in co-relation 30584. Up to 3999 conditions per place. [2022-12-06 05:43:23,267 INFO L137 encePairwiseOnDemand]: 10/28 looper letters, 210 selfloop transitions, 170 changer transitions 0/380 dead transitions. [2022-12-06 05:43:23,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 380 transitions, 6102 flow [2022-12-06 05:43:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 05:43:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 05:43:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2022-12-06 05:43:23,268 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4489795918367347 [2022-12-06 05:43:23,268 INFO L175 Difference]: Start difference. First operand has 119 places, 233 transitions, 3493 flow. Second operand 7 states and 88 transitions. [2022-12-06 05:43:23,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 380 transitions, 6102 flow [2022-12-06 05:43:23,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 380 transitions, 6091 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-12-06 05:43:23,521 INFO L231 Difference]: Finished difference. Result has 129 places, 343 transitions, 5977 flow [2022-12-06 05:43:23,521 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=3329, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5977, PETRI_PLACES=129, PETRI_TRANSITIONS=343} [2022-12-06 05:43:23,521 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 110 predicate places. [2022-12-06 05:43:23,521 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:23,521 INFO L89 Accepts]: Start accepts. Operand has 129 places, 343 transitions, 5977 flow [2022-12-06 05:43:23,524 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:23,524 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:23,524 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 343 transitions, 5977 flow [2022-12-06 05:43:23,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 343 transitions, 5977 flow [2022-12-06 05:43:23,702 INFO L130 PetriNetUnfolder]: 223/1509 cut-off events. [2022-12-06 05:43:23,702 INFO L131 PetriNetUnfolder]: For 6923/6926 co-relation queries the response was YES. [2022-12-06 05:43:23,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5590 conditions, 1509 events. 223/1509 cut-off events. For 6923/6926 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 17056 event pairs, 0 based on Foata normal form. 0/1377 useless extension candidates. Maximal degree in co-relation 5182. Up to 345 conditions per place. [2022-12-06 05:43:23,719 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 343 transitions, 5977 flow [2022-12-06 05:43:23,720 INFO L188 LiptonReduction]: Number of co-enabled transitions 2362 [2022-12-06 05:43:25,807 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:43:25,808 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2287 [2022-12-06 05:43:25,808 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 343 transitions, 5995 flow [2022-12-06 05:43:25,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:25,808 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:25,808 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:25,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:26,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:26,011 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:26,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:26,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2088990809, now seen corresponding path program 1 times [2022-12-06 05:43:26,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:26,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890082089] [2022-12-06 05:43:26,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:26,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:43:26,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:26,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890082089] [2022-12-06 05:43:26,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890082089] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:26,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479151002] [2022-12-06 05:43:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:26,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:26,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:26,180 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:43:26,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-06 05:43:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:26,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 05:43:26,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:43:26,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 05:43:26,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479151002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:43:26,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 05:43:26,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-12-06 05:43:26,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002884679] [2022-12-06 05:43:26,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:43:26,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 05:43:26,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:26,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 05:43:26,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-12-06 05:43:26,376 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 30 [2022-12-06 05:43:26,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 343 transitions, 5995 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:26,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:26,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 30 [2022-12-06 05:43:26,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:27,566 INFO L130 PetriNetUnfolder]: 4227/8037 cut-off events. [2022-12-06 05:43:27,567 INFO L131 PetriNetUnfolder]: For 51932/51932 co-relation queries the response was YES. [2022-12-06 05:43:27,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35001 conditions, 8037 events. 4227/8037 cut-off events. For 51932/51932 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 64514 event pairs, 1818 based on Foata normal form. 64/8099 useless extension candidates. Maximal degree in co-relation 32614. Up to 4000 conditions per place. [2022-12-06 05:43:27,604 INFO L137 encePairwiseOnDemand]: 14/30 looper letters, 218 selfloop transitions, 159 changer transitions 1/378 dead transitions. [2022-12-06 05:43:27,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 378 transitions, 6892 flow [2022-12-06 05:43:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 05:43:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 05:43:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 94 transitions. [2022-12-06 05:43:27,605 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44761904761904764 [2022-12-06 05:43:27,605 INFO L175 Difference]: Start difference. First operand has 129 places, 343 transitions, 5995 flow. Second operand 7 states and 94 transitions. [2022-12-06 05:43:27,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 378 transitions, 6892 flow [2022-12-06 05:43:27,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 378 transitions, 6859 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-12-06 05:43:27,834 INFO L231 Difference]: Finished difference. Result has 133 places, 333 transitions, 6080 flow [2022-12-06 05:43:27,834 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=5717, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6080, PETRI_PLACES=133, PETRI_TRANSITIONS=333} [2022-12-06 05:43:27,834 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 114 predicate places. [2022-12-06 05:43:27,834 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:27,834 INFO L89 Accepts]: Start accepts. Operand has 133 places, 333 transitions, 6080 flow [2022-12-06 05:43:27,837 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:27,837 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:27,837 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 333 transitions, 6080 flow [2022-12-06 05:43:27,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 333 transitions, 6080 flow [2022-12-06 05:43:27,988 INFO L130 PetriNetUnfolder]: 209/1464 cut-off events. [2022-12-06 05:43:27,989 INFO L131 PetriNetUnfolder]: For 7117/7121 co-relation queries the response was YES. [2022-12-06 05:43:27,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5594 conditions, 1464 events. 209/1464 cut-off events. For 7117/7121 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 16500 event pairs, 0 based on Foata normal form. 1/1340 useless extension candidates. Maximal degree in co-relation 5186. Up to 322 conditions per place. [2022-12-06 05:43:27,999 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 333 transitions, 6080 flow [2022-12-06 05:43:27,999 INFO L188 LiptonReduction]: Number of co-enabled transitions 2294 [2022-12-06 05:43:28,000 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:28,000 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 166 [2022-12-06 05:43:28,000 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 333 transitions, 6080 flow [2022-12-06 05:43:28,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:28,001 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:28,001 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:28,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:28,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:28,201 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:28,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:28,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2071401523, now seen corresponding path program 2 times [2022-12-06 05:43:28,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:28,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582882852] [2022-12-06 05:43:28,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:28,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-06 05:43:28,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:28,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582882852] [2022-12-06 05:43:28,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582882852] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:28,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028791232] [2022-12-06 05:43:28,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 05:43:28,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:28,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:28,313 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:43:28,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-06 05:43:28,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 05:43:28,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:43:28,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 05:43:28,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-06 05:43:28,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 05:43:28,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028791232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:43:28,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 05:43:28,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-12-06 05:43:28,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648822868] [2022-12-06 05:43:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:43:28,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:43:28,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:43:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-06 05:43:28,490 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-06 05:43:28,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 333 transitions, 6080 flow. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:28,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:28,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-06 05:43:28,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:29,644 INFO L130 PetriNetUnfolder]: 4251/8112 cut-off events. [2022-12-06 05:43:29,644 INFO L131 PetriNetUnfolder]: For 52752/52752 co-relation queries the response was YES. [2022-12-06 05:43:29,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36217 conditions, 8112 events. 4251/8112 cut-off events. For 52752/52752 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 65265 event pairs, 2427 based on Foata normal form. 22/8133 useless extension candidates. Maximal degree in co-relation 33830. Up to 3999 conditions per place. [2022-12-06 05:43:29,678 INFO L137 encePairwiseOnDemand]: 20/29 looper letters, 313 selfloop transitions, 16 changer transitions 29/358 dead transitions. [2022-12-06 05:43:29,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 358 transitions, 6920 flow [2022-12-06 05:43:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:43:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:43:29,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2022-12-06 05:43:29,679 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4689655172413793 [2022-12-06 05:43:29,679 INFO L175 Difference]: Start difference. First operand has 132 places, 333 transitions, 6080 flow. Second operand 5 states and 68 transitions. [2022-12-06 05:43:29,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 358 transitions, 6920 flow [2022-12-06 05:43:29,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 358 transitions, 6562 flow, removed 20 selfloop flow, removed 6 redundant places. [2022-12-06 05:43:29,897 INFO L231 Difference]: Finished difference. Result has 131 places, 315 transitions, 5395 flow [2022-12-06 05:43:29,897 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=5722, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5395, PETRI_PLACES=131, PETRI_TRANSITIONS=315} [2022-12-06 05:43:29,898 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 112 predicate places. [2022-12-06 05:43:29,898 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:29,898 INFO L89 Accepts]: Start accepts. Operand has 131 places, 315 transitions, 5395 flow [2022-12-06 05:43:29,901 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:29,901 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:29,901 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 315 transitions, 5395 flow [2022-12-06 05:43:29,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 315 transitions, 5395 flow [2022-12-06 05:43:30,020 INFO L130 PetriNetUnfolder]: 200/1401 cut-off events. [2022-12-06 05:43:30,020 INFO L131 PetriNetUnfolder]: For 7026/7030 co-relation queries the response was YES. [2022-12-06 05:43:30,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5113 conditions, 1401 events. 200/1401 cut-off events. For 7026/7030 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 15605 event pairs, 0 based on Foata normal form. 1/1281 useless extension candidates. Maximal degree in co-relation 4705. Up to 301 conditions per place. [2022-12-06 05:43:30,032 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 315 transitions, 5395 flow [2022-12-06 05:43:30,032 INFO L188 LiptonReduction]: Number of co-enabled transitions 2170 [2022-12-06 05:43:30,033 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:30,034 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 136 [2022-12-06 05:43:30,034 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 315 transitions, 5395 flow [2022-12-06 05:43:30,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:30,034 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:30,034 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:30,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:30,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:30,237 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:30,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:30,237 INFO L85 PathProgramCache]: Analyzing trace with hash -808382685, now seen corresponding path program 1 times [2022-12-06 05:43:30,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:30,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288174636] [2022-12-06 05:43:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:30,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:43:30,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:30,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288174636] [2022-12-06 05:43:30,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288174636] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:30,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457749881] [2022-12-06 05:43:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:30,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:30,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:30,367 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:43:30,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-06 05:43:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:30,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-06 05:43:30,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:30,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:43:30,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:30,608 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-06 05:43:30,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457749881] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:30,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:30,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 14 [2022-12-06 05:43:30,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66444886] [2022-12-06 05:43:30,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:30,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 05:43:30,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:30,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 05:43:30,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-12-06 05:43:30,609 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-06 05:43:30,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 315 transitions, 5395 flow. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:30,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:30,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-06 05:43:30,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:31,959 INFO L130 PetriNetUnfolder]: 3885/7435 cut-off events. [2022-12-06 05:43:31,959 INFO L131 PetriNetUnfolder]: For 46038/46038 co-relation queries the response was YES. [2022-12-06 05:43:31,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31791 conditions, 7435 events. 3885/7435 cut-off events. For 46038/46038 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 58599 event pairs, 1807 based on Foata normal form. 48/7482 useless extension candidates. Maximal degree in co-relation 30572. Up to 3999 conditions per place. [2022-12-06 05:43:31,998 INFO L137 encePairwiseOnDemand]: 16/29 looper letters, 224 selfloop transitions, 74 changer transitions 87/385 dead transitions. [2022-12-06 05:43:31,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 385 transitions, 6247 flow [2022-12-06 05:43:31,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 05:43:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 05:43:31,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 133 transitions. [2022-12-06 05:43:31,999 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35278514588859416 [2022-12-06 05:43:31,999 INFO L175 Difference]: Start difference. First operand has 130 places, 315 transitions, 5395 flow. Second operand 13 states and 133 transitions. [2022-12-06 05:43:31,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 385 transitions, 6247 flow [2022-12-06 05:43:32,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 385 transitions, 6191 flow, removed 27 selfloop flow, removed 2 redundant places. [2022-12-06 05:43:32,195 INFO L231 Difference]: Finished difference. Result has 145 places, 274 transitions, 4823 flow [2022-12-06 05:43:32,196 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4968, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4823, PETRI_PLACES=145, PETRI_TRANSITIONS=274} [2022-12-06 05:43:32,196 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 126 predicate places. [2022-12-06 05:43:32,196 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:32,196 INFO L89 Accepts]: Start accepts. Operand has 145 places, 274 transitions, 4823 flow [2022-12-06 05:43:32,199 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:32,199 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:32,199 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 274 transitions, 4823 flow [2022-12-06 05:43:32,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 274 transitions, 4823 flow [2022-12-06 05:43:32,324 INFO L130 PetriNetUnfolder]: 182/1218 cut-off events. [2022-12-06 05:43:32,325 INFO L131 PetriNetUnfolder]: For 6785/6789 co-relation queries the response was YES. [2022-12-06 05:43:32,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4630 conditions, 1218 events. 182/1218 cut-off events. For 6785/6789 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 12928 event pairs, 0 based on Foata normal form. 1/1114 useless extension candidates. Maximal degree in co-relation 4529. Up to 270 conditions per place. [2022-12-06 05:43:32,337 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 274 transitions, 4823 flow [2022-12-06 05:43:32,337 INFO L188 LiptonReduction]: Number of co-enabled transitions 1872 [2022-12-06 05:43:32,338 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:43:32,339 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 143 [2022-12-06 05:43:32,339 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 274 transitions, 4823 flow [2022-12-06 05:43:32,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:32,339 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:32,339 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:32,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:32,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:32,544 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:32,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:32,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1610988145, now seen corresponding path program 1 times [2022-12-06 05:43:32,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:32,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371923973] [2022-12-06 05:43:32,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:32,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:43:32,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:32,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371923973] [2022-12-06 05:43:32,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371923973] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:32,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555220041] [2022-12-06 05:43:32,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:32,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:32,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:32,693 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:43:32,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-06 05:43:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:32,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-06 05:43:32,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:32,919 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:43:32,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:33,013 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-06 05:43:33,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555220041] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:33,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:33,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 17 [2022-12-06 05:43:33,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872326953] [2022-12-06 05:43:33,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:33,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 05:43:33,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:33,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 05:43:33,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-12-06 05:43:33,015 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 05:43:33,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 274 transitions, 4823 flow. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:33,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:33,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 05:43:33,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:34,121 INFO L130 PetriNetUnfolder]: 2582/4890 cut-off events. [2022-12-06 05:43:34,121 INFO L131 PetriNetUnfolder]: For 25622/25622 co-relation queries the response was YES. [2022-12-06 05:43:34,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20280 conditions, 4890 events. 2582/4890 cut-off events. For 25622/25622 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 35792 event pairs, 1576 based on Foata normal form. 44/4933 useless extension candidates. Maximal degree in co-relation 20233. Up to 3999 conditions per place. [2022-12-06 05:43:34,148 INFO L137 encePairwiseOnDemand]: 22/28 looper letters, 172 selfloop transitions, 0 changer transitions 134/306 dead transitions. [2022-12-06 05:43:34,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 306 transitions, 4206 flow [2022-12-06 05:43:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 05:43:34,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 05:43:34,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 148 transitions. [2022-12-06 05:43:34,149 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.33035714285714285 [2022-12-06 05:43:34,150 INFO L175 Difference]: Start difference. First operand has 136 places, 274 transitions, 4823 flow. Second operand 16 states and 148 transitions. [2022-12-06 05:43:34,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 306 transitions, 4206 flow [2022-12-06 05:43:34,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 306 transitions, 3985 flow, removed 81 selfloop flow, removed 9 redundant places. [2022-12-06 05:43:34,284 INFO L231 Difference]: Finished difference. Result has 142 places, 172 transitions, 2489 flow [2022-12-06 05:43:34,284 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=3102, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2489, PETRI_PLACES=142, PETRI_TRANSITIONS=172} [2022-12-06 05:43:34,285 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 123 predicate places. [2022-12-06 05:43:34,285 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:34,285 INFO L89 Accepts]: Start accepts. Operand has 142 places, 172 transitions, 2489 flow [2022-12-06 05:43:34,286 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:34,286 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:34,286 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 172 transitions, 2489 flow [2022-12-06 05:43:34,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 172 transitions, 2489 flow [2022-12-06 05:43:34,337 INFO L130 PetriNetUnfolder]: 132/718 cut-off events. [2022-12-06 05:43:34,338 INFO L131 PetriNetUnfolder]: For 2428/2431 co-relation queries the response was YES. [2022-12-06 05:43:34,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2321 conditions, 718 events. 132/718 cut-off events. For 2428/2431 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6669 event pairs, 0 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 2097. Up to 198 conditions per place. [2022-12-06 05:43:34,342 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 172 transitions, 2489 flow [2022-12-06 05:43:34,343 INFO L188 LiptonReduction]: Number of co-enabled transitions 1174 [2022-12-06 05:43:34,344 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,344 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,344 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,344 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,431 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,431 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,431 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,431 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,519 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,519 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,519 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,519 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:34,726 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 05:43:34,726 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 441 [2022-12-06 05:43:34,727 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 172 transitions, 2497 flow [2022-12-06 05:43:34,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:34,727 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:43:34,727 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:43:34,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-06 05:43:34,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:34,931 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:43:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:43:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash -129564352, now seen corresponding path program 1 times [2022-12-06 05:43:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:43:34,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484666695] [2022-12-06 05:43:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:34,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:43:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:35,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:43:35,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484666695] [2022-12-06 05:43:35,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484666695] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:43:35,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514477330] [2022-12-06 05:43:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:43:35,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:35,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:43:35,232 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:43:35,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-06 05:43:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:43:35,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-06 05:43:35,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:43:35,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 05:43:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:35,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:43:35,495 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-06 05:43:35,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 13 [2022-12-06 05:43:35,525 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:43:35,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514477330] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:43:35,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:43:35,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 17 [2022-12-06 05:43:35,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536409211] [2022-12-06 05:43:35,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:43:35,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 05:43:35,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:43:35,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 05:43:35,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-12-06 05:43:35,526 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 05:43:35,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 172 transitions, 2497 flow. Second operand has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:43:35,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:43:35,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 05:43:35,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:43:36,579 INFO L130 PetriNetUnfolder]: 2254/4147 cut-off events. [2022-12-06 05:43:36,579 INFO L131 PetriNetUnfolder]: For 16652/16652 co-relation queries the response was YES. [2022-12-06 05:43:36,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16509 conditions, 4147 events. 2254/4147 cut-off events. For 16652/16652 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 29025 event pairs, 645 based on Foata normal form. 1/4143 useless extension candidates. Maximal degree in co-relation 15753. Up to 3309 conditions per place. [2022-12-06 05:43:36,598 INFO L137 encePairwiseOnDemand]: 18/28 looper letters, 186 selfloop transitions, 41 changer transitions 32/259 dead transitions. [2022-12-06 05:43:36,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 259 transitions, 3402 flow [2022-12-06 05:43:36,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 05:43:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 05:43:36,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 118 transitions. [2022-12-06 05:43:36,599 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35119047619047616 [2022-12-06 05:43:36,599 INFO L175 Difference]: Start difference. First operand has 109 places, 172 transitions, 2497 flow. Second operand 12 states and 118 transitions. [2022-12-06 05:43:36,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 259 transitions, 3402 flow [2022-12-06 05:43:36,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 259 transitions, 3157 flow, removed 120 selfloop flow, removed 9 redundant places. [2022-12-06 05:43:36,675 INFO L231 Difference]: Finished difference. Result has 114 places, 180 transitions, 2498 flow [2022-12-06 05:43:36,675 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2264, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2498, PETRI_PLACES=114, PETRI_TRANSITIONS=180} [2022-12-06 05:43:36,676 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 95 predicate places. [2022-12-06 05:43:36,676 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:43:36,676 INFO L89 Accepts]: Start accepts. Operand has 114 places, 180 transitions, 2498 flow [2022-12-06 05:43:36,677 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:43:36,677 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:43:36,677 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 180 transitions, 2498 flow [2022-12-06 05:43:36,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 180 transitions, 2498 flow [2022-12-06 05:43:36,730 INFO L130 PetriNetUnfolder]: 138/751 cut-off events. [2022-12-06 05:43:36,731 INFO L131 PetriNetUnfolder]: For 2387/2391 co-relation queries the response was YES. [2022-12-06 05:43:36,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2307 conditions, 751 events. 138/751 cut-off events. For 2387/2391 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 7060 event pairs, 0 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 2212. Up to 207 conditions per place. [2022-12-06 05:43:36,736 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 180 transitions, 2498 flow [2022-12-06 05:43:36,736 INFO L188 LiptonReduction]: Number of co-enabled transitions 1226 [2022-12-06 05:43:36,737 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:36,737 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:36,737 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:36,737 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 05:43:36,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-12-06 05:43:36,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:43:36,939 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Function c_aux_v_thread1Thread1of1ForFork0_#t~nondet1#1_144 is already defined. at de.uni_freiburg.informatik.ultimate.logic.NoopScript.declareFun(NoopScript.java:229) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.declareFun(Scriptor.java:115) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.declareFun(WrapperScript.java:137) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.declareFun(WrapperScript.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.declareFun(HistoryRecordingScript.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.declareFun(ManagedScript.java:172) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramVarUtils.constructConstantForAuxVar(ProgramVarUtils.java:117) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.computeClosedFormula(UnmodifiableTransFormula.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:90) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:324) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.BranchEncoderRenaming.applyToTransFormula(BranchEncoderRenaming.java:114) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.BranchEncoderRenaming.applyToIcfgEdge(BranchEncoderRenaming.java:134) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.IcfgCompositionFactory.composeSequential(IcfgCompositionFactory.java:119) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.IcfgCompositionFactory.composeSequential(IcfgCompositionFactory.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.CompositionFactoryWithCacheUpdate.composeSequential(CompositionFactoryWithCacheUpdate.java:67) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.CompositionFactoryWithCacheUpdate.composeSequential(CompositionFactoryWithCacheUpdate.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SequenceRule.executeComposition(SequenceRule.java:724) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SequenceRule.applyInternal(SequenceRule.java:150) at de.uni_freiburg.informatik.ultimate.automata.partialorder.ReductionRule.apply(ReductionRule.java:80) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleWrapper(LiptonReduction.java:252) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.performReduction(LiptonReduction.java:199) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:143) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-06 05:43:36,942 INFO L158 Benchmark]: Toolchain (without parser) took 46775.17ms. Allocated memory was 185.6MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 162.1MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 772.3MB. Max. memory is 8.0GB. [2022-12-06 05:43:36,942 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 05:43:36,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.08ms. Allocated memory is still 185.6MB. Free memory was 161.6MB in the beginning and 150.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 05:43:36,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.65ms. Allocated memory is still 185.6MB. Free memory was 150.0MB in the beginning and 147.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:43:36,943 INFO L158 Benchmark]: Boogie Preprocessor took 26.93ms. Allocated memory is still 185.6MB. Free memory was 147.9MB in the beginning and 146.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:43:36,943 INFO L158 Benchmark]: RCFGBuilder took 560.02ms. Allocated memory is still 185.6MB. Free memory was 146.3MB in the beginning and 124.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-06 05:43:36,943 INFO L158 Benchmark]: TraceAbstraction took 45886.73ms. Allocated memory was 185.6MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 124.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 734.6MB. Max. memory is 8.0GB. [2022-12-06 05:43:36,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 248.08ms. Allocated memory is still 185.6MB. Free memory was 161.6MB in the beginning and 150.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.65ms. Allocated memory is still 185.6MB. Free memory was 150.0MB in the beginning and 147.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.93ms. Allocated memory is still 185.6MB. Free memory was 147.9MB in the beginning and 146.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 560.02ms. Allocated memory is still 185.6MB. Free memory was 146.3MB in the beginning and 124.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 45886.73ms. Allocated memory was 185.6MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 124.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 734.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 94 PlacesBefore, 19 PlacesAfterwards, 96 TransitionsBefore, 15 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 58 TrivialYvCompositions, 17 ConcurrentYvCompositions, 6 ChoiceCompositions, 81 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 200, independent: 200, independent conditional: 200, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 200, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 200, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 200, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 200, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 200, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 200, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 200, unknown conditional: 0, unknown unconditional: 200] , Statistics on independence cache: Total cache size (in pairs): 335, Positive cache size: 335, Positive conditional cache size: 0, Positive unconditional cache size: 335, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 18 PlacesBefore, 18 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 20 PlacesBefore, 20 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 23 PlacesBefore, 22 PlacesAfterwards, 18 TransitionsBefore, 17 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 25 PlacesBefore, 25 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 28 PlacesBefore, 28 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 76 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 30 PlacesBefore, 30 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 35 PlacesBefore, 34 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 54 PlacesBefore, 54 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, independent: 11, independent conditional: 11, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 13, independent: 11, independent conditional: 11, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13, independent: 11, independent conditional: 11, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13, independent: 11, independent conditional: 11, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 4, independent conditional: 4, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 24, Positive conditional cache size: 24, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 60 PlacesBefore, 60 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 220 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, independent: 8, independent conditional: 8, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10, independent: 8, independent conditional: 8, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12, independent: 8, independent conditional: 8, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 8, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 27, Positive conditional cache size: 27, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 75 PlacesBefore, 74 PlacesAfterwards, 75 TransitionsBefore, 74 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 63, Positive conditional cache size: 63, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 112 PlacesBefore, 112 PlacesAfterwards, 111 TransitionsBefore, 111 TransitionsAfterwards, 668 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 25, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 100 PlacesBefore, 100 PlacesAfterwards, 108 TransitionsBefore, 108 TransitionsAfterwards, 654 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 103 PlacesBefore, 103 PlacesAfterwards, 123 TransitionsBefore, 123 TransitionsAfterwards, 752 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 107 PlacesBefore, 107 PlacesAfterwards, 160 TransitionsBefore, 160 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 111 PlacesBefore, 111 PlacesAfterwards, 247 TransitionsBefore, 247 TransitionsAfterwards, 1678 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 126 PlacesBefore, 126 PlacesAfterwards, 251 TransitionsBefore, 251 TransitionsAfterwards, 1710 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 119 PlacesBefore, 119 PlacesAfterwards, 233 TransitionsBefore, 233 TransitionsAfterwards, 1582 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 129 PlacesBefore, 129 PlacesAfterwards, 343 TransitionsBefore, 343 TransitionsAfterwards, 2362 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 132 PlacesBefore, 132 PlacesAfterwards, 333 TransitionsBefore, 333 TransitionsAfterwards, 2294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 130 PlacesBefore, 130 PlacesAfterwards, 315 TransitionsBefore, 315 TransitionsAfterwards, 2170 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 136 PlacesBefore, 136 PlacesAfterwards, 274 TransitionsBefore, 274 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 267, Positive conditional cache size: 267, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 109 PlacesBefore, 109 PlacesAfterwards, 172 TransitionsBefore, 172 TransitionsAfterwards, 1174 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 350, Positive cache size: 348, Positive conditional cache size: 348, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - ExceptionOrErrorResult: SMTLIBException: Function c_aux_v_thread1Thread1of1ForFork0_#t~nondet1#1_144 is already defined. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Function c_aux_v_thread1Thread1of1ForFork0_#t~nondet1#1_144 is already defined.: de.uni_freiburg.informatik.ultimate.logic.NoopScript.declareFun(NoopScript.java:229) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 05:43:36,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...