/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-RepeatedSemanticLbeWithDisjunctivePredicates.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 07:53:08,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:53:08,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:53:08,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:53:08,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:53:08,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:53:08,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:53:08,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:53:08,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:53:08,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:53:08,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:53:08,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:53:08,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:53:08,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:53:08,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:53:08,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:53:08,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:53:08,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:53:08,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:53:08,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:53:08,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:53:08,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:53:08,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:53:08,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:53:08,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:53:08,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:53:08,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:53:08,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:53:08,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:53:08,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:53:08,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:53:08,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:53:08,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:53:08,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:53:08,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:53:08,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:53:08,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:53:08,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:53:08,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:53:08,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:53:08,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:53:08,457 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 07:53:08,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:53:08,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:53:08,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:53:08,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:53:08,485 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:53:08,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:53:08,486 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:53:08,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:53:08,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:53:08,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:53:08,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:53:08,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:53:08,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:53:08,487 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:53:08,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:53:08,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:53:08,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:53:08,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:53:08,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:53:08,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:53:08,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:53:08,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:53:08,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:53:08,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:53:08,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:53:08,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:53:08,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:53:08,489 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:53:08,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:53:08,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:53:08,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:53:08,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:53:08,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:53:08,739 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:53:08,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-context1.wvr.c [2022-12-06 07:53:09,837 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:53:10,031 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:53:10,032 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-context1.wvr.c [2022-12-06 07:53:10,053 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aace6387/26e0e866aa464c038e6b4bec8c26185c/FLAG65e7f05a1 [2022-12-06 07:53:10,065 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aace6387/26e0e866aa464c038e6b4bec8c26185c [2022-12-06 07:53:10,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:53:10,068 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:53:10,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:53:10,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:53:10,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:53:10,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4e021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10, skipping insertion in model container [2022-12-06 07:53:10,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:53:10,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:53:10,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:53:10,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:53:10,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:53:10,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:53:10,246 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 07:53:10,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:53:10,268 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:53:10,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:53:10,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:53:10,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:53:10,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:53:10,297 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 07:53:10,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:53:10,313 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:53:10,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10 WrapperNode [2022-12-06 07:53:10,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:53:10,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:53:10,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:53:10,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:53:10,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,339 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 131 [2022-12-06 07:53:10,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:53:10,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:53:10,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:53:10,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:53:10,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,360 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:53:10,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:53:10,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:53:10,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:53:10,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (1/1) ... [2022-12-06 07:53:10,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:53:10,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:10,389 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 07:53:10,410 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 07:53:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:53:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 07:53:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 07:53:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:53:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:53:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:53:10,436 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 07:53:10,507 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:53:10,508 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:53:10,755 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:53:10,844 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:53:10,844 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-06 07:53:10,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:53:10 BoogieIcfgContainer [2022-12-06 07:53:10,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:53:10,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:53:10,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:53:10,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:53:10,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:53:10" (1/3) ... [2022-12-06 07:53:10,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59592590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:53:10, skipping insertion in model container [2022-12-06 07:53:10,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:10" (2/3) ... [2022-12-06 07:53:10,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59592590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:53:10, skipping insertion in model container [2022-12-06 07:53:10,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:53:10" (3/3) ... [2022-12-06 07:53:10,851 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2022-12-06 07:53:10,870 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:53:10,870 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:53:10,870 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:53:10,926 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 07:53:10,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 106 transitions, 228 flow [2022-12-06 07:53:11,024 INFO L130 PetriNetUnfolder]: 9/104 cut-off events. [2022-12-06 07:53:11,024 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:53:11,029 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 07:53:11,030 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 106 transitions, 228 flow [2022-12-06 07:53:11,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 96 transitions, 204 flow [2022-12-06 07:53:11,033 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:11,048 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 96 transitions, 204 flow [2022-12-06 07:53:11,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 96 transitions, 204 flow [2022-12-06 07:53:11,077 INFO L130 PetriNetUnfolder]: 9/96 cut-off events. [2022-12-06 07:53:11,077 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:53:11,078 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 07:53:11,080 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 96 transitions, 204 flow [2022-12-06 07:53:11,080 INFO L188 LiptonReduction]: Number of co-enabled transitions 368 [2022-12-06 07:53:14,026 INFO L203 LiptonReduction]: Total number of compositions: 81 [2022-12-06 07:53:14,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:53:14,040 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;@3719a444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:53:14,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 07:53:14,043 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2022-12-06 07:53:14,043 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:53:14,043 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:14,044 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:14,044 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 07:53:14,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2145519978, now seen corresponding path program 1 times [2022-12-06 07:53:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:14,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427860112] [2022-12-06 07:53:14,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:14,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:14,289 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 07:53:14,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:14,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427860112] [2022-12-06 07:53:14,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427860112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:14,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:53:14,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 07:53:14,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113296103] [2022-12-06 07:53:14,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:14,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:53:14,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:14,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:53:14,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:53:14,314 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 07:53:14,315 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 07:53:14,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:14,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 07:53:14,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:14,354 INFO L130 PetriNetUnfolder]: 38/71 cut-off events. [2022-12-06 07:53:14,354 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-06 07:53:14,355 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 07:53:14,356 INFO L137 encePairwiseOnDemand]: 12/15 looper letters, 19 selfloop transitions, 2 changer transitions 2/23 dead transitions. [2022-12-06 07:53:14,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 23 transitions, 110 flow [2022-12-06 07:53:14,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:53:14,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:53:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2022-12-06 07:53:14,364 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2022-12-06 07:53:14,365 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 42 flow. Second operand 3 states and 24 transitions. [2022-12-06 07:53:14,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 23 transitions, 110 flow [2022-12-06 07:53:14,367 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 07:53:14,368 INFO L231 Difference]: Finished difference. Result has 18 places, 16 transitions, 46 flow [2022-12-06 07:53:14,369 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 07:53:14,371 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, -1 predicate places. [2022-12-06 07:53:14,372 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:14,372 INFO L89 Accepts]: Start accepts. Operand has 18 places, 16 transitions, 46 flow [2022-12-06 07:53:14,374 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:14,374 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:14,374 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 16 transitions, 46 flow [2022-12-06 07:53:14,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 18 places, 16 transitions, 46 flow [2022-12-06 07:53:14,378 INFO L130 PetriNetUnfolder]: 3/18 cut-off events. [2022-12-06 07:53:14,378 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:53:14,378 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 07:53:14,379 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 16 transitions, 46 flow [2022-12-06 07:53:14,379 INFO L188 LiptonReduction]: Number of co-enabled transitions 42 [2022-12-06 07:53:14,379 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:14,380 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 8 [2022-12-06 07:53:14,380 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 16 transitions, 46 flow [2022-12-06 07:53:14,380 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 07:53:14,381 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:14,381 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:14,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:53:14,381 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 07:53:14,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash -799611484, now seen corresponding path program 1 times [2022-12-06 07:53:14,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:14,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880280980] [2022-12-06 07:53:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:14,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:14,437 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 07:53:14,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:14,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880280980] [2022-12-06 07:53:14,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880280980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:14,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:53:14,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 07:53:14,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531777735] [2022-12-06 07:53:14,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:14,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:53:14,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:14,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:53:14,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:53:14,439 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 07:53:14,439 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 07:53:14,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:14,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 07:53:14,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:14,469 INFO L130 PetriNetUnfolder]: 52/102 cut-off events. [2022-12-06 07:53:14,469 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-06 07:53:14,470 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 07:53:14,470 INFO L137 encePairwiseOnDemand]: 12/15 looper letters, 18 selfloop transitions, 2 changer transitions 5/25 dead transitions. [2022-12-06 07:53:14,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 25 transitions, 117 flow [2022-12-06 07:53:14,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:53:14,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:53:14,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-12-06 07:53:14,471 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-06 07:53:14,471 INFO L175 Difference]: Start difference. First operand has 18 places, 16 transitions, 46 flow. Second operand 3 states and 25 transitions. [2022-12-06 07:53:14,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 25 transitions, 117 flow [2022-12-06 07:53:14,472 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 07:53:14,472 INFO L231 Difference]: Finished difference. Result has 20 places, 17 transitions, 56 flow [2022-12-06 07:53:14,472 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 07:53:14,473 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2022-12-06 07:53:14,473 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:14,473 INFO L89 Accepts]: Start accepts. Operand has 20 places, 17 transitions, 56 flow [2022-12-06 07:53:14,473 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:14,473 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:14,474 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 17 transitions, 56 flow [2022-12-06 07:53:14,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 17 transitions, 56 flow [2022-12-06 07:53:14,477 INFO L130 PetriNetUnfolder]: 4/24 cut-off events. [2022-12-06 07:53:14,477 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 07:53:14,477 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 07:53:14,477 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 17 transitions, 56 flow [2022-12-06 07:53:14,477 INFO L188 LiptonReduction]: Number of co-enabled transitions 48 [2022-12-06 07:53:14,478 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:14,479 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6 [2022-12-06 07:53:14,479 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 17 transitions, 56 flow [2022-12-06 07:53:14,479 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 07:53:14,479 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:14,479 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:14,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 07:53:14,479 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 07:53:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1695201957, now seen corresponding path program 1 times [2022-12-06 07:53:14,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:14,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900413951] [2022-12-06 07:53:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:14,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:14,589 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 07:53:14,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:14,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900413951] [2022-12-06 07:53:14,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900413951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:14,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:53:14,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:53:14,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162572037] [2022-12-06 07:53:14,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:14,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:53:14,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:14,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:53:14,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:53:14,591 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 07:53:14,591 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 07:53:14,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:14,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 07:53:14,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:14,638 INFO L130 PetriNetUnfolder]: 61/130 cut-off events. [2022-12-06 07:53:14,639 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-06 07:53:14,639 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 07:53:14,639 INFO L137 encePairwiseOnDemand]: 11/15 looper letters, 16 selfloop transitions, 2 changer transitions 10/28 dead transitions. [2022-12-06 07:53:14,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 28 transitions, 138 flow [2022-12-06 07:53:14,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:53:14,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:53:14,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2022-12-06 07:53:14,641 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.45 [2022-12-06 07:53:14,641 INFO L175 Difference]: Start difference. First operand has 20 places, 17 transitions, 56 flow. Second operand 4 states and 27 transitions. [2022-12-06 07:53:14,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 28 transitions, 138 flow [2022-12-06 07:53:14,641 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 07:53:14,642 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 68 flow [2022-12-06 07:53:14,642 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 07:53:14,642 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2022-12-06 07:53:14,642 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:14,642 INFO L89 Accepts]: Start accepts. Operand has 24 places, 18 transitions, 68 flow [2022-12-06 07:53:14,643 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:14,643 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:14,643 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 18 transitions, 68 flow [2022-12-06 07:53:14,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 18 transitions, 68 flow [2022-12-06 07:53:14,646 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2022-12-06 07:53:14,646 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:53:14,646 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 07:53:14,646 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 18 transitions, 68 flow [2022-12-06 07:53:14,647 INFO L188 LiptonReduction]: Number of co-enabled transitions 48 [2022-12-06 07:53:15,367 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:53:15,368 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 726 [2022-12-06 07:53:15,368 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 64 flow [2022-12-06 07:53:15,368 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 07:53:15,368 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:15,368 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:15,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 07:53:15,368 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 07:53:15,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:15,369 INFO L85 PathProgramCache]: Analyzing trace with hash -622775814, now seen corresponding path program 1 times [2022-12-06 07:53:15,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:15,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108188337] [2022-12-06 07:53:15,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:15,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:15,581 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 07:53:15,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:15,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108188337] [2022-12-06 07:53:15,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108188337] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:15,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237565455] [2022-12-06 07:53:15,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:15,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:15,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:15,594 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 07:53:15,651 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 07:53:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:15,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-06 07:53:15,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:15,790 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 07:53:15,796 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 07:53:15,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:15,823 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-06 07:53:15,823 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 07:53:15,833 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 07:53:15,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237565455] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:15,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:15,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 6 [2022-12-06 07:53:15,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598145644] [2022-12-06 07:53:15,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:15,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 07:53:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:15,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 07:53:15,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 07:53:15,835 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 07:53:15,835 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 07:53:15,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:15,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 07:53:15,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:15,915 INFO L130 PetriNetUnfolder]: 86/164 cut-off events. [2022-12-06 07:53:15,915 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-12-06 07:53:15,916 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 07:53:15,916 INFO L137 encePairwiseOnDemand]: 10/15 looper letters, 27 selfloop transitions, 6 changer transitions 9/42 dead transitions. [2022-12-06 07:53:15,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 42 transitions, 216 flow [2022-12-06 07:53:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:53:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:53:15,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-12-06 07:53:15,918 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.56 [2022-12-06 07:53:15,918 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 64 flow. Second operand 5 states and 42 transitions. [2022-12-06 07:53:15,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 42 transitions, 216 flow [2022-12-06 07:53:15,918 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 07:53:15,919 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 91 flow [2022-12-06 07:53:15,919 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 07:53:15,920 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 6 predicate places. [2022-12-06 07:53:15,920 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:15,920 INFO L89 Accepts]: Start accepts. Operand has 25 places, 20 transitions, 91 flow [2022-12-06 07:53:15,920 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:15,920 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:15,921 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 20 transitions, 91 flow [2022-12-06 07:53:15,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 20 transitions, 91 flow [2022-12-06 07:53:15,925 INFO L130 PetriNetUnfolder]: 7/39 cut-off events. [2022-12-06 07:53:15,926 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-06 07:53:15,926 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 07:53:15,927 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 20 transitions, 91 flow [2022-12-06 07:53:15,927 INFO L188 LiptonReduction]: Number of co-enabled transitions 66 [2022-12-06 07:53:15,927 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:15,928 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 8 [2022-12-06 07:53:15,928 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 91 flow [2022-12-06 07:53:15,928 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 07:53:15,928 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:15,928 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:15,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-06 07:53:16,134 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 07:53:16,135 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 07:53:16,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:16,135 INFO L85 PathProgramCache]: Analyzing trace with hash -724110050, now seen corresponding path program 2 times [2022-12-06 07:53:16,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:16,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394930040] [2022-12-06 07:53:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:16,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:16,352 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 07:53:16,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:16,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394930040] [2022-12-06 07:53:16,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394930040] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:16,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784730122] [2022-12-06 07:53:16,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 07:53:16,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:16,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:16,367 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 07:53:16,387 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 07:53:16,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 07:53:16,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 07:53:16,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-06 07:53:16,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:16,476 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 07:53:16,498 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 07:53:16,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:53:16,548 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 07:53:16,568 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 07:53:16,571 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 07:53:16,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:16,669 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 07:53:16,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784730122] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:16,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:16,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-12-06 07:53:16,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458434302] [2022-12-06 07:53:16,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:16,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 07:53:16,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:16,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 07:53:16,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=133, Unknown=6, NotChecked=0, Total=182 [2022-12-06 07:53:16,671 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 07:53:16,671 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 07:53:16,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:16,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 07:53:16,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:16,808 INFO L130 PetriNetUnfolder]: 102/193 cut-off events. [2022-12-06 07:53:16,809 INFO L131 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2022-12-06 07:53:16,809 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 07:53:16,810 INFO L137 encePairwiseOnDemand]: 11/15 looper letters, 27 selfloop transitions, 6 changer transitions 9/42 dead transitions. [2022-12-06 07:53:16,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 42 transitions, 234 flow [2022-12-06 07:53:16,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:53:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:53:16,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-12-06 07:53:16,811 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2022-12-06 07:53:16,811 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 91 flow. Second operand 5 states and 41 transitions. [2022-12-06 07:53:16,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 42 transitions, 234 flow [2022-12-06 07:53:16,812 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 07:53:16,813 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 112 flow [2022-12-06 07:53:16,813 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 07:53:16,814 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2022-12-06 07:53:16,814 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:16,814 INFO L89 Accepts]: Start accepts. Operand has 28 places, 21 transitions, 112 flow [2022-12-06 07:53:16,815 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:16,815 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:16,815 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 21 transitions, 112 flow [2022-12-06 07:53:16,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 112 flow [2022-12-06 07:53:16,838 INFO L130 PetriNetUnfolder]: 7/42 cut-off events. [2022-12-06 07:53:16,838 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-06 07:53:16,838 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 07:53:16,838 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 21 transitions, 112 flow [2022-12-06 07:53:16,839 INFO L188 LiptonReduction]: Number of co-enabled transitions 76 [2022-12-06 07:53:16,839 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:16,840 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 26 [2022-12-06 07:53:16,840 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 112 flow [2022-12-06 07:53:16,840 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 07:53:16,840 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:16,840 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:16,860 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 07:53:17,045 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 07:53:17,046 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 07:53:17,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:17,046 INFO L85 PathProgramCache]: Analyzing trace with hash 563480670, now seen corresponding path program 3 times [2022-12-06 07:53:17,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:17,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976373586] [2022-12-06 07:53:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:17,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:17,095 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 07:53:17,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:17,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976373586] [2022-12-06 07:53:17,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976373586] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:17,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636382086] [2022-12-06 07:53:17,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 07:53:17,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:17,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:17,097 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 07:53:17,100 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 07:53:17,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-06 07:53:17,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 07:53:17,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-06 07:53:17,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:17,170 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 07:53:17,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:17,188 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 07:53:17,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636382086] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:17,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:17,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 4 [2022-12-06 07:53:17,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715051840] [2022-12-06 07:53:17,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:17,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:53:17,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:17,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:53:17,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-06 07:53:17,189 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 07:53:17,189 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 07:53:17,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:17,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 07:53:17,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:17,246 INFO L130 PetriNetUnfolder]: 218/421 cut-off events. [2022-12-06 07:53:17,246 INFO L131 PetriNetUnfolder]: For 682/682 co-relation queries the response was YES. [2022-12-06 07:53:17,247 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 07:53:17,249 INFO L137 encePairwiseOnDemand]: 12/15 looper letters, 36 selfloop transitions, 9 changer transitions 0/45 dead transitions. [2022-12-06 07:53:17,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 316 flow [2022-12-06 07:53:17,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:53:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:53:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-12-06 07:53:17,250 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2022-12-06 07:53:17,250 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 112 flow. Second operand 4 states and 37 transitions. [2022-12-06 07:53:17,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 316 flow [2022-12-06 07:53:17,263 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 07:53:17,264 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 202 flow [2022-12-06 07:53:17,264 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 07:53:17,265 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 11 predicate places. [2022-12-06 07:53:17,265 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:17,265 INFO L89 Accepts]: Start accepts. Operand has 30 places, 28 transitions, 202 flow [2022-12-06 07:53:17,266 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:17,266 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:17,266 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 28 transitions, 202 flow [2022-12-06 07:53:17,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 202 flow [2022-12-06 07:53:17,272 INFO L130 PetriNetUnfolder]: 12/83 cut-off events. [2022-12-06 07:53:17,272 INFO L131 PetriNetUnfolder]: For 99/102 co-relation queries the response was YES. [2022-12-06 07:53:17,272 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 07:53:17,273 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 28 transitions, 202 flow [2022-12-06 07:53:17,273 INFO L188 LiptonReduction]: Number of co-enabled transitions 128 [2022-12-06 07:53:17,273 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:17,274 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-06 07:53:17,274 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 202 flow [2022-12-06 07:53:17,274 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 07:53:17,274 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:17,274 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:17,281 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 07:53:17,479 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 07:53:17,479 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 07:53:17,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:17,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1826688405, now seen corresponding path program 4 times [2022-12-06 07:53:17,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:17,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548088475] [2022-12-06 07:53:17,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:17,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:17,547 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 07:53:17,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:17,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548088475] [2022-12-06 07:53:17,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548088475] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:17,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866207658] [2022-12-06 07:53:17,548 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 07:53:17,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:17,564 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 07:53:17,565 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 07:53:17,635 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 07:53:17,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 07:53:17,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 07:53:17,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:17,680 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 07:53:17,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:53:17,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866207658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:17,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 07:53:17,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-12-06 07:53:17,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145007702] [2022-12-06 07:53:17,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:17,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:53:17,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:17,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:53:17,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 07:53:17,682 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 07:53:17,682 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 07:53:17,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:17,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 07:53:17,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:17,826 INFO L130 PetriNetUnfolder]: 333/671 cut-off events. [2022-12-06 07:53:17,826 INFO L131 PetriNetUnfolder]: For 1483/1483 co-relation queries the response was YES. [2022-12-06 07:53:17,827 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 07:53:17,828 INFO L137 encePairwiseOnDemand]: 10/15 looper letters, 27 selfloop transitions, 2 changer transitions 24/53 dead transitions. [2022-12-06 07:53:17,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 53 transitions, 436 flow [2022-12-06 07:53:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:53:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:53:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2022-12-06 07:53:17,829 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.48 [2022-12-06 07:53:17,829 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 202 flow. Second operand 5 states and 36 transitions. [2022-12-06 07:53:17,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 53 transitions, 436 flow [2022-12-06 07:53:17,831 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 07:53:17,831 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 224 flow [2022-12-06 07:53:17,831 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 07:53:17,832 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 18 predicate places. [2022-12-06 07:53:17,832 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:17,832 INFO L89 Accepts]: Start accepts. Operand has 37 places, 29 transitions, 224 flow [2022-12-06 07:53:17,833 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:17,833 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:17,833 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 29 transitions, 224 flow [2022-12-06 07:53:17,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 224 flow [2022-12-06 07:53:17,839 INFO L130 PetriNetUnfolder]: 13/85 cut-off events. [2022-12-06 07:53:17,839 INFO L131 PetriNetUnfolder]: For 134/135 co-relation queries the response was YES. [2022-12-06 07:53:17,839 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 07:53:17,840 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 224 flow [2022-12-06 07:53:17,840 INFO L188 LiptonReduction]: Number of co-enabled transitions 124 [2022-12-06 07:53:18,596 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:53:18,596 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 764 [2022-12-06 07:53:18,596 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 220 flow [2022-12-06 07:53:18,597 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 07:53:18,597 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:18,597 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:18,602 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 07:53:18,797 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 07:53:18,797 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 07:53:18,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1963043088, now seen corresponding path program 1 times [2022-12-06 07:53:18,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:18,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139362541] [2022-12-06 07:53:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:18,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:19,033 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 07:53:19,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:19,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139362541] [2022-12-06 07:53:19,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139362541] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:19,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053493481] [2022-12-06 07:53:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:19,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:19,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:19,035 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 07:53:19,037 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 07:53:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:19,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-06 07:53:19,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:19,153 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 07:53:19,157 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 07:53:19,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:19,183 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-06 07:53:19,183 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 07:53:19,204 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 07:53:19,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053493481] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:19,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:19,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 11 [2022-12-06 07:53:19,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128938178] [2022-12-06 07:53:19,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:19,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 07:53:19,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:19,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 07:53:19,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-06 07:53:19,205 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 07:53:19,205 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 07:53:19,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:19,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 07:53:19,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:19,536 INFO L130 PetriNetUnfolder]: 347/660 cut-off events. [2022-12-06 07:53:19,537 INFO L131 PetriNetUnfolder]: For 1440/1440 co-relation queries the response was YES. [2022-12-06 07:53:19,538 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 07:53:19,539 INFO L137 encePairwiseOnDemand]: 9/15 looper letters, 72 selfloop transitions, 27 changer transitions 56/155 dead transitions. [2022-12-06 07:53:19,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 155 transitions, 979 flow [2022-12-06 07:53:19,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 07:53:19,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 07:53:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 156 transitions. [2022-12-06 07:53:19,541 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2022-12-06 07:53:19,541 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 220 flow. Second operand 18 states and 156 transitions. [2022-12-06 07:53:19,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 155 transitions, 979 flow [2022-12-06 07:53:19,544 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 07:53:19,545 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 423 flow [2022-12-06 07:53:19,545 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 07:53:19,546 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 35 predicate places. [2022-12-06 07:53:19,546 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:19,546 INFO L89 Accepts]: Start accepts. Operand has 54 places, 42 transitions, 423 flow [2022-12-06 07:53:19,547 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:19,547 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:19,547 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 42 transitions, 423 flow [2022-12-06 07:53:19,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 42 transitions, 423 flow [2022-12-06 07:53:19,556 INFO L130 PetriNetUnfolder]: 23/136 cut-off events. [2022-12-06 07:53:19,557 INFO L131 PetriNetUnfolder]: For 256/256 co-relation queries the response was YES. [2022-12-06 07:53:19,557 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 07:53:19,558 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 42 transitions, 423 flow [2022-12-06 07:53:19,558 INFO L188 LiptonReduction]: Number of co-enabled transitions 210 [2022-12-06 07:53:19,559 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,560 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,560 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,560 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,660 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,661 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,661 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,661 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,843 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,844 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,844 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:19,844 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:20,772 INFO L203 LiptonReduction]: Total number of compositions: 4 [2022-12-06 07:53:20,773 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1227 [2022-12-06 07:53:20,773 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 442 flow [2022-12-06 07:53:20,773 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 07:53:20,773 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:20,773 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:20,780 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 07:53:20,974 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 07:53:20,974 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 07:53:20,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:20,975 INFO L85 PathProgramCache]: Analyzing trace with hash 247879872, now seen corresponding path program 2 times [2022-12-06 07:53:20,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:20,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253695093] [2022-12-06 07:53:20,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:20,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:21,368 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 07:53:21,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:21,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253695093] [2022-12-06 07:53:21,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253695093] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:21,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092021651] [2022-12-06 07:53:21,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 07:53:21,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:21,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:21,370 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 07:53:21,407 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 07:53:21,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 07:53:21,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 07:53:21,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-06 07:53:21,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:21,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:53:21,531 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 07:53:21,567 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 07:53:21,571 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 07:53:21,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:21,628 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:53:21,628 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 07:53:21,631 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 07:53:21,682 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 07:53:21,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092021651] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:21,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:21,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-12-06 07:53:21,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016686337] [2022-12-06 07:53:21,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:21,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 07:53:21,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:21,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 07:53:21,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=289, Unknown=2, NotChecked=0, Total=342 [2022-12-06 07:53:21,683 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 19 [2022-12-06 07:53:21,683 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 07:53:21,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:21,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 19 [2022-12-06 07:53:21,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:22,084 INFO L130 PetriNetUnfolder]: 363/689 cut-off events. [2022-12-06 07:53:22,085 INFO L131 PetriNetUnfolder]: For 2067/2067 co-relation queries the response was YES. [2022-12-06 07:53:22,086 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 07:53:22,088 INFO L137 encePairwiseOnDemand]: 11/19 looper letters, 52 selfloop transitions, 27 changer transitions 35/114 dead transitions. [2022-12-06 07:53:22,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 114 transitions, 882 flow [2022-12-06 07:53:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 07:53:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 07:53:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 104 transitions. [2022-12-06 07:53:22,089 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2022-12-06 07:53:22,089 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 442 flow. Second operand 12 states and 104 transitions. [2022-12-06 07:53:22,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 114 transitions, 882 flow [2022-12-06 07:53:22,094 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 07:53:22,095 INFO L231 Difference]: Finished difference. Result has 60 places, 43 transitions, 381 flow [2022-12-06 07:53:22,095 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 07:53:22,096 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 41 predicate places. [2022-12-06 07:53:22,096 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:22,096 INFO L89 Accepts]: Start accepts. Operand has 60 places, 43 transitions, 381 flow [2022-12-06 07:53:22,097 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:22,097 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:22,097 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 43 transitions, 381 flow [2022-12-06 07:53:22,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 43 transitions, 381 flow [2022-12-06 07:53:22,107 INFO L130 PetriNetUnfolder]: 23/139 cut-off events. [2022-12-06 07:53:22,107 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-12-06 07:53:22,107 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 07:53:22,108 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 43 transitions, 381 flow [2022-12-06 07:53:22,108 INFO L188 LiptonReduction]: Number of co-enabled transitions 220 [2022-12-06 07:53:22,112 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:22,113 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 17 [2022-12-06 07:53:22,113 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 43 transitions, 381 flow [2022-12-06 07:53:22,113 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 07:53:22,113 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:22,113 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:22,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-06 07:53:22,318 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 07:53:22,319 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 07:53:22,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:22,319 INFO L85 PathProgramCache]: Analyzing trace with hash -452356334, now seen corresponding path program 3 times [2022-12-06 07:53:22,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:22,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098245166] [2022-12-06 07:53:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:22,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:22,427 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 07:53:22,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:22,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098245166] [2022-12-06 07:53:22,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098245166] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:22,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254229727] [2022-12-06 07:53:22,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 07:53:22,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:22,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:22,429 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 07:53:22,431 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 07:53:22,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-06 07:53:22,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 07:53:22,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 07:53:22,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:22,649 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-12-06 07:53:22,650 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 07:53:22,666 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 07:53:22,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:22,763 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2022-12-06 07:53:22,763 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 07:53:22,830 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 07:53:22,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254229727] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:22,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:22,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2022-12-06 07:53:22,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955961519] [2022-12-06 07:53:22,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:22,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 07:53:22,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:22,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 07:53:22,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-12-06 07:53:22,832 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 19 [2022-12-06 07:53:22,832 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 07:53:22,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:22,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 19 [2022-12-06 07:53:22,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:24,064 INFO L130 PetriNetUnfolder]: 1283/2412 cut-off events. [2022-12-06 07:53:24,064 INFO L131 PetriNetUnfolder]: For 6023/6023 co-relation queries the response was YES. [2022-12-06 07:53:24,069 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 07:53:24,072 INFO L137 encePairwiseOnDemand]: 9/19 looper letters, 61 selfloop transitions, 48 changer transitions 155/264 dead transitions. [2022-12-06 07:53:24,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 264 transitions, 2138 flow [2022-12-06 07:53:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 07:53:24,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 07:53:24,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 224 transitions. [2022-12-06 07:53:24,074 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47157894736842104 [2022-12-06 07:53:24,074 INFO L175 Difference]: Start difference. First operand has 60 places, 43 transitions, 381 flow. Second operand 25 states and 224 transitions. [2022-12-06 07:53:24,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 264 transitions, 2138 flow [2022-12-06 07:53:24,084 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 07:53:24,086 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 809 flow [2022-12-06 07:53:24,086 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 07:53:24,087 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 67 predicate places. [2022-12-06 07:53:24,087 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:24,087 INFO L89 Accepts]: Start accepts. Operand has 86 places, 75 transitions, 809 flow [2022-12-06 07:53:24,088 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:24,088 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:24,088 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 75 transitions, 809 flow [2022-12-06 07:53:24,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 75 transitions, 809 flow [2022-12-06 07:53:24,107 INFO L130 PetriNetUnfolder]: 49/288 cut-off events. [2022-12-06 07:53:24,107 INFO L131 PetriNetUnfolder]: For 979/981 co-relation queries the response was YES. [2022-12-06 07:53:24,108 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 07:53:24,109 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 75 transitions, 809 flow [2022-12-06 07:53:24,109 INFO L188 LiptonReduction]: Number of co-enabled transitions 420 [2022-12-06 07:53:25,112 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,113 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,113 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,113 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,191 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,192 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,192 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,192 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,279 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,280 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,280 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,280 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:25,483 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 07:53:25,484 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1397 [2022-12-06 07:53:25,484 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 815 flow [2022-12-06 07:53:25,484 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 07:53:25,484 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:25,484 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:25,492 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 07:53:25,684 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 07:53:25,685 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 07:53:25,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:25,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1625190638, now seen corresponding path program 1 times [2022-12-06 07:53:25,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:25,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238338857] [2022-12-06 07:53:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:26,007 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 07:53:26,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:26,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238338857] [2022-12-06 07:53:26,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238338857] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:26,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707162725] [2022-12-06 07:53:26,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:26,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:26,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:26,022 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 07:53:26,023 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 07:53:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:26,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-06 07:53:26,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:26,198 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 07:53:26,201 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 07:53:26,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:26,250 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-06 07:53:26,251 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 07:53:26,290 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 07:53:26,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707162725] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:26,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:26,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 20 [2022-12-06 07:53:26,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147464676] [2022-12-06 07:53:26,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:26,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-06 07:53:26,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:26,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-06 07:53:26,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-12-06 07:53:26,291 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 21 [2022-12-06 07:53:26,291 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 07:53:26,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:26,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 21 [2022-12-06 07:53:26,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:27,497 INFO L130 PetriNetUnfolder]: 1165/2175 cut-off events. [2022-12-06 07:53:27,498 INFO L131 PetriNetUnfolder]: For 7231/7231 co-relation queries the response was YES. [2022-12-06 07:53:27,502 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 07:53:27,507 INFO L137 encePairwiseOnDemand]: 10/21 looper letters, 140 selfloop transitions, 93 changer transitions 128/361 dead transitions. [2022-12-06 07:53:27,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 361 transitions, 2703 flow [2022-12-06 07:53:27,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-06 07:53:27,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-12-06 07:53:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 339 transitions. [2022-12-06 07:53:27,508 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4139194139194139 [2022-12-06 07:53:27,508 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 815 flow. Second operand 39 states and 339 transitions. [2022-12-06 07:53:27,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 361 transitions, 2703 flow [2022-12-06 07:53:27,522 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 07:53:27,525 INFO L231 Difference]: Finished difference. Result has 112 places, 111 transitions, 1365 flow [2022-12-06 07:53:27,525 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 07:53:27,525 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 93 predicate places. [2022-12-06 07:53:27,525 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:27,525 INFO L89 Accepts]: Start accepts. Operand has 112 places, 111 transitions, 1365 flow [2022-12-06 07:53:27,526 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:27,526 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:27,527 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 111 transitions, 1365 flow [2022-12-06 07:53:27,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 111 transitions, 1365 flow [2022-12-06 07:53:27,553 INFO L130 PetriNetUnfolder]: 74/410 cut-off events. [2022-12-06 07:53:27,554 INFO L131 PetriNetUnfolder]: For 844/844 co-relation queries the response was YES. [2022-12-06 07:53:27,555 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 07:53:27,557 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 111 transitions, 1365 flow [2022-12-06 07:53:27,557 INFO L188 LiptonReduction]: Number of co-enabled transitions 668 [2022-12-06 07:53:27,558 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,558 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,558 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,558 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,768 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,768 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,768 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,769 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,855 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,856 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,856 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:27,856 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,022 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,023 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,023 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,023 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,185 WARN L322 ript$VariableManager]: TermVariable LBE223 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,185 WARN L322 ript$VariableManager]: TermVariable LBE210 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,185 WARN L322 ript$VariableManager]: TermVariable LBE59 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,185 WARN L322 ript$VariableManager]: TermVariable LBE69 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,341 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,341 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,341 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,341 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,426 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,426 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,426 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,426 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,512 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,512 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,513 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,513 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:28,598 INFO L203 LiptonReduction]: Total number of compositions: 8 [2022-12-06 07:53:28,599 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1074 [2022-12-06 07:53:28,599 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 111 transitions, 1386 flow [2022-12-06 07:53:28,599 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 07:53:28,599 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:28,599 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:28,609 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 07:53:28,800 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 07:53:28,800 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 07:53:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:28,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1148426903, now seen corresponding path program 1 times [2022-12-06 07:53:28,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:28,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142271520] [2022-12-06 07:53:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:28,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:28,889 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 07:53:28,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:28,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142271520] [2022-12-06 07:53:28,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142271520] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:28,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:53:28,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 07:53:28,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642786400] [2022-12-06 07:53:28,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:28,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:53:28,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:28,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:53:28,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:53:28,890 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-06 07:53:28,890 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 07:53:28,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:28,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-06 07:53:28,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:29,093 INFO L130 PetriNetUnfolder]: 1145/2138 cut-off events. [2022-12-06 07:53:29,093 INFO L131 PetriNetUnfolder]: For 7108/7108 co-relation queries the response was YES. [2022-12-06 07:53:29,099 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 07:53:29,104 INFO L137 encePairwiseOnDemand]: 25/29 looper letters, 106 selfloop transitions, 3 changer transitions 8/117 dead transitions. [2022-12-06 07:53:29,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 117 transitions, 1616 flow [2022-12-06 07:53:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:53:29,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:53:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2022-12-06 07:53:29,105 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4482758620689655 [2022-12-06 07:53:29,105 INFO L175 Difference]: Start difference. First operand has 112 places, 111 transitions, 1386 flow. Second operand 3 states and 39 transitions. [2022-12-06 07:53:29,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 117 transitions, 1616 flow [2022-12-06 07:53:29,133 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 07:53:29,134 INFO L231 Difference]: Finished difference. Result has 100 places, 108 transitions, 1119 flow [2022-12-06 07:53:29,135 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 07:53:29,136 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 81 predicate places. [2022-12-06 07:53:29,136 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:29,136 INFO L89 Accepts]: Start accepts. Operand has 100 places, 108 transitions, 1119 flow [2022-12-06 07:53:29,138 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:29,138 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:29,138 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 108 transitions, 1119 flow [2022-12-06 07:53:29,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 108 transitions, 1119 flow [2022-12-06 07:53:29,165 INFO L130 PetriNetUnfolder]: 70/401 cut-off events. [2022-12-06 07:53:29,165 INFO L131 PetriNetUnfolder]: For 667/667 co-relation queries the response was YES. [2022-12-06 07:53:29,166 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 07:53:29,168 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 108 transitions, 1119 flow [2022-12-06 07:53:29,168 INFO L188 LiptonReduction]: Number of co-enabled transitions 654 [2022-12-06 07:53:29,169 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:29,170 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 34 [2022-12-06 07:53:29,170 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 108 transitions, 1119 flow [2022-12-06 07:53:29,170 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 07:53:29,170 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:29,170 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:29,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 07:53:29,171 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 07:53:29,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:29,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1550876388, now seen corresponding path program 1 times [2022-12-06 07:53:29,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:29,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000304791] [2022-12-06 07:53:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:29,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:29,249 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 07:53:29,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:29,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000304791] [2022-12-06 07:53:29,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000304791] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:29,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674400343] [2022-12-06 07:53:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:29,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:29,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:29,262 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 07:53:29,264 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 07:53:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:29,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-06 07:53:29,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:29,385 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 07:53:29,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:53:29,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674400343] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:29,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 07:53:29,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-06 07:53:29,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258366796] [2022-12-06 07:53:29,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:29,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:53:29,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:29,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:53:29,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 07:53:29,387 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 07:53:29,387 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 07:53:29,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:29,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 07:53:29,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:29,743 INFO L130 PetriNetUnfolder]: 1857/3483 cut-off events. [2022-12-06 07:53:29,743 INFO L131 PetriNetUnfolder]: For 8135/8135 co-relation queries the response was YES. [2022-12-06 07:53:29,752 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 07:53:29,761 INFO L137 encePairwiseOnDemand]: 16/28 looper letters, 167 selfloop transitions, 17 changer transitions 3/187 dead transitions. [2022-12-06 07:53:29,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 187 transitions, 2225 flow [2022-12-06 07:53:29,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:53:29,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:53:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2022-12-06 07:53:29,762 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2022-12-06 07:53:29,762 INFO L175 Difference]: Start difference. First operand has 100 places, 108 transitions, 1119 flow. Second operand 4 states and 60 transitions. [2022-12-06 07:53:29,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 187 transitions, 2225 flow [2022-12-06 07:53:29,852 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 07:53:29,857 INFO L231 Difference]: Finished difference. Result has 103 places, 123 transitions, 1384 flow [2022-12-06 07:53:29,857 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 07:53:29,858 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 84 predicate places. [2022-12-06 07:53:29,858 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:29,858 INFO L89 Accepts]: Start accepts. Operand has 103 places, 123 transitions, 1384 flow [2022-12-06 07:53:29,860 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:29,860 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:29,860 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 123 transitions, 1384 flow [2022-12-06 07:53:29,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 123 transitions, 1384 flow [2022-12-06 07:53:29,904 INFO L130 PetriNetUnfolder]: 105/641 cut-off events. [2022-12-06 07:53:29,904 INFO L131 PetriNetUnfolder]: For 1267/1267 co-relation queries the response was YES. [2022-12-06 07:53:29,906 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 07:53:29,908 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 123 transitions, 1384 flow [2022-12-06 07:53:29,908 INFO L188 LiptonReduction]: Number of co-enabled transitions 752 [2022-12-06 07:53:29,910 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:29,911 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 53 [2022-12-06 07:53:29,911 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 123 transitions, 1384 flow [2022-12-06 07:53:29,911 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 07:53:29,911 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:29,911 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:29,919 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 07:53:30,117 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 07:53:30,117 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 07:53:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1905614036, now seen corresponding path program 1 times [2022-12-06 07:53:30,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:30,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211000323] [2022-12-06 07:53:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:30,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:30,183 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 07:53:30,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:30,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211000323] [2022-12-06 07:53:30,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211000323] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:30,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647242260] [2022-12-06 07:53:30,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:30,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:30,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:30,184 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 07:53:30,212 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 07:53:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:30,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-06 07:53:30,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:30,289 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 07:53:30,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:53:30,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647242260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:30,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 07:53:30,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-06 07:53:30,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417129538] [2022-12-06 07:53:30,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:30,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:53:30,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:30,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:53:30,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 07:53:30,291 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 07:53:30,291 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 07:53:30,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:30,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 07:53:30,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:30,659 INFO L130 PetriNetUnfolder]: 1999/3741 cut-off events. [2022-12-06 07:53:30,659 INFO L131 PetriNetUnfolder]: For 10683/10683 co-relation queries the response was YES. [2022-12-06 07:53:30,668 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 07:53:30,675 INFO L137 encePairwiseOnDemand]: 14/28 looper letters, 142 selfloop transitions, 55 changer transitions 2/199 dead transitions. [2022-12-06 07:53:30,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 199 transitions, 2504 flow [2022-12-06 07:53:30,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:53:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:53:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2022-12-06 07:53:30,676 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2022-12-06 07:53:30,676 INFO L175 Difference]: Start difference. First operand has 103 places, 123 transitions, 1384 flow. Second operand 4 states and 62 transitions. [2022-12-06 07:53:30,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 199 transitions, 2504 flow [2022-12-06 07:53:30,711 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 07:53:30,717 INFO L231 Difference]: Finished difference. Result has 107 places, 160 transitions, 2051 flow [2022-12-06 07:53:30,717 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 07:53:30,718 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 88 predicate places. [2022-12-06 07:53:30,718 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:30,718 INFO L89 Accepts]: Start accepts. Operand has 107 places, 160 transitions, 2051 flow [2022-12-06 07:53:30,719 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:30,719 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:30,719 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 160 transitions, 2051 flow [2022-12-06 07:53:30,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 160 transitions, 2051 flow [2022-12-06 07:53:30,768 INFO L130 PetriNetUnfolder]: 114/694 cut-off events. [2022-12-06 07:53:30,768 INFO L131 PetriNetUnfolder]: For 1843/1843 co-relation queries the response was YES. [2022-12-06 07:53:30,770 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 07:53:30,772 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 160 transitions, 2051 flow [2022-12-06 07:53:30,773 INFO L188 LiptonReduction]: Number of co-enabled transitions 1010 [2022-12-06 07:53:30,774 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:30,775 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 57 [2022-12-06 07:53:30,775 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 160 transitions, 2051 flow [2022-12-06 07:53:30,775 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 07:53:30,775 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:30,775 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:30,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-06 07:53:30,979 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 07:53:30,981 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 07:53:30,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash 806037576, now seen corresponding path program 1 times [2022-12-06 07:53:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:30,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743384789] [2022-12-06 07:53:30,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:30,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:31,039 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 07:53:31,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:31,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743384789] [2022-12-06 07:53:31,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743384789] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:31,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392022609] [2022-12-06 07:53:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:31,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:31,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:31,061 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 07:53:31,062 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 07:53:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:31,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-06 07:53:31,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:31,150 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 07:53:31,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:31,180 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 07:53:31,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392022609] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:31,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:31,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2022-12-06 07:53:31,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584445924] [2022-12-06 07:53:31,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:31,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 07:53:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:31,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 07:53:31,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-06 07:53:31,181 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 07:53:31,181 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 07:53:31,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:31,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 07:53:31,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:31,861 INFO L130 PetriNetUnfolder]: 3473/6444 cut-off events. [2022-12-06 07:53:31,862 INFO L131 PetriNetUnfolder]: For 28508/28508 co-relation queries the response was YES. [2022-12-06 07:53:31,880 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 07:53:31,900 INFO L137 encePairwiseOnDemand]: 12/28 looper letters, 100 selfloop transitions, 180 changer transitions 0/280 dead transitions. [2022-12-06 07:53:31,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 280 transitions, 4063 flow [2022-12-06 07:53:31,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 07:53:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 07:53:31,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 78 transitions. [2022-12-06 07:53:31,901 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2022-12-06 07:53:31,901 INFO L175 Difference]: Start difference. First operand has 107 places, 160 transitions, 2051 flow. Second operand 6 states and 78 transitions. [2022-12-06 07:53:31,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 280 transitions, 4063 flow [2022-12-06 07:53:31,965 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 07:53:31,970 INFO L231 Difference]: Finished difference. Result has 111 places, 247 transitions, 3759 flow [2022-12-06 07:53:31,970 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 07:53:31,971 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 92 predicate places. [2022-12-06 07:53:31,971 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:31,971 INFO L89 Accepts]: Start accepts. Operand has 111 places, 247 transitions, 3759 flow [2022-12-06 07:53:31,973 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:31,973 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:31,973 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 247 transitions, 3759 flow [2022-12-06 07:53:31,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 247 transitions, 3759 flow [2022-12-06 07:53:32,071 INFO L130 PetriNetUnfolder]: 203/1188 cut-off events. [2022-12-06 07:53:32,071 INFO L131 PetriNetUnfolder]: For 4738/4740 co-relation queries the response was YES. [2022-12-06 07:53:32,074 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 07:53:32,081 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 247 transitions, 3759 flow [2022-12-06 07:53:32,081 INFO L188 LiptonReduction]: Number of co-enabled transitions 1678 [2022-12-06 07:53:32,083 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:32,084 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 113 [2022-12-06 07:53:32,084 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 247 transitions, 3759 flow [2022-12-06 07:53:32,084 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 07:53:32,084 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:32,084 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:32,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-06 07:53:32,289 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 07:53:32,290 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 07:53:32,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:32,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1935893168, now seen corresponding path program 2 times [2022-12-06 07:53:32,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:32,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834956928] [2022-12-06 07:53:32,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:32,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:32,696 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 07:53:32,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:32,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834956928] [2022-12-06 07:53:32,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834956928] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:32,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727708526] [2022-12-06 07:53:32,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 07:53:32,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:32,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:32,698 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 07:53:32,700 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 07:53:32,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 07:53:32,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 07:53:32,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-06 07:53:32,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:32,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:53:32,868 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 07:53:32,916 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 07:53:32,923 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 07:53:32,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:32,979 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 07:53:32,986 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:53:32,987 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 07:53:32,993 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 07:53:33,059 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 07:53:33,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727708526] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:33,059 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:33,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 24 [2022-12-06 07:53:33,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661628850] [2022-12-06 07:53:33,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:33,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-06 07:53:33,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:33,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-06 07:53:33,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=532, Unknown=1, NotChecked=46, Total=650 [2022-12-06 07:53:33,060 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 07:53:33,060 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 07:53:33,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:33,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 07:53:33,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:34,344 INFO L130 PetriNetUnfolder]: 3547/6583 cut-off events. [2022-12-06 07:53:34,344 INFO L131 PetriNetUnfolder]: For 31977/31977 co-relation queries the response was YES. [2022-12-06 07:53:34,362 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 07:53:34,376 INFO L137 encePairwiseOnDemand]: 11/28 looper letters, 103 selfloop transitions, 215 changer transitions 44/362 dead transitions. [2022-12-06 07:53:34,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 362 transitions, 5103 flow [2022-12-06 07:53:34,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 07:53:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 07:53:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 138 transitions. [2022-12-06 07:53:34,378 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32857142857142857 [2022-12-06 07:53:34,378 INFO L175 Difference]: Start difference. First operand has 111 places, 247 transitions, 3759 flow. Second operand 15 states and 138 transitions. [2022-12-06 07:53:34,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 362 transitions, 5103 flow [2022-12-06 07:53:34,502 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 07:53:34,506 INFO L231 Difference]: Finished difference. Result has 126 places, 251 transitions, 4282 flow [2022-12-06 07:53:34,506 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 07:53:34,508 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 107 predicate places. [2022-12-06 07:53:34,508 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:34,508 INFO L89 Accepts]: Start accepts. Operand has 126 places, 251 transitions, 4282 flow [2022-12-06 07:53:34,511 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:34,511 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:34,511 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 251 transitions, 4282 flow [2022-12-06 07:53:34,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 251 transitions, 4282 flow [2022-12-06 07:53:34,636 INFO L130 PetriNetUnfolder]: 207/1201 cut-off events. [2022-12-06 07:53:34,637 INFO L131 PetriNetUnfolder]: For 5545/5547 co-relation queries the response was YES. [2022-12-06 07:53:34,641 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 07:53:34,648 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 251 transitions, 4282 flow [2022-12-06 07:53:34,649 INFO L188 LiptonReduction]: Number of co-enabled transitions 1710 [2022-12-06 07:53:34,650 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:34,650 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 142 [2022-12-06 07:53:34,650 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 251 transitions, 4282 flow [2022-12-06 07:53:34,651 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 07:53:34,651 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:34,651 INFO L213 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:34,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-06 07:53:34,855 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 07:53:34,856 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 07:53:34,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:34,856 INFO L85 PathProgramCache]: Analyzing trace with hash -7344084, now seen corresponding path program 1 times [2022-12-06 07:53:34,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:34,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565318399] [2022-12-06 07:53:34,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:34,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:34,936 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 07:53:34,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:34,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565318399] [2022-12-06 07:53:34,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565318399] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:34,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337069048] [2022-12-06 07:53:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:34,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:34,953 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 07:53:34,954 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 07:53:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:35,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-06 07:53:35,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:35,076 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 07:53:35,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:53:35,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337069048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:35,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 07:53:35,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-12-06 07:53:35,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102673743] [2022-12-06 07:53:35,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:35,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:53:35,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:35,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:53:35,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-06 07:53:35,077 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 07:53:35,077 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 07:53:35,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:35,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 07:53:35,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:35,894 INFO L130 PetriNetUnfolder]: 3209/5985 cut-off events. [2022-12-06 07:53:35,895 INFO L131 PetriNetUnfolder]: For 33988/33988 co-relation queries the response was YES. [2022-12-06 07:53:35,911 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 07:53:35,921 INFO L137 encePairwiseOnDemand]: 16/28 looper letters, 258 selfloop transitions, 11 changer transitions 15/284 dead transitions. [2022-12-06 07:53:35,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 284 transitions, 5054 flow [2022-12-06 07:53:35,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:53:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:53:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2022-12-06 07:53:35,922 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2022-12-06 07:53:35,922 INFO L175 Difference]: Start difference. First operand has 126 places, 251 transitions, 4282 flow. Second operand 5 states and 66 transitions. [2022-12-06 07:53:35,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 284 transitions, 5054 flow [2022-12-06 07:53:36,058 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 07:53:36,063 INFO L231 Difference]: Finished difference. Result has 119 places, 233 transitions, 3493 flow [2022-12-06 07:53:36,063 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 07:53:36,064 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 100 predicate places. [2022-12-06 07:53:36,064 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:36,065 INFO L89 Accepts]: Start accepts. Operand has 119 places, 233 transitions, 3493 flow [2022-12-06 07:53:36,066 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:36,066 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:36,066 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 233 transitions, 3493 flow [2022-12-06 07:53:36,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 233 transitions, 3493 flow [2022-12-06 07:53:36,151 INFO L130 PetriNetUnfolder]: 182/1076 cut-off events. [2022-12-06 07:53:36,151 INFO L131 PetriNetUnfolder]: For 4732/4734 co-relation queries the response was YES. [2022-12-06 07:53:36,154 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 07:53:36,159 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 233 transitions, 3493 flow [2022-12-06 07:53:36,159 INFO L188 LiptonReduction]: Number of co-enabled transitions 1582 [2022-12-06 07:53:36,160 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:36,161 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 97 [2022-12-06 07:53:36,161 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 233 transitions, 3493 flow [2022-12-06 07:53:36,161 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 07:53:36,161 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:36,161 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:36,168 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 07:53:36,366 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 07:53:36,366 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 07:53:36,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:36,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1454085347, now seen corresponding path program 2 times [2022-12-06 07:53:36,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:36,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540032748] [2022-12-06 07:53:36,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:36,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:36,518 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 07:53:36,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:36,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540032748] [2022-12-06 07:53:36,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540032748] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:36,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260449668] [2022-12-06 07:53:36,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 07:53:36,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:36,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:36,520 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 07:53:36,522 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 07:53:36,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 07:53:36,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 07:53:36,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-06 07:53:36,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:36,703 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 07:53:36,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:53:36,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260449668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:36,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 07:53:36,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-12-06 07:53:36,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637837293] [2022-12-06 07:53:36,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:36,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 07:53:36,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:36,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 07:53:36,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-06 07:53:36,705 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 07:53:36,705 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 07:53:36,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:36,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 07:53:36,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:37,834 INFO L130 PetriNetUnfolder]: 4391/8317 cut-off events. [2022-12-06 07:53:37,834 INFO L131 PetriNetUnfolder]: For 37912/37912 co-relation queries the response was YES. [2022-12-06 07:53:37,860 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 07:53:37,874 INFO L137 encePairwiseOnDemand]: 10/28 looper letters, 210 selfloop transitions, 170 changer transitions 0/380 dead transitions. [2022-12-06 07:53:37,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 380 transitions, 6102 flow [2022-12-06 07:53:37,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 07:53:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 07:53:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2022-12-06 07:53:37,876 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4489795918367347 [2022-12-06 07:53:37,876 INFO L175 Difference]: Start difference. First operand has 119 places, 233 transitions, 3493 flow. Second operand 7 states and 88 transitions. [2022-12-06 07:53:37,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 380 transitions, 6102 flow [2022-12-06 07:53:38,057 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 07:53:38,062 INFO L231 Difference]: Finished difference. Result has 129 places, 343 transitions, 5977 flow [2022-12-06 07:53:38,062 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 07:53:38,063 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 110 predicate places. [2022-12-06 07:53:38,063 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:38,063 INFO L89 Accepts]: Start accepts. Operand has 129 places, 343 transitions, 5977 flow [2022-12-06 07:53:38,065 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:38,065 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:38,066 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 343 transitions, 5977 flow [2022-12-06 07:53:38,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 343 transitions, 5977 flow [2022-12-06 07:53:38,227 INFO L130 PetriNetUnfolder]: 223/1509 cut-off events. [2022-12-06 07:53:38,227 INFO L131 PetriNetUnfolder]: For 6923/6926 co-relation queries the response was YES. [2022-12-06 07:53:38,233 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 07:53:38,244 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 343 transitions, 5977 flow [2022-12-06 07:53:38,245 INFO L188 LiptonReduction]: Number of co-enabled transitions 2362 [2022-12-06 07:53:40,101 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:53:40,101 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2038 [2022-12-06 07:53:40,101 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 343 transitions, 5995 flow [2022-12-06 07:53:40,102 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 07:53:40,102 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:40,102 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:40,109 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 07:53:40,304 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 07:53:40,304 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 07:53:40,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2088990809, now seen corresponding path program 1 times [2022-12-06 07:53:40,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:40,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31368913] [2022-12-06 07:53:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:40,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:40,412 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 07:53:40,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:40,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31368913] [2022-12-06 07:53:40,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31368913] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:40,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190884945] [2022-12-06 07:53:40,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:40,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:40,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:40,414 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 07:53:40,416 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 07:53:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:40,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 07:53:40,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:40,642 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 07:53:40,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:53:40,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190884945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:40,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 07:53:40,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-12-06 07:53:40,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113257734] [2022-12-06 07:53:40,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:40,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 07:53:40,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:40,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 07:53:40,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-12-06 07:53:40,643 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 30 [2022-12-06 07:53:40,643 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 07:53:40,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:40,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 30 [2022-12-06 07:53:40,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:41,767 INFO L130 PetriNetUnfolder]: 4227/8037 cut-off events. [2022-12-06 07:53:41,767 INFO L131 PetriNetUnfolder]: For 51932/51932 co-relation queries the response was YES. [2022-12-06 07:53:41,789 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 07:53:41,802 INFO L137 encePairwiseOnDemand]: 14/30 looper letters, 218 selfloop transitions, 159 changer transitions 1/378 dead transitions. [2022-12-06 07:53:41,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 378 transitions, 6892 flow [2022-12-06 07:53:41,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 07:53:41,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 07:53:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 94 transitions. [2022-12-06 07:53:41,803 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44761904761904764 [2022-12-06 07:53:41,803 INFO L175 Difference]: Start difference. First operand has 129 places, 343 transitions, 5995 flow. Second operand 7 states and 94 transitions. [2022-12-06 07:53:41,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 378 transitions, 6892 flow [2022-12-06 07:53:42,084 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 07:53:42,090 INFO L231 Difference]: Finished difference. Result has 133 places, 333 transitions, 6080 flow [2022-12-06 07:53:42,090 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 07:53:42,091 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 114 predicate places. [2022-12-06 07:53:42,091 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:42,091 INFO L89 Accepts]: Start accepts. Operand has 133 places, 333 transitions, 6080 flow [2022-12-06 07:53:42,093 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:42,093 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:42,093 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 333 transitions, 6080 flow [2022-12-06 07:53:42,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 333 transitions, 6080 flow [2022-12-06 07:53:42,218 INFO L130 PetriNetUnfolder]: 209/1464 cut-off events. [2022-12-06 07:53:42,218 INFO L131 PetriNetUnfolder]: For 7117/7121 co-relation queries the response was YES. [2022-12-06 07:53:42,224 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 07:53:42,233 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 333 transitions, 6080 flow [2022-12-06 07:53:42,233 INFO L188 LiptonReduction]: Number of co-enabled transitions 2294 [2022-12-06 07:53:42,234 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:42,234 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 143 [2022-12-06 07:53:42,234 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 333 transitions, 6080 flow [2022-12-06 07:53:42,235 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 07:53:42,235 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:42,235 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:42,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-06 07:53:42,436 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 07:53:42,437 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 07:53:42,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2071401523, now seen corresponding path program 2 times [2022-12-06 07:53:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:42,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233824502] [2022-12-06 07:53:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:42,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:42,541 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 07:53:42,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:42,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233824502] [2022-12-06 07:53:42,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233824502] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:42,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054832117] [2022-12-06 07:53:42,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 07:53:42,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:42,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:42,561 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 07:53:42,588 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 07:53:42,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 07:53:42,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 07:53:42,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 07:53:42,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:42,743 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 07:53:42,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:53:42,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054832117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:53:42,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 07:53:42,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-12-06 07:53:42,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835492147] [2022-12-06 07:53:42,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:53:42,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:53:42,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:42,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:53:42,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-06 07:53:42,744 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-06 07:53:42,745 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 07:53:42,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:42,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-06 07:53:42,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:43,984 INFO L130 PetriNetUnfolder]: 4251/8112 cut-off events. [2022-12-06 07:53:43,984 INFO L131 PetriNetUnfolder]: For 52752/52752 co-relation queries the response was YES. [2022-12-06 07:53:44,012 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 07:53:44,040 INFO L137 encePairwiseOnDemand]: 20/29 looper letters, 313 selfloop transitions, 16 changer transitions 29/358 dead transitions. [2022-12-06 07:53:44,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 358 transitions, 6920 flow [2022-12-06 07:53:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:53:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:53:44,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2022-12-06 07:53:44,056 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4689655172413793 [2022-12-06 07:53:44,056 INFO L175 Difference]: Start difference. First operand has 132 places, 333 transitions, 6080 flow. Second operand 5 states and 68 transitions. [2022-12-06 07:53:44,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 358 transitions, 6920 flow [2022-12-06 07:53:44,365 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 07:53:44,370 INFO L231 Difference]: Finished difference. Result has 131 places, 315 transitions, 5395 flow [2022-12-06 07:53:44,371 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 07:53:44,371 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 112 predicate places. [2022-12-06 07:53:44,371 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:44,371 INFO L89 Accepts]: Start accepts. Operand has 131 places, 315 transitions, 5395 flow [2022-12-06 07:53:44,373 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:44,373 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:44,373 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 315 transitions, 5395 flow [2022-12-06 07:53:44,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 315 transitions, 5395 flow [2022-12-06 07:53:44,489 INFO L130 PetriNetUnfolder]: 200/1401 cut-off events. [2022-12-06 07:53:44,489 INFO L131 PetriNetUnfolder]: For 7026/7030 co-relation queries the response was YES. [2022-12-06 07:53:44,494 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 07:53:44,501 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 315 transitions, 5395 flow [2022-12-06 07:53:44,501 INFO L188 LiptonReduction]: Number of co-enabled transitions 2170 [2022-12-06 07:53:44,502 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:44,502 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 131 [2022-12-06 07:53:44,502 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 315 transitions, 5395 flow [2022-12-06 07:53:44,502 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 07:53:44,502 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:44,502 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:44,509 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 07:53:44,707 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 07:53:44,708 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 07:53:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash -808382685, now seen corresponding path program 1 times [2022-12-06 07:53:44,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:44,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301599727] [2022-12-06 07:53:44,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:44,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:44,793 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 07:53:44,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:44,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301599727] [2022-12-06 07:53:44,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301599727] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:44,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130219109] [2022-12-06 07:53:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:44,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:44,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:44,795 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 07:53:44,831 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 07:53:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:44,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-06 07:53:44,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:44,994 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 07:53:44,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:45,051 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 07:53:45,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130219109] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:45,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:45,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 14 [2022-12-06 07:53:45,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443252523] [2022-12-06 07:53:45,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:45,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 07:53:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:45,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 07:53:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-12-06 07:53:45,053 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-06 07:53:45,054 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 07:53:45,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:45,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-06 07:53:45,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:46,342 INFO L130 PetriNetUnfolder]: 3885/7435 cut-off events. [2022-12-06 07:53:46,342 INFO L131 PetriNetUnfolder]: For 46038/46038 co-relation queries the response was YES. [2022-12-06 07:53:46,366 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 07:53:46,376 INFO L137 encePairwiseOnDemand]: 16/29 looper letters, 224 selfloop transitions, 74 changer transitions 87/385 dead transitions. [2022-12-06 07:53:46,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 385 transitions, 6247 flow [2022-12-06 07:53:46,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 07:53:46,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 07:53:46,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 133 transitions. [2022-12-06 07:53:46,377 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35278514588859416 [2022-12-06 07:53:46,377 INFO L175 Difference]: Start difference. First operand has 130 places, 315 transitions, 5395 flow. Second operand 13 states and 133 transitions. [2022-12-06 07:53:46,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 385 transitions, 6247 flow [2022-12-06 07:53:46,622 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 07:53:46,627 INFO L231 Difference]: Finished difference. Result has 145 places, 274 transitions, 4823 flow [2022-12-06 07:53:46,627 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 07:53:46,627 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 126 predicate places. [2022-12-06 07:53:46,627 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:46,627 INFO L89 Accepts]: Start accepts. Operand has 145 places, 274 transitions, 4823 flow [2022-12-06 07:53:46,629 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:46,629 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:46,630 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 274 transitions, 4823 flow [2022-12-06 07:53:46,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 274 transitions, 4823 flow [2022-12-06 07:53:46,767 INFO L130 PetriNetUnfolder]: 182/1218 cut-off events. [2022-12-06 07:53:46,767 INFO L131 PetriNetUnfolder]: For 6785/6789 co-relation queries the response was YES. [2022-12-06 07:53:46,772 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 07:53:46,780 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 274 transitions, 4823 flow [2022-12-06 07:53:46,780 INFO L188 LiptonReduction]: Number of co-enabled transitions 1872 [2022-12-06 07:53:46,781 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:53:46,782 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 155 [2022-12-06 07:53:46,782 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 274 transitions, 4823 flow [2022-12-06 07:53:46,782 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 07:53:46,782 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:46,782 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:46,787 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 07:53:46,987 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 07:53:46,987 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 07:53:46,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:46,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1610988145, now seen corresponding path program 1 times [2022-12-06 07:53:46,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:46,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582871219] [2022-12-06 07:53:46,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:46,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:47,100 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 07:53:47,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:47,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582871219] [2022-12-06 07:53:47,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582871219] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:47,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340556712] [2022-12-06 07:53:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:47,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:47,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:47,116 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 07:53:47,117 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 07:53:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:47,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-06 07:53:47,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:47,310 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 07:53:47,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:47,386 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 07:53:47,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340556712] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:47,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:47,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 17 [2022-12-06 07:53:47,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555548230] [2022-12-06 07:53:47,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:47,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 07:53:47,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:47,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 07:53:47,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-12-06 07:53:47,388 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 07:53:47,388 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 07:53:47,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:47,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 07:53:47,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:48,396 INFO L130 PetriNetUnfolder]: 2582/4890 cut-off events. [2022-12-06 07:53:48,396 INFO L131 PetriNetUnfolder]: For 25622/25622 co-relation queries the response was YES. [2022-12-06 07:53:48,415 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 07:53:48,422 INFO L137 encePairwiseOnDemand]: 22/28 looper letters, 172 selfloop transitions, 0 changer transitions 134/306 dead transitions. [2022-12-06 07:53:48,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 306 transitions, 4206 flow [2022-12-06 07:53:48,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 07:53:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 07:53:48,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 148 transitions. [2022-12-06 07:53:48,423 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.33035714285714285 [2022-12-06 07:53:48,423 INFO L175 Difference]: Start difference. First operand has 136 places, 274 transitions, 4823 flow. Second operand 16 states and 148 transitions. [2022-12-06 07:53:48,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 306 transitions, 4206 flow [2022-12-06 07:53:48,550 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 07:53:48,553 INFO L231 Difference]: Finished difference. Result has 142 places, 172 transitions, 2489 flow [2022-12-06 07:53:48,553 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 07:53:48,554 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 123 predicate places. [2022-12-06 07:53:48,554 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:48,554 INFO L89 Accepts]: Start accepts. Operand has 142 places, 172 transitions, 2489 flow [2022-12-06 07:53:48,555 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:48,555 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:48,555 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 172 transitions, 2489 flow [2022-12-06 07:53:48,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 172 transitions, 2489 flow [2022-12-06 07:53:48,604 INFO L130 PetriNetUnfolder]: 132/718 cut-off events. [2022-12-06 07:53:48,604 INFO L131 PetriNetUnfolder]: For 2428/2431 co-relation queries the response was YES. [2022-12-06 07:53:48,607 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 07:53:48,610 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 172 transitions, 2489 flow [2022-12-06 07:53:48,610 INFO L188 LiptonReduction]: Number of co-enabled transitions 1174 [2022-12-06 07:53:48,612 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,612 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,612 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,613 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,740 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,741 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,741 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,741 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,802 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,802 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,802 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,802 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:48,934 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 07:53:48,935 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 381 [2022-12-06 07:53:48,935 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 172 transitions, 2497 flow [2022-12-06 07:53:48,935 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 07:53:48,935 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:53:48,935 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:53:48,940 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 07:53:49,139 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 07:53:49,140 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 07:53:49,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:53:49,140 INFO L85 PathProgramCache]: Analyzing trace with hash -129564352, now seen corresponding path program 1 times [2022-12-06 07:53:49,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:53:49,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343082247] [2022-12-06 07:53:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:49,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:53:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:49,365 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 07:53:49,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:53:49,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343082247] [2022-12-06 07:53:49,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343082247] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:53:49,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879798581] [2022-12-06 07:53:49,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:53:49,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:53:49,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:53:49,381 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 07:53:49,383 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 07:53:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:53:49,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-06 07:53:49,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:53:49,539 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 07:53:49,542 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 07:53:49,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:53:49,584 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-06 07:53:49,584 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 07:53:49,607 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 07:53:49,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879798581] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:53:49,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:53:49,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 17 [2022-12-06 07:53:49,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924249170] [2022-12-06 07:53:49,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:53:49,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 07:53:49,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:53:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 07:53:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-12-06 07:53:49,609 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-06 07:53:49,609 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 07:53:49,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:53:49,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-06 07:53:49,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:53:50,480 INFO L130 PetriNetUnfolder]: 2254/4147 cut-off events. [2022-12-06 07:53:50,481 INFO L131 PetriNetUnfolder]: For 16652/16652 co-relation queries the response was YES. [2022-12-06 07:53:50,490 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 07:53:50,495 INFO L137 encePairwiseOnDemand]: 18/28 looper letters, 186 selfloop transitions, 41 changer transitions 32/259 dead transitions. [2022-12-06 07:53:50,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 259 transitions, 3402 flow [2022-12-06 07:53:50,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 07:53:50,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 07:53:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 118 transitions. [2022-12-06 07:53:50,498 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35119047619047616 [2022-12-06 07:53:50,498 INFO L175 Difference]: Start difference. First operand has 109 places, 172 transitions, 2497 flow. Second operand 12 states and 118 transitions. [2022-12-06 07:53:50,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 259 transitions, 3402 flow [2022-12-06 07:53:50,551 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 07:53:50,553 INFO L231 Difference]: Finished difference. Result has 114 places, 180 transitions, 2498 flow [2022-12-06 07:53:50,553 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 07:53:50,554 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 95 predicate places. [2022-12-06 07:53:50,554 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:53:50,554 INFO L89 Accepts]: Start accepts. Operand has 114 places, 180 transitions, 2498 flow [2022-12-06 07:53:50,557 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:53:50,557 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:53:50,557 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 180 transitions, 2498 flow [2022-12-06 07:53:50,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 180 transitions, 2498 flow [2022-12-06 07:53:50,605 INFO L130 PetriNetUnfolder]: 138/751 cut-off events. [2022-12-06 07:53:50,605 INFO L131 PetriNetUnfolder]: For 2387/2391 co-relation queries the response was YES. [2022-12-06 07:53:50,607 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 07:53:50,611 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 180 transitions, 2498 flow [2022-12-06 07:53:50,611 INFO L188 LiptonReduction]: Number of co-enabled transitions 1226 [2022-12-06 07:53:50,613 WARN L322 ript$VariableManager]: TermVariable LBE203 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:50,613 WARN L322 ript$VariableManager]: TermVariable LBE199 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:50,613 WARN L322 ript$VariableManager]: TermVariable LBE30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:50,613 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:53:50,623 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 07:53:50,818 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 07:53:50,819 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 07:53:50,822 INFO L158 Benchmark]: Toolchain (without parser) took 40753.66ms. Allocated memory was 176.2MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 150.9MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 516.4MB. Max. memory is 8.0GB. [2022-12-06 07:53:50,822 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:53:50,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.83ms. Allocated memory is still 176.2MB. Free memory was 150.9MB in the beginning and 139.0MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 07:53:50,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.43ms. Allocated memory is still 176.2MB. Free memory was 139.0MB in the beginning and 137.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:53:50,823 INFO L158 Benchmark]: Boogie Preprocessor took 22.36ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 135.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 07:53:50,823 INFO L158 Benchmark]: RCFGBuilder took 482.45ms. Allocated memory is still 176.2MB. Free memory was 135.8MB in the beginning and 114.2MB in the end (delta: 21.6MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 07:53:50,823 INFO L158 Benchmark]: TraceAbstraction took 39974.15ms. Allocated memory was 176.2MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 113.8MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 479.7MB. Max. memory is 8.0GB. [2022-12-06 07:53:50,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 243.83ms. Allocated memory is still 176.2MB. Free memory was 150.9MB in the beginning and 139.0MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.43ms. Allocated memory is still 176.2MB. Free memory was 139.0MB in the beginning and 137.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.36ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 135.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 482.45ms. Allocated memory is still 176.2MB. Free memory was 135.8MB in the beginning and 114.2MB in the end (delta: 21.6MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 39974.15ms. Allocated memory was 176.2MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 113.8MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 479.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 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: 0.7s, 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: 0.8s, 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: 1.2s, 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: 7, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 4, dependent conditional: 4, 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: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, 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: 1.4s, 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: 1.0s, 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: 1.9s, 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: 0.3s, 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 07:53:50,852 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...