/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:30:48,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:30:48,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:30:48,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:30:48,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:30:48,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:30:48,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:30:48,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:30:48,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:30:48,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:30:48,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:30:48,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:30:48,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:30:48,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:30:48,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:30:48,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:30:48,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:30:48,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:30:48,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:30:48,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:30:48,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:30:48,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:30:48,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:30:48,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:30:48,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:30:48,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:30:48,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:30:48,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:30:48,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:30:48,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:30:48,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:30:48,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:30:48,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:30:48,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:30:48,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:30:48,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:30:48,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:30:48,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:30:48,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:30:48,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:30:48,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:30:48,373 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-SemanticLbe.epf [2022-12-12 18:30:48,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:30:48,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:30:48,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:30:48,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:30:48,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:30:48,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:30:48,399 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:30:48,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:30:48,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:30:48,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:30:48,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:30:48,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:30:48,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:30:48,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:30:48,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:30:48,400 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:30:48,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:30:48,400 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:30:48,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:30:48,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:30:48,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:30:48,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:30:48,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:30:48,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:30:48,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:30:48,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:30:48,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:30:48,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:30:48,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:30:48,402 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:30:48,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:30:48,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:30:48,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:30:48,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:30:48,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:30:48,711 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:30:48,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:30:49,701 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:30:49,942 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:30:49,942 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:30:49,965 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70cfc6cb2/f8c1879fb3f148ee83787aa605405ac4/FLAGeefa370b7 [2022-12-12 18:30:50,267 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70cfc6cb2/f8c1879fb3f148ee83787aa605405ac4 [2022-12-12 18:30:50,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:30:50,269 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:30:50,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:30:50,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:30:50,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:30:50,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1fdbdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50, skipping insertion in model container [2022-12-12 18:30:50,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:30:50,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:30:50,419 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/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 18:30:50,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:30:50,632 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:30:50,641 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/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 18:30:50,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,689 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:30:50,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:30:50,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:30:50,736 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:30:50,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50 WrapperNode [2022-12-12 18:30:50,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:30:50,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:30:50,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:30:50,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:30:50,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,776 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-12-12 18:30:50,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:30:50,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:30:50,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:30:50,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:30:50,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,812 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:30:50,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:30:50,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:30:50,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:30:50,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (1/1) ... [2022-12-12 18:30:50,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:30:50,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:30:50,854 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) [2022-12-12 18:30:50,873 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 [2022-12-12 18:30:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:30:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:30:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:30:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:30:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:30:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 18:30:50,886 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 18:30:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 18:30:50,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 18:30:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 18:30:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 18:30:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 18:30:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 18:30:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:30:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:30:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:30:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:30:50,889 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 18:30:51,056 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:30:51,058 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:30:51,304 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:30:51,417 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:30:51,417 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 18:30:51,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:30:51 BoogieIcfgContainer [2022-12-12 18:30:51,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:30:51,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:30:51,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:30:51,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:30:51,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:30:50" (1/3) ... [2022-12-12 18:30:51,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f216be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:30:51, skipping insertion in model container [2022-12-12 18:30:51,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:30:50" (2/3) ... [2022-12-12 18:30:51,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f216be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:30:51, skipping insertion in model container [2022-12-12 18:30:51,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:30:51" (3/3) ... [2022-12-12 18:30:51,427 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:30:51,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:30:51,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 18:30:51,440 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:30:51,485 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 18:30:51,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 286 flow [2022-12-12 18:30:51,574 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-12-12 18:30:51,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:30:51,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 18:30:51,583 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 133 transitions, 286 flow [2022-12-12 18:30:51,589 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 129 transitions, 270 flow [2022-12-12 18:30:51,594 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:30:51,608 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 129 transitions, 270 flow [2022-12-12 18:30:51,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 270 flow [2022-12-12 18:30:51,647 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-12-12 18:30:51,647 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:30:51,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 18:30:51,651 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 129 transitions, 270 flow [2022-12-12 18:30:51,651 INFO L226 LiptonReduction]: Number of co-enabled transitions 3286 [2022-12-12 18:30:56,690 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-12 18:30:56,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:30:56,717 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;@10c0f8a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:30:56,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 18:30:56,720 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-12 18:30:56,720 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:30:56,720 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:30:56,720 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 18:30:56,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:30:56,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:30:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash 593742, now seen corresponding path program 1 times [2022-12-12 18:30:56,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:30:56,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785535341] [2022-12-12 18:30:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:30:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:30:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:30:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:30:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:30:56,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785535341] [2022-12-12 18:30:56,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785535341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:30:56,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:30:56,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:30:56,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652836135] [2022-12-12 18:30:56,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:30:56,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:30:56,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:30:56,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:30:56,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:30:56,984 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 85 [2022-12-12 18:30:56,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 85 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-12-12 18:30:56,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:30:56,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 85 [2022-12-12 18:30:56,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:31:04,114 INFO L130 PetriNetUnfolder]: 66790/93710 cut-off events. [2022-12-12 18:31:04,114 INFO L131 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-12-12 18:31:04,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181999 conditions, 93710 events. 66790/93710 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 4472. Compared 679413 event pairs, 37024 based on Foata normal form. 0/59628 useless extension candidates. Maximal degree in co-relation 181987. Up to 73765 conditions per place. [2022-12-12 18:31:04,403 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 48 selfloop transitions, 2 changer transitions 71/138 dead transitions. [2022-12-12 18:31:04,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 138 transitions, 537 flow [2022-12-12 18:31:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:31:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:31:04,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2022-12-12 18:31:04,411 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7098039215686275 [2022-12-12 18:31:04,414 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -1 predicate places. [2022-12-12 18:31:04,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 138 transitions, 537 flow [2022-12-12 18:31:04,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 67 transitions, 255 flow [2022-12-12 18:31:04,501 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 67 transitions, 255 flow [2022-12-12 18:31:04,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-12-12 18:31:04,501 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:31:04,501 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:31:04,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:31:04,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:31:04,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:31:04,507 INFO L85 PathProgramCache]: Analyzing trace with hash 26233399, now seen corresponding path program 1 times [2022-12-12 18:31:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:31:04,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128573111] [2022-12-12 18:31:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:31:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:31:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:31:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:31:04,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:31:04,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128573111] [2022-12-12 18:31:04,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128573111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:31:04,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:31:04,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:31:04,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603761099] [2022-12-12 18:31:04,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:31:04,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:31:04,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:31:04,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:31:04,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:31:04,768 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 85 [2022-12-12 18:31:04,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 67 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:31:04,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:31:04,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 85 [2022-12-12 18:31:04,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:31:09,226 INFO L130 PetriNetUnfolder]: 46975/65551 cut-off events. [2022-12-12 18:31:09,227 INFO L131 PetriNetUnfolder]: For 9359/9359 co-relation queries the response was YES. [2022-12-12 18:31:09,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178022 conditions, 65551 events. 46975/65551 cut-off events. For 9359/9359 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 424165 event pairs, 12877 based on Foata normal form. 1184/56701 useless extension candidates. Maximal degree in co-relation 178007. Up to 45043 conditions per place. [2022-12-12 18:31:09,547 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 83 selfloop transitions, 9 changer transitions 2/105 dead transitions. [2022-12-12 18:31:09,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 105 transitions, 595 flow [2022-12-12 18:31:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:31:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:31:09,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2022-12-12 18:31:09,552 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39215686274509803 [2022-12-12 18:31:09,552 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -35 predicate places. [2022-12-12 18:31:09,553 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 105 transitions, 595 flow [2022-12-12 18:31:09,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 103 transitions, 587 flow [2022-12-12 18:31:09,729 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 103 transitions, 587 flow [2022-12-12 18:31:09,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:31:09,730 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:31:09,730 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:31:09,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:31:09,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:31:09,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:31:09,731 INFO L85 PathProgramCache]: Analyzing trace with hash 813232728, now seen corresponding path program 1 times [2022-12-12 18:31:09,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:31:09,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943273157] [2022-12-12 18:31:09,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:31:09,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:31:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:31:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:31:10,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:31:10,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943273157] [2022-12-12 18:31:10,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943273157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:31:10,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:31:10,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:31:10,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113757500] [2022-12-12 18:31:10,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:31:10,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:31:10,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:31:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:31:10,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:31:10,043 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 85 [2022-12-12 18:31:10,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 103 transitions, 587 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-12 18:31:10,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:31:10,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 85 [2022-12-12 18:31:10,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:31:13,442 INFO L130 PetriNetUnfolder]: 34733/48905 cut-off events. [2022-12-12 18:31:13,442 INFO L131 PetriNetUnfolder]: For 6473/6473 co-relation queries the response was YES. [2022-12-12 18:31:13,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181791 conditions, 48905 events. 34733/48905 cut-off events. For 6473/6473 co-relation queries the response was YES. Maximal size of possible extension queue 1499. Compared 305714 event pairs, 1979 based on Foata normal form. 480/41685 useless extension candidates. Maximal degree in co-relation 181773. Up to 35661 conditions per place. [2022-12-12 18:31:13,761 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 127 selfloop transitions, 9 changer transitions 0/147 dead transitions. [2022-12-12 18:31:13,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 147 transitions, 1109 flow [2022-12-12 18:31:13,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:31:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:31:13,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2022-12-12 18:31:13,763 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35294117647058826 [2022-12-12 18:31:13,764 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -33 predicate places. [2022-12-12 18:31:13,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 147 transitions, 1109 flow [2022-12-12 18:31:13,949 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 147 transitions, 1109 flow [2022-12-12 18:31:13,949 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 147 transitions, 1109 flow [2022-12-12 18:31:13,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-12 18:31:13,949 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:31:13,949 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:31:13,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 18:31:13,950 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:31:13,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:31:13,950 INFO L85 PathProgramCache]: Analyzing trace with hash -670456064, now seen corresponding path program 1 times [2022-12-12 18:31:13,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:31:13,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724275059] [2022-12-12 18:31:13,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:31:13,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:31:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:31:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:31:14,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:31:14,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724275059] [2022-12-12 18:31:14,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724275059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:31:14,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:31:14,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:31:14,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754684918] [2022-12-12 18:31:14,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:31:14,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:31:14,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:31:14,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:31:14,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:31:14,054 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 85 [2022-12-12 18:31:14,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 147 transitions, 1109 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-12 18:31:14,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:31:14,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 85 [2022-12-12 18:31:14,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:31:17,653 INFO L130 PetriNetUnfolder]: 34140/48067 cut-off events. [2022-12-12 18:31:17,653 INFO L131 PetriNetUnfolder]: For 6234/6234 co-relation queries the response was YES. [2022-12-12 18:31:17,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224391 conditions, 48067 events. 34140/48067 cut-off events. For 6234/6234 co-relation queries the response was YES. Maximal size of possible extension queue 1464. Compared 300822 event pairs, 1923 based on Foata normal form. 70/40544 useless extension candidates. Maximal degree in co-relation 224370. Up to 35071 conditions per place. [2022-12-12 18:31:17,951 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 173 selfloop transitions, 22 changer transitions 0/206 dead transitions. [2022-12-12 18:31:17,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 206 transitions, 1970 flow [2022-12-12 18:31:17,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:31:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:31:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2022-12-12 18:31:17,953 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.38529411764705884 [2022-12-12 18:31:17,954 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -30 predicate places. [2022-12-12 18:31:17,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 206 transitions, 1970 flow [2022-12-12 18:31:18,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 206 transitions, 1970 flow [2022-12-12 18:31:18,166 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 206 transitions, 1970 flow [2022-12-12 18:31:18,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-12 18:31:18,166 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:31:18,166 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:31:18,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 18:31:18,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:31:18,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:31:18,166 INFO L85 PathProgramCache]: Analyzing trace with hash -30205181, now seen corresponding path program 1 times [2022-12-12 18:31:18,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:31:18,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809741450] [2022-12-12 18:31:18,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:31:18,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:31:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:31:18,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:31:18,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:31:18,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809741450] [2022-12-12 18:31:18,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809741450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:31:18,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:31:18,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:31:18,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014570494] [2022-12-12 18:31:18,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:31:18,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:31:18,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:31:18,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:31:18,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:31:18,271 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 85 [2022-12-12 18:31:18,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 206 transitions, 1970 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-12-12 18:31:18,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:31:18,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 85 [2022-12-12 18:31:18,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:31:21,979 INFO L130 PetriNetUnfolder]: 32498/45835 cut-off events. [2022-12-12 18:31:21,979 INFO L131 PetriNetUnfolder]: For 6145/6145 co-relation queries the response was YES. [2022-12-12 18:31:22,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257421 conditions, 45835 events. 32498/45835 cut-off events. For 6145/6145 co-relation queries the response was YES. Maximal size of possible extension queue 1371. Compared 284213 event pairs, 691 based on Foata normal form. 340/38900 useless extension candidates. Maximal degree in co-relation 257397. Up to 33454 conditions per place. [2022-12-12 18:31:22,279 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 268 selfloop transitions, 19 changer transitions 0/298 dead transitions. [2022-12-12 18:31:22,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 298 transitions, 3455 flow [2022-12-12 18:31:22,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:31:22,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:31:22,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2022-12-12 18:31:22,281 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36470588235294116 [2022-12-12 18:31:22,282 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -27 predicate places. [2022-12-12 18:31:22,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 298 transitions, 3455 flow [2022-12-12 18:31:22,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 298 transitions, 3455 flow [2022-12-12 18:31:22,636 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 298 transitions, 3455 flow [2022-12-12 18:31:22,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-12-12 18:31:22,636 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:31:22,636 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:31:22,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 18:31:22,636 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:31:22,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:31:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash 415563204, now seen corresponding path program 1 times [2022-12-12 18:31:22,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:31:22,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278616839] [2022-12-12 18:31:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:31:22,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:31:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:31:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:31:22,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:31:22,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278616839] [2022-12-12 18:31:22,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278616839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:31:22,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:31:22,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:31:22,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940622814] [2022-12-12 18:31:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:31:22,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:31:22,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:31:22,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:31:22,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:31:22,772 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 85 [2022-12-12 18:31:22,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 298 transitions, 3455 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-12-12 18:31:22,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:31:22,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 85 [2022-12-12 18:31:22,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:31:29,146 INFO L130 PetriNetUnfolder]: 52464/71395 cut-off events. [2022-12-12 18:31:29,146 INFO L131 PetriNetUnfolder]: For 114031/116751 co-relation queries the response was YES. [2022-12-12 18:31:29,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438141 conditions, 71395 events. 52464/71395 cut-off events. For 114031/116751 co-relation queries the response was YES. Maximal size of possible extension queue 2159. Compared 432831 event pairs, 5392 based on Foata normal form. 890/61971 useless extension candidates. Maximal degree in co-relation 438114. Up to 60706 conditions per place. [2022-12-12 18:31:29,647 INFO L137 encePairwiseOnDemand]: 71/85 looper letters, 345 selfloop transitions, 85 changer transitions 0/471 dead transitions. [2022-12-12 18:31:29,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 471 transitions, 6387 flow [2022-12-12 18:31:29,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:31:29,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:31:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2022-12-12 18:31:29,648 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4 [2022-12-12 18:31:29,649 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -25 predicate places. [2022-12-12 18:31:29,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 471 transitions, 6387 flow [2022-12-12 18:31:29,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 471 transitions, 6387 flow [2022-12-12 18:31:29,955 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 471 transitions, 6387 flow [2022-12-12 18:31:29,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-12-12 18:31:29,955 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:31:29,955 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:31:29,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 18:31:29,955 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:31:29,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:31:29,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1225396820, now seen corresponding path program 1 times [2022-12-12 18:31:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:31:29,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713455770] [2022-12-12 18:31:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:31:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:31:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:31:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:31:30,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:31:30,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713455770] [2022-12-12 18:31:30,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713455770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:31:30,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:31:30,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:31:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030251000] [2022-12-12 18:31:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:31:30,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:31:30,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:31:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:31:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:31:30,038 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 85 [2022-12-12 18:31:30,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 471 transitions, 6387 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-12-12 18:31:30,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:31:30,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 85 [2022-12-12 18:31:30,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:31:39,219 INFO L130 PetriNetUnfolder]: 70025/95645 cut-off events. [2022-12-12 18:31:39,219 INFO L131 PetriNetUnfolder]: For 236021/240105 co-relation queries the response was YES. [2022-12-12 18:31:39,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656807 conditions, 95645 events. 70025/95645 cut-off events. For 236021/240105 co-relation queries the response was YES. Maximal size of possible extension queue 2848. Compared 605734 event pairs, 8183 based on Foata normal form. 1859/83119 useless extension candidates. Maximal degree in co-relation 656777. Up to 81929 conditions per place. [2022-12-12 18:31:39,822 INFO L137 encePairwiseOnDemand]: 82/85 looper letters, 452 selfloop transitions, 21 changer transitions 64/575 dead transitions. [2022-12-12 18:31:39,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 575 transitions, 8929 flow [2022-12-12 18:31:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:31:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:31:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2022-12-12 18:31:39,823 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4 [2022-12-12 18:31:39,824 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -23 predicate places. [2022-12-12 18:31:39,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 575 transitions, 8929 flow [2022-12-12 18:31:40,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 511 transitions, 7915 flow [2022-12-12 18:31:40,244 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 511 transitions, 7915 flow [2022-12-12 18:31:40,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-12-12 18:31:40,244 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:31:40,244 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:31:40,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 18:31:40,244 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:31:40,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:31:40,245 INFO L85 PathProgramCache]: Analyzing trace with hash -820350989, now seen corresponding path program 1 times [2022-12-12 18:31:40,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:31:40,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028833512] [2022-12-12 18:31:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:31:40,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:31:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:31:40,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:31:40,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:31:40,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028833512] [2022-12-12 18:31:40,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028833512] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:31:40,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:31:40,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:31:40,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980198699] [2022-12-12 18:31:40,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:31:40,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:31:40,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:31:40,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:31:40,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:31:40,334 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 85 [2022-12-12 18:31:40,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 511 transitions, 7915 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-12-12 18:31:40,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:31:40,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 85 [2022-12-12 18:31:40,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:31:57,815 INFO L130 PetriNetUnfolder]: 106190/147049 cut-off events. [2022-12-12 18:31:57,815 INFO L131 PetriNetUnfolder]: For 461718/466657 co-relation queries the response was YES. [2022-12-12 18:31:58,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1120327 conditions, 147049 events. 106190/147049 cut-off events. For 461718/466657 co-relation queries the response was YES. Maximal size of possible extension queue 4894. Compared 1026893 event pairs, 14057 based on Foata normal form. 1923/125812 useless extension candidates. Maximal degree in co-relation 1120294. Up to 129022 conditions per place.