/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:42:08,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:42:08,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:42:08,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:42:08,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:42:08,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:42:08,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:42:08,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:42:08,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:42:08,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:42:08,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:42:08,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:42:08,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:42:08,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:42:08,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:42:08,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:42:08,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:42:08,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:42:08,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:42:08,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:42:08,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:42:08,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:42:08,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:42:08,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:42:08,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:42:08,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:42:08,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:42:08,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:42:08,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:42:08,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:42:08,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:42:08,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:42:08,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:42:08,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:42:08,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:42:08,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:42:08,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:42:08,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:42:08,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:42:08,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:42:08,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:42:08,562 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-NoLbe.epf [2022-12-11 23:42:08,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:42:08,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:42:08,602 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:42:08,602 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:42:08,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:42:08,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:42:08,604 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:42:08,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:42:08,604 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:42:08,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:42:08,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:42:08,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:42:08,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:42:08,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:42:08,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:42:08,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:42:08,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:42:08,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:42:08,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:42:08,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:42:08,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:42:08,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:42:08,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:42:08,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:42:08,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:42:08,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:42:08,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:42:08,608 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:42:08,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:42:08,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:42:08,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:42:08,609 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:42:08,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:42:08,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:42:08,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:42:08,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:42:08,987 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:42:08,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:10,168 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:42:10,469 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:42:10,470 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:10,482 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e557620/5f84426f63a64185970cc41e5f7a6db8/FLAG950fc8a7c [2022-12-11 23:42:10,496 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e557620/5f84426f63a64185970cc41e5f7a6db8 [2022-12-11 23:42:10,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:42:10,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:42:10,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:42:10,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:42:10,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:42:10,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:10,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c66c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10, skipping insertion in model container [2022-12-11 23:42:10,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:10,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:42:10,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:42:10,680 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-11 23:42:10,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:42:10,887 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:42:10,899 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-11 23:42:10,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:10,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:10,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:42:10,996 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:42:10,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10 WrapperNode [2022-12-11 23:42:10,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:42:10,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:42:10,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:42:10,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:42:11,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,058 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-12-11 23:42:11,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:42:11,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:42:11,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:42:11,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:42:11,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,092 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:42:11,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:42:11,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:42:11,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:42:11,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (1/1) ... [2022-12-11 23:42:11,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:42:11,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:42:11,137 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) [2022-12-11 23:42:11,148 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 [2022-12-11 23:42:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:42:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 23:42:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:42:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:42:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:42:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 23:42:11,183 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 23:42:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 23:42:11,184 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 23:42:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 23:42:11,184 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 23:42:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-11 23:42:11,184 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-11 23:42:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:42:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 23:42:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:42:11,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:42:11,186 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:42:11,361 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:42:11,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:42:11,578 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:42:11,585 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:42:11,585 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:42:11,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:42:11 BoogieIcfgContainer [2022-12-11 23:42:11,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:42:11,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:42:11,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:42:11,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:42:11,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:42:10" (1/3) ... [2022-12-11 23:42:11,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fee2679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:42:11, skipping insertion in model container [2022-12-11 23:42:11,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:10" (2/3) ... [2022-12-11 23:42:11,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fee2679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:42:11, skipping insertion in model container [2022-12-11 23:42:11,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:42:11" (3/3) ... [2022-12-11 23:42:11,599 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:11,618 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:42:11,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 23:42:11,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:42:11,675 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 23:42:11,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 98 transitions, 216 flow [2022-12-11 23:42:11,787 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-12-11 23:42:11,788 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:42:11,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-11 23:42:11,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 98 transitions, 216 flow [2022-12-11 23:42:11,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 80 transitions, 172 flow [2022-12-11 23:42:11,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:42:11,820 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19e88944, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:42:11,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-11 23:42:11,853 INFO L130 PetriNetUnfolder]: 1/79 cut-off events. [2022-12-11 23:42:11,853 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:42:11,854 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:11,854 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:11,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:42:11,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:11,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1486258359, now seen corresponding path program 1 times [2022-12-11 23:42:11,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:11,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192860895] [2022-12-11 23:42:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:11,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:12,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:12,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192860895] [2022-12-11 23:42:12,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192860895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:12,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:12,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:12,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259769609] [2022-12-11 23:42:12,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:12,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:12,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:12,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:12,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:12,820 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-11 23:42:12,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:12,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:12,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-11 23:42:12,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:13,344 INFO L130 PetriNetUnfolder]: 872/1996 cut-off events. [2022-12-11 23:42:13,345 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-11 23:42:13,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3420 conditions, 1996 events. 872/1996 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 13447 event pairs, 55 based on Foata normal form. 77/2013 useless extension candidates. Maximal degree in co-relation 3385. Up to 434 conditions per place. [2022-12-11 23:42:13,369 INFO L137 encePairwiseOnDemand]: 85/98 looper letters, 27 selfloop transitions, 8 changer transitions 56/150 dead transitions. [2022-12-11 23:42:13,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 150 transitions, 500 flow [2022-12-11 23:42:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:13,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1059 transitions. [2022-12-11 23:42:13,390 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8312401883830455 [2022-12-11 23:42:13,393 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 12 predicate places. [2022-12-11 23:42:13,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 150 transitions, 500 flow [2022-12-11 23:42:13,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 94 transitions, 276 flow [2022-12-11 23:42:13,406 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 276 flow [2022-12-11 23:42:13,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:13,406 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:13,407 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:13,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:42:13,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:42:13,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:13,426 INFO L85 PathProgramCache]: Analyzing trace with hash 312540168, now seen corresponding path program 1 times [2022-12-11 23:42:13,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:13,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558570564] [2022-12-11 23:42:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:13,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:13,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:13,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558570564] [2022-12-11 23:42:13,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558570564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:13,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:13,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:13,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130827080] [2022-12-11 23:42:13,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:13,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:13,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:13,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:13,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:13,705 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-11 23:42:13,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 276 flow. Second operand has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:13,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:13,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-11 23:42:13,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:13,997 INFO L130 PetriNetUnfolder]: 575/1791 cut-off events. [2022-12-11 23:42:13,997 INFO L131 PetriNetUnfolder]: For 328/726 co-relation queries the response was YES. [2022-12-11 23:42:14,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3407 conditions, 1791 events. 575/1791 cut-off events. For 328/726 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 13875 event pairs, 51 based on Foata normal form. 38/1774 useless extension candidates. Maximal degree in co-relation 3367. Up to 555 conditions per place. [2022-12-11 23:42:14,010 INFO L137 encePairwiseOnDemand]: 89/98 looper letters, 25 selfloop transitions, 5 changer transitions 51/150 dead transitions. [2022-12-11 23:42:14,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 150 transitions, 683 flow [2022-12-11 23:42:14,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:42:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:42:14,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 836 transitions. [2022-12-11 23:42:14,013 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8530612244897959 [2022-12-11 23:42:14,013 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 12 predicate places. [2022-12-11 23:42:14,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 150 transitions, 683 flow [2022-12-11 23:42:14,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 99 transitions, 365 flow [2022-12-11 23:42:14,021 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 99 transitions, 365 flow [2022-12-11 23:42:14,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:14,021 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:14,022 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:14,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:42:14,022 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 2 more)] === [2022-12-11 23:42:14,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:14,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2099021513, now seen corresponding path program 1 times [2022-12-11 23:42:14,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:14,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769224243] [2022-12-11 23:42:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:14,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:14,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:14,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:14,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769224243] [2022-12-11 23:42:14,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769224243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:14,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:14,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:14,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315080409] [2022-12-11 23:42:14,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:14,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:14,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:14,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:14,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:14,257 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-11 23:42:14,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 99 transitions, 365 flow. Second operand has 7 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:14,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:14,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-11 23:42:14,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:14,555 INFO L130 PetriNetUnfolder]: 283/1031 cut-off events. [2022-12-11 23:42:14,555 INFO L131 PetriNetUnfolder]: For 371/558 co-relation queries the response was YES. [2022-12-11 23:42:14,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2439 conditions, 1031 events. 283/1031 cut-off events. For 371/558 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6869 event pairs, 36 based on Foata normal form. 40/1048 useless extension candidates. Maximal degree in co-relation 2392. Up to 264 conditions per place. [2022-12-11 23:42:14,565 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 45 selfloop transitions, 13 changer transitions 46/163 dead transitions. [2022-12-11 23:42:14,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 163 transitions, 920 flow [2022-12-11 23:42:14,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:14,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1041 transitions. [2022-12-11 23:42:14,568 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8171114599686028 [2022-12-11 23:42:14,570 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 18 predicate places. [2022-12-11 23:42:14,570 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 163 transitions, 920 flow [2022-12-11 23:42:14,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 117 transitions, 606 flow [2022-12-11 23:42:14,577 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 117 transitions, 606 flow [2022-12-11 23:42:14,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:14,577 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:14,577 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:14,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:42:14,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:42:14,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:14,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1535772121, now seen corresponding path program 1 times [2022-12-11 23:42:14,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:14,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972080311] [2022-12-11 23:42:14,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:14,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:14,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:14,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972080311] [2022-12-11 23:42:14,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972080311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:14,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:14,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:42:14,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412342185] [2022-12-11 23:42:14,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:14,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:42:14,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:14,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:42:14,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:42:14,891 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-11 23:42:14,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 117 transitions, 606 flow. Second operand has 8 states, 8 states have (on average 76.125) internal successors, (609), 8 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:14,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:14,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-11 23:42:14,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:15,155 INFO L130 PetriNetUnfolder]: 219/928 cut-off events. [2022-12-11 23:42:15,156 INFO L131 PetriNetUnfolder]: For 591/1072 co-relation queries the response was YES. [2022-12-11 23:42:15,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2583 conditions, 928 events. 219/928 cut-off events. For 591/1072 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6196 event pairs, 5 based on Foata normal form. 62/969 useless extension candidates. Maximal degree in co-relation 2529. Up to 238 conditions per place. [2022-12-11 23:42:15,162 INFO L137 encePairwiseOnDemand]: 86/98 looper letters, 34 selfloop transitions, 16 changer transitions 99/208 dead transitions. [2022-12-11 23:42:15,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 208 transitions, 1574 flow [2022-12-11 23:42:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 23:42:15,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 23:42:15,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 891 transitions. [2022-12-11 23:42:15,165 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.826530612244898 [2022-12-11 23:42:15,166 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2022-12-11 23:42:15,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 208 transitions, 1574 flow [2022-12-11 23:42:15,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 109 transitions, 620 flow [2022-12-11 23:42:15,172 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 109 transitions, 620 flow [2022-12-11 23:42:15,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.125) internal successors, (609), 8 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:15,173 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:15,173 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:15,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:42:15,174 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 2 more)] === [2022-12-11 23:42:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:15,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1330326873, now seen corresponding path program 1 times [2022-12-11 23:42:15,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:15,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875355340] [2022-12-11 23:42:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:15,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:15,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875355340] [2022-12-11 23:42:15,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875355340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:15,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:15,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:15,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113047904] [2022-12-11 23:42:15,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:15,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:15,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:15,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:15,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:15,392 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-11 23:42:15,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 109 transitions, 620 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:15,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:15,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-11 23:42:15,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:15,624 INFO L130 PetriNetUnfolder]: 70/475 cut-off events. [2022-12-11 23:42:15,625 INFO L131 PetriNetUnfolder]: For 335/582 co-relation queries the response was YES. [2022-12-11 23:42:15,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 475 events. 70/475 cut-off events. For 335/582 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2992 event pairs, 0 based on Foata normal form. 21/490 useless extension candidates. Maximal degree in co-relation 1389. Up to 133 conditions per place. [2022-12-11 23:42:15,629 INFO L137 encePairwiseOnDemand]: 88/98 looper letters, 45 selfloop transitions, 14 changer transitions 26/144 dead transitions. [2022-12-11 23:42:15,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 144 transitions, 1126 flow [2022-12-11 23:42:15,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:15,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:15,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1023 transitions. [2022-12-11 23:42:15,632 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8029827315541601 [2022-12-11 23:42:15,635 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 25 predicate places. [2022-12-11 23:42:15,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 144 transitions, 1126 flow [2022-12-11 23:42:15,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 118 transitions, 828 flow [2022-12-11 23:42:15,639 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 118 transitions, 828 flow [2022-12-11 23:42:15,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:15,640 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:15,640 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:15,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:42:15,640 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 2 more)] === [2022-12-11 23:42:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:15,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2090683090, now seen corresponding path program 1 times [2022-12-11 23:42:15,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:15,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426259716] [2022-12-11 23:42:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:15,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:15,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:15,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426259716] [2022-12-11 23:42:15,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426259716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:15,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:15,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:15,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918087486] [2022-12-11 23:42:15,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:15,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:15,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:15,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:15,820 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-11 23:42:15,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 118 transitions, 828 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:15,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:15,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-11 23:42:15,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:16,036 INFO L130 PetriNetUnfolder]: 54/420 cut-off events. [2022-12-11 23:42:16,036 INFO L131 PetriNetUnfolder]: For 374/600 co-relation queries the response was YES. [2022-12-11 23:42:16,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 420 events. 54/420 cut-off events. For 374/600 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2529 event pairs, 0 based on Foata normal form. 19/436 useless extension candidates. Maximal degree in co-relation 1343. Up to 104 conditions per place. [2022-12-11 23:42:16,040 INFO L137 encePairwiseOnDemand]: 88/98 looper letters, 42 selfloop transitions, 12 changer transitions 34/147 dead transitions. [2022-12-11 23:42:16,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 147 transitions, 1338 flow [2022-12-11 23:42:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:16,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1023 transitions. [2022-12-11 23:42:16,042 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8029827315541601 [2022-12-11 23:42:16,045 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 28 predicate places. [2022-12-11 23:42:16,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 147 transitions, 1338 flow [2022-12-11 23:42:16,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 113 transitions, 875 flow [2022-12-11 23:42:16,048 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 113 transitions, 875 flow [2022-12-11 23:42:16,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:16,048 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:16,049 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:16,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:42:16,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:42:16,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:16,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1530864119, now seen corresponding path program 1 times [2022-12-11 23:42:16,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:16,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015090969] [2022-12-11 23:42:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:16,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:16,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:16,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015090969] [2022-12-11 23:42:16,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015090969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:16,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:16,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:42:16,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20591569] [2022-12-11 23:42:16,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:16,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:42:16,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:16,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:42:16,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:42:16,291 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-11 23:42:16,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 113 transitions, 875 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:16,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:16,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-11 23:42:16,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:16,720 INFO L130 PetriNetUnfolder]: 1561/3366 cut-off events. [2022-12-11 23:42:16,720 INFO L131 PetriNetUnfolder]: For 1159/1405 co-relation queries the response was YES. [2022-12-11 23:42:16,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7985 conditions, 3366 events. 1561/3366 cut-off events. For 1159/1405 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 26601 event pairs, 58 based on Foata normal form. 3/3158 useless extension candidates. Maximal degree in co-relation 7913. Up to 1126 conditions per place. [2022-12-11 23:42:16,800 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 43 selfloop transitions, 20 changer transitions 0/155 dead transitions. [2022-12-11 23:42:16,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 155 transitions, 1160 flow [2022-12-11 23:42:16,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:42:16,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:42:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 847 transitions. [2022-12-11 23:42:16,807 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8642857142857143 [2022-12-11 23:42:16,807 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 28 predicate places. [2022-12-11 23:42:16,807 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 155 transitions, 1160 flow [2022-12-11 23:42:16,823 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 155 transitions, 1160 flow [2022-12-11 23:42:16,824 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 155 transitions, 1160 flow [2022-12-11 23:42:16,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:16,824 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:16,825 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:16,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:42:16,825 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 2 more)] === [2022-12-11 23:42:16,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:16,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1699545941, now seen corresponding path program 1 times [2022-12-11 23:42:16,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:16,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588407553] [2022-12-11 23:42:16,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:16,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:16,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:16,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588407553] [2022-12-11 23:42:16,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588407553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:16,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:16,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:16,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921679028] [2022-12-11 23:42:16,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:16,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:16,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:16,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:16,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:16,996 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-11 23:42:16,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 155 transitions, 1160 flow. Second operand has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:16,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:16,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-11 23:42:16,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:17,570 INFO L130 PetriNetUnfolder]: 1605/3430 cut-off events. [2022-12-11 23:42:17,570 INFO L131 PetriNetUnfolder]: For 1351/2512 co-relation queries the response was YES. [2022-12-11 23:42:17,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9902 conditions, 3430 events. 1605/3430 cut-off events. For 1351/2512 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 28030 event pairs, 14 based on Foata normal form. 164/3382 useless extension candidates. Maximal degree in co-relation 9826. Up to 1263 conditions per place. [2022-12-11 23:42:17,598 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 68 selfloop transitions, 54 changer transitions 0/214 dead transitions. [2022-12-11 23:42:17,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 214 transitions, 1670 flow [2022-12-11 23:42:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:17,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:17,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1102 transitions. [2022-12-11 23:42:17,601 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8649921507064364 [2022-12-11 23:42:17,603 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 40 predicate places. [2022-12-11 23:42:17,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 214 transitions, 1670 flow [2022-12-11 23:42:17,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 214 transitions, 1670 flow [2022-12-11 23:42:17,616 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 214 transitions, 1670 flow [2022-12-11 23:42:17,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:17,617 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:17,617 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:17,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 23:42:17,618 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 2 more)] === [2022-12-11 23:42:17,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:17,618 INFO L85 PathProgramCache]: Analyzing trace with hash 963953524, now seen corresponding path program 1 times [2022-12-11 23:42:17,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:17,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972992485] [2022-12-11 23:42:17,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:17,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:17,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:17,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972992485] [2022-12-11 23:42:17,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972992485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:17,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:17,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:42:17,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143716917] [2022-12-11 23:42:17,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:17,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:42:17,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:17,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:42:17,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:42:17,785 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-11 23:42:17,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 214 transitions, 1670 flow. Second operand has 8 states, 8 states have (on average 80.625) internal successors, (645), 8 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:17,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:17,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-11 23:42:17,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:18,415 INFO L130 PetriNetUnfolder]: 1542/3367 cut-off events. [2022-12-11 23:42:18,415 INFO L131 PetriNetUnfolder]: For 1620/4092 co-relation queries the response was YES. [2022-12-11 23:42:18,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11614 conditions, 3367 events. 1542/3367 cut-off events. For 1620/4092 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 28957 event pairs, 0 based on Foata normal form. 291/3457 useless extension candidates. Maximal degree in co-relation 11534. Up to 1223 conditions per place. [2022-12-11 23:42:18,447 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 43 selfloop transitions, 106 changer transitions 50/287 dead transitions. [2022-12-11 23:42:18,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 287 transitions, 2474 flow [2022-12-11 23:42:18,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:42:18,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:42:18,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1356 transitions. [2022-12-11 23:42:18,450 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8647959183673469 [2022-12-11 23:42:18,451 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 55 predicate places. [2022-12-11 23:42:18,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 287 transitions, 2474 flow [2022-12-11 23:42:18,463 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 237 transitions, 2074 flow [2022-12-11 23:42:18,464 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 237 transitions, 2074 flow [2022-12-11 23:42:18,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.625) internal successors, (645), 8 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:18,464 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:18,465 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:18,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 23:42:18,465 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:42:18,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:18,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1963079827, now seen corresponding path program 1 times [2022-12-11 23:42:18,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:18,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909798823] [2022-12-11 23:42:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:18,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:18,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909798823] [2022-12-11 23:42:18,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909798823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:18,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:18,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:18,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951920002] [2022-12-11 23:42:18,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:18,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:18,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:18,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:18,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:18,620 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-11 23:42:18,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 237 transitions, 2074 flow. Second operand has 7 states, 7 states have (on average 81.14285714285714) internal successors, (568), 7 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:18,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:18,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-11 23:42:18,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:19,040 INFO L130 PetriNetUnfolder]: 1521/3463 cut-off events. [2022-12-11 23:42:19,041 INFO L131 PetriNetUnfolder]: For 2242/3769 co-relation queries the response was YES. [2022-12-11 23:42:19,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12054 conditions, 3463 events. 1521/3463 cut-off events. For 2242/3769 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 31407 event pairs, 16 based on Foata normal form. 20/3245 useless extension candidates. Maximal degree in co-relation 11969. Up to 1241 conditions per place. [2022-12-11 23:42:19,065 INFO L137 encePairwiseOnDemand]: 91/98 looper letters, 34 selfloop transitions, 5 changer transitions 31/244 dead transitions. [2022-12-11 23:42:19,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 244 transitions, 2272 flow [2022-12-11 23:42:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 23:42:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 23:42:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 661 transitions. [2022-12-11 23:42:19,067 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8431122448979592 [2022-12-11 23:42:19,067 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 62 predicate places. [2022-12-11 23:42:19,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 244 transitions, 2272 flow [2022-12-11 23:42:19,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 213 transitions, 1921 flow [2022-12-11 23:42:19,077 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 213 transitions, 1921 flow [2022-12-11 23:42:19,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.14285714285714) internal successors, (568), 7 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:19,078 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:19,078 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:19,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 23:42:19,078 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:42:19,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:19,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1891806779, now seen corresponding path program 2 times [2022-12-11 23:42:19,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:19,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352913051] [2022-12-11 23:42:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:19,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:19,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:19,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352913051] [2022-12-11 23:42:19,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352913051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:19,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:19,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 23:42:19,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668072779] [2022-12-11 23:42:19,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:19,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 23:42:19,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:19,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 23:42:19,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-11 23:42:19,255 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-11 23:42:19,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 213 transitions, 1921 flow. Second operand has 9 states, 9 states have (on average 80.55555555555556) internal successors, (725), 9 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:19,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:19,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-11 23:42:19,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:19,822 INFO L130 PetriNetUnfolder]: 998/2652 cut-off events. [2022-12-11 23:42:19,822 INFO L131 PetriNetUnfolder]: For 2477/4874 co-relation queries the response was YES. [2022-12-11 23:42:19,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10802 conditions, 2652 events. 998/2652 cut-off events. For 2477/4874 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 25336 event pairs, 0 based on Foata normal form. 236/2750 useless extension candidates. Maximal degree in co-relation 10713. Up to 883 conditions per place. [2022-12-11 23:42:19,837 INFO L137 encePairwiseOnDemand]: 89/98 looper letters, 0 selfloop transitions, 0 changer transitions 205/205 dead transitions. [2022-12-11 23:42:19,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 205 transitions, 2039 flow [2022-12-11 23:42:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 23:42:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 23:42:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1493 transitions. [2022-12-11 23:42:19,840 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8463718820861678 [2022-12-11 23:42:19,840 INFO L295 CegarLoopForPetriNet]: 92 programPoint places, 68 predicate places. [2022-12-11 23:42:19,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 205 transitions, 2039 flow [2022-12-11 23:42:19,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 23:42:19,844 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 23:42:19,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.55555555555556) internal successors, (725), 9 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:19,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-11 23:42:19,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-11 23:42:19,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-11 23:42:19,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-11 23:42:19,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-11 23:42:19,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 23:42:19,849 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:19,851 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:42:19,852 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:42:19,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:42:19 BasicIcfg [2022-12-11 23:42:19,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:42:19,856 INFO L158 Benchmark]: Toolchain (without parser) took 9357.08ms. Allocated memory was 188.7MB in the beginning and 395.3MB in the end (delta: 206.6MB). Free memory was 163.8MB in the beginning and 271.4MB in the end (delta: -107.5MB). Peak memory consumption was 100.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:19,856 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 188.7MB. Free memory is still 164.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:42:19,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.20ms. Allocated memory is still 188.7MB. Free memory was 163.8MB in the beginning and 140.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:19,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.67ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 138.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 23:42:19,857 INFO L158 Benchmark]: Boogie Preprocessor took 36.27ms. Allocated memory is still 188.7MB. Free memory was 138.2MB in the beginning and 136.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:19,857 INFO L158 Benchmark]: RCFGBuilder took 491.09ms. Allocated memory is still 188.7MB. Free memory was 136.6MB in the beginning and 121.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-11 23:42:19,858 INFO L158 Benchmark]: TraceAbstraction took 8265.86ms. Allocated memory was 188.7MB in the beginning and 395.3MB in the end (delta: 206.6MB). Free memory was 120.3MB in the beginning and 271.4MB in the end (delta: -151.0MB). Peak memory consumption was 57.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:19,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 188.7MB. Free memory is still 164.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 497.20ms. Allocated memory is still 188.7MB. Free memory was 163.8MB in the beginning and 140.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.67ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 138.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.27ms. Allocated memory is still 188.7MB. Free memory was 138.2MB in the beginning and 136.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 491.09ms. Allocated memory is still 188.7MB. Free memory was 136.6MB in the beginning and 121.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 8265.86ms. Allocated memory was 188.7MB in the beginning and 395.3MB in the end (delta: 206.6MB). Free memory was 120.3MB in the beginning and 271.4MB in the end (delta: -151.0MB). Peak memory consumption was 57.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 725 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 725 mSDsluCounter, 787 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 606 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 839 IncrementalHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 181 mSDtfsCounter, 839 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2074occurred in iteration=9, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 5361 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 692 NumberOfCodeBlocks, 692 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 681 ConstructedInterpolants, 0 QuantifiedInterpolants, 2911 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! [2022-12-11 23:42:19,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...