/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:14:56,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:14:56,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:14:56,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 23:14:56,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 23:14:56,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 23:14:56,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 23:14:56,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 23:14:56,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 23:14:56,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 23:14:56,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 23:14:56,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 23:14:56,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:14:56,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:14:56,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:14:56,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:14:56,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:14:56,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:14:56,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:14:56,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:14:56,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:14:56,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:14:56,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:14:56,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:14:56,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 23:14:56,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 23:14:56,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 23:14:56,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 23:14:56,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 23:14:56,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 23:14:56,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 23:14:56,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 23:14:56,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 23:14:56,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 23:14:56,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 23:14:56,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 23:14:56,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 23:14:56,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 23:14:56,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:14:56,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:14:56,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:14:56,651 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-RepeatedSemanticLbe.epf [2022-12-05 23:14:56,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:14:56,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:14:56,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:14:56,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:14:56,687 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:14:56,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:14:56,688 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:14:56,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:14:56,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:14:56,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:14:56,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:14:56,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:14:56,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:14:56,689 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:14:56,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:14:56,689 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:14:56,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:14:56,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:14:56,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:14:56,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:14:56,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:14:56,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:14:56,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:14:56,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:14:56,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:14:56,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:14:56,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:14:56,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:14:56,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:14:56,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:14:56,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:14:56,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:14:56,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:14:56,975 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:14:56,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 23:14:57,918 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:14:58,132 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:14:58,132 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 23:14:58,140 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23370519/565d66dc60644225a90bf072a7e6c632/FLAG2e38ce290 [2022-12-05 23:14:58,151 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23370519/565d66dc60644225a90bf072a7e6c632 [2022-12-05 23:14:58,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:14:58,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:14:58,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:14:58,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:14:58,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:14:58,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ed813e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58, skipping insertion in model container [2022-12-05 23:14:58,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:14:58,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:14:58,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 23:14:58,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:14:58,423 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:14:58,434 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 23:14:58,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:14:58,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:14:58,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:14:58,507 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:14:58,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58 WrapperNode [2022-12-05 23:14:58,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:14:58,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:14:58,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:14:58,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:14:58,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,559 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-05 23:14:58,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:14:58,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:14:58,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:14:58,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:14:58,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:14:58,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:14:58,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:14:58,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:14:58,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (1/1) ... [2022-12-05 23:14:58,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:14:58,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:14:58,627 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) [2022-12-05 23:14:58,648 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 [2022-12-05 23:14:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:14:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 23:14:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 23:14:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 23:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 23:14:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 23:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 23:14:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 23:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 23:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:14:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:14:58,665 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 23:14:58,746 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:14:58,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:14:58,857 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:14:58,862 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:14:58,862 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 23:14:58,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:14:58 BoogieIcfgContainer [2022-12-05 23:14:58,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:14:58,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:14:58,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:14:58,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:14:58,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:14:58" (1/3) ... [2022-12-05 23:14:58,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b39e071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:14:58, skipping insertion in model container [2022-12-05 23:14:58,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:58" (2/3) ... [2022-12-05 23:14:58,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b39e071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:14:58, skipping insertion in model container [2022-12-05 23:14:58,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:14:58" (3/3) ... [2022-12-05 23:14:58,869 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 23:14:58,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:14:58,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 23:14:58,881 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:14:58,943 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 23:14:58,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-05 23:14:59,025 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-05 23:14:59,025 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:14:59,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-05 23:14:59,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-05 23:14:59,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-05 23:14:59,032 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:14:59,059 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-05 23:14:59,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 69 transitions, 147 flow [2022-12-05 23:14:59,076 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-05 23:14:59,076 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:14:59,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-05 23:14:59,078 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-05 23:14:59,078 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-05 23:15:00,949 INFO L203 LiptonReduction]: Total number of compositions: 52 [2022-12-05 23:15:00,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:15:00,963 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;@1c062f00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:15:00,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 23:15:00,966 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-05 23:15:00,967 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:15:00,967 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:00,967 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:00,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:00,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:00,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1606016678, now seen corresponding path program 1 times [2022-12-05 23:15:00,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:00,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801126269] [2022-12-05 23:15:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:00,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:01,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:01,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:01,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801126269] [2022-12-05 23:15:01,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801126269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:01,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:01,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 23:15:01,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899284871] [2022-12-05 23:15:01,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:01,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 23:15:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:01,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 23:15:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 23:15:01,111 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 23:15:01,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 6.5) 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) [2022-12-05 23:15:01,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:01,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 23:15:01,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:01,171 INFO L130 PetriNetUnfolder]: 164/295 cut-off events. [2022-12-05 23:15:01,171 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-05 23:15:01,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 295 events. 164/295 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1205 event pairs, 164 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 585. Up to 271 conditions per place. [2022-12-05 23:15:01,174 INFO L137 encePairwiseOnDemand]: 17/18 looper letters, 14 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-05 23:15:01,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 71 flow [2022-12-05 23:15:01,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 23:15:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 23:15:01,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 21 transitions. [2022-12-05 23:15:01,183 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-05 23:15:01,184 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 21 transitions. [2022-12-05 23:15:01,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 71 flow [2022-12-05 23:15:01,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 23:15:01,187 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2022-12-05 23:15:01,188 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-05 23:15:01,191 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2022-12-05 23:15:01,191 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:01,192 INFO L89 Accepts]: Start accepts. Operand has 25 places, 17 transitions, 40 flow [2022-12-05 23:15:01,193 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:01,193 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:01,194 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 17 transitions, 40 flow [2022-12-05 23:15:01,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 40 flow [2022-12-05 23:15:01,199 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-05 23:15:01,200 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:15:01,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-05 23:15:01,200 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 17 transitions, 40 flow [2022-12-05 23:15:01,200 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-05 23:15:01,215 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:15:01,216 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 25 [2022-12-05 23:15:01,216 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2022-12-05 23:15:01,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) 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) [2022-12-05 23:15:01,217 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:01,217 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:01,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:15:01,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:01,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:01,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1753090809, now seen corresponding path program 1 times [2022-12-05 23:15:01,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:01,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842251827] [2022-12-05 23:15:01,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:01,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:01,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:01,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842251827] [2022-12-05 23:15:01,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842251827] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:01,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:01,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 23:15:01,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732670572] [2022-12-05 23:15:01,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:01,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 23:15:01,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:01,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 23:15:01,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 23:15:01,484 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 23:15:01,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:01,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:01,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 23:15:01,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:01,611 INFO L130 PetriNetUnfolder]: 562/908 cut-off events. [2022-12-05 23:15:01,611 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:15:01,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 908 events. 562/908 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3961 event pairs, 238 based on Foata normal form. 53/961 useless extension candidates. Maximal degree in co-relation 1862. Up to 464 conditions per place. [2022-12-05 23:15:01,616 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 24 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2022-12-05 23:15:01,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 31 transitions, 134 flow [2022-12-05 23:15:01,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 23:15:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 23:15:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-12-05 23:15:01,617 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6274509803921569 [2022-12-05 23:15:01,617 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 32 transitions. [2022-12-05 23:15:01,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 31 transitions, 134 flow [2022-12-05 23:15:01,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 31 transitions, 134 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 23:15:01,619 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 94 flow [2022-12-05 23:15:01,619 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2022-12-05 23:15:01,619 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2022-12-05 23:15:01,619 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:01,619 INFO L89 Accepts]: Start accepts. Operand has 28 places, 23 transitions, 94 flow [2022-12-05 23:15:01,620 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:01,620 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:01,620 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 23 transitions, 94 flow [2022-12-05 23:15:01,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 94 flow [2022-12-05 23:15:01,630 INFO L130 PetriNetUnfolder]: 88/211 cut-off events. [2022-12-05 23:15:01,630 INFO L131 PetriNetUnfolder]: For 32/40 co-relation queries the response was YES. [2022-12-05 23:15:01,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 211 events. 88/211 cut-off events. For 32/40 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1020 event pairs, 34 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 459. Up to 87 conditions per place. [2022-12-05 23:15:01,632 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 23 transitions, 94 flow [2022-12-05 23:15:01,632 INFO L188 LiptonReduction]: Number of co-enabled transitions 142 [2022-12-05 23:15:01,634 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:15:01,634 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 15 [2022-12-05 23:15:01,635 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 94 flow [2022-12-05 23:15:01,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:01,635 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:01,635 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:01,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 23:15:01,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:01,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:01,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1488759494, now seen corresponding path program 1 times [2022-12-05 23:15:01,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:01,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314676627] [2022-12-05 23:15:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:01,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:01,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:01,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314676627] [2022-12-05 23:15:01,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314676627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:01,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:01,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:15:01,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969162165] [2022-12-05 23:15:01,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:01,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:15:01,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:01,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:15:01,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:15:01,751 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 23:15:01,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 94 flow. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:01,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:01,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 23:15:01,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:01,841 INFO L130 PetriNetUnfolder]: 521/845 cut-off events. [2022-12-05 23:15:01,841 INFO L131 PetriNetUnfolder]: For 308/308 co-relation queries the response was YES. [2022-12-05 23:15:01,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2414 conditions, 845 events. 521/845 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3650 event pairs, 63 based on Foata normal form. 7/852 useless extension candidates. Maximal degree in co-relation 2402. Up to 390 conditions per place. [2022-12-05 23:15:01,845 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 34 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2022-12-05 23:15:01,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 42 transitions, 244 flow [2022-12-05 23:15:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 23:15:01,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 23:15:01,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-12-05 23:15:01,846 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5588235294117647 [2022-12-05 23:15:01,846 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 94 flow. Second operand 4 states and 38 transitions. [2022-12-05 23:15:01,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 42 transitions, 244 flow [2022-12-05 23:15:01,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 42 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 23:15:01,850 INFO L231 Difference]: Finished difference. Result has 32 places, 27 transitions, 138 flow [2022-12-05 23:15:01,850 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2022-12-05 23:15:01,851 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2022-12-05 23:15:01,851 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:01,851 INFO L89 Accepts]: Start accepts. Operand has 32 places, 27 transitions, 138 flow [2022-12-05 23:15:01,852 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:01,852 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:01,852 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 27 transitions, 138 flow [2022-12-05 23:15:01,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 138 flow [2022-12-05 23:15:01,864 INFO L130 PetriNetUnfolder]: 65/168 cut-off events. [2022-12-05 23:15:01,865 INFO L131 PetriNetUnfolder]: For 91/122 co-relation queries the response was YES. [2022-12-05 23:15:01,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 168 events. 65/168 cut-off events. For 91/122 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 767 event pairs, 22 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 443. Up to 73 conditions per place. [2022-12-05 23:15:01,866 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 27 transitions, 138 flow [2022-12-05 23:15:01,866 INFO L188 LiptonReduction]: Number of co-enabled transitions 166 [2022-12-05 23:15:01,872 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:15:01,873 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-05 23:15:01,874 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 138 flow [2022-12-05 23:15:01,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:01,874 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:01,874 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:01,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 23:15:01,874 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:01,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:01,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1093083724, now seen corresponding path program 1 times [2022-12-05 23:15:01,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:01,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114977972] [2022-12-05 23:15:01,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:01,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:01,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:01,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114977972] [2022-12-05 23:15:01,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114977972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:01,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:01,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 23:15:01,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669883507] [2022-12-05 23:15:01,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:01,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:15:01,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:01,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:15:01,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:15:01,970 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 23:15:01,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 138 flow. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:01,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:01,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 23:15:01,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:02,061 INFO L130 PetriNetUnfolder]: 486/791 cut-off events. [2022-12-05 23:15:02,062 INFO L131 PetriNetUnfolder]: For 570/570 co-relation queries the response was YES. [2022-12-05 23:15:02,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2505 conditions, 791 events. 486/791 cut-off events. For 570/570 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3382 event pairs, 110 based on Foata normal form. 7/798 useless extension candidates. Maximal degree in co-relation 2490. Up to 356 conditions per place. [2022-12-05 23:15:02,065 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 35 selfloop transitions, 13 changer transitions 0/48 dead transitions. [2022-12-05 23:15:02,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 48 transitions, 314 flow [2022-12-05 23:15:02,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 23:15:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 23:15:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2022-12-05 23:15:02,066 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2022-12-05 23:15:02,066 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 138 flow. Second operand 4 states and 40 transitions. [2022-12-05 23:15:02,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 48 transitions, 314 flow [2022-12-05 23:15:02,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 23:15:02,069 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 229 flow [2022-12-05 23:15:02,069 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=229, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2022-12-05 23:15:02,070 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2022-12-05 23:15:02,070 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:02,070 INFO L89 Accepts]: Start accepts. Operand has 37 places, 31 transitions, 229 flow [2022-12-05 23:15:02,070 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:02,070 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:02,071 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 31 transitions, 229 flow [2022-12-05 23:15:02,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 229 flow [2022-12-05 23:15:02,078 INFO L130 PetriNetUnfolder]: 48/130 cut-off events. [2022-12-05 23:15:02,078 INFO L131 PetriNetUnfolder]: For 200/259 co-relation queries the response was YES. [2022-12-05 23:15:02,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 130 events. 48/130 cut-off events. For 200/259 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 532 event pairs, 6 based on Foata normal form. 1/128 useless extension candidates. Maximal degree in co-relation 470. Up to 54 conditions per place. [2022-12-05 23:15:02,079 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 31 transitions, 229 flow [2022-12-05 23:15:02,079 INFO L188 LiptonReduction]: Number of co-enabled transitions 186 [2022-12-05 23:15:02,080 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:15:02,081 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-05 23:15:02,081 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 229 flow [2022-12-05 23:15:02,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:02,081 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:02,081 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:02,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 23:15:02,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1093081771, now seen corresponding path program 1 times [2022-12-05 23:15:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:02,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464229349] [2022-12-05 23:15:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:02,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:02,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:02,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464229349] [2022-12-05 23:15:02,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464229349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:02,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:02,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:15:02,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564212045] [2022-12-05 23:15:02,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:02,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:15:02,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:02,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:15:02,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:15:02,156 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 23:15:02,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 229 flow. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:02,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:02,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 23:15:02,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:02,227 INFO L130 PetriNetUnfolder]: 464/757 cut-off events. [2022-12-05 23:15:02,228 INFO L131 PetriNetUnfolder]: For 1719/1719 co-relation queries the response was YES. [2022-12-05 23:15:02,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 757 events. 464/757 cut-off events. For 1719/1719 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3016 event pairs, 94 based on Foata normal form. 8/765 useless extension candidates. Maximal degree in co-relation 2858. Up to 290 conditions per place. [2022-12-05 23:15:02,232 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 33 selfloop transitions, 16 changer transitions 0/49 dead transitions. [2022-12-05 23:15:02,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 443 flow [2022-12-05 23:15:02,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 23:15:02,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 23:15:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2022-12-05 23:15:02,238 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 23:15:02,238 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 229 flow. Second operand 4 states and 34 transitions. [2022-12-05 23:15:02,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 443 flow [2022-12-05 23:15:02,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 435 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 23:15:02,243 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 378 flow [2022-12-05 23:15:02,244 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=378, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2022-12-05 23:15:02,245 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2022-12-05 23:15:02,245 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:02,245 INFO L89 Accepts]: Start accepts. Operand has 42 places, 38 transitions, 378 flow [2022-12-05 23:15:02,246 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:02,246 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:02,246 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 38 transitions, 378 flow [2022-12-05 23:15:02,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 378 flow [2022-12-05 23:15:02,254 INFO L130 PetriNetUnfolder]: 43/120 cut-off events. [2022-12-05 23:15:02,254 INFO L131 PetriNetUnfolder]: For 399/481 co-relation queries the response was YES. [2022-12-05 23:15:02,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 120 events. 43/120 cut-off events. For 399/481 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 440 event pairs, 0 based on Foata normal form. 2/117 useless extension candidates. Maximal degree in co-relation 533. Up to 47 conditions per place. [2022-12-05 23:15:02,255 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 38 transitions, 378 flow [2022-12-05 23:15:02,255 INFO L188 LiptonReduction]: Number of co-enabled transitions 204 [2022-12-05 23:15:02,258 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:15:02,260 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 15 [2022-12-05 23:15:02,260 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 378 flow [2022-12-05 23:15:02,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:02,260 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:02,260 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:02,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 23:15:02,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:02,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:02,261 INFO L85 PathProgramCache]: Analyzing trace with hash 577453375, now seen corresponding path program 1 times [2022-12-05 23:15:02,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:02,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787382137] [2022-12-05 23:15:02,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:02,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:02,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:02,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787382137] [2022-12-05 23:15:02,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787382137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:02,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:02,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:15:02,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358797470] [2022-12-05 23:15:02,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:02,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:15:02,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:02,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:15:02,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:15:02,347 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 23:15:02,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 378 flow. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:02,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:02,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 23:15:02,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:02,442 INFO L130 PetriNetUnfolder]: 455/742 cut-off events. [2022-12-05 23:15:02,443 INFO L131 PetriNetUnfolder]: For 2350/2350 co-relation queries the response was YES. [2022-12-05 23:15:02,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3164 conditions, 742 events. 455/742 cut-off events. For 2350/2350 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3015 event pairs, 63 based on Foata normal form. 2/744 useless extension candidates. Maximal degree in co-relation 3140. Up to 372 conditions per place. [2022-12-05 23:15:02,447 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 38 selfloop transitions, 28 changer transitions 0/66 dead transitions. [2022-12-05 23:15:02,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 66 transitions, 707 flow [2022-12-05 23:15:02,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 23:15:02,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 23:15:02,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2022-12-05 23:15:02,449 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6323529411764706 [2022-12-05 23:15:02,449 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 378 flow. Second operand 4 states and 43 transitions. [2022-12-05 23:15:02,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 66 transitions, 707 flow [2022-12-05 23:15:02,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 66 transitions, 699 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 23:15:02,455 INFO L231 Difference]: Finished difference. Result has 47 places, 49 transitions, 635 flow [2022-12-05 23:15:02,456 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=635, PETRI_PLACES=47, PETRI_TRANSITIONS=49} [2022-12-05 23:15:02,458 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2022-12-05 23:15:02,458 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:02,458 INFO L89 Accepts]: Start accepts. Operand has 47 places, 49 transitions, 635 flow [2022-12-05 23:15:02,460 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:02,460 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:02,460 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 49 transitions, 635 flow [2022-12-05 23:15:02,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 49 transitions, 635 flow [2022-12-05 23:15:02,469 INFO L130 PetriNetUnfolder]: 41/113 cut-off events. [2022-12-05 23:15:02,469 INFO L131 PetriNetUnfolder]: For 681/800 co-relation queries the response was YES. [2022-12-05 23:15:02,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 113 events. 41/113 cut-off events. For 681/800 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 405 event pairs, 0 based on Foata normal form. 2/112 useless extension candidates. Maximal degree in co-relation 620. Up to 46 conditions per place. [2022-12-05 23:15:02,471 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 49 transitions, 635 flow [2022-12-05 23:15:02,471 INFO L188 LiptonReduction]: Number of co-enabled transitions 234 [2022-12-05 23:15:02,475 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:15:02,477 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-05 23:15:02,477 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 49 transitions, 635 flow [2022-12-05 23:15:02,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:02,478 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:02,478 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:02,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 23:15:02,478 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:02,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:02,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1801962660, now seen corresponding path program 1 times [2022-12-05 23:15:02,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:02,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539197739] [2022-12-05 23:15:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:02,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:02,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:02,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539197739] [2022-12-05 23:15:02,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539197739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:02,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:02,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:15:02,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626262691] [2022-12-05 23:15:02,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:02,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:15:02,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:02,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:15:02,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:15:02,571 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-05 23:15:02,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 49 transitions, 635 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2022-12-05 23:15:02,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:02,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-05 23:15:02,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:02,655 INFO L130 PetriNetUnfolder]: 310/585 cut-off events. [2022-12-05 23:15:02,655 INFO L131 PetriNetUnfolder]: For 4147/4224 co-relation queries the response was YES. [2022-12-05 23:15:02,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 585 events. 310/585 cut-off events. For 4147/4224 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3044 event pairs, 44 based on Foata normal form. 69/646 useless extension candidates. Maximal degree in co-relation 2583. Up to 296 conditions per place. [2022-12-05 23:15:02,658 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 73 selfloop transitions, 8 changer transitions 2/103 dead transitions. [2022-12-05 23:15:02,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 103 transitions, 1419 flow [2022-12-05 23:15:02,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 23:15:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 23:15:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-05 23:15:02,661 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6352941176470588 [2022-12-05 23:15:02,661 INFO L175 Difference]: Start difference. First operand has 47 places, 49 transitions, 635 flow. Second operand 5 states and 54 transitions. [2022-12-05 23:15:02,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 103 transitions, 1419 flow [2022-12-05 23:15:02,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 103 transitions, 1419 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 23:15:02,667 INFO L231 Difference]: Finished difference. Result has 54 places, 56 transitions, 695 flow [2022-12-05 23:15:02,667 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=695, PETRI_PLACES=54, PETRI_TRANSITIONS=56} [2022-12-05 23:15:02,668 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 27 predicate places. [2022-12-05 23:15:02,668 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:02,668 INFO L89 Accepts]: Start accepts. Operand has 54 places, 56 transitions, 695 flow [2022-12-05 23:15:02,670 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:02,670 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:02,670 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 56 transitions, 695 flow [2022-12-05 23:15:02,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 56 transitions, 695 flow [2022-12-05 23:15:02,689 INFO L130 PetriNetUnfolder]: 124/287 cut-off events. [2022-12-05 23:15:02,689 INFO L131 PetriNetUnfolder]: For 1329/1513 co-relation queries the response was YES. [2022-12-05 23:15:02,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1280 conditions, 287 events. 124/287 cut-off events. For 1329/1513 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1547 event pairs, 29 based on Foata normal form. 8/273 useless extension candidates. Maximal degree in co-relation 1250. Up to 161 conditions per place. [2022-12-05 23:15:02,692 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 56 transitions, 695 flow [2022-12-05 23:15:02,692 INFO L188 LiptonReduction]: Number of co-enabled transitions 384 [2022-12-05 23:15:02,702 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [253] L783-3-->L2: Formula: (and (= (ite (= (ite (= v_~__unbuffered_cnt~0_143 3) 1 0) 0) 0 1) v_~main$tmp_guard0~0_50) (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39| (mod v_~main$tmp_guard0~0_50 256))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_47|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_29|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_27|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_50, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] and [236] L744-->P1EXIT: Formula: (and (= |v_P1Thread1of1ForFork2_#res.offset_9| 0) (= v_~__unbuffered_cnt~0_119 (+ v_~__unbuffered_cnt~0_120 1)) (= |v_P1Thread1of1ForFork2_#res.base_9| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120} OutVars{P1Thread1of1ForFork2_#res.offset=|v_P1Thread1of1ForFork2_#res.offset_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, P1Thread1of1ForFork2_#res.base=|v_P1Thread1of1ForFork2_#res.base_9|} AuxVars[] AssignedVars[P1Thread1of1ForFork2_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork2_#res.base] [2022-12-05 23:15:02,725 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [253] L783-3-->L2: Formula: (and (= (ite (= (ite (= v_~__unbuffered_cnt~0_143 3) 1 0) 0) 0 1) v_~main$tmp_guard0~0_50) (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39| (mod v_~main$tmp_guard0~0_50 256))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_47|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_29|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_27|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_50, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] and [240] L729-->P0EXIT: Formula: (and (= |v_P0Thread1of1ForFork1_#res.base_9| 0) (= |v_P0Thread1of1ForFork1_#res.offset_9| 0) (= v_~__unbuffered_cnt~0_127 (+ v_~__unbuffered_cnt~0_128 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_128} OutVars{P0Thread1of1ForFork1_#res.offset=|v_P0Thread1of1ForFork1_#res.offset_9|, P0Thread1of1ForFork1_#res.base=|v_P0Thread1of1ForFork1_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127} AuxVars[] AssignedVars[P0Thread1of1ForFork1_#res.offset, P0Thread1of1ForFork1_#res.base, ~__unbuffered_cnt~0] [2022-12-05 23:15:02,749 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [253] L783-3-->L2: Formula: (and (= (ite (= (ite (= v_~__unbuffered_cnt~0_143 3) 1 0) 0) 0 1) v_~main$tmp_guard0~0_50) (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39| (mod v_~main$tmp_guard0~0_50 256))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_47|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_29|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_27|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_50, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] and [223] L759-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork0_#res.offset_17| 0) (= (+ v_~__unbuffered_cnt~0_94 1) v_~__unbuffered_cnt~0_93) (= |v_P2Thread1of1ForFork0_#res.base_17| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_94} OutVars{P2Thread1of1ForFork0_#res.base=|v_P2Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93, P2Thread1of1ForFork0_#res.offset=|v_P2Thread1of1ForFork0_#res.offset_17|} AuxVars[] AssignedVars[P2Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork0_#res.offset] [2022-12-05 23:15:02,797 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-05 23:15:02,798 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 130 [2022-12-05 23:15:02,798 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 52 transitions, 671 flow [2022-12-05 23:15:02,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2022-12-05 23:15:02,798 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:02,798 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:02,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 23:15:02,798 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:02,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:02,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1531212730, now seen corresponding path program 1 times [2022-12-05 23:15:02,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:02,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620344452] [2022-12-05 23:15:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:02,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:02,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:02,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:02,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620344452] [2022-12-05 23:15:02,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620344452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:02,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:02,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 23:15:02,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124804020] [2022-12-05 23:15:02,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:02,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 23:15:02,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:02,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 23:15:02,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 23:15:02,877 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-05 23:15:02,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 52 transitions, 671 flow. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:02,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:02,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-05 23:15:02,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:02,952 INFO L130 PetriNetUnfolder]: 195/393 cut-off events. [2022-12-05 23:15:02,952 INFO L131 PetriNetUnfolder]: For 2938/3012 co-relation queries the response was YES. [2022-12-05 23:15:02,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2112 conditions, 393 events. 195/393 cut-off events. For 2938/3012 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1875 event pairs, 15 based on Foata normal form. 62/447 useless extension candidates. Maximal degree in co-relation 2079. Up to 183 conditions per place. [2022-12-05 23:15:02,955 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 62 selfloop transitions, 11 changer transitions 7/100 dead transitions. [2022-12-05 23:15:02,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 100 transitions, 1347 flow [2022-12-05 23:15:02,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 23:15:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 23:15:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 65 transitions. [2022-12-05 23:15:02,956 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6372549019607843 [2022-12-05 23:15:02,956 INFO L175 Difference]: Start difference. First operand has 52 places, 52 transitions, 671 flow. Second operand 6 states and 65 transitions. [2022-12-05 23:15:02,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 100 transitions, 1347 flow [2022-12-05 23:15:02,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 100 transitions, 1341 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 23:15:02,961 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 753 flow [2022-12-05 23:15:02,962 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=753, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2022-12-05 23:15:02,962 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 31 predicate places. [2022-12-05 23:15:02,962 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:02,962 INFO L89 Accepts]: Start accepts. Operand has 58 places, 59 transitions, 753 flow [2022-12-05 23:15:02,963 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:02,963 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:02,963 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 59 transitions, 753 flow [2022-12-05 23:15:02,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions, 753 flow [2022-12-05 23:15:02,976 INFO L130 PetriNetUnfolder]: 76/202 cut-off events. [2022-12-05 23:15:02,976 INFO L131 PetriNetUnfolder]: For 1073/1267 co-relation queries the response was YES. [2022-12-05 23:15:02,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 202 events. 76/202 cut-off events. For 1073/1267 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 997 event pairs, 3 based on Foata normal form. 4/200 useless extension candidates. Maximal degree in co-relation 1070. Up to 112 conditions per place. [2022-12-05 23:15:02,978 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 59 transitions, 753 flow [2022-12-05 23:15:02,978 INFO L188 LiptonReduction]: Number of co-enabled transitions 296 [2022-12-05 23:15:02,983 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [253] L783-3-->L2: Formula: (and (= (ite (= (ite (= v_~__unbuffered_cnt~0_143 3) 1 0) 0) 0 1) v_~main$tmp_guard0~0_50) (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39| (mod v_~main$tmp_guard0~0_50 256))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_47|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_29|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_27|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_50, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] and [240] L729-->P0EXIT: Formula: (and (= |v_P0Thread1of1ForFork1_#res.base_9| 0) (= |v_P0Thread1of1ForFork1_#res.offset_9| 0) (= v_~__unbuffered_cnt~0_127 (+ v_~__unbuffered_cnt~0_128 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_128} OutVars{P0Thread1of1ForFork1_#res.offset=|v_P0Thread1of1ForFork1_#res.offset_9|, P0Thread1of1ForFork1_#res.base=|v_P0Thread1of1ForFork1_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127} AuxVars[] AssignedVars[P0Thread1of1ForFork1_#res.offset, P0Thread1of1ForFork1_#res.base, ~__unbuffered_cnt~0] [2022-12-05 23:15:03,005 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [253] L783-3-->L2: Formula: (and (= (ite (= (ite (= v_~__unbuffered_cnt~0_143 3) 1 0) 0) 0 1) v_~main$tmp_guard0~0_50) (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39| (mod v_~main$tmp_guard0~0_50 256))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_47|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_29|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_27|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_50, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] and [223] L759-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork0_#res.offset_17| 0) (= (+ v_~__unbuffered_cnt~0_94 1) v_~__unbuffered_cnt~0_93) (= |v_P2Thread1of1ForFork0_#res.base_17| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_94} OutVars{P2Thread1of1ForFork0_#res.base=|v_P2Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93, P2Thread1of1ForFork0_#res.offset=|v_P2Thread1of1ForFork0_#res.offset_17|} AuxVars[] AssignedVars[P2Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork0_#res.offset] [2022-12-05 23:15:03,029 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [253] L783-3-->L2: Formula: (and (= (ite (= (ite (= v_~__unbuffered_cnt~0_143 3) 1 0) 0) 0 1) v_~main$tmp_guard0~0_50) (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39| (mod v_~main$tmp_guard0~0_50 256))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_47|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_29|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_27|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_50, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_39|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] and [236] L744-->P1EXIT: Formula: (and (= |v_P1Thread1of1ForFork2_#res.offset_9| 0) (= v_~__unbuffered_cnt~0_119 (+ v_~__unbuffered_cnt~0_120 1)) (= |v_P1Thread1of1ForFork2_#res.base_9| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120} OutVars{P1Thread1of1ForFork2_#res.offset=|v_P1Thread1of1ForFork2_#res.offset_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, P1Thread1of1ForFork2_#res.base=|v_P1Thread1of1ForFork2_#res.base_9|} AuxVars[] AssignedVars[P1Thread1of1ForFork2_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork2_#res.base] [2022-12-05 23:15:03,066 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-05 23:15:03,067 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 105 [2022-12-05 23:15:03,067 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 715 flow [2022-12-05 23:15:03,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:03,067 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:03,067 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:03,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 23:15:03,067 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:03,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1136054998, now seen corresponding path program 1 times [2022-12-05 23:15:03,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:03,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042416259] [2022-12-05 23:15:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:03,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:03,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:03,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:03,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042416259] [2022-12-05 23:15:03,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042416259] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:03,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:03,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 23:15:03,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658802309] [2022-12-05 23:15:03,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:03,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 23:15:03,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:03,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 23:15:03,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 23:15:03,139 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 23:15:03,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 715 flow. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-12-05 23:15:03,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:03,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 23:15:03,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:03,209 INFO L130 PetriNetUnfolder]: 275/525 cut-off events. [2022-12-05 23:15:03,209 INFO L131 PetriNetUnfolder]: For 3821/3821 co-relation queries the response was YES. [2022-12-05 23:15:03,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3272 conditions, 525 events. 275/525 cut-off events. For 3821/3821 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2310 event pairs, 28 based on Foata normal form. 7/532 useless extension candidates. Maximal degree in co-relation 3236. Up to 281 conditions per place. [2022-12-05 23:15:03,212 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 48 selfloop transitions, 16 changer transitions 35/99 dead transitions. [2022-12-05 23:15:03,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 99 transitions, 1322 flow [2022-12-05 23:15:03,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 23:15:03,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 23:15:03,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2022-12-05 23:15:03,213 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5058823529411764 [2022-12-05 23:15:03,213 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 715 flow. Second operand 5 states and 43 transitions. [2022-12-05 23:15:03,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 99 transitions, 1322 flow [2022-12-05 23:15:03,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 99 transitions, 1262 flow, removed 24 selfloop flow, removed 3 redundant places. [2022-12-05 23:15:03,221 INFO L231 Difference]: Finished difference. Result has 58 places, 44 transitions, 554 flow [2022-12-05 23:15:03,222 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=554, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2022-12-05 23:15:03,222 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 31 predicate places. [2022-12-05 23:15:03,222 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:03,222 INFO L89 Accepts]: Start accepts. Operand has 58 places, 44 transitions, 554 flow [2022-12-05 23:15:03,223 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:03,223 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:03,223 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 44 transitions, 554 flow [2022-12-05 23:15:03,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 44 transitions, 554 flow [2022-12-05 23:15:03,233 INFO L130 PetriNetUnfolder]: 48/136 cut-off events. [2022-12-05 23:15:03,234 INFO L131 PetriNetUnfolder]: For 693/766 co-relation queries the response was YES. [2022-12-05 23:15:03,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 136 events. 48/136 cut-off events. For 693/766 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 547 event pairs, 3 based on Foata normal form. 2/134 useless extension candidates. Maximal degree in co-relation 692. Up to 48 conditions per place. [2022-12-05 23:15:03,235 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 44 transitions, 554 flow [2022-12-05 23:15:03,235 INFO L188 LiptonReduction]: Number of co-enabled transitions 188 [2022-12-05 23:15:03,236 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:15:03,237 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 15 [2022-12-05 23:15:03,237 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 554 flow [2022-12-05 23:15:03,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-12-05 23:15:03,237 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:03,237 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:03,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 23:15:03,238 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:03,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:03,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1475652706, now seen corresponding path program 2 times [2022-12-05 23:15:03,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:03,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114742491] [2022-12-05 23:15:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:03,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:03,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:03,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:03,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114742491] [2022-12-05 23:15:03,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114742491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:03,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:03,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 23:15:03,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521558250] [2022-12-05 23:15:03,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:03,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 23:15:03,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:03,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 23:15:03,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 23:15:03,338 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 23:15:03,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 554 flow. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2022-12-05 23:15:03,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:03,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 23:15:03,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:03,411 INFO L130 PetriNetUnfolder]: 208/403 cut-off events. [2022-12-05 23:15:03,411 INFO L131 PetriNetUnfolder]: For 3260/3260 co-relation queries the response was YES. [2022-12-05 23:15:03,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2464 conditions, 403 events. 208/403 cut-off events. For 3260/3260 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1665 event pairs, 32 based on Foata normal form. 7/410 useless extension candidates. Maximal degree in co-relation 2428. Up to 125 conditions per place. [2022-12-05 23:15:03,413 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 34 selfloop transitions, 14 changer transitions 38/86 dead transitions. [2022-12-05 23:15:03,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 86 transitions, 1025 flow [2022-12-05 23:15:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 23:15:03,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 23:15:03,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2022-12-05 23:15:03,414 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 23:15:03,414 INFO L175 Difference]: Start difference. First operand has 58 places, 44 transitions, 554 flow. Second operand 6 states and 51 transitions. [2022-12-05 23:15:03,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 86 transitions, 1025 flow [2022-12-05 23:15:03,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 86 transitions, 939 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-12-05 23:15:03,420 INFO L231 Difference]: Finished difference. Result has 59 places, 34 transitions, 388 flow [2022-12-05 23:15:03,420 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=59, PETRI_TRANSITIONS=34} [2022-12-05 23:15:03,420 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 32 predicate places. [2022-12-05 23:15:03,420 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:15:03,420 INFO L89 Accepts]: Start accepts. Operand has 59 places, 34 transitions, 388 flow [2022-12-05 23:15:03,421 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:15:03,421 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:03,421 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 34 transitions, 388 flow [2022-12-05 23:15:03,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 34 transitions, 388 flow [2022-12-05 23:15:03,427 INFO L130 PetriNetUnfolder]: 19/73 cut-off events. [2022-12-05 23:15:03,427 INFO L131 PetriNetUnfolder]: For 406/436 co-relation queries the response was YES. [2022-12-05 23:15:03,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 73 events. 19/73 cut-off events. For 406/436 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 232 event pairs, 1 based on Foata normal form. 3/74 useless extension candidates. Maximal degree in co-relation 351. Up to 24 conditions per place. [2022-12-05 23:15:03,428 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 34 transitions, 388 flow [2022-12-05 23:15:03,428 INFO L188 LiptonReduction]: Number of co-enabled transitions 146 [2022-12-05 23:15:03,430 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [188] L756-->L759: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] and [245] $Ultimate##0-->L724: Formula: (and (= v_P0Thread1of1ForFork1_~arg.base_5 |v_P0Thread1of1ForFork1_#in~arg.base_5|) (= v_P0Thread1of1ForFork1_~arg.offset_5 |v_P0Thread1of1ForFork1_#in~arg.offset_5|) (= v_~y~0_44 2)) InVars {P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|} OutVars{P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_~arg.offset=v_P0Thread1of1ForFork1_~arg.offset_5, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|, ~y~0=v_~y~0_44, P0Thread1of1ForFork1_~arg.base=v_P0Thread1of1ForFork1_~arg.base_5} AuxVars[] AssignedVars[P0Thread1of1ForFork1_~arg.offset, ~y~0, P0Thread1of1ForFork1_~arg.base] [2022-12-05 23:15:03,445 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [176] L724-->L729: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] and [245] $Ultimate##0-->L724: Formula: (and (= v_P0Thread1of1ForFork1_~arg.base_5 |v_P0Thread1of1ForFork1_#in~arg.base_5|) (= v_P0Thread1of1ForFork1_~arg.offset_5 |v_P0Thread1of1ForFork1_#in~arg.offset_5|) (= v_~y~0_44 2)) InVars {P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|} OutVars{P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_~arg.offset=v_P0Thread1of1ForFork1_~arg.offset_5, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|, ~y~0=v_~y~0_44, P0Thread1of1ForFork1_~arg.base=v_P0Thread1of1ForFork1_~arg.base_5} AuxVars[] AssignedVars[P0Thread1of1ForFork1_~arg.offset, ~y~0, P0Thread1of1ForFork1_~arg.base] [2022-12-05 23:15:03,535 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-05 23:15:03,535 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 115 [2022-12-05 23:15:03,535 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 33 transitions, 392 flow [2022-12-05 23:15:03,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2022-12-05 23:15:03,536 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:15:03,536 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:03,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 23:15:03,536 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 23:15:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:15:03,536 INFO L85 PathProgramCache]: Analyzing trace with hash -783789787, now seen corresponding path program 1 times [2022-12-05 23:15:03,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:15:03,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802593394] [2022-12-05 23:15:03,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:15:03,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:15:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:15:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:15:03,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:15:03,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802593394] [2022-12-05 23:15:03,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802593394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:15:03,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:15:03,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 23:15:03,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767858996] [2022-12-05 23:15:03,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:15:03,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 23:15:03,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:15:03,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 23:15:03,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-05 23:15:03,631 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 23:15:03,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 33 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:03,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:15:03,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 23:15:03,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:15:03,666 INFO L130 PetriNetUnfolder]: 73/152 cut-off events. [2022-12-05 23:15:03,666 INFO L131 PetriNetUnfolder]: For 1067/1092 co-relation queries the response was YES. [2022-12-05 23:15:03,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 835 conditions, 152 events. 73/152 cut-off events. For 1067/1092 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 539 event pairs, 12 based on Foata normal form. 13/158 useless extension candidates. Maximal degree in co-relation 814. Up to 58 conditions per place. [2022-12-05 23:15:03,667 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2022-12-05 23:15:03,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 43 transitions, 524 flow [2022-12-05 23:15:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 23:15:03,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 23:15:03,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2022-12-05 23:15:03,668 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 23:15:03,668 INFO L175 Difference]: Start difference. First operand has 56 places, 33 transitions, 392 flow. Second operand 5 states and 45 transitions. [2022-12-05 23:15:03,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 43 transitions, 524 flow [2022-12-05 23:15:03,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 43 transitions, 413 flow, removed 19 selfloop flow, removed 10 redundant places. [2022-12-05 23:15:03,670 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2022-12-05 23:15:03,670 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2022-12-05 23:15:03,670 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 22 predicate places. [2022-12-05 23:15:03,670 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:15:03,671 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 0 transitions, 0 flow [2022-12-05 23:15:03,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-05 23:15:03,671 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 23:15:03,671 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:15:03,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-05 23:15:03,671 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-05 23:15:03,671 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-05 23:15:03,671 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:15:03,672 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-05 23:15:03,672 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-05 23:15:03,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:15:03,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 23:15:03,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 23:15:03,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 23:15:03,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 23:15:03,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 23:15:03,674 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:15:03,676 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 23:15:03,676 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 23:15:03,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 11:15:03 BasicIcfg [2022-12-05 23:15:03,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 23:15:03,678 INFO L158 Benchmark]: Toolchain (without parser) took 5524.89ms. Allocated memory was 175.1MB in the beginning and 263.2MB in the end (delta: 88.1MB). Free memory was 149.8MB in the beginning and 148.2MB in the end (delta: 1.6MB). Peak memory consumption was 91.1MB. Max. memory is 8.0GB. [2022-12-05 23:15:03,679 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:15:03,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.71ms. Allocated memory is still 175.1MB. Free memory was 149.7MB in the beginning and 126.1MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-05 23:15:03,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.71ms. Allocated memory is still 175.1MB. Free memory was 126.1MB in the beginning and 124.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:15:03,679 INFO L158 Benchmark]: Boogie Preprocessor took 43.10ms. Allocated memory is still 175.1MB. Free memory was 124.1MB in the beginning and 122.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 23:15:03,679 INFO L158 Benchmark]: RCFGBuilder took 260.21ms. Allocated memory is still 175.1MB. Free memory was 122.6MB in the beginning and 108.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 23:15:03,679 INFO L158 Benchmark]: TraceAbstraction took 4812.84ms. Allocated memory was 175.1MB in the beginning and 263.2MB in the end (delta: 88.1MB). Free memory was 108.3MB in the beginning and 148.2MB in the end (delta: -39.9MB). Peak memory consumption was 49.2MB. Max. memory is 8.0GB. [2022-12-05 23:15:03,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 353.71ms. Allocated memory is still 175.1MB. Free memory was 149.7MB in the beginning and 126.1MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.71ms. Allocated memory is still 175.1MB. Free memory was 126.1MB in the beginning and 124.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.10ms. Allocated memory is still 175.1MB. Free memory was 124.1MB in the beginning and 122.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 260.21ms. Allocated memory is still 175.1MB. Free memory was 122.6MB in the beginning and 108.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4812.84ms. Allocated memory was 175.1MB in the beginning and 263.2MB in the end (delta: 88.1MB). Free memory was 108.3MB in the beginning and 148.2MB in the end (delta: -39.9MB). Peak memory consumption was 49.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 78 PlacesBefore, 27 PlacesAfterwards, 69 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 787, independent: 748, independent conditional: 748, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 787, independent: 748, independent conditional: 0, independent unconditional: 748, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 787, independent: 748, independent conditional: 0, independent unconditional: 748, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 787, independent: 748, independent conditional: 0, independent unconditional: 748, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 677, independent: 644, independent conditional: 0, independent unconditional: 644, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 677, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 100, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 787, independent: 104, independent conditional: 0, independent unconditional: 104, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 677, unknown conditional: 0, unknown unconditional: 677] , Statistics on independence cache: Total cache size (in pairs): 1101, Positive cache size: 1068, Positive conditional cache size: 0, Positive unconditional cache size: 1068, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, 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, 24 PlacesBefore, 24 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, independent: 46, independent conditional: 46, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 60, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 60, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 51, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 51, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 51, unknown conditional: 0, unknown unconditional: 51] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 28 PlacesBefore, 28 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, independent: 19, independent conditional: 19, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 22, independent: 19, independent conditional: 3, independent unconditional: 16, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 22, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, independent: 28, independent conditional: 28, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 31, independent: 28, independent conditional: 10, independent unconditional: 18, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 31, independent: 28, independent conditional: 1, independent unconditional: 27, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31, independent: 28, independent conditional: 1, independent unconditional: 27, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31, independent: 25, independent conditional: 1, independent unconditional: 24, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 57, independent: 50, independent conditional: 50, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 57, independent: 50, independent conditional: 22, independent unconditional: 28, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 57, independent: 50, independent conditional: 3, independent unconditional: 47, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 57, independent: 50, independent conditional: 3, independent unconditional: 47, dependent: 7, dependent conditional: 0, dependent unconditional: 7, 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: 57, independent: 50, independent conditional: 3, independent unconditional: 47, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 19, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 42 PlacesBefore, 42 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 145, independent: 135, independent conditional: 135, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 145, independent: 135, independent conditional: 44, independent unconditional: 91, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 145, independent: 135, independent conditional: 9, independent unconditional: 126, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 145, independent: 135, independent conditional: 9, independent unconditional: 126, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 1, independent unconditional: 5, 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: 145, independent: 129, independent conditional: 8, independent unconditional: 121, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 6, unknown conditional: 1, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 51, Positive conditional cache size: 1, Positive unconditional cache size: 50, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 35, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 237, independent: 221, independent conditional: 221, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 237, independent: 221, independent conditional: 73, independent unconditional: 148, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 237, independent: 221, independent conditional: 17, independent unconditional: 204, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 237, independent: 221, independent conditional: 17, independent unconditional: 204, dependent: 16, dependent conditional: 0, dependent unconditional: 16, 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: 237, independent: 221, independent conditional: 17, independent unconditional: 204, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 51, Positive conditional cache size: 1, Positive unconditional cache size: 50, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 56, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 54 PlacesBefore, 52 PlacesAfterwards, 56 TransitionsBefore, 52 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 150, independent: 150, independent conditional: 150, 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: 150, independent: 150, independent conditional: 150, 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: 150, independent: 150, independent conditional: 133, independent unconditional: 17, 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: 150, independent: 150, independent conditional: 133, independent unconditional: 17, 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: 21, independent: 21, independent conditional: 17, independent unconditional: 4, 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: 21, independent: 21, independent conditional: 0, independent unconditional: 21, 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: 150, independent: 129, independent conditional: 116, independent unconditional: 13, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 21, unknown conditional: 17, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 75, Positive conditional cache size: 18, Positive unconditional cache size: 57, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 58 PlacesBefore, 56 PlacesAfterwards, 59 TransitionsBefore, 55 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 92, independent: 92, independent conditional: 92, 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: 92, independent: 92, independent conditional: 92, 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: 92, independent: 92, independent conditional: 65, independent unconditional: 27, 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: 92, independent: 92, independent conditional: 65, independent unconditional: 27, 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: 17, independent: 17, independent conditional: 10, independent unconditional: 7, 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: 17, independent: 17, independent conditional: 0, independent unconditional: 17, 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: 92, independent: 75, independent conditional: 55, independent unconditional: 20, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 17, unknown conditional: 10, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 96, Positive conditional cache size: 28, Positive unconditional cache size: 68, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 27, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 58 PlacesBefore, 58 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 188 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): 107, Positive cache size: 96, Positive conditional cache size: 28, Positive unconditional cache size: 68, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 57 PlacesBefore, 56 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, independent: 16, independent conditional: 16, 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: 16, independent: 16, independent conditional: 12, independent unconditional: 4, 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: 16, independent: 16, independent conditional: 5, independent unconditional: 11, 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: 16, independent: 16, independent conditional: 5, independent unconditional: 11, 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: 4, independent: 4, independent conditional: 0, independent unconditional: 4, 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: 4, independent: 4, independent conditional: 0, independent unconditional: 4, 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: 16, independent: 12, independent conditional: 5, independent unconditional: 7, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 126, Positive cache size: 115, Positive conditional cache size: 30, Positive unconditional cache size: 85, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 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): 126, Positive cache size: 115, Positive conditional cache size: 30, Positive unconditional cache size: 85, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 202 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 202 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 486 IncrementalHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 23 mSDtfsCounter, 486 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=753occurred in iteration=8, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 23:15:03,700 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...