/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/weaver/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:48:21,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:48:21,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:48:21,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:48:21,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:48:21,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:48:21,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:48:21,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:48:21,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:48:21,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:48:21,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:48:21,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:48:21,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:48:21,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:48:21,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:48:21,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:48:21,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:48:21,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:48:21,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:48:21,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:48:21,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:48:21,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:48:21,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:48:21,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:48:21,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:48:21,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:48:21,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:48:21,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:48:21,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:48:21,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 19:48:21,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 19:48:21,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 19:48:21,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 19:48:21,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 19:48:21,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 19:48:21,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 19:48:21,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 19:48:21,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 19:48:21,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:48:21,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:48:21,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:48:21,618 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 19:48:21,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:48:21,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:48:21,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:48:21,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:48:21,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:48:21,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:48:21,649 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:48:21,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:48:21,649 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:48:21,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:48:21,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:48:21,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:48:21,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:48:21,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:48:21,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:48:21,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:48:21,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:48:21,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:48:21,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:48:21,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:48:21,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:48:21,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:48:21,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:48:21,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:48:21,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:48:21,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:48:21,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:48:21,942 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:48:21,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-12-12 19:48:23,022 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:48:23,223 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:48:23,224 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-12-12 19:48:23,249 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/850c373a8/9c207fb08fca4313805edc877c82ccea/FLAG0ad64f31d [2022-12-12 19:48:23,261 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/850c373a8/9c207fb08fca4313805edc877c82ccea [2022-12-12 19:48:23,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:48:23,265 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:48:23,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:48:23,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:48:23,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:48:23,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b4c4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23, skipping insertion in model container [2022-12-12 19:48:23,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:48:23,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:48:23,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-12-12 19:48:23,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:48:23,433 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:48:23,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:23,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:23,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-12-12 19:48:23,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:48:23,490 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:48:23,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23 WrapperNode [2022-12-12 19:48:23,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:48:23,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:48:23,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:48:23,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:48:23,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,539 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-12-12 19:48:23,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:48:23,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:48:23,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:48:23,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:48:23,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,568 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:48:23,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:48:23,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:48:23,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:48:23,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (1/1) ... [2022-12-12 19:48:23,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:48:23,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:48:23,624 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 19:48:23,639 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 19:48:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:48:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 19:48:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 19:48:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 19:48:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 19:48:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 19:48:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 19:48:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-12 19:48:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-12 19:48:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:48:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:48:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:48:23,669 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 19:48:23,754 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:48:23,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:48:23,966 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:48:24,090 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:48:24,090 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:48:24,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:48:24 BoogieIcfgContainer [2022-12-12 19:48:24,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:48:24,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:48:24,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:48:24,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:48:24,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:48:23" (1/3) ... [2022-12-12 19:48:24,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1875e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:48:24, skipping insertion in model container [2022-12-12 19:48:24,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:23" (2/3) ... [2022-12-12 19:48:24,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1875e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:48:24, skipping insertion in model container [2022-12-12 19:48:24,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:48:24" (3/3) ... [2022-12-12 19:48:24,099 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-12-12 19:48:24,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:48:24,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:48:24,113 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:48:24,209 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-12 19:48:24,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 158 transitions, 356 flow [2022-12-12 19:48:24,336 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2022-12-12 19:48:24,336 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-12 19:48:24,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 153 events. 2/153 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 115. Up to 2 conditions per place. [2022-12-12 19:48:24,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 158 transitions, 356 flow [2022-12-12 19:48:24,346 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 139 transitions, 308 flow [2022-12-12 19:48:24,348 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:48:24,366 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 139 transitions, 308 flow [2022-12-12 19:48:24,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 139 transitions, 308 flow [2022-12-12 19:48:24,414 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-12-12 19:48:24,414 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-12 19:48:24,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 139 events. 2/139 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 115. Up to 2 conditions per place. [2022-12-12 19:48:24,417 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 139 transitions, 308 flow [2022-12-12 19:48:24,417 INFO L226 LiptonReduction]: Number of co-enabled transitions 2082 [2022-12-12 19:48:29,937 INFO L241 LiptonReduction]: Total number of compositions: 107 [2022-12-12 19:48:29,949 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:48:29,954 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;@15914fb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:48:29,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-12 19:48:29,964 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-12-12 19:48:29,964 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-12 19:48:29,965 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:29,965 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] [2022-12-12 19:48:29,966 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 3 more)] === [2022-12-12 19:48:29,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:29,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1497497654, now seen corresponding path program 1 times [2022-12-12 19:48:29,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:29,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594041791] [2022-12-12 19:48:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:29,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:31,200 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 19:48:31,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:31,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594041791] [2022-12-12 19:48:31,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594041791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:31,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:31,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:48:31,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307967315] [2022-12-12 19:48:31,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:31,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:48:31,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:31,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:48:31,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:48:31,226 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:31,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 32 transitions, 94 flow. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:31,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:31,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:31,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:32,080 INFO L130 PetriNetUnfolder]: 4951/6871 cut-off events. [2022-12-12 19:48:32,081 INFO L131 PetriNetUnfolder]: For 594/594 co-relation queries the response was YES. [2022-12-12 19:48:32,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14429 conditions, 6871 events. 4951/6871 cut-off events. For 594/594 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 30986 event pairs, 2366 based on Foata normal form. 1/6872 useless extension candidates. Maximal degree in co-relation 14000. Up to 4566 conditions per place. [2022-12-12 19:48:32,112 INFO L137 encePairwiseOnDemand]: 19/32 looper letters, 70 selfloop transitions, 16 changer transitions 22/108 dead transitions. [2022-12-12 19:48:32,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 108 transitions, 513 flow [2022-12-12 19:48:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 19:48:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 19:48:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 109 transitions. [2022-12-12 19:48:32,123 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.48660714285714285 [2022-12-12 19:48:32,126 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2022-12-12 19:48:32,126 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 108 transitions, 513 flow [2022-12-12 19:48:32,144 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 86 transitions, 404 flow [2022-12-12 19:48:32,146 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 86 transitions, 404 flow [2022-12-12 19:48:32,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:32,146 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:32,146 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] [2022-12-12 19:48:32,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:48:32,146 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 3 more)] === [2022-12-12 19:48:32,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:32,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1965521226, now seen corresponding path program 2 times [2022-12-12 19:48:32,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:32,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973199725] [2022-12-12 19:48:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:32,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:32,655 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 19:48:32,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:32,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973199725] [2022-12-12 19:48:32,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973199725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:32,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:32,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 19:48:32,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444587953] [2022-12-12 19:48:32,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:32,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:48:32,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:32,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:48:32,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:48:32,657 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:32,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 86 transitions, 404 flow. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:32,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:32,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:32,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:33,279 INFO L130 PetriNetUnfolder]: 5549/7757 cut-off events. [2022-12-12 19:48:33,279 INFO L131 PetriNetUnfolder]: For 758/758 co-relation queries the response was YES. [2022-12-12 19:48:33,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24051 conditions, 7757 events. 5549/7757 cut-off events. For 758/758 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 37285 event pairs, 742 based on Foata normal form. 1/7758 useless extension candidates. Maximal degree in co-relation 23418. Up to 6369 conditions per place. [2022-12-12 19:48:33,318 INFO L137 encePairwiseOnDemand]: 24/32 looper letters, 125 selfloop transitions, 25 changer transitions 13/163 dead transitions. [2022-12-12 19:48:33,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 163 transitions, 1095 flow [2022-12-12 19:48:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:48:33,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:48:33,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2022-12-12 19:48:33,322 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5729166666666666 [2022-12-12 19:48:33,322 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2022-12-12 19:48:33,322 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 163 transitions, 1095 flow [2022-12-12 19:48:33,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 150 transitions, 999 flow [2022-12-12 19:48:33,343 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 150 transitions, 999 flow [2022-12-12 19:48:33,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:33,343 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:33,343 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] [2022-12-12 19:48:33,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 19:48:33,344 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 3 more)] === [2022-12-12 19:48:33,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:33,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1427135426, now seen corresponding path program 3 times [2022-12-12 19:48:33,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:33,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042507575] [2022-12-12 19:48:33,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:33,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:33,530 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 19:48:33,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:33,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042507575] [2022-12-12 19:48:33,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042507575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:33,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:33,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 19:48:33,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753928505] [2022-12-12 19:48:33,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:33,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:48:33,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:33,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:48:33,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:48:33,532 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:33,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 150 transitions, 999 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:33,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:33,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:33,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:34,147 INFO L130 PetriNetUnfolder]: 4543/6366 cut-off events. [2022-12-12 19:48:34,148 INFO L131 PetriNetUnfolder]: For 419/419 co-relation queries the response was YES. [2022-12-12 19:48:34,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26084 conditions, 6366 events. 4543/6366 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 30222 event pairs, 444 based on Foata normal form. 60/6426 useless extension candidates. Maximal degree in co-relation 25548. Up to 5996 conditions per place. [2022-12-12 19:48:34,186 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 186 selfloop transitions, 20 changer transitions 0/206 dead transitions. [2022-12-12 19:48:34,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 206 transitions, 1783 flow [2022-12-12 19:48:34,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 19:48:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 19:48:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2022-12-12 19:48:34,190 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.475 [2022-12-12 19:48:34,191 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 14 predicate places. [2022-12-12 19:48:34,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 206 transitions, 1783 flow [2022-12-12 19:48:34,216 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 206 transitions, 1783 flow [2022-12-12 19:48:34,216 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 206 transitions, 1783 flow [2022-12-12 19:48:34,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:34,217 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:34,217 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] [2022-12-12 19:48:34,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 19:48:34,217 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 3 more)] === [2022-12-12 19:48:34,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash 65350092, now seen corresponding path program 4 times [2022-12-12 19:48:34,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:34,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744830576] [2022-12-12 19:48:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:34,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:34,409 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 19:48:34,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:34,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744830576] [2022-12-12 19:48:34,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744830576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:34,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:34,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 19:48:34,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101016816] [2022-12-12 19:48:34,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:34,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:48:34,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:34,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:48:34,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:48:34,411 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:34,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 206 transitions, 1783 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:34,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:34,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:34,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:34,917 INFO L130 PetriNetUnfolder]: 4459/6270 cut-off events. [2022-12-12 19:48:34,917 INFO L131 PetriNetUnfolder]: For 407/407 co-relation queries the response was YES. [2022-12-12 19:48:34,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31963 conditions, 6270 events. 4459/6270 cut-off events. For 407/407 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 30021 event pairs, 402 based on Foata normal form. 56/6326 useless extension candidates. Maximal degree in co-relation 31306. Up to 5900 conditions per place. [2022-12-12 19:48:34,950 INFO L137 encePairwiseOnDemand]: 23/32 looper letters, 216 selfloop transitions, 26 changer transitions 0/242 dead transitions. [2022-12-12 19:48:34,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 242 transitions, 2579 flow [2022-12-12 19:48:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 19:48:34,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 19:48:34,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2022-12-12 19:48:34,952 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.45 [2022-12-12 19:48:34,952 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2022-12-12 19:48:34,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 242 transitions, 2579 flow [2022-12-12 19:48:34,981 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 242 transitions, 2579 flow [2022-12-12 19:48:34,982 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 242 transitions, 2579 flow [2022-12-12 19:48:34,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:34,982 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:34,982 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] [2022-12-12 19:48:34,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 19:48:34,982 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 3 more)] === [2022-12-12 19:48:34,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:34,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2031609760, now seen corresponding path program 5 times [2022-12-12 19:48:34,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:34,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696979570] [2022-12-12 19:48:34,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:34,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:35,195 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 19:48:35,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:35,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696979570] [2022-12-12 19:48:35,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696979570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:35,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:35,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:48:35,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118345659] [2022-12-12 19:48:35,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:35,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:48:35,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:35,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:48:35,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:48:35,197 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:35,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 242 transitions, 2579 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:35,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:35,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:35,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:36,083 INFO L130 PetriNetUnfolder]: 5130/7243 cut-off events. [2022-12-12 19:48:36,083 INFO L131 PetriNetUnfolder]: For 429/429 co-relation queries the response was YES. [2022-12-12 19:48:36,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44110 conditions, 7243 events. 5130/7243 cut-off events. For 429/429 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 35790 event pairs, 392 based on Foata normal form. 130/7373 useless extension candidates. Maximal degree in co-relation 43332. Up to 6739 conditions per place. [2022-12-12 19:48:36,126 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 338 selfloop transitions, 215 changer transitions 0/553 dead transitions. [2022-12-12 19:48:36,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 553 transitions, 6876 flow [2022-12-12 19:48:36,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 19:48:36,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 19:48:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 193 transitions. [2022-12-12 19:48:36,127 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3350694444444444 [2022-12-12 19:48:36,128 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 35 predicate places. [2022-12-12 19:48:36,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 553 transitions, 6876 flow [2022-12-12 19:48:36,167 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 553 transitions, 6876 flow [2022-12-12 19:48:36,168 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 553 transitions, 6876 flow [2022-12-12 19:48:36,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:36,168 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:36,168 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] [2022-12-12 19:48:36,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 19:48:36,168 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 3 more)] === [2022-12-12 19:48:36,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:36,169 INFO L85 PathProgramCache]: Analyzing trace with hash -304416926, now seen corresponding path program 6 times [2022-12-12 19:48:36,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:36,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336590246] [2022-12-12 19:48:36,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:36,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:36,341 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 19:48:36,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:36,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336590246] [2022-12-12 19:48:36,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336590246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:36,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:36,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:48:36,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862868799] [2022-12-12 19:48:36,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:36,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:48:36,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:36,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:48:36,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:48:36,345 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:36,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 553 transitions, 6876 flow. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:36,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:36,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:36,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:37,899 INFO L130 PetriNetUnfolder]: 9040/12885 cut-off events. [2022-12-12 19:48:37,900 INFO L131 PetriNetUnfolder]: For 807/807 co-relation queries the response was YES. [2022-12-12 19:48:37,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91238 conditions, 12885 events. 9040/12885 cut-off events. For 807/807 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 71022 event pairs, 894 based on Foata normal form. 106/12991 useless extension candidates. Maximal degree in co-relation 90034. Up to 12313 conditions per place. [2022-12-12 19:48:37,979 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 544 selfloop transitions, 399 changer transitions 1/944 dead transitions. [2022-12-12 19:48:37,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 944 transitions, 13621 flow [2022-12-12 19:48:37,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 19:48:37,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 19:48:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 176 transitions. [2022-12-12 19:48:37,980 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-12 19:48:37,981 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 45 predicate places. [2022-12-12 19:48:37,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 944 transitions, 13621 flow [2022-12-12 19:48:38,049 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 943 transitions, 13607 flow [2022-12-12 19:48:38,050 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 943 transitions, 13607 flow [2022-12-12 19:48:38,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:38,050 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:38,050 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] [2022-12-12 19:48:38,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 19:48:38,050 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 3 more)] === [2022-12-12 19:48:38,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:38,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1292324068, now seen corresponding path program 7 times [2022-12-12 19:48:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:38,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103979150] [2022-12-12 19:48:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:38,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:38,276 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 19:48:38,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:38,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103979150] [2022-12-12 19:48:38,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103979150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:38,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:38,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:48:38,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327910633] [2022-12-12 19:48:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:38,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:48:38,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:48:38,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:48:38,277 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:38,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 943 transitions, 13607 flow. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:38,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:38,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:38,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:40,081 INFO L130 PetriNetUnfolder]: 9140/13045 cut-off events. [2022-12-12 19:48:40,082 INFO L131 PetriNetUnfolder]: For 799/799 co-relation queries the response was YES. [2022-12-12 19:48:40,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105404 conditions, 13045 events. 9140/13045 cut-off events. For 799/799 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 72309 event pairs, 870 based on Foata normal form. 76/13121 useless extension candidates. Maximal degree in co-relation 104037. Up to 12433 conditions per place. [2022-12-12 19:48:40,164 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 761 selfloop transitions, 194 changer transitions 56/1011 dead transitions. [2022-12-12 19:48:40,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 1011 transitions, 16581 flow [2022-12-12 19:48:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 19:48:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 19:48:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 149 transitions. [2022-12-12 19:48:40,166 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42329545454545453 [2022-12-12 19:48:40,166 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 55 predicate places. [2022-12-12 19:48:40,166 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 1011 transitions, 16581 flow [2022-12-12 19:48:40,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 955 transitions, 15649 flow [2022-12-12 19:48:40,242 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 955 transitions, 15649 flow [2022-12-12 19:48:40,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:40,242 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:40,242 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] [2022-12-12 19:48:40,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 19:48:40,243 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 3 more)] === [2022-12-12 19:48:40,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:40,243 INFO L85 PathProgramCache]: Analyzing trace with hash -2072758574, now seen corresponding path program 8 times [2022-12-12 19:48:40,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:40,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787421481] [2022-12-12 19:48:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:40,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:40,494 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 19:48:40,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:40,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787421481] [2022-12-12 19:48:40,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787421481] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:40,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:40,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:48:40,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156227599] [2022-12-12 19:48:40,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:40,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:48:40,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:40,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:48:40,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:48:40,497 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:40,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 955 transitions, 15649 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:40,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:40,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:40,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:42,640 INFO L130 PetriNetUnfolder]: 9341/13322 cut-off events. [2022-12-12 19:48:42,640 INFO L131 PetriNetUnfolder]: For 810/810 co-relation queries the response was YES. [2022-12-12 19:48:42,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120945 conditions, 13322 events. 9341/13322 cut-off events. For 810/810 co-relation queries the response was YES. Maximal size of possible extension queue 669. Compared 74030 event pairs, 930 based on Foata normal form. 156/13478 useless extension candidates. Maximal degree in co-relation 119415. Up to 12754 conditions per place. [2022-12-12 19:48:42,725 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 816 selfloop transitions, 187 changer transitions 60/1063 dead transitions. [2022-12-12 19:48:42,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 1063 transitions, 19524 flow [2022-12-12 19:48:42,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 19:48:42,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 19:48:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 126 transitions. [2022-12-12 19:48:42,727 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4375 [2022-12-12 19:48:42,729 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 63 predicate places. [2022-12-12 19:48:42,730 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 1063 transitions, 19524 flow [2022-12-12 19:48:42,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 1003 transitions, 18420 flow [2022-12-12 19:48:42,806 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 1003 transitions, 18420 flow [2022-12-12 19:48:42,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:42,806 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:42,807 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] [2022-12-12 19:48:42,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 19:48:42,807 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 3 more)] === [2022-12-12 19:48:42,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:42,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1979461608, now seen corresponding path program 9 times [2022-12-12 19:48:42,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:42,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693459870] [2022-12-12 19:48:42,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:42,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:42,953 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 19:48:42,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:42,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693459870] [2022-12-12 19:48:42,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693459870] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:42,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:42,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:48:42,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731959018] [2022-12-12 19:48:42,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:42,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:48:42,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:42,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:48:42,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:48:42,955 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:42,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 1003 transitions, 18420 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:42,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:42,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:42,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:45,564 INFO L130 PetriNetUnfolder]: 12574/18083 cut-off events. [2022-12-12 19:48:45,564 INFO L131 PetriNetUnfolder]: For 1147/1147 co-relation queries the response was YES. [2022-12-12 19:48:45,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182207 conditions, 18083 events. 12574/18083 cut-off events. For 1147/1147 co-relation queries the response was YES. Maximal size of possible extension queue 957. Compared 107143 event pairs, 944 based on Foata normal form. 280/18363 useless extension candidates. Maximal degree in co-relation 180147. Up to 17595 conditions per place. [2022-12-12 19:48:45,680 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 838 selfloop transitions, 439 changer transitions 74/1351 dead transitions. [2022-12-12 19:48:45,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 1351 transitions, 27503 flow [2022-12-12 19:48:45,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 19:48:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 19:48:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2022-12-12 19:48:45,682 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-12 19:48:45,682 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 71 predicate places. [2022-12-12 19:48:45,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 1351 transitions, 27503 flow [2022-12-12 19:48:45,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 1277 transitions, 25993 flow [2022-12-12 19:48:45,784 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 1277 transitions, 25993 flow [2022-12-12 19:48:45,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:45,784 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:45,784 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] [2022-12-12 19:48:45,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 19:48:45,784 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 3 more)] === [2022-12-12 19:48:45,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:45,784 INFO L85 PathProgramCache]: Analyzing trace with hash 81402584, now seen corresponding path program 10 times [2022-12-12 19:48:45,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:45,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293840452] [2022-12-12 19:48:45,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:45,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:45,920 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 19:48:45,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:45,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293840452] [2022-12-12 19:48:45,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293840452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:45,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:45,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 19:48:45,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725464602] [2022-12-12 19:48:45,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:45,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:48:45,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:45,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:48:45,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:48:45,922 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:45,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 1277 transitions, 25993 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:45,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:45,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:45,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:49,211 INFO L130 PetriNetUnfolder]: 12106/17437 cut-off events. [2022-12-12 19:48:49,211 INFO L131 PetriNetUnfolder]: For 1078/1078 co-relation queries the response was YES. [2022-12-12 19:48:49,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193142 conditions, 17437 events. 12106/17437 cut-off events. For 1078/1078 co-relation queries the response was YES. Maximal size of possible extension queue 905. Compared 103079 event pairs, 888 based on Foata normal form. 188/17625 useless extension candidates. Maximal degree in co-relation 190997. Up to 17091 conditions per place. [2022-12-12 19:48:49,326 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 1046 selfloop transitions, 161 changer transitions 97/1304 dead transitions. [2022-12-12 19:48:49,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 1304 transitions, 29138 flow [2022-12-12 19:48:49,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 19:48:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 19:48:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 97 transitions. [2022-12-12 19:48:49,327 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4330357142857143 [2022-12-12 19:48:49,328 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 77 predicate places. [2022-12-12 19:48:49,328 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 1304 transitions, 29138 flow [2022-12-12 19:48:49,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 1207 transitions, 26974 flow [2022-12-12 19:48:49,437 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 1207 transitions, 26974 flow [2022-12-12 19:48:49,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:49,437 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:49,437 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] [2022-12-12 19:48:49,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 19:48:49,438 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 3 more)] === [2022-12-12 19:48:49,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:49,438 INFO L85 PathProgramCache]: Analyzing trace with hash 363107608, now seen corresponding path program 11 times [2022-12-12 19:48:49,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:49,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39178756] [2022-12-12 19:48:49,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:49,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:49,588 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 19:48:49,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:49,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39178756] [2022-12-12 19:48:49,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39178756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:49,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:49,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 19:48:49,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479131935] [2022-12-12 19:48:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:49,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:48:49,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:49,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:48:49,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:48:49,589 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:49,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 1207 transitions, 26974 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:49,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:49,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:49,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:52,626 INFO L130 PetriNetUnfolder]: 11482/16555 cut-off events. [2022-12-12 19:48:52,626 INFO L131 PetriNetUnfolder]: For 1091/1091 co-relation queries the response was YES. [2022-12-12 19:48:52,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199973 conditions, 16555 events. 11482/16555 cut-off events. For 1091/1091 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 97102 event pairs, 964 based on Foata normal form. 146/16701 useless extension candidates. Maximal degree in co-relation 197639. Up to 16383 conditions per place. [2022-12-12 19:48:52,776 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 893 selfloop transitions, 144 changer transitions 97/1134 dead transitions. [2022-12-12 19:48:52,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 1134 transitions, 27627 flow [2022-12-12 19:48:52,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 19:48:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 19:48:52,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2022-12-12 19:48:52,778 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2022-12-12 19:48:52,778 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 74 predicate places. [2022-12-12 19:48:52,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 1134 transitions, 27627 flow [2022-12-12 19:48:52,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 1037 transitions, 25275 flow [2022-12-12 19:48:52,904 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 1037 transitions, 25275 flow [2022-12-12 19:48:52,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:52,904 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:52,904 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] [2022-12-12 19:48:52,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 19:48:52,904 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:48:52,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:52,905 INFO L85 PathProgramCache]: Analyzing trace with hash 367185100, now seen corresponding path program 12 times [2022-12-12 19:48:52,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:52,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21589441] [2022-12-12 19:48:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:52,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:53,050 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 19:48:53,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:53,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21589441] [2022-12-12 19:48:53,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21589441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:53,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:53,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:48:53,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665534613] [2022-12-12 19:48:53,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:53,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:48:53,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:53,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:48:53,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:48:53,053 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:53,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 1037 transitions, 25275 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:53,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:53,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:53,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:48:56,834 INFO L130 PetriNetUnfolder]: 13004/19125 cut-off events. [2022-12-12 19:48:56,834 INFO L131 PetriNetUnfolder]: For 1239/1239 co-relation queries the response was YES. [2022-12-12 19:48:56,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250149 conditions, 19125 events. 13004/19125 cut-off events. For 1239/1239 co-relation queries the response was YES. Maximal size of possible extension queue 1034. Compared 120153 event pairs, 846 based on Foata normal form. 472/19597 useless extension candidates. Maximal degree in co-relation 247367. Up to 19115 conditions per place. [2022-12-12 19:48:56,980 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 1030 selfloop transitions, 490 changer transitions 0/1520 dead transitions. [2022-12-12 19:48:56,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 1520 transitions, 40072 flow [2022-12-12 19:48:56,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 19:48:56,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 19:48:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 136 transitions. [2022-12-12 19:48:56,982 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.53125 [2022-12-12 19:48:56,983 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 53 predicate places. [2022-12-12 19:48:56,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 1520 transitions, 40072 flow [2022-12-12 19:48:57,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 1520 transitions, 40072 flow [2022-12-12 19:48:57,197 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 1520 transitions, 40072 flow [2022-12-12 19:48:57,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:57,198 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:48:57,198 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] [2022-12-12 19:48:57,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 19:48:57,198 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:48:57,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:48:57,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1947481706, now seen corresponding path program 13 times [2022-12-12 19:48:57,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:48:57,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658482742] [2022-12-12 19:48:57,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:48:57,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:48:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:48:57,380 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 19:48:57,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:48:57,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658482742] [2022-12-12 19:48:57,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658482742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:48:57,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:48:57,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:48:57,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171364233] [2022-12-12 19:48:57,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:48:57,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:48:57,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:48:57,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:48:57,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:48:57,381 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:48:57,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 1520 transitions, 40072 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:48:57,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:48:57,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:48:57,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:01,873 INFO L130 PetriNetUnfolder]: 13155/19406 cut-off events. [2022-12-12 19:49:01,873 INFO L131 PetriNetUnfolder]: For 1233/1233 co-relation queries the response was YES. [2022-12-12 19:49:01,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273209 conditions, 19406 events. 13155/19406 cut-off events. For 1233/1233 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 122967 event pairs, 772 based on Foata normal form. 154/19560 useless extension candidates. Maximal degree in co-relation 270218. Up to 19396 conditions per place. [2022-12-12 19:49:02,142 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 1058 selfloop transitions, 507 changer transitions 0/1565 dead transitions. [2022-12-12 19:49:02,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 1565 transitions, 44372 flow [2022-12-12 19:49:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 19:49:02,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 19:49:02,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2022-12-12 19:49:02,144 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49609375 [2022-12-12 19:49:02,144 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 60 predicate places. [2022-12-12 19:49:02,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 1565 transitions, 44372 flow [2022-12-12 19:49:02,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 1565 transitions, 44372 flow [2022-12-12 19:49:02,295 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 1565 transitions, 44372 flow [2022-12-12 19:49:02,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:02,295 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:02,295 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] [2022-12-12 19:49:02,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-12 19:49:02,295 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:49:02,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:02,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1300659946, now seen corresponding path program 14 times [2022-12-12 19:49:02,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:02,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351945163] [2022-12-12 19:49:02,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:02,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:02,475 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 19:49:02,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:02,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351945163] [2022-12-12 19:49:02,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351945163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:02,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:02,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:49:02,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685995123] [2022-12-12 19:49:02,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:02,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:49:02,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:02,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:49:02,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:49:02,477 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:49:02,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 1565 transitions, 44372 flow. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:02,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:02,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:49:02,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:07,005 INFO L130 PetriNetUnfolder]: 11327/17478 cut-off events. [2022-12-12 19:49:07,005 INFO L131 PetriNetUnfolder]: For 1031/1031 co-relation queries the response was YES. [2022-12-12 19:49:07,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263548 conditions, 17478 events. 11327/17478 cut-off events. For 1031/1031 co-relation queries the response was YES. Maximal size of possible extension queue 1059. Compared 117580 event pairs, 184 based on Foata normal form. 780/18258 useless extension candidates. Maximal degree in co-relation 259164. Up to 17468 conditions per place. [2022-12-12 19:49:07,125 INFO L137 encePairwiseOnDemand]: 20/32 looper letters, 985 selfloop transitions, 781 changer transitions 14/1780 dead transitions. [2022-12-12 19:49:07,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 1780 transitions, 54039 flow [2022-12-12 19:49:07,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 19:49:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 19:49:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 165 transitions. [2022-12-12 19:49:07,126 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.515625 [2022-12-12 19:49:07,126 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 68 predicate places. [2022-12-12 19:49:07,126 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 1780 transitions, 54039 flow [2022-12-12 19:49:07,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 1766 transitions, 53619 flow [2022-12-12 19:49:07,334 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 1766 transitions, 53619 flow [2022-12-12 19:49:07,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:07,334 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:07,334 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] [2022-12-12 19:49:07,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-12 19:49:07,334 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:49:07,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:07,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1856168552, now seen corresponding path program 15 times [2022-12-12 19:49:07,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:07,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042078911] [2022-12-12 19:49:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:07,473 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 19:49:07,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:07,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042078911] [2022-12-12 19:49:07,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042078911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:07,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:07,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:49:07,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64011754] [2022-12-12 19:49:07,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:07,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:49:07,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:07,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:49:07,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:49:07,475 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:49:07,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 1766 transitions, 53619 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:07,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:07,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:49:07,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:12,832 INFO L130 PetriNetUnfolder]: 11258/17555 cut-off events. [2022-12-12 19:49:12,833 INFO L131 PetriNetUnfolder]: For 991/991 co-relation queries the response was YES. [2022-12-12 19:49:12,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282259 conditions, 17555 events. 11258/17555 cut-off events. For 991/991 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 120712 event pairs, 172 based on Foata normal form. 352/17907 useless extension candidates. Maximal degree in co-relation 277588. Up to 17545 conditions per place. [2022-12-12 19:49:12,967 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 1298 selfloop transitions, 615 changer transitions 29/1942 dead transitions. [2022-12-12 19:49:12,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 1942 transitions, 62825 flow [2022-12-12 19:49:12,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 19:49:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 19:49:12,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 123 transitions. [2022-12-12 19:49:12,968 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.48046875 [2022-12-12 19:49:12,969 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 75 predicate places. [2022-12-12 19:49:12,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 1942 transitions, 62825 flow [2022-12-12 19:49:13,093 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 1913 transitions, 61873 flow [2022-12-12 19:49:13,093 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 1913 transitions, 61873 flow [2022-12-12 19:49:13,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:13,093 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:13,093 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] [2022-12-12 19:49:13,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-12 19:49:13,094 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:49:13,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:13,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1737316696, now seen corresponding path program 16 times [2022-12-12 19:49:13,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:13,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102457905] [2022-12-12 19:49:13,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:13,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:13,254 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 19:49:13,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:13,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102457905] [2022-12-12 19:49:13,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102457905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:13,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:13,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:49:13,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620144394] [2022-12-12 19:49:13,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:13,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:49:13,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:13,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:49:13,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:49:13,257 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:49:13,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 1913 transitions, 61873 flow. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:13,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:13,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:49:13,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:19,611 INFO L130 PetriNetUnfolder]: 11367/17952 cut-off events. [2022-12-12 19:49:19,611 INFO L131 PetriNetUnfolder]: For 1052/1052 co-relation queries the response was YES. [2022-12-12 19:49:19,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306561 conditions, 17952 events. 11367/17952 cut-off events. For 1052/1052 co-relation queries the response was YES. Maximal size of possible extension queue 1187. Compared 126662 event pairs, 156 based on Foata normal form. 524/18476 useless extension candidates. Maximal degree in co-relation 301468. Up to 17942 conditions per place. [2022-12-12 19:49:19,750 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 1199 selfloop transitions, 940 changer transitions 30/2169 dead transitions. [2022-12-12 19:49:19,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 2169 transitions, 74430 flow [2022-12-12 19:49:19,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 19:49:19,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 19:49:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 163 transitions. [2022-12-12 19:49:19,752 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.509375 [2022-12-12 19:49:19,752 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 84 predicate places. [2022-12-12 19:49:19,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 2169 transitions, 74430 flow [2022-12-12 19:49:19,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 2139 transitions, 73410 flow [2022-12-12 19:49:19,896 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 2139 transitions, 73410 flow [2022-12-12 19:49:19,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:19,896 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:19,896 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] [2022-12-12 19:49:19,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-12 19:49:19,897 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:49:19,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:19,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1488955114, now seen corresponding path program 17 times [2022-12-12 19:49:19,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:19,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738087549] [2022-12-12 19:49:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:19,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:20,025 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 19:49:20,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:20,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738087549] [2022-12-12 19:49:20,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738087549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:20,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:20,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:49:20,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159305658] [2022-12-12 19:49:20,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:20,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:49:20,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:20,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:49:20,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:49:20,026 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:49:20,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 2139 transitions, 73410 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:20,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:20,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:49:20,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:27,161 INFO L130 PetriNetUnfolder]: 11725/18482 cut-off events. [2022-12-12 19:49:27,161 INFO L131 PetriNetUnfolder]: For 1062/1062 co-relation queries the response was YES. [2022-12-12 19:49:27,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334086 conditions, 18482 events. 11725/18482 cut-off events. For 1062/1062 co-relation queries the response was YES. Maximal size of possible extension queue 1225. Compared 130160 event pairs, 152 based on Foata normal form. 82/18564 useless extension candidates. Maximal degree in co-relation 328698. Up to 18472 conditions per place. [2022-12-12 19:49:27,369 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 2041 selfloop transitions, 296 changer transitions 33/2370 dead transitions. [2022-12-12 19:49:27,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 2370 transitions, 86064 flow [2022-12-12 19:49:27,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 19:49:27,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 19:49:27,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 107 transitions. [2022-12-12 19:49:27,371 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41796875 [2022-12-12 19:49:27,371 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 91 predicate places. [2022-12-12 19:49:27,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 2370 transitions, 86064 flow [2022-12-12 19:49:27,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 2337 transitions, 84861 flow [2022-12-12 19:49:27,535 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 2337 transitions, 84861 flow [2022-12-12 19:49:27,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:27,535 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:27,535 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] [2022-12-12 19:49:27,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-12 19:49:27,535 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:49:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:27,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1549312436, now seen corresponding path program 18 times [2022-12-12 19:49:27,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:27,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701413827] [2022-12-12 19:49:27,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:27,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:27,708 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 19:49:27,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:27,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701413827] [2022-12-12 19:49:27,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701413827] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:27,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:27,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:49:27,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40723744] [2022-12-12 19:49:27,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:27,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:49:27,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:27,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:49:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:49:27,709 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:49:27,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 2337 transitions, 84861 flow. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:27,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:27,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:49:27,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:37,105 INFO L130 PetriNetUnfolder]: 12454/19571 cut-off events. [2022-12-12 19:49:37,105 INFO L131 PetriNetUnfolder]: For 1081/1081 co-relation queries the response was YES. [2022-12-12 19:49:37,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373306 conditions, 19571 events. 12454/19571 cut-off events. For 1081/1081 co-relation queries the response was YES. Maximal size of possible extension queue 1320. Compared 138741 event pairs, 146 based on Foata normal form. 120/19691 useless extension candidates. Maximal degree in co-relation 367623. Up to 19561 conditions per place. [2022-12-12 19:49:37,310 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2157 selfloop transitions, 533 changer transitions 2/2692 dead transitions. [2022-12-12 19:49:37,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 2692 transitions, 103100 flow [2022-12-12 19:49:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 19:49:37,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 19:49:37,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 130 transitions. [2022-12-12 19:49:37,311 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3693181818181818 [2022-12-12 19:49:37,312 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 101 predicate places. [2022-12-12 19:49:37,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 2692 transitions, 103100 flow [2022-12-12 19:49:37,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 2690 transitions, 103024 flow [2022-12-12 19:49:37,522 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 2690 transitions, 103024 flow [2022-12-12 19:49:37,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:37,522 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:37,522 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] [2022-12-12 19:49:37,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-12 19:49:37,523 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:49:37,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash -476099364, now seen corresponding path program 19 times [2022-12-12 19:49:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:37,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987057449] [2022-12-12 19:49:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:37,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:37,694 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 19:49:37,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:37,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987057449] [2022-12-12 19:49:37,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987057449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:37,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:37,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:49:37,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740386466] [2022-12-12 19:49:37,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:37,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:49:37,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:37,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:49:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:49:37,697 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:49:37,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 2690 transitions, 103024 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:37,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:37,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:49:37,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:48,057 INFO L130 PetriNetUnfolder]: 12459/19588 cut-off events. [2022-12-12 19:49:48,057 INFO L131 PetriNetUnfolder]: For 1084/1084 co-relation queries the response was YES. [2022-12-12 19:49:48,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393220 conditions, 19588 events. 12459/19588 cut-off events. For 1084/1084 co-relation queries the response was YES. Maximal size of possible extension queue 1322. Compared 139092 event pairs, 158 based on Foata normal form. 8/19596 useless extension candidates. Maximal degree in co-relation 387242. Up to 19578 conditions per place. [2022-12-12 19:49:48,265 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 2354 selfloop transitions, 316 changer transitions 29/2699 dead transitions. [2022-12-12 19:49:48,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 2699 transitions, 108767 flow [2022-12-12 19:49:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 19:49:48,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 19:49:48,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 103 transitions. [2022-12-12 19:49:48,266 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40234375 [2022-12-12 19:49:48,267 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 108 predicate places. [2022-12-12 19:49:48,267 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 2699 transitions, 108767 flow [2022-12-12 19:49:48,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 2670 transitions, 107586 flow [2022-12-12 19:49:48,594 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 2670 transitions, 107586 flow [2022-12-12 19:49:48,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:48,594 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:48,594 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] [2022-12-12 19:49:48,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-12 19:49:48,595 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:49:48,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:48,595 INFO L85 PathProgramCache]: Analyzing trace with hash -982456600, now seen corresponding path program 20 times [2022-12-12 19:49:48,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:48,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704764580] [2022-12-12 19:49:48,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:48,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:48,837 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 19:49:48,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:48,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704764580] [2022-12-12 19:49:48,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704764580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:48,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:48,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:49:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690985899] [2022-12-12 19:49:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:48,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:49:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:48,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:49:48,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:49:48,838 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:49:48,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 2670 transitions, 107586 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:48,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:48,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:49:48,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:59,752 INFO L130 PetriNetUnfolder]: 12526/19715 cut-off events. [2022-12-12 19:49:59,753 INFO L131 PetriNetUnfolder]: For 1093/1093 co-relation queries the response was YES. [2022-12-12 19:49:59,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415482 conditions, 19715 events. 12526/19715 cut-off events. For 1093/1093 co-relation queries the response was YES. Maximal size of possible extension queue 1345. Compared 140480 event pairs, 168 based on Foata normal form. 104/19819 useless extension candidates. Maximal degree in co-relation 409381. Up to 19705 conditions per place. [2022-12-12 19:49:59,936 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 2657 selfloop transitions, 92 changer transitions 29/2778 dead transitions. [2022-12-12 19:49:59,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 2778 transitions, 117498 flow [2022-12-12 19:49:59,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 19:49:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 19:49:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 97 transitions. [2022-12-12 19:49:59,937 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37890625 [2022-12-12 19:49:59,938 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 115 predicate places. [2022-12-12 19:49:59,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 2778 transitions, 117498 flow [2022-12-12 19:50:00,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 2749 transitions, 116262 flow [2022-12-12 19:50:00,126 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 2749 transitions, 116262 flow [2022-12-12 19:50:00,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:00,126 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:50:00,126 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] [2022-12-12 19:50:00,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-12 19:50:00,126 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:50:00,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:50:00,127 INFO L85 PathProgramCache]: Analyzing trace with hash 500658484, now seen corresponding path program 21 times [2022-12-12 19:50:00,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:50:00,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364580847] [2022-12-12 19:50:00,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:50:00,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:50:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:50:00,295 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 19:50:00,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:50:00,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364580847] [2022-12-12 19:50:00,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364580847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:50:00,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:50:00,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:50:00,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653434636] [2022-12-12 19:50:00,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:50:00,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:50:00,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:50:00,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:50:00,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:50:00,297 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:50:00,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 2749 transitions, 116262 flow. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:00,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:50:00,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:50:00,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:50:13,788 INFO L130 PetriNetUnfolder]: 12496/19649 cut-off events. [2022-12-12 19:50:13,789 INFO L131 PetriNetUnfolder]: For 1073/1073 co-relation queries the response was YES. [2022-12-12 19:50:13,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433730 conditions, 19649 events. 12496/19649 cut-off events. For 1073/1073 co-relation queries the response was YES. Maximal size of possible extension queue 1337. Compared 139616 event pairs, 124 based on Foata normal form. 8/19657 useless extension candidates. Maximal degree in co-relation 427342. Up to 19639 conditions per place. [2022-12-12 19:50:14,008 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 2684 selfloop transitions, 102 changer transitions 0/2786 dead transitions. [2022-12-12 19:50:14,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 2786 transitions, 123394 flow [2022-12-12 19:50:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 19:50:14,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 19:50:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2022-12-12 19:50:14,010 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3506944444444444 [2022-12-12 19:50:14,010 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 123 predicate places. [2022-12-12 19:50:14,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 2786 transitions, 123394 flow [2022-12-12 19:50:14,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 2786 transitions, 123394 flow [2022-12-12 19:50:14,200 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 2786 transitions, 123394 flow [2022-12-12 19:50:14,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:14,200 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:50:14,200 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] [2022-12-12 19:50:14,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-12 19:50:14,200 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:50:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:50:14,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1931727208, now seen corresponding path program 22 times [2022-12-12 19:50:14,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:50:14,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071769047] [2022-12-12 19:50:14,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:50:14,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:50:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:50:14,340 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 19:50:14,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:50:14,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071769047] [2022-12-12 19:50:14,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071769047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:50:14,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:50:14,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 19:50:14,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800151838] [2022-12-12 19:50:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:50:14,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:50:14,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:50:14,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:50:14,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:50:14,341 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:50:14,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 2786 transitions, 123394 flow. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:14,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:50:14,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:50:14,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:50:26,852 INFO L130 PetriNetUnfolder]: 13169/20942 cut-off events. [2022-12-12 19:50:26,852 INFO L131 PetriNetUnfolder]: For 1092/1092 co-relation queries the response was YES. [2022-12-12 19:50:26,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483130 conditions, 20942 events. 13169/20942 cut-off events. For 1092/1092 co-relation queries the response was YES. Maximal size of possible extension queue 1502. Compared 153759 event pairs, 146 based on Foata normal form. 548/21490 useless extension candidates. Maximal degree in co-relation 476269. Up to 20932 conditions per place. [2022-12-12 19:50:27,069 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 1633 selfloop transitions, 1420 changer transitions 90/3143 dead transitions. [2022-12-12 19:50:27,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 3143 transitions, 145406 flow [2022-12-12 19:50:27,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 19:50:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 19:50:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 193 transitions. [2022-12-12 19:50:27,070 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4639423076923077 [2022-12-12 19:50:27,071 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 135 predicate places. [2022-12-12 19:50:27,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 3143 transitions, 145406 flow [2022-12-12 19:50:27,274 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 3053 transitions, 141248 flow [2022-12-12 19:50:27,275 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 3053 transitions, 141248 flow [2022-12-12 19:50:27,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:27,275 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:50:27,275 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] [2022-12-12 19:50:27,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-12 19:50:27,275 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:50:27,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:50:27,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1539079866, now seen corresponding path program 23 times [2022-12-12 19:50:27,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:50:27,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689425254] [2022-12-12 19:50:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:50:27,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:50:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:50:27,481 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 19:50:27,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:50:27,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689425254] [2022-12-12 19:50:27,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689425254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:50:27,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:50:27,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 19:50:27,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362622444] [2022-12-12 19:50:27,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:50:27,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 19:50:27,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:50:27,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 19:50:27,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 19:50:27,483 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:50:27,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 3053 transitions, 141248 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:27,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:50:27,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:50:27,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:50:40,848 INFO L130 PetriNetUnfolder]: 13037/20752 cut-off events. [2022-12-12 19:50:40,848 INFO L131 PetriNetUnfolder]: For 1087/1087 co-relation queries the response was YES. [2022-12-12 19:50:40,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499499 conditions, 20752 events. 13037/20752 cut-off events. For 1087/1087 co-relation queries the response was YES. Maximal size of possible extension queue 1499. Compared 152369 event pairs, 168 based on Foata normal form. 76/20828 useless extension candidates. Maximal degree in co-relation 492343. Up to 20742 conditions per place. [2022-12-12 19:50:41,043 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 2961 selfloop transitions, 98 changer transitions 66/3125 dead transitions. [2022-12-12 19:50:41,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 3125 transitions, 150822 flow [2022-12-12 19:50:41,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 19:50:41,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 19:50:41,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 91 transitions. [2022-12-12 19:50:41,044 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35546875 [2022-12-12 19:50:41,044 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 142 predicate places. [2022-12-12 19:50:41,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 3125 transitions, 150822 flow [2022-12-12 19:50:41,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 3059 transitions, 147624 flow [2022-12-12 19:50:41,272 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 3059 transitions, 147624 flow [2022-12-12 19:50:41,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:41,272 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:50:41,272 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] [2022-12-12 19:50:41,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-12 19:50:41,272 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:50:41,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:50:41,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1153796648, now seen corresponding path program 24 times [2022-12-12 19:50:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:50:41,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712811855] [2022-12-12 19:50:41,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:50:41,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:50:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:50:41,420 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 19:50:41,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:50:41,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712811855] [2022-12-12 19:50:41,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712811855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:50:41,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:50:41,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 19:50:41,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093291410] [2022-12-12 19:50:41,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:50:41,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:50:41,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:50:41,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:50:41,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:50:41,421 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:50:41,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 3059 transitions, 147624 flow. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:41,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:50:41,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:50:41,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:50:57,314 INFO L130 PetriNetUnfolder]: 12993/21218 cut-off events. [2022-12-12 19:50:57,314 INFO L131 PetriNetUnfolder]: For 1120/1120 co-relation queries the response was YES. [2022-12-12 19:50:57,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531932 conditions, 21218 events. 12993/21218 cut-off events. For 1120/1120 co-relation queries the response was YES. Maximal size of possible extension queue 1627. Compared 163344 event pairs, 132 based on Foata normal form. 1086/22304 useless extension candidates. Maximal degree in co-relation 524531. Up to 21208 conditions per place. [2022-12-12 19:50:57,545 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 1804 selfloop transitions, 1599 changer transitions 220/3623 dead transitions. [2022-12-12 19:50:57,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 3623 transitions, 182077 flow [2022-12-12 19:50:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 19:50:57,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 19:50:57,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 201 transitions. [2022-12-12 19:50:57,547 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4831730769230769 [2022-12-12 19:50:57,547 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 154 predicate places. [2022-12-12 19:50:57,547 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 3623 transitions, 182077 flow [2022-12-12 19:50:57,786 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 3403 transitions, 170966 flow [2022-12-12 19:50:57,786 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 3403 transitions, 170966 flow [2022-12-12 19:50:57,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:57,786 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:50:57,787 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] [2022-12-12 19:50:57,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-12 19:50:57,787 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:50:57,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:50:57,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1275782186, now seen corresponding path program 25 times [2022-12-12 19:50:57,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:50:57,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795990147] [2022-12-12 19:50:57,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:50:57,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:50:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:50:58,123 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 19:50:58,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:50:58,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795990147] [2022-12-12 19:50:58,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795990147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:50:58,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:50:58,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 19:50:58,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636367950] [2022-12-12 19:50:58,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:50:58,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:50:58,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:50:58,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:50:58,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:50:58,125 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:50:58,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 3403 transitions, 170966 flow. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:58,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:50:58,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:50:58,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:51:15,145 INFO L130 PetriNetUnfolder]: 12860/21277 cut-off events. [2022-12-12 19:51:15,145 INFO L131 PetriNetUnfolder]: For 1087/1087 co-relation queries the response was YES. [2022-12-12 19:51:15,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554636 conditions, 21277 events. 12860/21277 cut-off events. For 1087/1087 co-relation queries the response was YES. Maximal size of possible extension queue 1692. Compared 167141 event pairs, 128 based on Foata normal form. 662/21939 useless extension candidates. Maximal degree in co-relation 546942. Up to 21267 conditions per place. [2022-12-12 19:51:15,342 INFO L137 encePairwiseOnDemand]: 20/32 looper letters, 1839 selfloop transitions, 1772 changer transitions 90/3701 dead transitions. [2022-12-12 19:51:15,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 3701 transitions, 193301 flow [2022-12-12 19:51:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 19:51:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 19:51:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2022-12-12 19:51:15,344 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.484375 [2022-12-12 19:51:15,344 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 165 predicate places. [2022-12-12 19:51:15,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 3701 transitions, 193301 flow [2022-12-12 19:51:15,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 3611 transitions, 188612 flow [2022-12-12 19:51:15,765 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 3611 transitions, 188612 flow [2022-12-12 19:51:15,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:51:15,766 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:51:15,766 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] [2022-12-12 19:51:15,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-12 19:51:15,766 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:51:15,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:51:15,767 INFO L85 PathProgramCache]: Analyzing trace with hash -452492318, now seen corresponding path program 26 times [2022-12-12 19:51:15,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:51:15,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399947229] [2022-12-12 19:51:15,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:51:15,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:51:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:51:16,055 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 19:51:16,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:51:16,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399947229] [2022-12-12 19:51:16,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399947229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:51:16,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:51:16,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 19:51:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206680015] [2022-12-12 19:51:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:51:16,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:51:16,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:51:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:51:16,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:51:16,058 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:51:16,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 3611 transitions, 188612 flow. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:51:16,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:51:16,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:51:16,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:51:34,844 INFO L130 PetriNetUnfolder]: 12809/21318 cut-off events. [2022-12-12 19:51:34,844 INFO L131 PetriNetUnfolder]: For 1197/1197 co-relation queries the response was YES. [2022-12-12 19:51:34,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577046 conditions, 21318 events. 12809/21318 cut-off events. For 1197/1197 co-relation queries the response was YES. Maximal size of possible extension queue 1658. Compared 168358 event pairs, 28 based on Foata normal form. 170/21488 useless extension candidates. Maximal degree in co-relation 569179. Up to 21308 conditions per place. [2022-12-12 19:51:35,072 INFO L137 encePairwiseOnDemand]: 20/32 looper letters, 1835 selfloop transitions, 2133 changer transitions 40/4008 dead transitions. [2022-12-12 19:51:35,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 4008 transitions, 217401 flow [2022-12-12 19:51:35,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 19:51:35,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 19:51:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 191 transitions. [2022-12-12 19:51:35,074 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.45913461538461536 [2022-12-12 19:51:35,074 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 177 predicate places. [2022-12-12 19:51:35,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 4008 transitions, 217401 flow [2022-12-12 19:51:35,387 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 3968 transitions, 215241 flow [2022-12-12 19:51:35,387 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 3968 transitions, 215241 flow [2022-12-12 19:51:35,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:51:35,390 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:51:35,390 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] [2022-12-12 19:51:35,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-12 19:51:35,390 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:51:35,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:51:35,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1060939566, now seen corresponding path program 27 times [2022-12-12 19:51:35,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:51:35,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924359253] [2022-12-12 19:51:35,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:51:35,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:51:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:51:35,858 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 19:51:35,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:51:35,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924359253] [2022-12-12 19:51:35,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924359253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:51:35,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:51:35,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 19:51:35,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622731510] [2022-12-12 19:51:35,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:51:35,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 19:51:35,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:51:35,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 19:51:35,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-12 19:51:35,860 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:51:35,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 3968 transitions, 215241 flow. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:51:35,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:51:35,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:51:35,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:51:54,714 INFO L130 PetriNetUnfolder]: 12637/21098 cut-off events. [2022-12-12 19:51:54,714 INFO L131 PetriNetUnfolder]: For 1238/1238 co-relation queries the response was YES. [2022-12-12 19:51:54,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592202 conditions, 21098 events. 12637/21098 cut-off events. For 1238/1238 co-relation queries the response was YES. Maximal size of possible extension queue 1645. Compared 166883 event pairs, 30 based on Foata normal form. 184/21282 useless extension candidates. Maximal degree in co-relation 584160. Up to 21088 conditions per place. [2022-12-12 19:51:54,911 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 1884 selfloop transitions, 2138 changer transitions 47/4069 dead transitions. [2022-12-12 19:51:54,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 4069 transitions, 228860 flow [2022-12-12 19:51:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 19:51:54,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 19:51:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 196 transitions. [2022-12-12 19:51:54,916 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4375 [2022-12-12 19:51:54,917 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 190 predicate places. [2022-12-12 19:51:54,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 4069 transitions, 228860 flow [2022-12-12 19:51:55,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 238 places, 4022 transitions, 226204 flow [2022-12-12 19:51:55,334 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 4022 transitions, 226204 flow [2022-12-12 19:51:55,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:51:55,334 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:51:55,334 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] [2022-12-12 19:51:55,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-12 19:51:55,336 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:51:55,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:51:55,336 INFO L85 PathProgramCache]: Analyzing trace with hash -866529054, now seen corresponding path program 28 times [2022-12-12 19:51:55,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:51:55,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644022547] [2022-12-12 19:51:55,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:51:55,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:51:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:51:55,523 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 19:51:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:51:55,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644022547] [2022-12-12 19:51:55,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644022547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:51:55,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:51:55,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 19:51:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523634057] [2022-12-12 19:51:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:51:55,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 19:51:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:51:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 19:51:55,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-12 19:51:55,526 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:51:55,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 4022 transitions, 226204 flow. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:51:55,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:51:55,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:51:55,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:52:24,583 INFO L130 PetriNetUnfolder]: 12800/21489 cut-off events. [2022-12-12 19:52:24,583 INFO L131 PetriNetUnfolder]: For 1247/1247 co-relation queries the response was YES. [2022-12-12 19:52:24,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624641 conditions, 21489 events. 12800/21489 cut-off events. For 1247/1247 co-relation queries the response was YES. Maximal size of possible extension queue 1696. Compared 171904 event pairs, 26 based on Foata normal form. 216/21705 useless extension candidates. Maximal degree in co-relation 616316. Up to 21479 conditions per place. [2022-12-12 19:52:24,789 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 1934 selfloop transitions, 2179 changer transitions 93/4206 dead transitions. [2022-12-12 19:52:24,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 4206 transitions, 244947 flow [2022-12-12 19:52:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 19:52:24,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 19:52:24,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 211 transitions. [2022-12-12 19:52:24,791 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.412109375 [2022-12-12 19:52:24,795 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 205 predicate places. [2022-12-12 19:52:24,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 4206 transitions, 244947 flow [2022-12-12 19:52:25,066 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 253 places, 4113 transitions, 239535 flow [2022-12-12 19:52:25,067 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 4113 transitions, 239535 flow [2022-12-12 19:52:25,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:52:25,067 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:52:25,067 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] [2022-12-12 19:52:25,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-12 19:52:25,067 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:52:25,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:52:25,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1562006662, now seen corresponding path program 29 times [2022-12-12 19:52:25,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:52:25,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209573197] [2022-12-12 19:52:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:52:25,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:52:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:52:25,236 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 19:52:25,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:52:25,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209573197] [2022-12-12 19:52:25,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209573197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:52:25,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:52:25,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:52:25,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779746026] [2022-12-12 19:52:25,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:52:25,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:52:25,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:52:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:52:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:52:25,237 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:52:25,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 4113 transitions, 239535 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:52:25,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:52:25,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:52:25,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:52:54,761 INFO L130 PetriNetUnfolder]: 13156/22229 cut-off events. [2022-12-12 19:52:54,762 INFO L131 PetriNetUnfolder]: For 1248/1248 co-relation queries the response was YES. [2022-12-12 19:52:54,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668314 conditions, 22229 events. 13156/22229 cut-off events. For 1248/1248 co-relation queries the response was YES. Maximal size of possible extension queue 1806. Compared 180429 event pairs, 38 based on Foata normal form. 192/22421 useless extension candidates. Maximal degree in co-relation 659706. Up to 22219 conditions per place. [2022-12-12 19:52:55,000 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2026 selfloop transitions, 2361 changer transitions 78/4465 dead transitions. [2022-12-12 19:52:55,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 4465 transitions, 268899 flow [2022-12-12 19:52:55,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-12 19:52:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-12 19:52:55,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 251 transitions. [2022-12-12 19:52:55,002 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3921875 [2022-12-12 19:52:55,004 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 224 predicate places. [2022-12-12 19:52:55,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 4465 transitions, 268899 flow [2022-12-12 19:52:55,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 4387 transitions, 264189 flow [2022-12-12 19:52:55,522 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 4387 transitions, 264189 flow [2022-12-12 19:52:55,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:52:55,522 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:52:55,522 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] [2022-12-12 19:52:55,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-12 19:52:55,522 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:52:55,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:52:55,522 INFO L85 PathProgramCache]: Analyzing trace with hash -427614558, now seen corresponding path program 30 times [2022-12-12 19:52:55,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:52:55,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683460611] [2022-12-12 19:52:55,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:52:55,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:52:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:52:55,676 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 19:52:55,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:52:55,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683460611] [2022-12-12 19:52:55,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683460611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:52:55,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:52:55,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 19:52:55,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22207768] [2022-12-12 19:52:55,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:52:55,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 19:52:55,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:52:55,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 19:52:55,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-12 19:52:55,677 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:52:55,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 4387 transitions, 264189 flow. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:52:55,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:52:55,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:52:55,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:53:27,476 INFO L130 PetriNetUnfolder]: 13257/22476 cut-off events. [2022-12-12 19:53:27,476 INFO L131 PetriNetUnfolder]: For 1242/1242 co-relation queries the response was YES. [2022-12-12 19:53:27,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698189 conditions, 22476 events. 13257/22476 cut-off events. For 1242/1242 co-relation queries the response was YES. Maximal size of possible extension queue 1853. Compared 183963 event pairs, 38 based on Foata normal form. 212/22688 useless extension candidates. Maximal degree in co-relation 689298. Up to 22466 conditions per place. [2022-12-12 19:53:27,699 INFO L137 encePairwiseOnDemand]: 20/32 looper letters, 1985 selfloop transitions, 2328 changer transitions 221/4534 dead transitions. [2022-12-12 19:53:27,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 4534 transitions, 282092 flow [2022-12-12 19:53:27,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 19:53:27,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 19:53:27,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 204 transitions. [2022-12-12 19:53:27,701 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2022-12-12 19:53:27,701 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 237 predicate places. [2022-12-12 19:53:27,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 285 places, 4534 transitions, 282092 flow [2022-12-12 19:53:28,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 4313 transitions, 268366 flow [2022-12-12 19:53:28,136 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 4313 transitions, 268366 flow [2022-12-12 19:53:28,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:53:28,136 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:53:28,136 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] [2022-12-12 19:53:28,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-12 19:53:28,137 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:53:28,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:53:28,137 INFO L85 PathProgramCache]: Analyzing trace with hash 913463256, now seen corresponding path program 31 times [2022-12-12 19:53:28,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:53:28,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641760104] [2022-12-12 19:53:28,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:53:28,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:53:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:53:28,279 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 19:53:28,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:53:28,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641760104] [2022-12-12 19:53:28,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641760104] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:53:28,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:53:28,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:53:28,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150092739] [2022-12-12 19:53:28,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:53:28,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:53:28,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:53:28,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:53:28,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:53:28,280 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:53:28,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 4313 transitions, 268366 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:53:28,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:53:28,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:53:28,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:53:56,265 INFO L130 PetriNetUnfolder]: 13254/22629 cut-off events. [2022-12-12 19:53:56,266 INFO L131 PetriNetUnfolder]: For 1238/1238 co-relation queries the response was YES. [2022-12-12 19:53:56,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725558 conditions, 22629 events. 13254/22629 cut-off events. For 1238/1238 co-relation queries the response was YES. Maximal size of possible extension queue 1909. Compared 187242 event pairs, 34 based on Foata normal form. 188/22817 useless extension candidates. Maximal degree in co-relation 716384. Up to 22619 conditions per place. [2022-12-12 19:53:56,512 INFO L137 encePairwiseOnDemand]: 20/32 looper letters, 1999 selfloop transitions, 2330 changer transitions 312/4641 dead transitions. [2022-12-12 19:53:56,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 4641 transitions, 298011 flow [2022-12-12 19:53:56,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 19:53:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 19:53:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 244 transitions. [2022-12-12 19:53:56,513 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4236111111111111 [2022-12-12 19:53:56,514 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 254 predicate places. [2022-12-12 19:53:56,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 4641 transitions, 298011 flow [2022-12-12 19:53:56,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 4329 transitions, 278022 flow [2022-12-12 19:53:56,809 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 4329 transitions, 278022 flow [2022-12-12 19:53:56,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:53:56,809 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:53:56,809 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] [2022-12-12 19:53:56,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-12 19:53:56,810 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:53:56,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:53:56,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1433117270, now seen corresponding path program 32 times [2022-12-12 19:53:56,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:53:56,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256155751] [2022-12-12 19:53:56,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:53:56,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:53:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:53:56,962 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 19:53:56,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:53:56,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256155751] [2022-12-12 19:53:56,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256155751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:53:56,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:53:56,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 19:53:56,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584848462] [2022-12-12 19:53:56,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:53:56,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 19:53:56,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:53:56,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 19:53:56,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-12 19:53:56,963 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:53:56,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 4329 transitions, 278022 flow. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:53:56,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:53:56,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:53:56,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:54:24,169 INFO L130 PetriNetUnfolder]: 12754/21977 cut-off events. [2022-12-12 19:54:24,169 INFO L131 PetriNetUnfolder]: For 1262/1262 co-relation queries the response was YES. [2022-12-12 19:54:24,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726663 conditions, 21977 events. 12754/21977 cut-off events. For 1262/1262 co-relation queries the response was YES. Maximal size of possible extension queue 1827. Compared 183443 event pairs, 34 based on Foata normal form. 394/22371 useless extension candidates. Maximal degree in co-relation 717206. Up to 21967 conditions per place. [2022-12-12 19:54:24,387 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2016 selfloop transitions, 2348 changer transitions 202/4566 dead transitions. [2022-12-12 19:54:24,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 4566 transitions, 302382 flow [2022-12-12 19:54:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 19:54:24,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 19:54:24,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 223 transitions. [2022-12-12 19:54:24,388 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.435546875 [2022-12-12 19:54:24,389 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 269 predicate places. [2022-12-12 19:54:24,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 4566 transitions, 302382 flow [2022-12-12 19:54:24,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 4364 transitions, 289002 flow [2022-12-12 19:54:24,805 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 4364 transitions, 289002 flow [2022-12-12 19:54:24,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:54:24,806 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:54:24,806 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] [2022-12-12 19:54:24,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-12 19:54:24,806 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:54:24,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:54:24,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1209700282, now seen corresponding path program 33 times [2022-12-12 19:54:24,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:54:24,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645115911] [2022-12-12 19:54:24,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:54:24,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:54:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:54:25,014 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 19:54:25,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:54:25,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645115911] [2022-12-12 19:54:25,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645115911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:54:25,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:54:25,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:54:25,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798321641] [2022-12-12 19:54:25,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:54:25,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:54:25,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:54:25,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:54:25,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:54:25,016 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:54:25,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 4364 transitions, 289002 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:54:25,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:54:25,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:54:25,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:54:58,980 INFO L130 PetriNetUnfolder]: 12601/21882 cut-off events. [2022-12-12 19:54:58,980 INFO L131 PetriNetUnfolder]: For 1279/1279 co-relation queries the response was YES. [2022-12-12 19:54:59,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745390 conditions, 21882 events. 12601/21882 cut-off events. For 1279/1279 co-relation queries the response was YES. Maximal size of possible extension queue 1832. Compared 184350 event pairs, 40 based on Foata normal form. 270/22152 useless extension candidates. Maximal degree in co-relation 736684. Up to 21872 conditions per place. [2022-12-12 19:54:59,416 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2029 selfloop transitions, 2367 changer transitions 234/4630 dead transitions. [2022-12-12 19:54:59,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 4630 transitions, 315851 flow [2022-12-12 19:54:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-12 19:54:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-12 19:54:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 271 transitions. [2022-12-12 19:54:59,417 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4234375 [2022-12-12 19:54:59,417 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 288 predicate places. [2022-12-12 19:54:59,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 4630 transitions, 315851 flow [2022-12-12 19:54:59,703 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 4396 transitions, 299897 flow [2022-12-12 19:54:59,703 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 4396 transitions, 299897 flow [2022-12-12 19:54:59,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:54:59,704 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:54:59,704 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] [2022-12-12 19:54:59,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-12 19:54:59,704 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:54:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:54:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash 782443370, now seen corresponding path program 34 times [2022-12-12 19:54:59,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:54:59,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307635223] [2022-12-12 19:54:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:54:59,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:54:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:54:59,882 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 19:54:59,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:54:59,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307635223] [2022-12-12 19:54:59,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307635223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:54:59,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:54:59,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 19:54:59,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459610243] [2022-12-12 19:54:59,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:54:59,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 19:54:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:54:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 19:54:59,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-12 19:54:59,884 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:54:59,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 4396 transitions, 299897 flow. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:54:59,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:54:59,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:54:59,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:55:30,654 INFO L130 PetriNetUnfolder]: 11328/19775 cut-off events. [2022-12-12 19:55:30,654 INFO L131 PetriNetUnfolder]: For 1187/1187 co-relation queries the response was YES. [2022-12-12 19:55:30,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693412 conditions, 19775 events. 11328/19775 cut-off events. For 1187/1187 co-relation queries the response was YES. Maximal size of possible extension queue 1682. Compared 165557 event pairs, 48 based on Foata normal form. 524/20299 useless extension candidates. Maximal degree in co-relation 685941. Up to 19765 conditions per place. [2022-12-12 19:55:30,901 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2291 selfloop transitions, 2111 changer transitions 116/4518 dead transitions. [2022-12-12 19:55:30,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 4518 transitions, 317256 flow [2022-12-12 19:55:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 19:55:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 19:55:30,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2022-12-12 19:55:30,902 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-12 19:55:30,902 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 297 predicate places. [2022-12-12 19:55:30,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 345 places, 4518 transitions, 317256 flow [2022-12-12 19:55:31,212 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 4402 transitions, 309124 flow [2022-12-12 19:55:31,213 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 4402 transitions, 309124 flow [2022-12-12 19:55:31,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:55:31,213 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:55:31,213 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] [2022-12-12 19:55:31,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-12 19:55:31,213 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:55:31,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:55:31,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2047103720, now seen corresponding path program 35 times [2022-12-12 19:55:31,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:55:31,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312105690] [2022-12-12 19:55:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:55:31,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:55:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:55:31,527 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 19:55:31,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:55:31,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312105690] [2022-12-12 19:55:31,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312105690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:55:31,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:55:31,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 19:55:31,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600847763] [2022-12-12 19:55:31,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:55:31,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 19:55:31,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:55:31,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 19:55:31,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-12 19:55:31,529 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:55:31,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 4402 transitions, 309124 flow. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:55:31,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:55:31,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:55:31,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:56:00,517 INFO L130 PetriNetUnfolder]: 10655/19094 cut-off events. [2022-12-12 19:56:00,517 INFO L131 PetriNetUnfolder]: For 1114/1114 co-relation queries the response was YES. [2022-12-12 19:56:00,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688642 conditions, 19094 events. 10655/19094 cut-off events. For 1114/1114 co-relation queries the response was YES. Maximal size of possible extension queue 1726. Compared 164860 event pairs, 54 based on Foata normal form. 532/19626 useless extension candidates. Maximal degree in co-relation 680960. Up to 19084 conditions per place. [2022-12-12 19:56:00,727 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2398 selfloop transitions, 2148 changer transitions 174/4720 dead transitions. [2022-12-12 19:56:00,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 4720 transitions, 340875 flow [2022-12-12 19:56:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 19:56:00,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 19:56:00,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 196 transitions. [2022-12-12 19:56:00,728 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47115384615384615 [2022-12-12 19:56:00,728 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 309 predicate places. [2022-12-12 19:56:00,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 357 places, 4720 transitions, 340875 flow [2022-12-12 19:56:01,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 357 places, 4546 transitions, 328329 flow [2022-12-12 19:56:01,002 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 4546 transitions, 328329 flow [2022-12-12 19:56:01,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:56:01,002 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:56:01,002 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] [2022-12-12 19:56:01,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-12 19:56:01,002 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:56:01,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:56:01,002 INFO L85 PathProgramCache]: Analyzing trace with hash -341175850, now seen corresponding path program 36 times [2022-12-12 19:56:01,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:56:01,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536945535] [2022-12-12 19:56:01,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:56:01,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:56:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:56:01,305 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 19:56:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:56:01,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536945535] [2022-12-12 19:56:01,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536945535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:56:01,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:56:01,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 19:56:01,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410363703] [2022-12-12 19:56:01,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:56:01,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 19:56:01,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:56:01,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 19:56:01,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-12 19:56:01,307 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:56:01,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 4546 transitions, 328329 flow. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:56:01,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:56:01,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:56:01,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:56:32,135 INFO L130 PetriNetUnfolder]: 10123/18402 cut-off events. [2022-12-12 19:56:32,135 INFO L131 PetriNetUnfolder]: For 1113/1113 co-relation queries the response was YES. [2022-12-12 19:56:32,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682114 conditions, 18402 events. 10123/18402 cut-off events. For 1113/1113 co-relation queries the response was YES. Maximal size of possible extension queue 1654. Compared 160903 event pairs, 58 based on Foata normal form. 252/18654 useless extension candidates. Maximal degree in co-relation 674221. Up to 18392 conditions per place. [2022-12-12 19:56:32,332 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2186 selfloop transitions, 2276 changer transitions 210/4672 dead transitions. [2022-12-12 19:56:32,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 4672 transitions, 346766 flow [2022-12-12 19:56:32,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 19:56:32,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 19:56:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 217 transitions. [2022-12-12 19:56:32,333 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.423828125 [2022-12-12 19:56:32,333 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 324 predicate places. [2022-12-12 19:56:32,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 372 places, 4672 transitions, 346766 flow [2022-12-12 19:56:32,716 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 372 places, 4462 transitions, 331205 flow [2022-12-12 19:56:32,716 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 4462 transitions, 331205 flow [2022-12-12 19:56:32,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:56:32,716 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:56:32,716 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] [2022-12-12 19:56:32,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-12 19:56:32,716 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:56:32,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:56:32,717 INFO L85 PathProgramCache]: Analyzing trace with hash -35279332, now seen corresponding path program 37 times [2022-12-12 19:56:32,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:56:32,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936510226] [2022-12-12 19:56:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:56:32,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:56:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:56:32,863 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 19:56:32,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:56:32,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936510226] [2022-12-12 19:56:32,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936510226] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:56:32,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:56:32,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:56:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140954790] [2022-12-12 19:56:32,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:56:32,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:56:32,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:56:32,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:56:32,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:56:32,865 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:56:32,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 4462 transitions, 331205 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:56:32,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:56:32,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:56:32,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:57:01,605 INFO L130 PetriNetUnfolder]: 9914/18209 cut-off events. [2022-12-12 19:57:01,605 INFO L131 PetriNetUnfolder]: For 1142/1142 co-relation queries the response was YES. [2022-12-12 19:57:01,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693184 conditions, 18209 events. 9914/18209 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 1656. Compared 161104 event pairs, 50 based on Foata normal form. 160/18369 useless extension candidates. Maximal degree in co-relation 685080. Up to 18199 conditions per place. [2022-12-12 19:57:01,829 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2180 selfloop transitions, 2250 changer transitions 259/4689 dead transitions. [2022-12-12 19:57:01,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 4689 transitions, 357411 flow [2022-12-12 19:57:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-12 19:57:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-12 19:57:01,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 261 transitions. [2022-12-12 19:57:01,843 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4078125 [2022-12-12 19:57:01,843 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 343 predicate places. [2022-12-12 19:57:01,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 391 places, 4689 transitions, 357411 flow [2022-12-12 19:57:02,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 4430 transitions, 337694 flow [2022-12-12 19:57:02,117 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 4430 transitions, 337694 flow [2022-12-12 19:57:02,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:57:02,117 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:57:02,118 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] [2022-12-12 19:57:02,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-12 19:57:02,118 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:57:02,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:57:02,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1654183172, now seen corresponding path program 38 times [2022-12-12 19:57:02,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:57:02,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236364909] [2022-12-12 19:57:02,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:57:02,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:57:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:57:02,443 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 19:57:02,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:57:02,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236364909] [2022-12-12 19:57:02,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236364909] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:57:02,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:57:02,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:57:02,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238641682] [2022-12-12 19:57:02,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:57:02,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:57:02,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:57:02,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:57:02,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:57:02,445 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:57:02,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 4430 transitions, 337694 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:57:02,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:57:02,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:57:02,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:57:24,514 INFO L130 PetriNetUnfolder]: 8708/15637 cut-off events. [2022-12-12 19:57:24,514 INFO L131 PetriNetUnfolder]: For 1077/1077 co-relation queries the response was YES. [2022-12-12 19:57:24,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610940 conditions, 15637 events. 8708/15637 cut-off events. For 1077/1077 co-relation queries the response was YES. Maximal size of possible extension queue 1390. Compared 130364 event pairs, 94 based on Foata normal form. 4/15641 useless extension candidates. Maximal degree in co-relation 604113. Up to 15627 conditions per place. [2022-12-12 19:57:24,881 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 4356 selfloop transitions, 129 changer transitions 10/4495 dead transitions. [2022-12-12 19:57:24,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 4495 transitions, 351627 flow [2022-12-12 19:57:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 19:57:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 19:57:24,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 125 transitions. [2022-12-12 19:57:24,882 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.22977941176470587 [2022-12-12 19:57:24,883 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 358 predicate places. [2022-12-12 19:57:24,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 406 places, 4495 transitions, 351627 flow [2022-12-12 19:57:25,198 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 406 places, 4485 transitions, 350847 flow [2022-12-12 19:57:25,199 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 4485 transitions, 350847 flow [2022-12-12 19:57:25,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:57:25,199 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:57:25,199 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] [2022-12-12 19:57:25,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-12 19:57:25,199 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:57:25,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:57:25,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1459772660, now seen corresponding path program 39 times [2022-12-12 19:57:25,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:57:25,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722222977] [2022-12-12 19:57:25,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:57:25,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:57:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:57:25,353 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 19:57:25,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:57:25,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722222977] [2022-12-12 19:57:25,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722222977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:57:25,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:57:25,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:57:25,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162232786] [2022-12-12 19:57:25,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:57:25,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:57:25,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:57:25,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:57:25,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:57:25,355 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:57:25,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 4485 transitions, 350847 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:57:25,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:57:25,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:57:25,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:57:54,278 INFO L130 PetriNetUnfolder]: 8726/15699 cut-off events. [2022-12-12 19:57:54,279 INFO L131 PetriNetUnfolder]: For 1081/1081 co-relation queries the response was YES. [2022-12-12 19:57:54,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629062 conditions, 15699 events. 8726/15699 cut-off events. For 1081/1081 co-relation queries the response was YES. Maximal size of possible extension queue 1395. Compared 131475 event pairs, 54 based on Foata normal form. 2/15701 useless extension candidates. Maximal degree in co-relation 622062. Up to 15689 conditions per place. [2022-12-12 19:57:54,603 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 2811 selfloop transitions, 1689 changer transitions 13/4513 dead transitions. [2022-12-12 19:57:54,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 4513 transitions, 362063 flow [2022-12-12 19:57:54,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 19:57:54,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 19:57:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 170 transitions. [2022-12-12 19:57:54,604 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3541666666666667 [2022-12-12 19:57:54,619 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 372 predicate places. [2022-12-12 19:57:54,619 INFO L82 GeneralOperation]: Start removeDead. Operand has 420 places, 4513 transitions, 362063 flow [2022-12-12 19:57:54,887 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 420 places, 4500 transitions, 361014 flow [2022-12-12 19:57:54,888 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 4500 transitions, 361014 flow [2022-12-12 19:57:54,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:57:54,888 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:57:54,888 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] [2022-12-12 19:57:54,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-12 19:57:54,888 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:57:54,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:57:54,889 INFO L85 PathProgramCache]: Analyzing trace with hash -212248408, now seen corresponding path program 40 times [2022-12-12 19:57:54,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:57:54,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518663559] [2022-12-12 19:57:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:57:54,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:57:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:57:55,041 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 19:57:55,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:57:55,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518663559] [2022-12-12 19:57:55,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518663559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:57:55,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:57:55,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:57:55,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444779387] [2022-12-12 19:57:55,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:57:55,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:57:55,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:57:55,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:57:55,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:57:55,042 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:57:55,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 4500 transitions, 361014 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:57:55,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:57:55,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:57:55,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:58:25,486 INFO L130 PetriNetUnfolder]: 8706/15663 cut-off events. [2022-12-12 19:58:25,487 INFO L131 PetriNetUnfolder]: For 1075/1075 co-relation queries the response was YES. [2022-12-12 19:58:25,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643278 conditions, 15663 events. 8706/15663 cut-off events. For 1075/1075 co-relation queries the response was YES. Maximal size of possible extension queue 1391. Compared 131018 event pairs, 54 based on Foata normal form. 4/15667 useless extension candidates. Maximal degree in co-relation 636105. Up to 15653 conditions per place. [2022-12-12 19:58:25,708 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 4403 selfloop transitions, 82 changer transitions 18/4503 dead transitions. [2022-12-12 19:58:25,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 4503 transitions, 370260 flow [2022-12-12 19:58:25,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 19:58:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 19:58:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 123 transitions. [2022-12-12 19:58:25,709 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.20230263157894737 [2022-12-12 19:58:25,710 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 390 predicate places. [2022-12-12 19:58:25,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 4503 transitions, 370260 flow [2022-12-12 19:58:26,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 434 places, 4485 transitions, 368778 flow [2022-12-12 19:58:26,176 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 4485 transitions, 368778 flow [2022-12-12 19:58:26,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:58:26,176 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:58:26,176 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] [2022-12-12 19:58:26,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-12 19:58:26,176 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:58:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:58:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1993783452, now seen corresponding path program 41 times [2022-12-12 19:58:26,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:58:26,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162232088] [2022-12-12 19:58:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:58:26,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:58:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:58:26,342 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 19:58:26,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:58:26,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162232088] [2022-12-12 19:58:26,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162232088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:58:26,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:58:26,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:58:26,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025602197] [2022-12-12 19:58:26,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:58:26,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:58:26,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:58:26,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:58:26,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:58:26,344 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:58:26,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 4485 transitions, 368778 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:58:26,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:58:26,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:58:26,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:58:58,728 INFO L130 PetriNetUnfolder]: 8698/15651 cut-off events. [2022-12-12 19:58:58,728 INFO L131 PetriNetUnfolder]: For 1075/1075 co-relation queries the response was YES. [2022-12-12 19:58:58,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 658434 conditions, 15651 events. 8698/15651 cut-off events. For 1075/1075 co-relation queries the response was YES. Maximal size of possible extension queue 1391. Compared 130999 event pairs, 58 based on Foata normal form. 2/15653 useless extension candidates. Maximal degree in co-relation 651088. Up to 15641 conditions per place. [2022-12-12 19:58:58,910 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 4408 selfloop transitions, 67 changer transitions 24/4499 dead transitions. [2022-12-12 19:58:58,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 4499 transitions, 378924 flow [2022-12-12 19:58:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 19:58:58,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 19:58:58,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 109 transitions. [2022-12-12 19:58:58,911 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.20036764705882354 [2022-12-12 19:58:58,912 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 402 predicate places. [2022-12-12 19:58:58,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 450 places, 4499 transitions, 378924 flow [2022-12-12 19:58:59,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 4475 transitions, 376902 flow [2022-12-12 19:58:59,210 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 4475 transitions, 376902 flow [2022-12-12 19:58:59,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:58:59,210 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:58:59,210 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] [2022-12-12 19:58:59,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-12 19:58:59,210 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:58:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:58:59,210 INFO L85 PathProgramCache]: Analyzing trace with hash 509199080, now seen corresponding path program 42 times [2022-12-12 19:58:59,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:58:59,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512920972] [2022-12-12 19:58:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:58:59,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:58:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:58:59,538 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 19:58:59,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:58:59,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512920972] [2022-12-12 19:58:59,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512920972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:58:59,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:58:59,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:58:59,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187959902] [2022-12-12 19:58:59,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:58:59,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:58:59,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:58:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:58:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:58:59,540 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:58:59,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 4475 transitions, 376902 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:58:59,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:58:59,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:58:59,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:59:25,703 INFO L130 PetriNetUnfolder]: 8685/15620 cut-off events. [2022-12-12 19:59:25,703 INFO L131 PetriNetUnfolder]: For 1071/1071 co-relation queries the response was YES. [2022-12-12 19:59:25,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672749 conditions, 15620 events. 8685/15620 cut-off events. For 1071/1071 co-relation queries the response was YES. Maximal size of possible extension queue 1392. Compared 130804 event pairs, 58 based on Foata normal form. 6/15626 useless extension candidates. Maximal degree in co-relation 665230. Up to 15610 conditions per place. [2022-12-12 19:59:25,944 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 4359 selfloop transitions, 89 changer transitions 31/4479 dead transitions. [2022-12-12 19:59:25,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 4479 transitions, 386196 flow [2022-12-12 19:59:25,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 19:59:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 19:59:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 99 transitions. [2022-12-12 19:59:25,945 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.23798076923076922 [2022-12-12 19:59:25,945 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 408 predicate places. [2022-12-12 19:59:25,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 456 places, 4479 transitions, 386196 flow [2022-12-12 19:59:26,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 454 places, 4448 transitions, 383530 flow [2022-12-12 19:59:26,265 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 4448 transitions, 383530 flow [2022-12-12 19:59:26,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:59:26,265 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:59:26,265 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] [2022-12-12 19:59:26,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-12 19:59:26,265 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:59:26,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:59:26,266 INFO L85 PathProgramCache]: Analyzing trace with hash -623792558, now seen corresponding path program 43 times [2022-12-12 19:59:26,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:59:26,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448002100] [2022-12-12 19:59:26,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:59:26,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:59:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:59:26,476 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 19:59:26,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:59:26,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448002100] [2022-12-12 19:59:26,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448002100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:59:26,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:59:26,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:59:26,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693520381] [2022-12-12 19:59:26,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:59:26,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:59:26,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:59:26,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:59:26,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:59:26,479 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:59:26,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 4448 transitions, 383530 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:59:26,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:59:26,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:59:26,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:59:51,415 INFO L130 PetriNetUnfolder]: 8659/15578 cut-off events. [2022-12-12 19:59:51,415 INFO L131 PetriNetUnfolder]: For 1073/1073 co-relation queries the response was YES. [2022-12-12 19:59:51,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686522 conditions, 15578 events. 8659/15578 cut-off events. For 1073/1073 co-relation queries the response was YES. Maximal size of possible extension queue 1385. Compared 130419 event pairs, 106 based on Foata normal form. 6/15584 useless extension candidates. Maximal degree in co-relation 678830. Up to 15568 conditions per place. [2022-12-12 19:59:51,620 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 4354 selfloop transitions, 65 changer transitions 40/4459 dead transitions. [2022-12-12 19:59:51,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 4459 transitions, 393394 flow [2022-12-12 19:59:51,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 19:59:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 19:59:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 92 transitions. [2022-12-12 19:59:51,621 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.23958333333333334 [2022-12-12 19:59:51,621 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 417 predicate places. [2022-12-12 19:59:51,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 465 places, 4459 transitions, 393394 flow [2022-12-12 19:59:51,917 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 463 places, 4419 transitions, 389874 flow [2022-12-12 19:59:51,917 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 4419 transitions, 389874 flow [2022-12-12 19:59:51,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:59:51,917 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:59:51,918 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] [2022-12-12 19:59:51,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-12 19:59:51,918 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 19:59:51,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:59:51,918 INFO L85 PathProgramCache]: Analyzing trace with hash -856756494, now seen corresponding path program 44 times [2022-12-12 19:59:51,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:59:51,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470578960] [2022-12-12 19:59:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:59:51,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:59:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:59:52,086 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 19:59:52,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:59:52,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470578960] [2022-12-12 19:59:52,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470578960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:59:52,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:59:52,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 19:59:52,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396461537] [2022-12-12 19:59:52,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:59:52,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 19:59:52,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:59:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 19:59:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-12-12 19:59:52,088 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 19:59:52,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 4419 transitions, 389874 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:59:52,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:59:52,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 19:59:52,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:00:22,224 INFO L130 PetriNetUnfolder]: 8627/15506 cut-off events. [2022-12-12 20:00:22,224 INFO L131 PetriNetUnfolder]: For 1071/1071 co-relation queries the response was YES. [2022-12-12 20:00:22,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698861 conditions, 15506 events. 8627/15506 cut-off events. For 1071/1071 co-relation queries the response was YES. Maximal size of possible extension queue 1377. Compared 129525 event pairs, 50 based on Foata normal form. 6/15512 useless extension candidates. Maximal degree in co-relation 690996. Up to 15496 conditions per place. [2022-12-12 20:00:22,418 INFO L137 encePairwiseOnDemand]: 20/32 looper letters, 2773 selfloop transitions, 1638 changer transitions 8/4419 dead transitions. [2022-12-12 20:00:22,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 4419 transitions, 398712 flow [2022-12-12 20:00:22,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 20:00:22,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 20:00:22,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 159 transitions. [2022-12-12 20:00:22,419 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.38221153846153844 [2022-12-12 20:00:22,419 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 427 predicate places. [2022-12-12 20:00:22,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 475 places, 4419 transitions, 398712 flow [2022-12-12 20:00:22,703 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 475 places, 4411 transitions, 397992 flow [2022-12-12 20:00:22,703 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 4411 transitions, 397992 flow [2022-12-12 20:00:22,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:00:22,703 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:00:22,704 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] [2022-12-12 20:00:22,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-12 20:00:22,704 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 20:00:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:00:22,705 INFO L85 PathProgramCache]: Analyzing trace with hash -831878734, now seen corresponding path program 45 times [2022-12-12 20:00:22,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:00:22,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569476070] [2022-12-12 20:00:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:00:22,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:00:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:00:22,905 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 20:00:22,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:00:22,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569476070] [2022-12-12 20:00:22,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569476070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 20:00:22,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 20:00:22,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 20:00:22,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281459610] [2022-12-12 20:00:22,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:00:22,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 20:00:22,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:00:22,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 20:00:22,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-12 20:00:22,906 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 20:00:22,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 4411 transitions, 397992 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:00:22,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:00:22,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 20:00:22,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:00:52,800 INFO L130 PetriNetUnfolder]: 8610/15479 cut-off events. [2022-12-12 20:00:52,800 INFO L131 PetriNetUnfolder]: For 1071/1071 co-relation queries the response was YES. [2022-12-12 20:00:52,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713126 conditions, 15479 events. 8610/15479 cut-off events. For 1071/1071 co-relation queries the response was YES. Maximal size of possible extension queue 1369. Compared 129120 event pairs, 54 based on Foata normal form. 6/15485 useless extension candidates. Maximal degree in co-relation 705088. Up to 15469 conditions per place. [2022-12-12 20:00:53,139 INFO L137 encePairwiseOnDemand]: 21/32 looper letters, 4302 selfloop transitions, 55 changer transitions 54/4411 dead transitions. [2022-12-12 20:00:53,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 4411 transitions, 406814 flow [2022-12-12 20:00:53,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 20:00:53,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 20:00:53,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 96 transitions. [2022-12-12 20:00:53,141 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.23076923076923078 [2022-12-12 20:00:53,141 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 439 predicate places. [2022-12-12 20:00:53,141 INFO L82 GeneralOperation]: Start removeDead. Operand has 487 places, 4411 transitions, 406814 flow [2022-12-12 20:00:53,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 467 places, 4357 transitions, 401840 flow [2022-12-12 20:00:53,451 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 4357 transitions, 401840 flow [2022-12-12 20:00:53,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:00:53,451 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:00:53,451 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] [2022-12-12 20:00:53,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-12 20:00:53,451 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 20:00:53,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:00:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2068352460, now seen corresponding path program 46 times [2022-12-12 20:00:53,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:00:53,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346803233] [2022-12-12 20:00:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:00:53,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:00:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:00:53,595 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 20:00:53,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:00:53,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346803233] [2022-12-12 20:00:53,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346803233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 20:00:53,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 20:00:53,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 20:00:53,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735795826] [2022-12-12 20:00:53,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:00:53,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 20:00:53,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:00:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 20:00:53,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-12 20:00:53,597 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 20:00:53,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 4357 transitions, 401840 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:00:53,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:00:53,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 20:00:53,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:01:25,169 INFO L130 PetriNetUnfolder]: 8571/15382 cut-off events. [2022-12-12 20:01:25,169 INFO L131 PetriNetUnfolder]: For 1063/1063 co-relation queries the response was YES. [2022-12-12 20:01:25,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724043 conditions, 15382 events. 8571/15382 cut-off events. For 1063/1063 co-relation queries the response was YES. Maximal size of possible extension queue 1351. Compared 127875 event pairs, 26 based on Foata normal form. 4/15386 useless extension candidates. Maximal degree in co-relation 715832. Up to 15372 conditions per place. [2022-12-12 20:01:25,377 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 4310 selfloop transitions, 38 changer transitions 12/4360 dead transitions. [2022-12-12 20:01:25,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 4360 transitions, 410836 flow [2022-12-12 20:01:25,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 20:01:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 20:01:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 103 transitions. [2022-12-12 20:01:25,378 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.16940789473684212 [2022-12-12 20:01:25,378 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 437 predicate places. [2022-12-12 20:01:25,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 485 places, 4360 transitions, 410836 flow [2022-12-12 20:01:25,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 483 places, 4348 transitions, 409708 flow [2022-12-12 20:01:25,681 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 4348 transitions, 409708 flow [2022-12-12 20:01:25,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:01:25,681 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:01:25,681 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] [2022-12-12 20:01:25,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-12 20:01:25,681 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 20:01:25,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:01:25,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2146918436, now seen corresponding path program 47 times [2022-12-12 20:01:25,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:01:25,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35165395] [2022-12-12 20:01:25,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:01:25,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:01:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:01:25,873 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 20:01:25,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:01:25,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35165395] [2022-12-12 20:01:25,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35165395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 20:01:25,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 20:01:25,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 20:01:25,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076552772] [2022-12-12 20:01:25,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:01:25,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 20:01:25,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:01:25,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 20:01:25,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-12 20:01:25,874 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 20:01:25,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 4348 transitions, 409708 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:01:25,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:01:25,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 20:01:25,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:01:58,180 INFO L130 PetriNetUnfolder]: 8561/15360 cut-off events. [2022-12-12 20:01:58,180 INFO L131 PetriNetUnfolder]: For 1065/1065 co-relation queries the response was YES. [2022-12-12 20:01:58,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738370 conditions, 15360 events. 8561/15360 cut-off events. For 1065/1065 co-relation queries the response was YES. Maximal size of possible extension queue 1354. Compared 127643 event pairs, 38 based on Foata normal form. 2/15362 useless extension candidates. Maximal degree in co-relation 729986. Up to 15350 conditions per place. [2022-12-12 20:01:58,400 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 4309 selfloop transitions, 25 changer transitions 16/4350 dead transitions. [2022-12-12 20:01:58,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 4350 transitions, 418596 flow [2022-12-12 20:01:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 20:01:58,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 20:01:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 91 transitions. [2022-12-12 20:01:58,401 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.177734375 [2022-12-12 20:01:58,401 INFO L295 CegarLoopForPetriNet]: 48 programPoint places, 450 predicate places. [2022-12-12 20:01:58,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 498 places, 4350 transitions, 418596 flow [2022-12-12 20:01:58,808 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 489 places, 4334 transitions, 417060 flow [2022-12-12 20:01:58,809 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 4334 transitions, 417060 flow [2022-12-12 20:01:58,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:01:58,809 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:01:58,809 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] [2022-12-12 20:01:58,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-12 20:01:58,809 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 20:01:58,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:01:58,810 INFO L85 PathProgramCache]: Analyzing trace with hash 574465092, now seen corresponding path program 48 times [2022-12-12 20:01:58,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:01:58,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866820651] [2022-12-12 20:01:58,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:01:58,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:01:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:01:58,942 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 20:01:58,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:01:58,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866820651] [2022-12-12 20:01:58,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866820651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 20:01:58,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 20:01:58,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 20:01:58,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643588888] [2022-12-12 20:01:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:01:58,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 20:01:58,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:01:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 20:01:58,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-12 20:01:58,943 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-12 20:01:58,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 4334 transitions, 417060 flow. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:01:58,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:01:58,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-12 20:01:58,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-12 20:02:10,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 20:02:10,213 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-12 20:02:10,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-12 20:02:10,213 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 0/32 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180680 conditions, 3677 events (2024/3676 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 30985 event pairs, 3 based on Foata normal form. 0/4821 useless extension candidates. Maximal degree in co-relation 180526. Up to 3666 conditions per place.). [2022-12-12 20:02:10,214 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2022-12-12 20:02:10,214 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-12 20:02:10,214 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-12 20:02:10,215 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-12 20:02:10,215 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2022-12-12 20:02:10,215 INFO L445 BasicCegarLoop]: Path program histogram: [48] [2022-12-12 20:02:10,217 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 20:02:10,217 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 20:02:10,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 08:02:10 BasicIcfg [2022-12-12 20:02:10,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 20:02:10,219 INFO L158 Benchmark]: Toolchain (without parser) took 826954.18ms. Allocated memory was 206.6MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 182.8MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2022-12-12 20:02:10,219 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory is still 183.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 20:02:10,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.36ms. Allocated memory is still 206.6MB. Free memory was 182.3MB in the beginning and 166.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-12 20:02:10,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.15ms. Allocated memory is still 206.6MB. Free memory was 166.5MB in the beginning and 163.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 20:02:10,219 INFO L158 Benchmark]: Boogie Preprocessor took 31.46ms. Allocated memory is still 206.6MB. Free memory was 163.9MB in the beginning and 162.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 20:02:10,219 INFO L158 Benchmark]: RCFGBuilder took 520.64ms. Allocated memory is still 206.6MB. Free memory was 162.3MB in the beginning and 136.1MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-12-12 20:02:10,220 INFO L158 Benchmark]: TraceAbstraction took 826124.39ms. Allocated memory was 206.6MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 135.1MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2022-12-12 20:02:10,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory is still 183.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.36ms. Allocated memory is still 206.6MB. Free memory was 182.3MB in the beginning and 166.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.15ms. Allocated memory is still 206.6MB. Free memory was 166.5MB in the beginning and 163.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.46ms. Allocated memory is still 206.6MB. Free memory was 163.9MB in the beginning and 162.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 520.64ms. Allocated memory is still 206.6MB. Free memory was 162.3MB in the beginning and 136.1MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 826124.39ms. Allocated memory was 206.6MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 135.1MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5s, 153 PlacesBefore, 48 PlacesAfterwards, 139 TransitionsBefore, 32 TransitionsAfterwards, 2082 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 63 TrivialYvCompositions, 42 ConcurrentYvCompositions, 2 ChoiceCompositions, 107 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1151, independent: 1115, independent conditional: 1115, independent unconditional: 0, dependent: 36, dependent conditional: 36, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1151, independent: 1115, independent conditional: 0, independent unconditional: 1115, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1151, independent: 1115, independent conditional: 0, independent unconditional: 1115, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1151, independent: 1115, independent conditional: 0, independent unconditional: 1115, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1106, independent: 1076, independent conditional: 0, independent unconditional: 1076, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1106, independent: 1013, independent conditional: 0, independent unconditional: 1013, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 93, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 224, independent: 131, independent conditional: 0, independent unconditional: 131, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1151, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 1106, unknown conditional: 0, unknown unconditional: 1106] , Statistics on independence cache: Total cache size (in pairs): 1572, Positive cache size: 1542, Positive conditional cache size: 0, Positive unconditional cache size: 1542, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 168]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 0/32 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180680 conditions, 3677 events (2024/3676 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 30985 event pairs, 3 based on Foata normal form. 0/4821 useless extension candidates. Maximal degree in co-relation 180526. Up to 3666 conditions per place.). - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 0/32 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180680 conditions, 3677 events (2024/3676 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 30985 event pairs, 3 based on Foata normal form. 0/4821 useless extension candidates. Maximal degree in co-relation 180526. Up to 3666 conditions per place.). - TimeoutResultAtElement [Line: 158]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 0/32 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180680 conditions, 3677 events (2024/3676 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 30985 event pairs, 3 based on Foata normal form. 0/4821 useless extension candidates. Maximal degree in co-relation 180526. Up to 3666 conditions per place.). - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 0/32 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180680 conditions, 3677 events (2024/3676 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 30985 event pairs, 3 based on Foata normal form. 0/4821 useless extension candidates. Maximal degree in co-relation 180526. Up to 3666 conditions per place.). - TimeoutResultAtElement [Line: 160]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 0/32 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180680 conditions, 3677 events (2024/3676 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 30985 event pairs, 3 based on Foata normal form. 0/4821 useless extension candidates. Maximal degree in co-relation 180526. Up to 3666 conditions per place.). - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 0/32 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180680 conditions, 3677 events (2024/3676 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 30985 event pairs, 3 based on Foata normal form. 0/4821 useless extension candidates. Maximal degree in co-relation 180526. Up to 3666 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 198 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 11.2s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 826.0s, OverallIterations: 48, TraceHistogramMax: 1, PathProgramHistogramMax: 48, EmptinessCheckTime: 0.0s, AutomataDifference: 798.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3550 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3550 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 8.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1654 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21952 IncrementalHoareTripleChecker+Invalid, 23606 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1654 mSolverCounterUnsat, 0 mSDtfsCounter, 21952 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 649 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 563 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=417060occurred in iteration=47, InterpolantAutomatonStates: 573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.2s AutomataMinimizationTime, 47 MinimizatonAttempts, 191345 StatesRemovedByMinimization, 47 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 1536 NumberOfCodeBlocks, 1536 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1488 ConstructedInterpolants, 0 QuantifiedInterpolants, 6160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 48 InterpolantComputations, 48 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown