/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 18:09:35,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 18:09:35,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 18:09:35,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 18:09:35,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 18:09:35,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 18:09:35,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 18:09:35,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 18:09:35,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 18:09:35,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 18:09:35,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 18:09:35,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 18:09:35,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 18:09:35,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 18:09:35,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 18:09:35,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 18:09:35,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 18:09:35,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 18:09:35,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 18:09:35,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 18:09:35,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 18:09:35,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 18:09:35,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 18:09:35,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 18:09:35,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 18:09:35,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 18:09:35,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 18:09:35,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 18:09:35,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 18:09:35,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 18:09:35,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 18:09:35,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 18:09:35,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 18:09:35,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 18:09:35,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 18:09:35,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 18:09:35,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 18:09:35,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 18:09:35,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 18:09:35,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 18:09:35,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 18:09:35,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 18:09:35,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 18:09:35,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 18:09:35,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 18:09:35,904 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 18:09:35,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 18:09:35,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 18:09:35,905 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 18:09:35,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 18:09:35,905 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 18:09:35,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 18:09:35,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 18:09:35,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 18:09:35,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 18:09:35,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 18:09:35,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 18:09:35,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 18:09:35,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 18:09:35,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 18:09:35,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 18:09:35,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 18:09:35,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 18:09:35,907 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 18:09:35,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 18:09:35,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 18:09:36,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 18:09:36,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 18:09:36,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 18:09:36,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 18:09:36,146 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 18:09:36,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-12-06 18:09:36,990 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 18:09:37,160 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 18:09:37,160 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-12-06 18:09:37,166 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a8f9d4c/e646394dec6a4f529877c7038faa4a4d/FLAG65440aad7 [2022-12-06 18:09:37,176 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a8f9d4c/e646394dec6a4f529877c7038faa4a4d [2022-12-06 18:09:37,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 18:09:37,179 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 18:09:37,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 18:09:37,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 18:09:37,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 18:09:37,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9d5f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37, skipping insertion in model container [2022-12-06 18:09:37,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 18:09:37,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 18:09:37,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,378 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/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-12-06 18:09:37,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 18:09:37,394 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 18:09:37,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:09:37,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:09:37,432 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/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-12-06 18:09:37,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 18:09:37,448 INFO L208 MainTranslator]: Completed translation [2022-12-06 18:09:37,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37 WrapperNode [2022-12-06 18:09:37,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 18:09:37,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 18:09:37,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 18:09:37,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 18:09:37,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,506 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2022-12-06 18:09:37,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 18:09:37,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 18:09:37,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 18:09:37,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 18:09:37,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,545 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 18:09:37,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 18:09:37,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 18:09:37,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 18:09:37,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (1/1) ... [2022-12-06 18:09:37,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 18:09:37,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:09:37,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 18:09:37,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 18:09:37,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 18:09:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 18:09:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 18:09:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 18:09:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 18:09:37,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 18:09:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 18:09:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 18:09:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 18:09:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 18:09:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 18:09:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 18:09:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 18:09:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 18:09:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 18:09:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 18:09:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 18:09:37,615 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 18:09:37,744 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 18:09:37,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 18:09:38,117 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 18:09:38,211 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 18:09:38,211 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-06 18:09:38,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:09:38 BoogieIcfgContainer [2022-12-06 18:09:38,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 18:09:38,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 18:09:38,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 18:09:38,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 18:09:38,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:09:37" (1/3) ... [2022-12-06 18:09:38,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c21c0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:09:38, skipping insertion in model container [2022-12-06 18:09:38,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:09:37" (2/3) ... [2022-12-06 18:09:38,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c21c0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:09:38, skipping insertion in model container [2022-12-06 18:09:38,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:09:38" (3/3) ... [2022-12-06 18:09:38,222 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-12-06 18:09:38,235 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 18:09:38,236 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 18:09:38,236 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 18:09:38,295 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 18:09:38,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 206 transitions, 436 flow [2022-12-06 18:09:38,375 INFO L130 PetriNetUnfolder]: 18/203 cut-off events. [2022-12-06 18:09:38,376 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 18:09:38,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 203 events. 18/203 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 122 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 165. Up to 3 conditions per place. [2022-12-06 18:09:38,380 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 206 transitions, 436 flow [2022-12-06 18:09:38,384 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 193 transitions, 404 flow [2022-12-06 18:09:38,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 18:09:38,395 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;@d3e0761, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 18:09:38,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 18:09:38,421 INFO L130 PetriNetUnfolder]: 18/192 cut-off events. [2022-12-06 18:09:38,421 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 18:09:38,422 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:38,422 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:38,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1824186022, now seen corresponding path program 1 times [2022-12-06 18:09:38,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:38,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962687729] [2022-12-06 18:09:38,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:38,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:09:38,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:38,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962687729] [2022-12-06 18:09:38,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962687729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:38,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:38,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 18:09:38,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057396368] [2022-12-06 18:09:38,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:38,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 18:09:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:38,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 18:09:38,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 18:09:38,706 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 206 [2022-12-06 18:09:38,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 193 transitions, 404 flow. Second operand has 2 states, 2 states have (on average 185.5) internal successors, (371), 2 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:38,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:38,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 206 [2022-12-06 18:09:38,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:38,804 INFO L130 PetriNetUnfolder]: 71/384 cut-off events. [2022-12-06 18:09:38,805 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-12-06 18:09:38,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 384 events. 71/384 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1178 event pairs, 38 based on Foata normal form. 60/403 useless extension candidates. Maximal degree in co-relation 353. Up to 106 conditions per place. [2022-12-06 18:09:38,809 INFO L137 encePairwiseOnDemand]: 193/206 looper letters, 11 selfloop transitions, 0 changer transitions 6/180 dead transitions. [2022-12-06 18:09:38,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 180 transitions, 400 flow [2022-12-06 18:09:38,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 18:09:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 18:09:38,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 386 transitions. [2022-12-06 18:09:38,818 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9368932038834952 [2022-12-06 18:09:38,821 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1 predicate places. [2022-12-06 18:09:38,821 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 180 transitions, 400 flow [2022-12-06 18:09:38,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 185.5) internal successors, (371), 2 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:38,822 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:38,822 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:38,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 18:09:38,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:38,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:38,823 INFO L85 PathProgramCache]: Analyzing trace with hash 19794773, now seen corresponding path program 1 times [2022-12-06 18:09:38,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:38,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404558790] [2022-12-06 18:09:38,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:38,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:09:39,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:39,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404558790] [2022-12-06 18:09:39,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404558790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:39,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:39,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 18:09:39,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828299681] [2022-12-06 18:09:39,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:39,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 18:09:39,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:39,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 18:09:39,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 18:09:39,250 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 206 [2022-12-06 18:09:39,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 180 transitions, 400 flow. Second operand has 6 states, 6 states have (on average 159.66666666666666) internal successors, (958), 6 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:39,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:39,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 206 [2022-12-06 18:09:39,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:39,436 INFO L130 PetriNetUnfolder]: 73/466 cut-off events. [2022-12-06 18:09:39,436 INFO L131 PetriNetUnfolder]: For 118/168 co-relation queries the response was YES. [2022-12-06 18:09:39,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 466 events. 73/466 cut-off events. For 118/168 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1462 event pairs, 38 based on Foata normal form. 11/429 useless extension candidates. Maximal degree in co-relation 448. Up to 118 conditions per place. [2022-12-06 18:09:39,443 INFO L137 encePairwiseOnDemand]: 194/206 looper letters, 33 selfloop transitions, 8 changer transitions 23/201 dead transitions. [2022-12-06 18:09:39,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 201 transitions, 575 flow [2022-12-06 18:09:39,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 18:09:39,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 18:09:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1456 transitions. [2022-12-06 18:09:39,451 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.785329018338727 [2022-12-06 18:09:39,452 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 9 predicate places. [2022-12-06 18:09:39,453 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 201 transitions, 575 flow [2022-12-06 18:09:39,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.66666666666666) internal successors, (958), 6 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:39,453 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:39,454 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:39,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 18:09:39,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:39,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:39,455 INFO L85 PathProgramCache]: Analyzing trace with hash 255854299, now seen corresponding path program 1 times [2022-12-06 18:09:39,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:39,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368253518] [2022-12-06 18:09:39,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:39,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:09:39,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:39,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368253518] [2022-12-06 18:09:39,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368253518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:39,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:39,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 18:09:39,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583179874] [2022-12-06 18:09:39,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:39,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 18:09:39,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:39,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 18:09:39,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 18:09:39,721 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 206 [2022-12-06 18:09:39,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 201 transitions, 575 flow. Second operand has 6 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:39,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:39,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 206 [2022-12-06 18:09:39,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:39,875 INFO L130 PetriNetUnfolder]: 94/624 cut-off events. [2022-12-06 18:09:39,875 INFO L131 PetriNetUnfolder]: For 399/567 co-relation queries the response was YES. [2022-12-06 18:09:39,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 624 events. 94/624 cut-off events. For 399/567 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2479 event pairs, 50 based on Foata normal form. 14/572 useless extension candidates. Maximal degree in co-relation 656. Up to 160 conditions per place. [2022-12-06 18:09:39,878 INFO L137 encePairwiseOnDemand]: 197/206 looper letters, 39 selfloop transitions, 6 changer transitions 39/221 dead transitions. [2022-12-06 18:09:39,878 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 221 transitions, 852 flow [2022-12-06 18:09:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 18:09:39,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 18:09:39,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1136 transitions. [2022-12-06 18:09:39,880 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7877947295423023 [2022-12-06 18:09:39,881 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 15 predicate places. [2022-12-06 18:09:39,881 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 221 transitions, 852 flow [2022-12-06 18:09:39,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:39,882 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:39,882 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:39,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 18:09:39,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:39,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:39,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1564487749, now seen corresponding path program 1 times [2022-12-06 18:09:39,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:39,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102158559] [2022-12-06 18:09:39,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:39,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:40,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:40,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102158559] [2022-12-06 18:09:40,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102158559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:40,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:40,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 18:09:40,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978971396] [2022-12-06 18:09:40,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:40,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 18:09:40,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:40,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 18:09:40,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 18:09:40,112 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 206 [2022-12-06 18:09:40,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 221 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:40,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:40,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 206 [2022-12-06 18:09:40,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:40,200 INFO L130 PetriNetUnfolder]: 104/650 cut-off events. [2022-12-06 18:09:40,200 INFO L131 PetriNetUnfolder]: For 650/878 co-relation queries the response was YES. [2022-12-06 18:09:40,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1499 conditions, 650 events. 104/650 cut-off events. For 650/878 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2548 event pairs, 29 based on Foata normal form. 7/595 useless extension candidates. Maximal degree in co-relation 748. Up to 176 conditions per place. [2022-12-06 18:09:40,205 INFO L137 encePairwiseOnDemand]: 203/206 looper letters, 19 selfloop transitions, 2 changer transitions 38/226 dead transitions. [2022-12-06 18:09:40,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 226 transitions, 966 flow [2022-12-06 18:09:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 18:09:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 18:09:40,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2022-12-06 18:09:40,206 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8948220064724919 [2022-12-06 18:09:40,208 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 17 predicate places. [2022-12-06 18:09:40,208 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 226 transitions, 966 flow [2022-12-06 18:09:40,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:40,208 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:40,208 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:40,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 18:09:40,209 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:40,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1155176289, now seen corresponding path program 2 times [2022-12-06 18:09:40,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:40,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768980114] [2022-12-06 18:09:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:40,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:41,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:41,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768980114] [2022-12-06 18:09:41,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768980114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:41,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:41,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:41,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849552284] [2022-12-06 18:09:41,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:41,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:41,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:41,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:41,543 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:41,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 226 transitions, 966 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:41,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:41,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:41,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:42,672 INFO L130 PetriNetUnfolder]: 1486/3594 cut-off events. [2022-12-06 18:09:42,672 INFO L131 PetriNetUnfolder]: For 8547/9215 co-relation queries the response was YES. [2022-12-06 18:09:42,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10695 conditions, 3594 events. 1486/3594 cut-off events. For 8547/9215 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 25965 event pairs, 194 based on Foata normal form. 3/3278 useless extension candidates. Maximal degree in co-relation 7109. Up to 1163 conditions per place. [2022-12-06 18:09:42,691 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 155 selfloop transitions, 41 changer transitions 69/390 dead transitions. [2022-12-06 18:09:42,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 390 transitions, 2682 flow [2022-12-06 18:09:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:09:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:09:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3162 transitions. [2022-12-06 18:09:42,696 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6673701983959477 [2022-12-06 18:09:42,697 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 39 predicate places. [2022-12-06 18:09:42,697 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 390 transitions, 2682 flow [2022-12-06 18:09:42,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:42,698 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:42,698 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:42,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 18:09:42,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:42,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:42,699 INFO L85 PathProgramCache]: Analyzing trace with hash 637031577, now seen corresponding path program 3 times [2022-12-06 18:09:42,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:42,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94472477] [2022-12-06 18:09:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:42,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:42,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:42,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94472477] [2022-12-06 18:09:42,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94472477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:42,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:42,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 18:09:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664350526] [2022-12-06 18:09:42,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:42,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 18:09:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:42,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 18:09:42,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 18:09:42,859 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 206 [2022-12-06 18:09:42,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 390 transitions, 2682 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:42,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:42,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 206 [2022-12-06 18:09:42,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:43,161 INFO L130 PetriNetUnfolder]: 1082/2725 cut-off events. [2022-12-06 18:09:43,161 INFO L131 PetriNetUnfolder]: For 8822/9303 co-relation queries the response was YES. [2022-12-06 18:09:43,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8983 conditions, 2725 events. 1082/2725 cut-off events. For 8822/9303 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 18293 event pairs, 274 based on Foata normal form. 47/2575 useless extension candidates. Maximal degree in co-relation 5344. Up to 1163 conditions per place. [2022-12-06 18:09:43,178 INFO L137 encePairwiseOnDemand]: 200/206 looper letters, 78 selfloop transitions, 6 changer transitions 72/376 dead transitions. [2022-12-06 18:09:43,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 376 transitions, 2861 flow [2022-12-06 18:09:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 18:09:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 18:09:43,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2022-12-06 18:09:43,180 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8818770226537217 [2022-12-06 18:09:43,180 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 41 predicate places. [2022-12-06 18:09:43,180 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 376 transitions, 2861 flow [2022-12-06 18:09:43,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:43,181 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:43,181 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:43,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 18:09:43,181 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:43,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1983977955, now seen corresponding path program 4 times [2022-12-06 18:09:43,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:43,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466048789] [2022-12-06 18:09:43,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:43,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:44,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:44,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466048789] [2022-12-06 18:09:44,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466048789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:44,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:44,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:44,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96477835] [2022-12-06 18:09:44,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:44,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:44,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:44,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:44,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:44,274 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:44,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 376 transitions, 2861 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:44,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:44,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:44,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:45,180 INFO L130 PetriNetUnfolder]: 1169/3062 cut-off events. [2022-12-06 18:09:45,180 INFO L131 PetriNetUnfolder]: For 12803/13998 co-relation queries the response was YES. [2022-12-06 18:09:45,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11991 conditions, 3062 events. 1169/3062 cut-off events. For 12803/13998 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 22092 event pairs, 349 based on Foata normal form. 57/2869 useless extension candidates. Maximal degree in co-relation 6992. Up to 1475 conditions per place. [2022-12-06 18:09:45,199 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 186 selfloop transitions, 55 changer transitions 88/454 dead transitions. [2022-12-06 18:09:45,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 454 transitions, 4280 flow [2022-12-06 18:09:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:09:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:09:45,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3003 transitions. [2022-12-06 18:09:45,205 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.662621359223301 [2022-12-06 18:09:45,205 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 62 predicate places. [2022-12-06 18:09:45,205 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 454 transitions, 4280 flow [2022-12-06 18:09:45,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:45,207 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:45,207 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:45,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 18:09:45,207 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:45,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:45,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1459880219, now seen corresponding path program 5 times [2022-12-06 18:09:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:45,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042531393] [2022-12-06 18:09:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:45,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:46,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:46,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042531393] [2022-12-06 18:09:46,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042531393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:46,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:46,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:46,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89374947] [2022-12-06 18:09:46,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:46,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:46,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:46,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:46,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:46,101 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:46,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 454 transitions, 4280 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:46,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:46,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:46,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:47,079 INFO L130 PetriNetUnfolder]: 1222/3265 cut-off events. [2022-12-06 18:09:47,080 INFO L131 PetriNetUnfolder]: For 16318/18428 co-relation queries the response was YES. [2022-12-06 18:09:47,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14879 conditions, 3265 events. 1222/3265 cut-off events. For 16318/18428 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 24188 event pairs, 348 based on Foata normal form. 126/3130 useless extension candidates. Maximal degree in co-relation 8882. Up to 1585 conditions per place. [2022-12-06 18:09:47,125 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 217 selfloop transitions, 56 changer transitions 97/495 dead transitions. [2022-12-06 18:09:47,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 495 transitions, 5475 flow [2022-12-06 18:09:47,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 18:09:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 18:09:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3270 transitions. [2022-12-06 18:09:47,131 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6614077669902912 [2022-12-06 18:09:47,131 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 85 predicate places. [2022-12-06 18:09:47,131 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 495 transitions, 5475 flow [2022-12-06 18:09:47,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:47,132 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:47,132 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:47,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 18:09:47,133 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:47,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:47,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1296074429, now seen corresponding path program 6 times [2022-12-06 18:09:47,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:47,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46933986] [2022-12-06 18:09:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:47,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:48,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:48,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:48,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46933986] [2022-12-06 18:09:48,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46933986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:48,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:48,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:48,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446663167] [2022-12-06 18:09:48,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:48,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:48,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:48,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:48,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:48,040 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:48,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 495 transitions, 5475 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:48,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:48,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:48,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:49,090 INFO L130 PetriNetUnfolder]: 1282/3390 cut-off events. [2022-12-06 18:09:49,091 INFO L131 PetriNetUnfolder]: For 19478/21324 co-relation queries the response was YES. [2022-12-06 18:09:49,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17900 conditions, 3390 events. 1282/3390 cut-off events. For 19478/21324 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 25123 event pairs, 364 based on Foata normal form. 129/3256 useless extension candidates. Maximal degree in co-relation 10563. Up to 1691 conditions per place. [2022-12-06 18:09:49,110 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 240 selfloop transitions, 58 changer transitions 103/526 dead transitions. [2022-12-06 18:09:49,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 526 transitions, 6708 flow [2022-12-06 18:09:49,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:09:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:09:49,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3140 transitions. [2022-12-06 18:09:49,115 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6627268889826932 [2022-12-06 18:09:49,115 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 107 predicate places. [2022-12-06 18:09:49,115 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 526 transitions, 6708 flow [2022-12-06 18:09:49,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:49,116 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:49,116 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:49,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 18:09:49,116 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:49,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:49,117 INFO L85 PathProgramCache]: Analyzing trace with hash -502168631, now seen corresponding path program 7 times [2022-12-06 18:09:49,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:49,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235521174] [2022-12-06 18:09:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:49,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:49,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:49,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235521174] [2022-12-06 18:09:49,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235521174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:49,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:49,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:49,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769302141] [2022-12-06 18:09:49,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:49,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:49,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:49,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:49,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:49,904 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:49,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 526 transitions, 6708 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:49,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:49,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:49,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:50,802 INFO L130 PetriNetUnfolder]: 1332/3572 cut-off events. [2022-12-06 18:09:50,802 INFO L131 PetriNetUnfolder]: For 25126/27382 co-relation queries the response was YES. [2022-12-06 18:09:50,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21028 conditions, 3572 events. 1332/3572 cut-off events. For 25126/27382 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 27622 event pairs, 311 based on Foata normal form. 156/3449 useless extension candidates. Maximal degree in co-relation 15229. Up to 1780 conditions per place. [2022-12-06 18:09:50,829 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 263 selfloop transitions, 59 changer transitions 109/556 dead transitions. [2022-12-06 18:09:50,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 556 transitions, 8043 flow [2022-12-06 18:09:50,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:09:50,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:09:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3138 transitions. [2022-12-06 18:09:50,834 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6623047699451245 [2022-12-06 18:09:50,835 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 129 predicate places. [2022-12-06 18:09:50,835 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 556 transitions, 8043 flow [2022-12-06 18:09:50,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:50,836 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:50,836 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:50,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 18:09:50,837 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:09:50,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:50,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1309908135, now seen corresponding path program 8 times [2022-12-06 18:09:50,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:50,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096951256] [2022-12-06 18:09:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:51,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:51,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:51,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096951256] [2022-12-06 18:09:51,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096951256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:51,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:51,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:51,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833420516] [2022-12-06 18:09:51,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:51,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:51,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:51,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:51,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:51,694 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:51,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 556 transitions, 8043 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:51,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:51,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:51,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:52,705 INFO L130 PetriNetUnfolder]: 1347/3629 cut-off events. [2022-12-06 18:09:52,705 INFO L131 PetriNetUnfolder]: For 29998/32206 co-relation queries the response was YES. [2022-12-06 18:09:52,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23704 conditions, 3629 events. 1347/3629 cut-off events. For 29998/32206 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 28005 event pairs, 259 based on Foata normal form. 169/3523 useless extension candidates. Maximal degree in co-relation 17676. Up to 1814 conditions per place. [2022-12-06 18:09:52,731 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 279 selfloop transitions, 57 changer transitions 115/576 dead transitions. [2022-12-06 18:09:52,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 576 transitions, 9259 flow [2022-12-06 18:09:52,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:09:52,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:09:52,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2997 transitions. [2022-12-06 18:09:52,734 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.661297440423654 [2022-12-06 18:09:52,734 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 150 predicate places. [2022-12-06 18:09:52,735 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 576 transitions, 9259 flow [2022-12-06 18:09:52,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:52,737 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:52,737 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:52,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 18:09:52,737 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 1 more)] === [2022-12-06 18:09:52,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1736147721, now seen corresponding path program 9 times [2022-12-06 18:09:52,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:52,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169699917] [2022-12-06 18:09:52,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:52,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:53,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:53,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:53,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169699917] [2022-12-06 18:09:53,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169699917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:53,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:53,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:53,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409350172] [2022-12-06 18:09:53,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:53,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:53,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:53,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:53,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:53,433 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:53,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 576 transitions, 9259 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:53,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:53,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:53,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:54,368 INFO L130 PetriNetUnfolder]: 1357/3622 cut-off events. [2022-12-06 18:09:54,368 INFO L131 PetriNetUnfolder]: For 33302/35883 co-relation queries the response was YES. [2022-12-06 18:09:54,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26307 conditions, 3622 events. 1357/3622 cut-off events. For 33302/35883 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 27965 event pairs, 293 based on Foata normal form. 112/3460 useless extension candidates. Maximal degree in co-relation 16223. Up to 1921 conditions per place. [2022-12-06 18:09:54,397 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 301 selfloop transitions, 48 changer transitions 121/595 dead transitions. [2022-12-06 18:09:54,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 595 transitions, 10513 flow [2022-12-06 18:09:54,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:09:54,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:09:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2853 transitions. [2022-12-06 18:09:54,402 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.659500693481276 [2022-12-06 18:09:54,403 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 170 predicate places. [2022-12-06 18:09:54,403 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 595 transitions, 10513 flow [2022-12-06 18:09:54,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:54,404 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:54,404 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:54,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 18:09:54,404 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 1 more)] === [2022-12-06 18:09:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:54,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1329795893, now seen corresponding path program 10 times [2022-12-06 18:09:54,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:54,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370225617] [2022-12-06 18:09:54,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:54,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:55,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:55,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370225617] [2022-12-06 18:09:55,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370225617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:55,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:55,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:55,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261851154] [2022-12-06 18:09:55,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:55,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:55,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:55,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:55,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:55,172 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:55,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 595 transitions, 10513 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:55,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:55,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:55,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:56,173 INFO L130 PetriNetUnfolder]: 1399/3797 cut-off events. [2022-12-06 18:09:56,173 INFO L131 PetriNetUnfolder]: For 42419/45484 co-relation queries the response was YES. [2022-12-06 18:09:56,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29816 conditions, 3797 events. 1399/3797 cut-off events. For 42419/45484 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 30077 event pairs, 220 based on Foata normal form. 141/3650 useless extension candidates. Maximal degree in co-relation 22356. Up to 2006 conditions per place. [2022-12-06 18:09:56,203 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 318 selfloop transitions, 53 changer transitions 128/624 dead transitions. [2022-12-06 18:09:56,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 624 transitions, 12092 flow [2022-12-06 18:09:56,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:09:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:09:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2997 transitions. [2022-12-06 18:09:56,207 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.661297440423654 [2022-12-06 18:09:56,207 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 191 predicate places. [2022-12-06 18:09:56,207 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 624 transitions, 12092 flow [2022-12-06 18:09:56,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:56,208 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:56,209 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:56,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 18:09:56,209 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 1 more)] === [2022-12-06 18:09:56,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:56,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1503516455, now seen corresponding path program 11 times [2022-12-06 18:09:56,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:56,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886850898] [2022-12-06 18:09:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:56,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:57,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:57,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:57,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886850898] [2022-12-06 18:09:57,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886850898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:57,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:57,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:57,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988509832] [2022-12-06 18:09:57,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:57,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:57,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:57,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:57,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:57,085 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:57,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 624 transitions, 12092 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:57,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:57,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:57,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:58,153 INFO L130 PetriNetUnfolder]: 1471/3952 cut-off events. [2022-12-06 18:09:58,153 INFO L131 PetriNetUnfolder]: For 51333/54718 co-relation queries the response was YES. [2022-12-06 18:09:58,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33945 conditions, 3952 events. 1471/3952 cut-off events. For 51333/54718 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 31587 event pairs, 235 based on Foata normal form. 147/3799 useless extension candidates. Maximal degree in co-relation 25656. Up to 2118 conditions per place. [2022-12-06 18:09:58,183 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 347 selfloop transitions, 55 changer transitions 134/661 dead transitions. [2022-12-06 18:09:58,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 661 transitions, 14043 flow [2022-12-06 18:09:58,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:09:58,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:09:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3000 transitions. [2022-12-06 18:09:58,187 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6619593998234775 [2022-12-06 18:09:58,187 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 212 predicate places. [2022-12-06 18:09:58,187 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 661 transitions, 14043 flow [2022-12-06 18:09:58,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:58,188 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:58,188 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:58,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 18:09:58,188 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 1 more)] === [2022-12-06 18:09:58,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:58,189 INFO L85 PathProgramCache]: Analyzing trace with hash -961048201, now seen corresponding path program 12 times [2022-12-06 18:09:58,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:58,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265303199] [2022-12-06 18:09:58,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:58,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:09:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:09:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:09:58,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:09:58,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265303199] [2022-12-06 18:09:58,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265303199] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:09:58,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:09:58,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:09:58,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798187858] [2022-12-06 18:09:58,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:09:58,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:09:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:09:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:09:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:09:58,948 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:09:58,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 661 transitions, 14043 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:58,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:09:58,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:09:58,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:09:59,964 INFO L130 PetriNetUnfolder]: 1527/4083 cut-off events. [2022-12-06 18:09:59,965 INFO L131 PetriNetUnfolder]: For 62499/67278 co-relation queries the response was YES. [2022-12-06 18:09:59,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37936 conditions, 4083 events. 1527/4083 cut-off events. For 62499/67278 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 32654 event pairs, 311 based on Foata normal form. 128/3891 useless extension candidates. Maximal degree in co-relation 24911. Up to 2210 conditions per place. [2022-12-06 18:09:59,994 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 372 selfloop transitions, 59 changer transitions 140/696 dead transitions. [2022-12-06 18:09:59,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 696 transitions, 16078 flow [2022-12-06 18:09:59,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:09:59,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:09:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3000 transitions. [2022-12-06 18:09:59,997 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6619593998234775 [2022-12-06 18:09:59,997 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 233 predicate places. [2022-12-06 18:09:59,997 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 696 transitions, 16078 flow [2022-12-06 18:09:59,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:09:59,998 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:09:59,998 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:09:59,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-06 18:09:59,999 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 1 more)] === [2022-12-06 18:09:59,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:09:59,999 INFO L85 PathProgramCache]: Analyzing trace with hash -372485269, now seen corresponding path program 13 times [2022-12-06 18:09:59,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:09:59,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513391987] [2022-12-06 18:09:59,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:09:59,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:00,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:00,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513391987] [2022-12-06 18:10:00,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513391987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:00,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:00,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:00,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812086269] [2022-12-06 18:10:00,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:00,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:00,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:00,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:00,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:00,743 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:00,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 696 transitions, 16078 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:00,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:00,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:00,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:01,848 INFO L130 PetriNetUnfolder]: 1578/4255 cut-off events. [2022-12-06 18:10:01,849 INFO L131 PetriNetUnfolder]: For 74191/80143 co-relation queries the response was YES. [2022-12-06 18:10:01,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42163 conditions, 4255 events. 1578/4255 cut-off events. For 74191/80143 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 34759 event pairs, 354 based on Foata normal form. 125/4048 useless extension candidates. Maximal degree in co-relation 28158. Up to 2289 conditions per place. [2022-12-06 18:10:01,881 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 398 selfloop transitions, 57 changer transitions 147/727 dead transitions. [2022-12-06 18:10:01,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 727 transitions, 18088 flow [2022-12-06 18:10:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:10:01,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:10:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3134 transitions. [2022-12-06 18:10:01,889 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6614605318699873 [2022-12-06 18:10:01,890 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 255 predicate places. [2022-12-06 18:10:01,890 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 727 transitions, 18088 flow [2022-12-06 18:10:01,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:01,891 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:01,891 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:01,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-06 18:10:01,891 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 1 more)] === [2022-12-06 18:10:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1634112131, now seen corresponding path program 14 times [2022-12-06 18:10:01,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:01,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872655635] [2022-12-06 18:10:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:01,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:02,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:02,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:02,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872655635] [2022-12-06 18:10:02,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872655635] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:02,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:02,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:02,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886208922] [2022-12-06 18:10:02,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:02,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:02,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:02,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:02,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:02,557 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:02,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 727 transitions, 18088 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:02,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:02,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:02,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:03,592 INFO L130 PetriNetUnfolder]: 1584/4363 cut-off events. [2022-12-06 18:10:03,592 INFO L131 PetriNetUnfolder]: For 85044/90477 co-relation queries the response was YES. [2022-12-06 18:10:03,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45380 conditions, 4363 events. 1584/4363 cut-off events. For 85044/90477 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 35947 event pairs, 318 based on Foata normal form. 128/4162 useless extension candidates. Maximal degree in co-relation 34584. Up to 2307 conditions per place. [2022-12-06 18:10:03,624 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 411 selfloop transitions, 52 changer transitions 153/741 dead transitions. [2022-12-06 18:10:03,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 741 transitions, 19701 flow [2022-12-06 18:10:03,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2855 transitions. [2022-12-06 18:10:03,627 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6599630143319464 [2022-12-06 18:10:03,627 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 275 predicate places. [2022-12-06 18:10:03,628 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 741 transitions, 19701 flow [2022-12-06 18:10:03,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:03,628 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:03,629 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:03,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-06 18:10:03,629 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 1 more)] === [2022-12-06 18:10:03,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:03,629 INFO L85 PathProgramCache]: Analyzing trace with hash -668053717, now seen corresponding path program 15 times [2022-12-06 18:10:03,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:03,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303772143] [2022-12-06 18:10:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:03,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:04,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:04,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303772143] [2022-12-06 18:10:04,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303772143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:04,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:04,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:04,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753324424] [2022-12-06 18:10:04,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:04,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:04,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:04,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:04,486 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:04,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 741 transitions, 19701 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:04,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:04,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:04,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:05,565 INFO L130 PetriNetUnfolder]: 1635/4479 cut-off events. [2022-12-06 18:10:05,565 INFO L131 PetriNetUnfolder]: For 95273/100656 co-relation queries the response was YES. [2022-12-06 18:10:05,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49869 conditions, 4479 events. 1635/4479 cut-off events. For 95273/100656 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 37241 event pairs, 313 based on Foata normal form. 133/4282 useless extension candidates. Maximal degree in co-relation 33627. Up to 2386 conditions per place. [2022-12-06 18:10:05,602 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 429 selfloop transitions, 58 changer transitions 160/772 dead transitions. [2022-12-06 18:10:05,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 772 transitions, 21925 flow [2022-12-06 18:10:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:10:05,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:10:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2999 transitions. [2022-12-06 18:10:05,605 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.661738746690203 [2022-12-06 18:10:05,605 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 296 predicate places. [2022-12-06 18:10:05,605 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 772 transitions, 21925 flow [2022-12-06 18:10:05,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:05,606 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:05,606 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:05,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-06 18:10:05,606 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 1 more)] === [2022-12-06 18:10:05,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:05,607 INFO L85 PathProgramCache]: Analyzing trace with hash 738204131, now seen corresponding path program 16 times [2022-12-06 18:10:05,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:05,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214154826] [2022-12-06 18:10:05,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:05,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:06,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:06,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214154826] [2022-12-06 18:10:06,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214154826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:06,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:06,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:06,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668988558] [2022-12-06 18:10:06,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:06,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:06,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:06,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:06,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:06,371 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:06,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 772 transitions, 21925 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:06,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:06,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:06,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:07,537 INFO L130 PetriNetUnfolder]: 1662/4564 cut-off events. [2022-12-06 18:10:07,537 INFO L131 PetriNetUnfolder]: For 110415/118017 co-relation queries the response was YES. [2022-12-06 18:10:07,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53690 conditions, 4564 events. 1662/4564 cut-off events. For 110415/118017 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 38271 event pairs, 381 based on Foata normal form. 140/4358 useless extension candidates. Maximal degree in co-relation 36447. Up to 2412 conditions per place. [2022-12-06 18:10:07,576 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 446 selfloop transitions, 61 changer transitions 166/798 dead transitions. [2022-12-06 18:10:07,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 798 transitions, 24094 flow [2022-12-06 18:10:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2863 transitions. [2022-12-06 18:10:07,594 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6618122977346278 [2022-12-06 18:10:07,594 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 316 predicate places. [2022-12-06 18:10:07,594 INFO L495 AbstractCegarLoop]: Abstraction has has 501 places, 798 transitions, 24094 flow [2022-12-06 18:10:07,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:07,595 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:07,595 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:07,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-06 18:10:07,595 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 1 more)] === [2022-12-06 18:10:07,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:07,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1251190839, now seen corresponding path program 17 times [2022-12-06 18:10:07,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:07,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776803938] [2022-12-06 18:10:07,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:07,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:08,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:08,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:08,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776803938] [2022-12-06 18:10:08,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776803938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:08,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:08,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:08,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952222849] [2022-12-06 18:10:08,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:08,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:08,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:08,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:08,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:08,196 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:08,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 798 transitions, 24094 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:08,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:08,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:08,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:09,504 INFO L130 PetriNetUnfolder]: 1662/4581 cut-off events. [2022-12-06 18:10:09,504 INFO L131 PetriNetUnfolder]: For 122946/129540 co-relation queries the response was YES. [2022-12-06 18:10:09,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56660 conditions, 4581 events. 1662/4581 cut-off events. For 122946/129540 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 38390 event pairs, 263 based on Foata normal form. 142/4385 useless extension candidates. Maximal degree in co-relation 43459. Up to 2411 conditions per place. [2022-12-06 18:10:09,546 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 450 selfloop transitions, 60 changer transitions 171/806 dead transitions. [2022-12-06 18:10:09,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 806 transitions, 25728 flow [2022-12-06 18:10:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2860 transitions. [2022-12-06 18:10:09,549 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6611188164586222 [2022-12-06 18:10:09,549 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 336 predicate places. [2022-12-06 18:10:09,549 INFO L495 AbstractCegarLoop]: Abstraction has has 521 places, 806 transitions, 25728 flow [2022-12-06 18:10:09,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:09,550 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:09,550 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:09,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-06 18:10:09,550 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 1 more)] === [2022-12-06 18:10:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:09,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1430002833, now seen corresponding path program 18 times [2022-12-06 18:10:09,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:09,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77084919] [2022-12-06 18:10:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:09,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:10,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:10,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77084919] [2022-12-06 18:10:10,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77084919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:10,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:10,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:10,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515889113] [2022-12-06 18:10:10,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:10,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:10,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:10,141 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:10,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 806 transitions, 25728 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:10,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:10,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:10,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:11,474 INFO L130 PetriNetUnfolder]: 1668/4549 cut-off events. [2022-12-06 18:10:11,474 INFO L131 PetriNetUnfolder]: For 132541/139476 co-relation queries the response was YES. [2022-12-06 18:10:11,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59733 conditions, 4549 events. 1668/4549 cut-off events. For 132541/139476 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 38027 event pairs, 331 based on Foata normal form. 138/4351 useless extension candidates. Maximal degree in co-relation 45867. Up to 2413 conditions per place. [2022-12-06 18:10:11,509 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 453 selfloop transitions, 65 changer transitions 176/819 dead transitions. [2022-12-06 18:10:11,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 819 transitions, 27584 flow [2022-12-06 18:10:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:11,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2862 transitions. [2022-12-06 18:10:11,512 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6615811373092927 [2022-12-06 18:10:11,512 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 356 predicate places. [2022-12-06 18:10:11,512 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 819 transitions, 27584 flow [2022-12-06 18:10:11,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:11,513 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:11,513 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:11,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-06 18:10:11,513 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 1 more)] === [2022-12-06 18:10:11,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:11,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1908133903, now seen corresponding path program 19 times [2022-12-06 18:10:11,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:11,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736259462] [2022-12-06 18:10:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:11,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:12,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:12,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736259462] [2022-12-06 18:10:12,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736259462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:12,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:12,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:12,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163895525] [2022-12-06 18:10:12,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:12,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:12,156 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:12,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 819 transitions, 27584 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:12,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:12,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:12,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:13,527 INFO L130 PetriNetUnfolder]: 1668/4544 cut-off events. [2022-12-06 18:10:13,527 INFO L131 PetriNetUnfolder]: For 147451/154906 co-relation queries the response was YES. [2022-12-06 18:10:13,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62686 conditions, 4544 events. 1668/4544 cut-off events. For 147451/154906 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 38040 event pairs, 250 based on Foata normal form. 136/4347 useless extension candidates. Maximal degree in co-relation 42670. Up to 2412 conditions per place. [2022-12-06 18:10:13,572 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 457 selfloop transitions, 62 changer transitions 181/825 dead transitions. [2022-12-06 18:10:13,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 825 transitions, 29213 flow [2022-12-06 18:10:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:13,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2856 transitions. [2022-12-06 18:10:13,575 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6601941747572816 [2022-12-06 18:10:13,575 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 376 predicate places. [2022-12-06 18:10:13,575 INFO L495 AbstractCegarLoop]: Abstraction has has 561 places, 825 transitions, 29213 flow [2022-12-06 18:10:13,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:13,576 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:13,576 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:13,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-06 18:10:13,576 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 1 more)] === [2022-12-06 18:10:13,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:13,577 INFO L85 PathProgramCache]: Analyzing trace with hash -905761791, now seen corresponding path program 20 times [2022-12-06 18:10:13,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:13,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718474189] [2022-12-06 18:10:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:13,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:14,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:14,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718474189] [2022-12-06 18:10:14,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718474189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:14,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:14,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181824428] [2022-12-06 18:10:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:14,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:14,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:14,184 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:14,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 825 transitions, 29213 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:14,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:14,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:14,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:15,618 INFO L130 PetriNetUnfolder]: 1676/4587 cut-off events. [2022-12-06 18:10:15,618 INFO L131 PetriNetUnfolder]: For 160253/167728 co-relation queries the response was YES. [2022-12-06 18:10:15,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66121 conditions, 4587 events. 1676/4587 cut-off events. For 160253/167728 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 38447 event pairs, 296 based on Foata normal form. 136/4390 useless extension candidates. Maximal degree in co-relation 50839. Up to 2431 conditions per place. [2022-12-06 18:10:15,658 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 462 selfloop transitions, 65 changer transitions 188/840 dead transitions. [2022-12-06 18:10:15,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 840 transitions, 31287 flow [2022-12-06 18:10:15,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2858 transitions. [2022-12-06 18:10:15,661 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6606564956079519 [2022-12-06 18:10:15,661 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 396 predicate places. [2022-12-06 18:10:15,661 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 840 transitions, 31287 flow [2022-12-06 18:10:15,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:15,662 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:15,662 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:15,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-06 18:10:15,662 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 1 more)] === [2022-12-06 18:10:15,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:15,662 INFO L85 PathProgramCache]: Analyzing trace with hash 878073033, now seen corresponding path program 21 times [2022-12-06 18:10:15,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:15,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378354628] [2022-12-06 18:10:15,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:15,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:16,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:16,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378354628] [2022-12-06 18:10:16,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378354628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:16,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:16,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:16,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735593882] [2022-12-06 18:10:16,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:16,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:16,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:16,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:16,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:16,348 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:16,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 840 transitions, 31287 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:16,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:16,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:16,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:18,095 INFO L130 PetriNetUnfolder]: 1825/5009 cut-off events. [2022-12-06 18:10:18,095 INFO L131 PetriNetUnfolder]: For 195840/207099 co-relation queries the response was YES. [2022-12-06 18:10:18,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75046 conditions, 5009 events. 1825/5009 cut-off events. For 195840/207099 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 43279 event pairs, 390 based on Foata normal form. 123/4781 useless extension candidates. Maximal degree in co-relation 51955. Up to 2646 conditions per place. [2022-12-06 18:10:18,139 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 492 selfloop transitions, 81 changer transitions 194/892 dead transitions. [2022-12-06 18:10:18,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 603 places, 892 transitions, 35092 flow [2022-12-06 18:10:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:10:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:10:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3144 transitions. [2022-12-06 18:10:18,141 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6635711270578303 [2022-12-06 18:10:18,142 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 418 predicate places. [2022-12-06 18:10:18,142 INFO L495 AbstractCegarLoop]: Abstraction has has 603 places, 892 transitions, 35092 flow [2022-12-06 18:10:18,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:18,142 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:18,143 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:18,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-06 18:10:18,143 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 1 more)] === [2022-12-06 18:10:18,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:18,143 INFO L85 PathProgramCache]: Analyzing trace with hash -795106539, now seen corresponding path program 22 times [2022-12-06 18:10:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:18,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086195696] [2022-12-06 18:10:18,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:18,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:18,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:18,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086195696] [2022-12-06 18:10:18,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086195696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:18,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:18,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:18,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366439905] [2022-12-06 18:10:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:18,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:18,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:18,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:18,775 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:18,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 892 transitions, 35092 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:18,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:18,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:18,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:20,568 INFO L130 PetriNetUnfolder]: 1903/5200 cut-off events. [2022-12-06 18:10:20,568 INFO L131 PetriNetUnfolder]: For 225069/235699 co-relation queries the response was YES. [2022-12-06 18:10:20,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81547 conditions, 5200 events. 1903/5200 cut-off events. For 225069/235699 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 45540 event pairs, 333 based on Foata normal form. 162/4989 useless extension candidates. Maximal degree in co-relation 57368. Up to 2761 conditions per place. [2022-12-06 18:10:20,618 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 514 selfloop transitions, 90 changer transitions 200/929 dead transitions. [2022-12-06 18:10:20,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 929 transitions, 38367 flow [2022-12-06 18:10:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:10:20,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:10:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3139 transitions. [2022-12-06 18:10:20,620 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6625158294639089 [2022-12-06 18:10:20,621 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 440 predicate places. [2022-12-06 18:10:20,621 INFO L495 AbstractCegarLoop]: Abstraction has has 625 places, 929 transitions, 38367 flow [2022-12-06 18:10:20,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:20,621 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:20,622 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:20,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-06 18:10:20,622 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 1 more)] === [2022-12-06 18:10:20,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:20,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1492004023, now seen corresponding path program 23 times [2022-12-06 18:10:20,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:20,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799674561] [2022-12-06 18:10:20,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:20,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:21,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:21,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799674561] [2022-12-06 18:10:21,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799674561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:21,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:21,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:21,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769085343] [2022-12-06 18:10:21,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:21,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:21,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:21,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:21,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:21,242 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:21,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 625 places, 929 transitions, 38367 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:21,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:21,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:21,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:23,185 INFO L130 PetriNetUnfolder]: 1954/5319 cut-off events. [2022-12-06 18:10:23,185 INFO L131 PetriNetUnfolder]: For 246278/255499 co-relation queries the response was YES. [2022-12-06 18:10:23,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87392 conditions, 5319 events. 1954/5319 cut-off events. For 246278/255499 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 47191 event pairs, 248 based on Foata normal form. 189/5143 useless extension candidates. Maximal degree in co-relation 68507. Up to 2840 conditions per place. [2022-12-06 18:10:23,245 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 536 selfloop transitions, 92 changer transitions 207/960 dead transitions. [2022-12-06 18:10:23,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 960 transitions, 41463 flow [2022-12-06 18:10:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 18:10:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 18:10:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3273 transitions. [2022-12-06 18:10:23,248 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6620145631067961 [2022-12-06 18:10:23,248 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 463 predicate places. [2022-12-06 18:10:23,249 INFO L495 AbstractCegarLoop]: Abstraction has has 648 places, 960 transitions, 41463 flow [2022-12-06 18:10:23,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:23,249 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:23,249 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:23,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-06 18:10:23,250 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 1 more)] === [2022-12-06 18:10:23,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:23,250 INFO L85 PathProgramCache]: Analyzing trace with hash 814779653, now seen corresponding path program 24 times [2022-12-06 18:10:23,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:23,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270559889] [2022-12-06 18:10:23,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:23,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:23,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:23,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270559889] [2022-12-06 18:10:23,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270559889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:23,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:23,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:23,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49243255] [2022-12-06 18:10:23,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:23,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:23,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:23,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:23,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:23,891 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:23,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 960 transitions, 41463 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:23,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:23,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:23,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:25,828 INFO L130 PetriNetUnfolder]: 2004/5490 cut-off events. [2022-12-06 18:10:25,828 INFO L131 PetriNetUnfolder]: For 274635/287286 co-relation queries the response was YES. [2022-12-06 18:10:25,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93282 conditions, 5490 events. 2004/5490 cut-off events. For 274635/287286 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 48963 event pairs, 291 based on Foata normal form. 154/5269 useless extension candidates. Maximal degree in co-relation 66690. Up to 2929 conditions per place. [2022-12-06 18:10:25,886 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 563 selfloop transitions, 94 changer transitions 213/995 dead transitions. [2022-12-06 18:10:25,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 995 transitions, 44962 flow [2022-12-06 18:10:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:10:25,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:10:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3139 transitions. [2022-12-06 18:10:25,888 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6625158294639089 [2022-12-06 18:10:25,888 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 485 predicate places. [2022-12-06 18:10:25,888 INFO L495 AbstractCegarLoop]: Abstraction has has 670 places, 995 transitions, 44962 flow [2022-12-06 18:10:25,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:25,889 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:25,890 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:25,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-06 18:10:25,890 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 1 more)] === [2022-12-06 18:10:25,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:25,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1065682129, now seen corresponding path program 25 times [2022-12-06 18:10:25,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:25,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119465284] [2022-12-06 18:10:25,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:25,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:26,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:26,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119465284] [2022-12-06 18:10:26,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119465284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:26,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:26,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:26,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521778727] [2022-12-06 18:10:26,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:26,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:26,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:26,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:26,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:26,465 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:26,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 995 transitions, 44962 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:26,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:26,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:26,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:28,448 INFO L130 PetriNetUnfolder]: 2004/5502 cut-off events. [2022-12-06 18:10:28,448 INFO L131 PetriNetUnfolder]: For 297939/309228 co-relation queries the response was YES. [2022-12-06 18:10:28,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96839 conditions, 5502 events. 2004/5502 cut-off events. For 297939/309228 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 48923 event pairs, 311 based on Foata normal form. 148/5271 useless extension candidates. Maximal degree in co-relation 69230. Up to 2928 conditions per place. [2022-12-06 18:10:28,508 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 575 selfloop transitions, 85 changer transitions 218/1003 dead transitions. [2022-12-06 18:10:28,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 1003 transitions, 47118 flow [2022-12-06 18:10:28,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:10:28,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:10:28,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3002 transitions. [2022-12-06 18:10:28,510 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6624007060900264 [2022-12-06 18:10:28,510 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 506 predicate places. [2022-12-06 18:10:28,510 INFO L495 AbstractCegarLoop]: Abstraction has has 691 places, 1003 transitions, 47118 flow [2022-12-06 18:10:28,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:28,511 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:28,511 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:28,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-06 18:10:28,511 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 1 more)] === [2022-12-06 18:10:28,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:28,511 INFO L85 PathProgramCache]: Analyzing trace with hash -973783911, now seen corresponding path program 26 times [2022-12-06 18:10:28,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:28,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012248554] [2022-12-06 18:10:28,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:28,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:29,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:29,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012248554] [2022-12-06 18:10:29,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012248554] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:29,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:29,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:29,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806524957] [2022-12-06 18:10:29,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:29,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:29,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:29,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:29,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:29,146 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:29,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 691 places, 1003 transitions, 47118 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:29,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:29,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:29,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:31,206 INFO L130 PetriNetUnfolder]: 2060/5639 cut-off events. [2022-12-06 18:10:31,206 INFO L131 PetriNetUnfolder]: For 329675/342053 co-relation queries the response was YES. [2022-12-06 18:10:31,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103216 conditions, 5639 events. 2060/5639 cut-off events. For 329675/342053 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 50362 event pairs, 331 based on Foata normal form. 111/5367 useless extension candidates. Maximal degree in co-relation 74506. Up to 3027 conditions per place. [2022-12-06 18:10:31,268 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 613 selfloop transitions, 75 changer transitions 226/1039 dead transitions. [2022-12-06 18:10:31,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 711 places, 1039 transitions, 50870 flow [2022-12-06 18:10:31,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:31,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2868 transitions. [2022-12-06 18:10:31,270 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6629680998613038 [2022-12-06 18:10:31,270 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 526 predicate places. [2022-12-06 18:10:31,270 INFO L495 AbstractCegarLoop]: Abstraction has has 711 places, 1039 transitions, 50870 flow [2022-12-06 18:10:31,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:31,271 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:31,271 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:31,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-06 18:10:31,271 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 1 more)] === [2022-12-06 18:10:31,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:31,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1557553193, now seen corresponding path program 27 times [2022-12-06 18:10:31,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:31,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547815057] [2022-12-06 18:10:31,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:31,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:31,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:31,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547815057] [2022-12-06 18:10:31,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547815057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:31,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:31,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:31,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182851190] [2022-12-06 18:10:31,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:31,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:31,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:31,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:31,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:31,881 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:31,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 711 places, 1039 transitions, 50870 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:31,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:31,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:31,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:34,125 INFO L130 PetriNetUnfolder]: 2110/5779 cut-off events. [2022-12-06 18:10:34,125 INFO L131 PetriNetUnfolder]: For 363877/377844 co-relation queries the response was YES. [2022-12-06 18:10:34,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109534 conditions, 5779 events. 2110/5779 cut-off events. For 363877/377844 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 52347 event pairs, 319 based on Foata normal form. 130/5517 useless extension candidates. Maximal degree in co-relation 79660. Up to 3116 conditions per place. [2022-12-06 18:10:34,192 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 627 selfloop transitions, 86 changer transitions 232/1070 dead transitions. [2022-12-06 18:10:34,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 732 places, 1070 transitions, 54476 flow [2022-12-06 18:10:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:10:34,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:10:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2999 transitions. [2022-12-06 18:10:34,194 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.661738746690203 [2022-12-06 18:10:34,194 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 547 predicate places. [2022-12-06 18:10:34,194 INFO L495 AbstractCegarLoop]: Abstraction has has 732 places, 1070 transitions, 54476 flow [2022-12-06 18:10:34,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:34,195 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:34,195 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:34,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-06 18:10:34,195 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 1 more)] === [2022-12-06 18:10:34,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1170102237, now seen corresponding path program 28 times [2022-12-06 18:10:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:34,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254220939] [2022-12-06 18:10:34,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:34,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:35,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:35,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254220939] [2022-12-06 18:10:35,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254220939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:35,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:35,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:35,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178901586] [2022-12-06 18:10:35,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:35,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:35,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:35,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:35,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:35,047 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:35,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 732 places, 1070 transitions, 54476 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:35,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:35,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:35,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:37,147 INFO L130 PetriNetUnfolder]: 2152/5937 cut-off events. [2022-12-06 18:10:37,148 INFO L131 PetriNetUnfolder]: For 401136/415859 co-relation queries the response was YES. [2022-12-06 18:10:37,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115962 conditions, 5937 events. 2152/5937 cut-off events. For 401136/415859 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 54711 event pairs, 245 based on Foata normal form. 130/5657 useless extension candidates. Maximal degree in co-relation 84759. Up to 3201 conditions per place. [2022-12-06 18:10:37,380 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 658 selfloop transitions, 77 changer transitions 239/1099 dead transitions. [2022-12-06 18:10:37,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 754 places, 1099 transitions, 58049 flow [2022-12-06 18:10:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:10:37,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:10:37,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3131 transitions. [2022-12-06 18:10:37,383 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6608273533136344 [2022-12-06 18:10:37,383 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 569 predicate places. [2022-12-06 18:10:37,383 INFO L495 AbstractCegarLoop]: Abstraction has has 754 places, 1099 transitions, 58049 flow [2022-12-06 18:10:37,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:37,384 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:37,384 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:37,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-06 18:10:37,384 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 1 more)] === [2022-12-06 18:10:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:37,384 INFO L85 PathProgramCache]: Analyzing trace with hash -657724565, now seen corresponding path program 29 times [2022-12-06 18:10:37,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:37,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843717528] [2022-12-06 18:10:37,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:37,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:37,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:37,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843717528] [2022-12-06 18:10:37,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843717528] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:37,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:37,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:37,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369197383] [2022-12-06 18:10:37,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:37,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:37,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:37,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:37,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:37,962 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:37,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 754 places, 1099 transitions, 58049 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:37,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:37,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:37,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:40,206 INFO L130 PetriNetUnfolder]: 2164/5975 cut-off events. [2022-12-06 18:10:40,207 INFO L131 PetriNetUnfolder]: For 434244/451758 co-relation queries the response was YES. [2022-12-06 18:10:40,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120732 conditions, 5975 events. 2164/5975 cut-off events. For 434244/451758 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 54839 event pairs, 289 based on Foata normal form. 130/5688 useless extension candidates. Maximal degree in co-relation 88341. Up to 3230 conditions per place. [2022-12-06 18:10:40,274 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 672 selfloop transitions, 74 changer transitions 245/1116 dead transitions. [2022-12-06 18:10:40,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 774 places, 1116 transitions, 61010 flow [2022-12-06 18:10:40,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:40,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2858 transitions. [2022-12-06 18:10:40,280 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6606564956079519 [2022-12-06 18:10:40,280 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 589 predicate places. [2022-12-06 18:10:40,280 INFO L495 AbstractCegarLoop]: Abstraction has has 774 places, 1116 transitions, 61010 flow [2022-12-06 18:10:40,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:40,281 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:40,281 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:40,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-06 18:10:40,281 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 1 more)] === [2022-12-06 18:10:40,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash -746916375, now seen corresponding path program 30 times [2022-12-06 18:10:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:40,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883586640] [2022-12-06 18:10:40,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:40,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:41,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:41,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883586640] [2022-12-06 18:10:41,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883586640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:41,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:41,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:41,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999831775] [2022-12-06 18:10:41,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:41,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:41,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:41,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:41,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:41,065 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:41,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 774 places, 1116 transitions, 61010 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:41,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:41,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:41,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:43,344 INFO L130 PetriNetUnfolder]: 2214/6105 cut-off events. [2022-12-06 18:10:43,344 INFO L131 PetriNetUnfolder]: For 474263/492301 co-relation queries the response was YES. [2022-12-06 18:10:43,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127517 conditions, 6105 events. 2214/6105 cut-off events. For 474263/492301 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 56523 event pairs, 316 based on Foata normal form. 135/5809 useless extension candidates. Maximal degree in co-relation 100734. Up to 3319 conditions per place. [2022-12-06 18:10:43,416 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 701 selfloop transitions, 79 changer transitions 251/1156 dead transitions. [2022-12-06 18:10:43,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 795 places, 1156 transitions, 65577 flow [2022-12-06 18:10:43,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:10:43,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:10:43,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3001 transitions. [2022-12-06 18:10:43,418 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.662180052956752 [2022-12-06 18:10:43,418 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 610 predicate places. [2022-12-06 18:10:43,418 INFO L495 AbstractCegarLoop]: Abstraction has has 795 places, 1156 transitions, 65577 flow [2022-12-06 18:10:43,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:43,419 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:43,419 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:43,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-06 18:10:43,419 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 1 more)] === [2022-12-06 18:10:43,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:43,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1358730179, now seen corresponding path program 31 times [2022-12-06 18:10:43,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:43,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188238756] [2022-12-06 18:10:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:43,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:44,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:44,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188238756] [2022-12-06 18:10:44,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188238756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:44,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:44,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:44,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350597082] [2022-12-06 18:10:44,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:44,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:44,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:44,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:44,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:44,042 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:44,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 795 places, 1156 transitions, 65577 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:44,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:44,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:44,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:46,565 INFO L130 PetriNetUnfolder]: 2224/6116 cut-off events. [2022-12-06 18:10:46,565 INFO L131 PetriNetUnfolder]: For 495670/512195 co-relation queries the response was YES. [2022-12-06 18:10:46,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132336 conditions, 6116 events. 2224/6116 cut-off events. For 495670/512195 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 56681 event pairs, 306 based on Foata normal form. 127/5811 useless extension candidates. Maximal degree in co-relation 104522. Up to 3339 conditions per place. [2022-12-06 18:10:46,635 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 722 selfloop transitions, 71 changer transitions 257/1175 dead transitions. [2022-12-06 18:10:46,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 815 places, 1175 transitions, 68827 flow [2022-12-06 18:10:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:10:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:10:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2854 transitions. [2022-12-06 18:10:46,636 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6597318539066112 [2022-12-06 18:10:46,637 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 630 predicate places. [2022-12-06 18:10:46,637 INFO L495 AbstractCegarLoop]: Abstraction has has 815 places, 1175 transitions, 68827 flow [2022-12-06 18:10:46,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:46,637 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:46,637 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:46,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-06 18:10:46,637 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 1 more)] === [2022-12-06 18:10:46,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash -689651091, now seen corresponding path program 32 times [2022-12-06 18:10:46,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:46,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327899051] [2022-12-06 18:10:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:46,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:47,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:47,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327899051] [2022-12-06 18:10:47,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327899051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:47,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:47,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729513791] [2022-12-06 18:10:47,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:47,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:47,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:47,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:47,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:47,259 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:47,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 815 places, 1175 transitions, 68827 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:47,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:47,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:47,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:49,954 INFO L130 PetriNetUnfolder]: 2266/6241 cut-off events. [2022-12-06 18:10:49,954 INFO L131 PetriNetUnfolder]: For 554896/575837 co-relation queries the response was YES. [2022-12-06 18:10:49,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139313 conditions, 6241 events. 2266/6241 cut-off events. For 554896/575837 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 58355 event pairs, 281 based on Foata normal form. 122/5917 useless extension candidates. Maximal degree in co-relation 103896. Up to 3424 conditions per place. [2022-12-06 18:10:50,030 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 739 selfloop transitions, 76 changer transitions 264/1204 dead transitions. [2022-12-06 18:10:50,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 836 places, 1204 transitions, 72842 flow [2022-12-06 18:10:50,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:10:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:10:50,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2998 transitions. [2022-12-06 18:10:50,032 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6615180935569285 [2022-12-06 18:10:50,032 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 651 predicate places. [2022-12-06 18:10:50,032 INFO L495 AbstractCegarLoop]: Abstraction has has 836 places, 1204 transitions, 72842 flow [2022-12-06 18:10:50,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:50,032 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:50,033 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:50,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-06 18:10:50,033 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 1 more)] === [2022-12-06 18:10:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:50,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1007908581, now seen corresponding path program 33 times [2022-12-06 18:10:50,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:50,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593018157] [2022-12-06 18:10:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:50,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:50,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:50,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593018157] [2022-12-06 18:10:50,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593018157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:50,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:50,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:50,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391001058] [2022-12-06 18:10:50,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:50,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:50,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:50,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:50,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:50,616 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:50,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 1204 transitions, 72842 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:50,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:50,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:50,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:53,258 INFO L130 PetriNetUnfolder]: 2344/6462 cut-off events. [2022-12-06 18:10:53,258 INFO L131 PetriNetUnfolder]: For 604059/624095 co-relation queries the response was YES. [2022-12-06 18:10:53,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148151 conditions, 6462 events. 2344/6462 cut-off events. For 604059/624095 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 60532 event pairs, 355 based on Foata normal form. 122/6128 useless extension candidates. Maximal degree in co-relation 110742. Up to 3539 conditions per place. [2022-12-06 18:10:53,513 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 765 selfloop transitions, 81 changer transitions 270/1241 dead transitions. [2022-12-06 18:10:53,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 857 places, 1241 transitions, 77555 flow [2022-12-06 18:10:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:10:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:10:53,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3001 transitions. [2022-12-06 18:10:53,515 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.662180052956752 [2022-12-06 18:10:53,515 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 672 predicate places. [2022-12-06 18:10:53,515 INFO L495 AbstractCegarLoop]: Abstraction has has 857 places, 1241 transitions, 77555 flow [2022-12-06 18:10:53,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:53,516 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:53,516 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:53,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-06 18:10:53,516 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 1 more)] === [2022-12-06 18:10:53,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:53,516 INFO L85 PathProgramCache]: Analyzing trace with hash -414337343, now seen corresponding path program 34 times [2022-12-06 18:10:53,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:53,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186532445] [2022-12-06 18:10:53,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:53,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:54,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:54,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186532445] [2022-12-06 18:10:54,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186532445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:54,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:54,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741793461] [2022-12-06 18:10:54,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:54,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:54,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:54,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:54,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:54,213 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:54,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 857 places, 1241 transitions, 77555 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:54,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:54,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:54,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:10:57,065 INFO L130 PetriNetUnfolder]: 2395/6620 cut-off events. [2022-12-06 18:10:57,065 INFO L131 PetriNetUnfolder]: For 645394/666359 co-relation queries the response was YES. [2022-12-06 18:10:57,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155957 conditions, 6620 events. 2395/6620 cut-off events. For 645394/666359 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 62339 event pairs, 396 based on Foata normal form. 116/6269 useless extension candidates. Maximal degree in co-relation 117094. Up to 3618 conditions per place. [2022-12-06 18:10:57,145 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 790 selfloop transitions, 80 changer transitions 277/1272 dead transitions. [2022-12-06 18:10:57,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 879 places, 1272 transitions, 81957 flow [2022-12-06 18:10:57,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:10:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:10:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3135 transitions. [2022-12-06 18:10:57,147 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6616715913887716 [2022-12-06 18:10:57,147 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 694 predicate places. [2022-12-06 18:10:57,148 INFO L495 AbstractCegarLoop]: Abstraction has has 879 places, 1272 transitions, 81957 flow [2022-12-06 18:10:57,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:57,148 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:10:57,148 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:10:57,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-06 18:10:57,148 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 1 more)] === [2022-12-06 18:10:57,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:10:57,149 INFO L85 PathProgramCache]: Analyzing trace with hash -293119087, now seen corresponding path program 35 times [2022-12-06 18:10:57,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:10:57,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909801490] [2022-12-06 18:10:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:10:57,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:10:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:10:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:10:57,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:10:57,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909801490] [2022-12-06 18:10:57,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909801490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:10:57,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:10:57,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:10:57,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491574969] [2022-12-06 18:10:57,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:10:57,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:10:57,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:10:57,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:10:57,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:10:57,820 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:10:57,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 879 places, 1272 transitions, 81957 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:10:57,820 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:10:57,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:10:57,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:00,883 INFO L130 PetriNetUnfolder]: 2446/6769 cut-off events. [2022-12-06 18:11:00,883 INFO L131 PetriNetUnfolder]: For 707262/728962 co-relation queries the response was YES. [2022-12-06 18:11:00,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163952 conditions, 6769 events. 2446/6769 cut-off events. For 707262/728962 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 64323 event pairs, 351 based on Foata normal form. 121/6415 useless extension candidates. Maximal degree in co-relation 123870. Up to 3697 conditions per place. [2022-12-06 18:11:00,966 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 816 selfloop transitions, 78 changer transitions 284/1303 dead transitions. [2022-12-06 18:11:00,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 900 places, 1303 transitions, 86483 flow [2022-12-06 18:11:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:11:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:11:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3000 transitions. [2022-12-06 18:11:00,968 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6619593998234775 [2022-12-06 18:11:00,969 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 715 predicate places. [2022-12-06 18:11:00,969 INFO L495 AbstractCegarLoop]: Abstraction has has 900 places, 1303 transitions, 86483 flow [2022-12-06 18:11:00,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:00,969 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:00,969 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:00,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-06 18:11:00,969 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 1 more)] === [2022-12-06 18:11:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:00,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1954703695, now seen corresponding path program 36 times [2022-12-06 18:11:00,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:00,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601287403] [2022-12-06 18:11:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:00,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:01,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:01,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601287403] [2022-12-06 18:11:01,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601287403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:01,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:01,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:01,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826284191] [2022-12-06 18:11:01,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:01,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:01,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:01,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:01,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:01,624 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:01,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 900 places, 1303 transitions, 86483 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:01,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:01,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:01,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:04,762 INFO L130 PetriNetUnfolder]: 2496/6932 cut-off events. [2022-12-06 18:11:04,763 INFO L131 PetriNetUnfolder]: For 779881/807533 co-relation queries the response was YES. [2022-12-06 18:11:04,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171846 conditions, 6932 events. 2496/6932 cut-off events. For 779881/807533 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 66453 event pairs, 384 based on Foata normal form. 125/6553 useless extension candidates. Maximal degree in co-relation 130430. Up to 3786 conditions per place. [2022-12-06 18:11:04,848 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 840 selfloop transitions, 83 changer transitions 290/1338 dead transitions. [2022-12-06 18:11:04,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 1338 transitions, 91508 flow [2022-12-06 18:11:04,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:11:04,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:11:04,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3001 transitions. [2022-12-06 18:11:04,849 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.662180052956752 [2022-12-06 18:11:04,850 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 736 predicate places. [2022-12-06 18:11:04,850 INFO L495 AbstractCegarLoop]: Abstraction has has 921 places, 1338 transitions, 91508 flow [2022-12-06 18:11:04,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:04,850 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:04,850 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:04,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-06 18:11:04,850 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 1 more)] === [2022-12-06 18:11:04,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:04,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1350897529, now seen corresponding path program 37 times [2022-12-06 18:11:04,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:04,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92989713] [2022-12-06 18:11:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:04,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:05,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:05,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92989713] [2022-12-06 18:11:05,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92989713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:05,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:05,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:05,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835341239] [2022-12-06 18:11:05,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:05,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:05,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:05,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:05,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:05,565 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:05,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 1338 transitions, 91508 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:05,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:05,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:05,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:08,693 INFO L130 PetriNetUnfolder]: 2523/6999 cut-off events. [2022-12-06 18:11:08,693 INFO L131 PetriNetUnfolder]: For 828106/856727 co-relation queries the response was YES. [2022-12-06 18:11:08,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178303 conditions, 6999 events. 2523/6999 cut-off events. For 828106/856727 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 67182 event pairs, 392 based on Foata normal form. 133/6626 useless extension candidates. Maximal degree in co-relation 136284. Up to 3812 conditions per place. [2022-12-06 18:11:08,891 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 860 selfloop transitions, 83 changer transitions 296/1364 dead transitions. [2022-12-06 18:11:08,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 1364 transitions, 95901 flow [2022-12-06 18:11:08,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:11:08,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:11:08,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2864 transitions. [2022-12-06 18:11:08,893 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.662043458159963 [2022-12-06 18:11:08,893 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 756 predicate places. [2022-12-06 18:11:08,894 INFO L495 AbstractCegarLoop]: Abstraction has has 941 places, 1364 transitions, 95901 flow [2022-12-06 18:11:08,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:08,894 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:08,894 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:08,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-06 18:11:08,894 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 1 more)] === [2022-12-06 18:11:08,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:08,895 INFO L85 PathProgramCache]: Analyzing trace with hash 50459541, now seen corresponding path program 38 times [2022-12-06 18:11:08,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:08,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870207809] [2022-12-06 18:11:08,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:08,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:09,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:09,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870207809] [2022-12-06 18:11:09,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870207809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:09,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:09,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:09,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464889501] [2022-12-06 18:11:09,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:09,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:09,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:09,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:09,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:09,498 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:09,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 941 places, 1364 transitions, 95901 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:09,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:09,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:09,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:12,941 INFO L130 PetriNetUnfolder]: 2523/7036 cut-off events. [2022-12-06 18:11:12,942 INFO L131 PetriNetUnfolder]: For 878922/910599 co-relation queries the response was YES. [2022-12-06 18:11:12,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182855 conditions, 7036 events. 2523/7036 cut-off events. For 878922/910599 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 67366 event pairs, 418 based on Foata normal form. 105/6634 useless extension candidates. Maximal degree in co-relation 138899. Up to 3811 conditions per place. [2022-12-06 18:11:13,052 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 863 selfloop transitions, 81 changer transitions 301/1370 dead transitions. [2022-12-06 18:11:13,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 1370 transitions, 98848 flow [2022-12-06 18:11:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:11:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:11:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2857 transitions. [2022-12-06 18:11:13,055 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6604253351826167 [2022-12-06 18:11:13,056 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 776 predicate places. [2022-12-06 18:11:13,056 INFO L495 AbstractCegarLoop]: Abstraction has has 961 places, 1370 transitions, 98848 flow [2022-12-06 18:11:13,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:13,056 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:13,056 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:13,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-06 18:11:13,056 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 1 more)] === [2022-12-06 18:11:13,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:13,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1059960543, now seen corresponding path program 39 times [2022-12-06 18:11:13,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:13,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87522289] [2022-12-06 18:11:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:13,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:13,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:13,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87522289] [2022-12-06 18:11:13,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87522289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:13,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:13,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:13,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046514038] [2022-12-06 18:11:13,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:13,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:13,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:13,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:13,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:13,677 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:13,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 961 places, 1370 transitions, 98848 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:13,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:13,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:13,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:17,180 INFO L130 PetriNetUnfolder]: 2529/7046 cut-off events. [2022-12-06 18:11:17,180 INFO L131 PetriNetUnfolder]: For 918669/949609 co-relation queries the response was YES. [2022-12-06 18:11:17,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187721 conditions, 7046 events. 2529/7046 cut-off events. For 918669/949609 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 67645 event pairs, 396 based on Foata normal form. 121/6660 useless extension candidates. Maximal degree in co-relation 142700. Up to 3813 conditions per place. [2022-12-06 18:11:17,275 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 866 selfloop transitions, 86 changer transitions 306/1383 dead transitions. [2022-12-06 18:11:17,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 981 places, 1383 transitions, 102378 flow [2022-12-06 18:11:17,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:11:17,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:11:17,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2863 transitions. [2022-12-06 18:11:17,276 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6618122977346278 [2022-12-06 18:11:17,277 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 796 predicate places. [2022-12-06 18:11:17,277 INFO L495 AbstractCegarLoop]: Abstraction has has 981 places, 1383 transitions, 102378 flow [2022-12-06 18:11:17,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:17,277 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:17,277 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:17,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-06 18:11:17,277 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 1 more)] === [2022-12-06 18:11:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1537908833, now seen corresponding path program 40 times [2022-12-06 18:11:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:17,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181687453] [2022-12-06 18:11:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:17,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:17,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:17,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181687453] [2022-12-06 18:11:17,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181687453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:17,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:17,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:17,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572064599] [2022-12-06 18:11:17,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:17,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:17,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:17,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:17,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:17,947 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:17,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 1383 transitions, 102378 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:17,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:17,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:17,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:21,472 INFO L130 PetriNetUnfolder]: 2529/7054 cut-off events. [2022-12-06 18:11:21,472 INFO L131 PetriNetUnfolder]: For 958358/988224 co-relation queries the response was YES. [2022-12-06 18:11:21,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192249 conditions, 7054 events. 2529/7054 cut-off events. For 958358/988224 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 68192 event pairs, 274 based on Foata normal form. 146/6713 useless extension candidates. Maximal degree in co-relation 153147. Up to 3812 conditions per place. [2022-12-06 18:11:21,637 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 867 selfloop transitions, 86 changer transitions 311/1389 dead transitions. [2022-12-06 18:11:21,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1001 places, 1389 transitions, 105387 flow [2022-12-06 18:11:21,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:11:21,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:11:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2859 transitions. [2022-12-06 18:11:21,639 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6608876560332871 [2022-12-06 18:11:21,640 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 816 predicate places. [2022-12-06 18:11:21,640 INFO L495 AbstractCegarLoop]: Abstraction has has 1001 places, 1389 transitions, 105387 flow [2022-12-06 18:11:21,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:21,640 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:21,640 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:21,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-06 18:11:21,640 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 1 more)] === [2022-12-06 18:11:21,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:21,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1745718987, now seen corresponding path program 41 times [2022-12-06 18:11:21,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:21,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33526344] [2022-12-06 18:11:21,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:21,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:22,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:22,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33526344] [2022-12-06 18:11:22,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33526344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:22,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:22,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:22,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770915494] [2022-12-06 18:11:22,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:22,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:22,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:22,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:22,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:22,257 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:22,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1001 places, 1389 transitions, 105387 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:22,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:22,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:22,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:26,042 INFO L130 PetriNetUnfolder]: 2535/7090 cut-off events. [2022-12-06 18:11:26,042 INFO L131 PetriNetUnfolder]: For 1027365/1063262 co-relation queries the response was YES. [2022-12-06 18:11:26,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197721 conditions, 7090 events. 2535/7090 cut-off events. For 1027365/1063262 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 68624 event pairs, 333 based on Foata normal form. 133/6730 useless extension candidates. Maximal degree in co-relation 151401. Up to 3829 conditions per place. [2022-12-06 18:11:26,138 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 878 selfloop transitions, 83 changer transitions 317/1403 dead transitions. [2022-12-06 18:11:26,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1021 places, 1403 transitions, 109080 flow [2022-12-06 18:11:26,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:11:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:11:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2861 transitions. [2022-12-06 18:11:26,140 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6613499768839575 [2022-12-06 18:11:26,141 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 836 predicate places. [2022-12-06 18:11:26,141 INFO L495 AbstractCegarLoop]: Abstraction has has 1021 places, 1403 transitions, 109080 flow [2022-12-06 18:11:26,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:26,141 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:26,141 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:26,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-06 18:11:26,141 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 1 more)] === [2022-12-06 18:11:26,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1913032467, now seen corresponding path program 42 times [2022-12-06 18:11:26,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:26,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692546974] [2022-12-06 18:11:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:26,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:26,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692546974] [2022-12-06 18:11:26,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692546974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:26,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:26,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:26,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632260539] [2022-12-06 18:11:26,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:26,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:26,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:26,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:26,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:26,695 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:26,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 1403 transitions, 109080 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:26,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:26,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:26,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:30,308 INFO L130 PetriNetUnfolder]: 2535/7092 cut-off events. [2022-12-06 18:11:30,309 INFO L131 PetriNetUnfolder]: For 1067003/1097627 co-relation queries the response was YES. [2022-12-06 18:11:30,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202261 conditions, 7092 events. 2535/7092 cut-off events. For 1067003/1097627 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 68580 event pairs, 272 based on Foata normal form. 151/6752 useless extension candidates. Maximal degree in co-relation 161098. Up to 3828 conditions per place. [2022-12-06 18:11:30,406 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 882 selfloop transitions, 82 changer transitions 322/1411 dead transitions. [2022-12-06 18:11:30,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1041 places, 1411 transitions, 112324 flow [2022-12-06 18:11:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:11:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:11:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2856 transitions. [2022-12-06 18:11:30,408 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6601941747572816 [2022-12-06 18:11:30,408 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 856 predicate places. [2022-12-06 18:11:30,408 INFO L495 AbstractCegarLoop]: Abstraction has has 1041 places, 1411 transitions, 112324 flow [2022-12-06 18:11:30,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:30,408 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:30,408 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:30,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-06 18:11:30,409 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 1 more)] === [2022-12-06 18:11:30,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:30,409 INFO L85 PathProgramCache]: Analyzing trace with hash -330785251, now seen corresponding path program 43 times [2022-12-06 18:11:30,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:30,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81832153] [2022-12-06 18:11:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:30,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:31,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:31,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81832153] [2022-12-06 18:11:31,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81832153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:31,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:31,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:31,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024829095] [2022-12-06 18:11:31,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:31,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:31,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:31,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:31,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:31,081 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:31,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 1411 transitions, 112324 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:31,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:31,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:31,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:35,184 INFO L130 PetriNetUnfolder]: 2577/7200 cut-off events. [2022-12-06 18:11:35,185 INFO L131 PetriNetUnfolder]: For 1137492/1168351 co-relation queries the response was YES. [2022-12-06 18:11:35,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210764 conditions, 7200 events. 2577/7200 cut-off events. For 1137492/1168351 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 69600 event pairs, 331 based on Foata normal form. 97/6793 useless extension candidates. Maximal degree in co-relation 160988. Up to 3913 conditions per place. [2022-12-06 18:11:35,286 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 896 selfloop transitions, 90 changer transitions 329/1440 dead transitions. [2022-12-06 18:11:35,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1063 places, 1440 transitions, 117449 flow [2022-12-06 18:11:35,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:11:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:11:35,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3135 transitions. [2022-12-06 18:11:35,288 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6616715913887716 [2022-12-06 18:11:35,288 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 878 predicate places. [2022-12-06 18:11:35,288 INFO L495 AbstractCegarLoop]: Abstraction has has 1063 places, 1440 transitions, 117449 flow [2022-12-06 18:11:35,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:35,288 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:35,288 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:35,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-06 18:11:35,289 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 1 more)] === [2022-12-06 18:11:35,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:35,289 INFO L85 PathProgramCache]: Analyzing trace with hash -55473309, now seen corresponding path program 44 times [2022-12-06 18:11:35,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:35,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798701013] [2022-12-06 18:11:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:35,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:35,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:35,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:35,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798701013] [2022-12-06 18:11:35,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798701013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:35,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:35,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:35,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664810587] [2022-12-06 18:11:35,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:35,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:35,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:35,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:35,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:35,994 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:35,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1063 places, 1440 transitions, 117449 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:35,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:35,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:35,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:40,708 INFO L130 PetriNetUnfolder]: 2607/7306 cut-off events. [2022-12-06 18:11:40,709 INFO L131 PetriNetUnfolder]: For 1204384/1236839 co-relation queries the response was YES. [2022-12-06 18:11:40,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218059 conditions, 7306 events. 2607/7306 cut-off events. For 1204384/1236839 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 71288 event pairs, 322 based on Foata normal form. 127/6913 useless extension candidates. Maximal degree in co-relation 166752. Up to 3968 conditions per place. [2022-12-06 18:11:40,983 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 921 selfloop transitions, 92 changer transitions 335/1473 dead transitions. [2022-12-06 18:11:40,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1084 places, 1473 transitions, 123136 flow [2022-12-06 18:11:40,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:11:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:11:40,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3005 transitions. [2022-12-06 18:11:40,993 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6630626654898499 [2022-12-06 18:11:40,993 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 899 predicate places. [2022-12-06 18:11:40,993 INFO L495 AbstractCegarLoop]: Abstraction has has 1084 places, 1473 transitions, 123136 flow [2022-12-06 18:11:40,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:40,994 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:40,994 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:40,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-06 18:11:40,994 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 1 more)] === [2022-12-06 18:11:40,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:40,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1525216193, now seen corresponding path program 45 times [2022-12-06 18:11:40,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:40,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370822880] [2022-12-06 18:11:40,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:40,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:41,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:41,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370822880] [2022-12-06 18:11:41,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370822880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:41,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:41,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:41,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560219474] [2022-12-06 18:11:41,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:41,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:41,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:41,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:41,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:41,981 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:41,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1084 places, 1473 transitions, 123136 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:41,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:41,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:41,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:46,975 INFO L130 PetriNetUnfolder]: 2622/7435 cut-off events. [2022-12-06 18:11:46,975 INFO L131 PetriNetUnfolder]: For 1264440/1300414 co-relation queries the response was YES. [2022-12-06 18:11:46,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224497 conditions, 7435 events. 2622/7435 cut-off events. For 1264440/1300414 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 73585 event pairs, 281 based on Foata normal form. 115/7038 useless extension candidates. Maximal degree in co-relation 171806. Up to 4002 conditions per place. [2022-12-06 18:11:47,091 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 938 selfloop transitions, 89 changer transitions 341/1493 dead transitions. [2022-12-06 18:11:47,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1104 places, 1493 transitions, 127666 flow [2022-12-06 18:11:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:11:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:11:47,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2862 transitions. [2022-12-06 18:11:47,093 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6615811373092927 [2022-12-06 18:11:47,093 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 919 predicate places. [2022-12-06 18:11:47,093 INFO L495 AbstractCegarLoop]: Abstraction has has 1104 places, 1493 transitions, 127666 flow [2022-12-06 18:11:47,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:47,094 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:47,094 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:47,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-06 18:11:47,094 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:11:47,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:47,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1862478451, now seen corresponding path program 46 times [2022-12-06 18:11:47,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:47,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363118965] [2022-12-06 18:11:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:47,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:47,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:47,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363118965] [2022-12-06 18:11:47,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363118965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:47,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:47,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:47,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046111839] [2022-12-06 18:11:47,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:47,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:47,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:47,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:47,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:47,965 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:47,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1104 places, 1493 transitions, 127666 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:47,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:47,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:47,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:11:53,253 INFO L130 PetriNetUnfolder]: 2632/7455 cut-off events. [2022-12-06 18:11:53,254 INFO L131 PetriNetUnfolder]: For 1344193/1382298 co-relation queries the response was YES. [2022-12-06 18:11:53,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230521 conditions, 7455 events. 2632/7455 cut-off events. For 1344193/1382298 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 73859 event pairs, 325 based on Foata normal form. 115/7046 useless extension candidates. Maximal degree in co-relation 176516. Up to 4022 conditions per place. [2022-12-06 18:11:53,499 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 952 selfloop transitions, 88 changer transitions 347/1512 dead transitions. [2022-12-06 18:11:53,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1124 places, 1512 transitions, 132160 flow [2022-12-06 18:11:53,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:11:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:11:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2858 transitions. [2022-12-06 18:11:53,501 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6606564956079519 [2022-12-06 18:11:53,501 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 939 predicate places. [2022-12-06 18:11:53,501 INFO L495 AbstractCegarLoop]: Abstraction has has 1124 places, 1512 transitions, 132160 flow [2022-12-06 18:11:53,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:53,502 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:11:53,502 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:11:53,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-06 18:11:53,502 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:11:53,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:11:53,502 INFO L85 PathProgramCache]: Analyzing trace with hash -99050635, now seen corresponding path program 47 times [2022-12-06 18:11:53,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:11:53,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168731486] [2022-12-06 18:11:53,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:11:53,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:11:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:11:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:11:54,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:11:54,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168731486] [2022-12-06 18:11:54,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168731486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:11:54,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:11:54,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:11:54,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738727291] [2022-12-06 18:11:54,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:11:54,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:11:54,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:11:54,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:11:54,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:11:54,731 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:11:54,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1124 places, 1512 transitions, 132160 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:11:54,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:11:54,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:11:54,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:12:00,129 INFO L130 PetriNetUnfolder]: 2674/7632 cut-off events. [2022-12-06 18:12:00,130 INFO L131 PetriNetUnfolder]: For 1434972/1476669 co-relation queries the response was YES. [2022-12-06 18:12:00,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239646 conditions, 7632 events. 2674/7632 cut-off events. For 1434972/1476669 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 75820 event pairs, 360 based on Foata normal form. 106/7210 useless extension candidates. Maximal degree in co-relation 183952. Up to 4107 conditions per place. [2022-12-06 18:12:00,287 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 969 selfloop transitions, 93 changer transitions 354/1541 dead transitions. [2022-12-06 18:12:00,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1145 places, 1541 transitions, 137719 flow [2022-12-06 18:12:00,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:12:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:12:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3002 transitions. [2022-12-06 18:12:00,390 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6624007060900264 [2022-12-06 18:12:00,390 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 960 predicate places. [2022-12-06 18:12:00,390 INFO L495 AbstractCegarLoop]: Abstraction has has 1145 places, 1541 transitions, 137719 flow [2022-12-06 18:12:00,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:00,391 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:12:00,391 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:12:00,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-06 18:12:00,391 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:12:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:12:00,391 INFO L85 PathProgramCache]: Analyzing trace with hash -523265925, now seen corresponding path program 48 times [2022-12-06 18:12:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:12:00,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797999243] [2022-12-06 18:12:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:12:00,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:12:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:12:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:12:01,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:12:01,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797999243] [2022-12-06 18:12:01,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797999243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:12:01,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:12:01,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:12:01,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252228005] [2022-12-06 18:12:01,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:12:01,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:12:01,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:12:01,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:12:01,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:12:01,256 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:12:01,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1145 places, 1541 transitions, 137719 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:01,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:12:01,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:12:01,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:12:06,721 INFO L130 PetriNetUnfolder]: 2724/7700 cut-off events. [2022-12-06 18:12:06,722 INFO L131 PetriNetUnfolder]: For 1520224/1561099 co-relation queries the response was YES. [2022-12-06 18:12:06,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248984 conditions, 7700 events. 2724/7700 cut-off events. For 1520224/1561099 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 76762 event pairs, 334 based on Foata normal form. 118/7283 useless extension candidates. Maximal degree in co-relation 191945. Up to 4196 conditions per place. [2022-12-06 18:12:06,850 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 991 selfloop transitions, 98 changer transitions 360/1574 dead transitions. [2022-12-06 18:12:06,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1166 places, 1574 transitions, 143820 flow [2022-12-06 18:12:06,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:12:06,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:12:06,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3005 transitions. [2022-12-06 18:12:06,853 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6630626654898499 [2022-12-06 18:12:06,853 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 981 predicate places. [2022-12-06 18:12:06,854 INFO L495 AbstractCegarLoop]: Abstraction has has 1166 places, 1574 transitions, 143820 flow [2022-12-06 18:12:06,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:06,854 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:12:06,854 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:12:06,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-06 18:12:06,854 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:12:06,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:12:06,855 INFO L85 PathProgramCache]: Analyzing trace with hash 977501235, now seen corresponding path program 49 times [2022-12-06 18:12:06,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:12:06,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734089870] [2022-12-06 18:12:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:12:06,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:12:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:12:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:12:07,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:12:07,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734089870] [2022-12-06 18:12:07,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734089870] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:12:07,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:12:07,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:12:07,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46460337] [2022-12-06 18:12:07,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:12:07,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:12:07,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:12:07,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:12:07,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:12:07,777 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:12:07,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1166 places, 1574 transitions, 143820 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:07,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:12:07,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:12:07,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:12:13,574 INFO L130 PetriNetUnfolder]: 2775/7844 cut-off events. [2022-12-06 18:12:13,579 INFO L131 PetriNetUnfolder]: For 1589208/1629069 co-relation queries the response was YES. [2022-12-06 18:12:13,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259008 conditions, 7844 events. 2775/7844 cut-off events. For 1589208/1629069 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 78551 event pairs, 322 based on Foata normal form. 106/7406 useless extension candidates. Maximal degree in co-relation 200278. Up to 4275 conditions per place. [2022-12-06 18:12:13,702 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1016 selfloop transitions, 97 changer transitions 367/1605 dead transitions. [2022-12-06 18:12:13,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1188 places, 1605 transitions, 149818 flow [2022-12-06 18:12:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 18:12:13,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 18:12:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3139 transitions. [2022-12-06 18:12:13,705 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6625158294639089 [2022-12-06 18:12:13,705 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1003 predicate places. [2022-12-06 18:12:13,706 INFO L495 AbstractCegarLoop]: Abstraction has has 1188 places, 1605 transitions, 149818 flow [2022-12-06 18:12:13,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:13,706 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:12:13,706 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:12:13,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-06 18:12:13,706 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:12:13,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:12:13,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1489868255, now seen corresponding path program 50 times [2022-12-06 18:12:13,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:12:13,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247931402] [2022-12-06 18:12:13,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:12:13,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:12:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:12:14,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:12:14,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:12:14,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247931402] [2022-12-06 18:12:14,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247931402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:12:14,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:12:14,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:12:14,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202070460] [2022-12-06 18:12:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:12:14,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:12:14,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:12:14,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:12:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:12:14,604 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:12:14,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1188 places, 1605 transitions, 149818 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:14,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:12:14,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:12:14,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:12:20,358 INFO L130 PetriNetUnfolder]: 2826/8032 cut-off events. [2022-12-06 18:12:20,358 INFO L131 PetriNetUnfolder]: For 1699721/1750296 co-relation queries the response was YES. [2022-12-06 18:12:20,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269274 conditions, 8032 events. 2826/8032 cut-off events. For 1699721/1750296 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 81214 event pairs, 324 based on Foata normal form. 115/7588 useless extension candidates. Maximal degree in co-relation 214665. Up to 4354 conditions per place. [2022-12-06 18:12:20,486 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1042 selfloop transitions, 95 changer transitions 374/1636 dead transitions. [2022-12-06 18:12:20,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1209 places, 1636 transitions, 155940 flow [2022-12-06 18:12:20,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:12:20,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:12:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3004 transitions. [2022-12-06 18:12:20,488 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6628420123565755 [2022-12-06 18:12:20,488 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1024 predicate places. [2022-12-06 18:12:20,488 INFO L495 AbstractCegarLoop]: Abstraction has has 1209 places, 1636 transitions, 155940 flow [2022-12-06 18:12:20,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:20,489 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:12:20,489 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:12:20,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-06 18:12:20,489 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:12:20,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:12:20,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1537803639, now seen corresponding path program 51 times [2022-12-06 18:12:20,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:12:20,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977589743] [2022-12-06 18:12:20,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:12:20,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:12:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:12:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:12:21,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:12:21,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977589743] [2022-12-06 18:12:21,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977589743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:12:21,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:12:21,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:12:21,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945364813] [2022-12-06 18:12:21,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:12:21,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:12:21,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:12:21,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:12:21,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:12:21,224 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:12:21,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1209 places, 1636 transitions, 155940 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:21,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:12:21,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:12:21,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:12:28,228 INFO L130 PetriNetUnfolder]: 2856/8124 cut-off events. [2022-12-06 18:12:28,228 INFO L131 PetriNetUnfolder]: For 1787968/1835729 co-relation queries the response was YES. [2022-12-06 18:12:28,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277440 conditions, 8124 events. 2856/8124 cut-off events. For 1787968/1835729 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 82313 event pairs, 294 based on Foata normal form. 131/7687 useless extension candidates. Maximal degree in co-relation 221513. Up to 4409 conditions per place. [2022-12-06 18:12:28,506 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1064 selfloop transitions, 100 changer transitions 380/1669 dead transitions. [2022-12-06 18:12:28,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1230 places, 1669 transitions, 162481 flow [2022-12-06 18:12:28,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 18:12:28,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 18:12:28,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3005 transitions. [2022-12-06 18:12:28,509 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6630626654898499 [2022-12-06 18:12:28,509 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1045 predicate places. [2022-12-06 18:12:28,509 INFO L495 AbstractCegarLoop]: Abstraction has has 1230 places, 1669 transitions, 162481 flow [2022-12-06 18:12:28,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:28,510 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:12:28,510 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:12:28,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-06 18:12:28,510 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:12:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:12:28,510 INFO L85 PathProgramCache]: Analyzing trace with hash -461191259, now seen corresponding path program 52 times [2022-12-06 18:12:28,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:12:28,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783817283] [2022-12-06 18:12:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:12:28,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:12:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:12:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:12:29,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:12:29,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783817283] [2022-12-06 18:12:29,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783817283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:12:29,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:12:29,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:12:29,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667242292] [2022-12-06 18:12:29,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:12:29,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:12:29,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:12:29,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:12:29,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:12:29,204 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:12:29,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1230 places, 1669 transitions, 162481 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:29,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:12:29,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:12:29,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:12:36,646 INFO L130 PetriNetUnfolder]: 2883/8223 cut-off events. [2022-12-06 18:12:36,646 INFO L131 PetriNetUnfolder]: For 1885866/1933866 co-relation queries the response was YES. [2022-12-06 18:12:36,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285407 conditions, 8223 events. 2883/8223 cut-off events. For 1885866/1933866 co-relation queries the response was YES. Maximal size of possible extension queue 649. Compared 83146 event pairs, 350 based on Foata normal form. 114/7748 useless extension candidates. Maximal degree in co-relation 222078. Up to 4435 conditions per place. [2022-12-06 18:12:36,927 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1084 selfloop transitions, 100 changer transitions 386/1695 dead transitions. [2022-12-06 18:12:36,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1250 places, 1695 transitions, 168316 flow [2022-12-06 18:12:36,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:12:36,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:12:36,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2868 transitions. [2022-12-06 18:12:36,929 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6629680998613038 [2022-12-06 18:12:36,930 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1065 predicate places. [2022-12-06 18:12:36,930 INFO L495 AbstractCegarLoop]: Abstraction has has 1250 places, 1695 transitions, 168316 flow [2022-12-06 18:12:36,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:36,930 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:12:36,930 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:12:36,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-06 18:12:36,930 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:12:36,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:12:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1930014815, now seen corresponding path program 53 times [2022-12-06 18:12:36,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:12:36,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620148598] [2022-12-06 18:12:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:12:36,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:12:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:12:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:12:37,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:12:37,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620148598] [2022-12-06 18:12:37,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620148598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:12:37,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:12:37,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:12:37,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825935971] [2022-12-06 18:12:37,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:12:37,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:12:37,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:12:37,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:12:37,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:12:37,750 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:12:37,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1250 places, 1695 transitions, 168316 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:37,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:12:37,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:12:37,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:12:44,908 INFO L130 PetriNetUnfolder]: 2883/8198 cut-off events. [2022-12-06 18:12:44,908 INFO L131 PetriNetUnfolder]: For 1959497/2007551 co-relation queries the response was YES. [2022-12-06 18:12:44,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290595 conditions, 8198 events. 2883/8198 cut-off events. For 1959497/2007551 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 83293 event pairs, 337 based on Foata normal form. 126/7742 useless extension candidates. Maximal degree in co-relation 226212. Up to 4434 conditions per place. [2022-12-06 18:12:45,204 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1087 selfloop transitions, 98 changer transitions 391/1701 dead transitions. [2022-12-06 18:12:45,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1270 places, 1701 transitions, 172105 flow [2022-12-06 18:12:45,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:12:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:12:45,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2861 transitions. [2022-12-06 18:12:45,206 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6613499768839575 [2022-12-06 18:12:45,207 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1085 predicate places. [2022-12-06 18:12:45,207 INFO L495 AbstractCegarLoop]: Abstraction has has 1270 places, 1701 transitions, 172105 flow [2022-12-06 18:12:45,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:45,207 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:12:45,207 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:12:45,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-06 18:12:45,208 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:12:45,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:12:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash 145931555, now seen corresponding path program 54 times [2022-12-06 18:12:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:12:45,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811760008] [2022-12-06 18:12:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:12:45,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:12:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:12:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:12:46,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:12:46,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811760008] [2022-12-06 18:12:46,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811760008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:12:46,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:12:46,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:12:46,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653395442] [2022-12-06 18:12:46,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:12:46,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:12:46,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:12:46,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:12:46,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:12:46,121 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:12:46,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1270 places, 1701 transitions, 172105 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:46,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:12:46,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:12:46,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:12:53,566 INFO L130 PetriNetUnfolder]: 2886/8235 cut-off events. [2022-12-06 18:12:53,566 INFO L131 PetriNetUnfolder]: For 2032154/2082940 co-relation queries the response was YES. [2022-12-06 18:12:53,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296109 conditions, 8235 events. 2886/8235 cut-off events. For 2032154/2082940 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 83943 event pairs, 287 based on Foata normal form. 131/7792 useless extension candidates. Maximal degree in co-relation 230847. Up to 4438 conditions per place. [2022-12-06 18:12:53,818 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1088 selfloop transitions, 101 changer transitions 396/1710 dead transitions. [2022-12-06 18:12:53,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1290 places, 1710 transitions, 176249 flow [2022-12-06 18:12:53,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:12:53,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:12:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2863 transitions. [2022-12-06 18:12:53,821 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6618122977346278 [2022-12-06 18:12:53,821 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1105 predicate places. [2022-12-06 18:12:53,821 INFO L495 AbstractCegarLoop]: Abstraction has has 1290 places, 1710 transitions, 176249 flow [2022-12-06 18:12:53,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:53,821 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:12:53,823 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:12:53,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-06 18:12:53,823 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:12:53,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:12:53,823 INFO L85 PathProgramCache]: Analyzing trace with hash 458319209, now seen corresponding path program 55 times [2022-12-06 18:12:53,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:12:53,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541335317] [2022-12-06 18:12:53,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:12:53,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:12:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:12:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:12:54,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:12:54,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541335317] [2022-12-06 18:12:54,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541335317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:12:54,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:12:54,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:12:54,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712434361] [2022-12-06 18:12:54,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:12:54,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:12:54,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:12:54,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:12:54,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:12:54,736 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:12:54,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1290 places, 1710 transitions, 176249 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:12:54,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:12:54,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:12:54,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:13:00,972 INFO L130 PetriNetUnfolder]: 2892/8228 cut-off events. [2022-12-06 18:13:00,973 INFO L131 PetriNetUnfolder]: For 2097402/2148368 co-relation queries the response was YES. [2022-12-06 18:13:00,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302542 conditions, 8228 events. 2892/8228 cut-off events. For 2097402/2148368 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 83596 event pairs, 368 based on Foata normal form. 118/7766 useless extension candidates. Maximal degree in co-relation 235562. Up to 4455 conditions per place. [2022-12-06 18:13:01,189 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1101 selfloop transitions, 96 changer transitions 402/1724 dead transitions. [2022-12-06 18:13:01,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1310 places, 1724 transitions, 180976 flow [2022-12-06 18:13:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:13:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:13:01,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2860 transitions. [2022-12-06 18:13:01,191 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6611188164586222 [2022-12-06 18:13:01,192 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1125 predicate places. [2022-12-06 18:13:01,192 INFO L495 AbstractCegarLoop]: Abstraction has has 1310 places, 1724 transitions, 180976 flow [2022-12-06 18:13:01,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:01,192 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:13:01,192 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:13:01,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-06 18:13:01,192 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:13:01,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:13:01,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1798464173, now seen corresponding path program 56 times [2022-12-06 18:13:01,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:13:01,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635053409] [2022-12-06 18:13:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:13:01,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:13:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:13:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:13:01,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:13:01,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635053409] [2022-12-06 18:13:01,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635053409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:13:01,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:13:01,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:13:01,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312652825] [2022-12-06 18:13:01,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:13:01,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:13:01,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:13:01,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:13:01,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:13:01,823 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:13:01,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1310 places, 1724 transitions, 180976 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:01,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:13:01,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:13:01,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:13:08,683 INFO L130 PetriNetUnfolder]: 2898/8229 cut-off events. [2022-12-06 18:13:08,684 INFO L131 PetriNetUnfolder]: For 2224634/2284439 co-relation queries the response was YES. [2022-12-06 18:13:08,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308273 conditions, 8229 events. 2898/8229 cut-off events. For 2224634/2284439 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 83403 event pairs, 402 based on Foata normal form. 114/7759 useless extension candidates. Maximal degree in co-relation 240186. Up to 4457 conditions per place. [2022-12-06 18:13:08,828 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1101 selfloop transitions, 104 changer transitions 407/1737 dead transitions. [2022-12-06 18:13:08,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1330 places, 1737 transitions, 185656 flow [2022-12-06 18:13:08,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:13:08,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:13:08,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2867 transitions. [2022-12-06 18:13:08,830 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6627369394359686 [2022-12-06 18:13:08,831 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1145 predicate places. [2022-12-06 18:13:08,831 INFO L495 AbstractCegarLoop]: Abstraction has has 1330 places, 1737 transitions, 185656 flow [2022-12-06 18:13:08,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:08,831 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:13:08,831 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:13:08,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-06 18:13:08,831 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:13:08,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:13:08,832 INFO L85 PathProgramCache]: Analyzing trace with hash -570477351, now seen corresponding path program 57 times [2022-12-06 18:13:08,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:13:08,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120448272] [2022-12-06 18:13:08,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:13:08,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:13:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:13:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:13:09,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:13:09,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120448272] [2022-12-06 18:13:09,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120448272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:13:09,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:13:09,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 18:13:09,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83803245] [2022-12-06 18:13:09,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:13:09,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 18:13:09,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:13:09,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 18:13:09,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-06 18:13:09,555 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-06 18:13:09,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1330 places, 1737 transitions, 185656 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:09,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:13:09,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-06 18:13:09,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:13:16,626 INFO L130 PetriNetUnfolder]: 2898/8262 cut-off events. [2022-12-06 18:13:16,627 INFO L131 PetriNetUnfolder]: For 2277986/2335701 co-relation queries the response was YES. [2022-12-06 18:13:16,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313547 conditions, 8262 events. 2898/8262 cut-off events. For 2277986/2335701 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 84232 event pairs, 302 based on Foata normal form. 124/7820 useless extension candidates. Maximal degree in co-relation 250862. Up to 4456 conditions per place. [2022-12-06 18:13:16,775 INFO L137 encePairwiseOnDemand]: 181/206 looper letters, 1106 selfloop transitions, 102 changer transitions 412/1745 dead transitions. [2022-12-06 18:13:16,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1350 places, 1745 transitions, 189808 flow [2022-12-06 18:13:16,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 18:13:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 18:13:16,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2865 transitions. [2022-12-06 18:13:16,778 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6622746185852982 [2022-12-06 18:13:16,778 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1165 predicate places. [2022-12-06 18:13:16,779 INFO L495 AbstractCegarLoop]: Abstraction has has 1350 places, 1745 transitions, 189808 flow [2022-12-06 18:13:16,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:16,779 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:13:16,779 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:13:16,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-06 18:13:16,779 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:13:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:13:16,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1546174950, now seen corresponding path program 1 times [2022-12-06 18:13:16,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:13:16,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552593912] [2022-12-06 18:13:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:13:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:13:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:13:16,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:13:16,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:13:16,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552593912] [2022-12-06 18:13:16,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552593912] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:13:16,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361252580] [2022-12-06 18:13:16,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:13:16,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:13:16,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:13:16,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:13:16,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 18:13:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:13:17,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-06 18:13:17,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:13:17,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:13:17,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 18:13:17,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361252580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:13:17,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 18:13:17,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-12-06 18:13:17,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289525532] [2022-12-06 18:13:17,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:13:17,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 18:13:17,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:13:17,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 18:13:17,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 18:13:17,399 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 206 [2022-12-06 18:13:17,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1350 places, 1745 transitions, 189808 flow. Second operand has 4 states, 4 states have (on average 180.75) internal successors, (723), 4 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:17,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:13:17,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 206 [2022-12-06 18:13:17,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:13:26,480 INFO L130 PetriNetUnfolder]: 3773/10569 cut-off events. [2022-12-06 18:13:26,480 INFO L131 PetriNetUnfolder]: For 2883317/2939182 co-relation queries the response was YES. [2022-12-06 18:13:26,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402800 conditions, 10569 events. 3773/10569 cut-off events. For 2883317/2939182 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 113853 event pairs, 656 based on Foata normal form. 274/10042 useless extension candidates. Maximal degree in co-relation 322455. Up to 5814 conditions per place. [2022-12-06 18:13:26,757 INFO L137 encePairwiseOnDemand]: 203/206 looper letters, 637 selfloop transitions, 254 changer transitions 487/2015 dead transitions. [2022-12-06 18:13:26,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1353 places, 2015 transitions, 225680 flow [2022-12-06 18:13:26,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 18:13:26,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 18:13:26,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 741 transitions. [2022-12-06 18:13:26,759 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8992718446601942 [2022-12-06 18:13:26,759 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1168 predicate places. [2022-12-06 18:13:26,759 INFO L495 AbstractCegarLoop]: Abstraction has has 1353 places, 2015 transitions, 225680 flow [2022-12-06 18:13:26,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 180.75) internal successors, (723), 4 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:26,759 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:13:26,759 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:13:26,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 18:13:26,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:13:26,967 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:13:26,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:13:26,968 INFO L85 PathProgramCache]: Analyzing trace with hash -837704276, now seen corresponding path program 1 times [2022-12-06 18:13:26,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:13:26,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300505147] [2022-12-06 18:13:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:13:26,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:13:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:13:27,097 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:13:27,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:13:27,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300505147] [2022-12-06 18:13:27,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300505147] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:13:27,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010508805] [2022-12-06 18:13:27,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:13:27,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:13:27,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:13:27,099 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:13:27,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 18:13:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:13:27,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 18:13:27,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:13:27,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:13:27,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:13:27,727 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:13:27,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010508805] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:13:27,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:13:27,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-06 18:13:27,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887849754] [2022-12-06 18:13:27,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:13:27,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 18:13:27,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:13:27,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 18:13:27,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-12-06 18:13:27,730 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 206 [2022-12-06 18:13:27,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1353 places, 2015 transitions, 225680 flow. Second operand has 19 states, 19 states have (on average 154.68421052631578) internal successors, (2939), 19 states have internal predecessors, (2939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:27,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:13:27,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 206 [2022-12-06 18:13:27,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:13:43,518 INFO L130 PetriNetUnfolder]: 5253/16028 cut-off events. [2022-12-06 18:13:43,519 INFO L131 PetriNetUnfolder]: For 4445527/4546039 co-relation queries the response was YES. [2022-12-06 18:13:43,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602153 conditions, 16028 events. 5253/16028 cut-off events. For 4445527/4546039 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 190986 event pairs, 941 based on Foata normal form. 545/15332 useless extension candidates. Maximal degree in co-relation 341949. Up to 8664 conditions per place. [2022-12-06 18:13:43,990 INFO L137 encePairwiseOnDemand]: 193/206 looper letters, 950 selfloop transitions, 20 changer transitions 1086/2659 dead transitions. [2022-12-06 18:13:43,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1366 places, 2659 transitions, 309076 flow [2022-12-06 18:13:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 18:13:43,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 18:13:43,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2190 transitions. [2022-12-06 18:13:43,992 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7593619972260749 [2022-12-06 18:13:43,992 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1181 predicate places. [2022-12-06 18:13:43,993 INFO L495 AbstractCegarLoop]: Abstraction has has 1366 places, 2659 transitions, 309076 flow [2022-12-06 18:13:43,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 154.68421052631578) internal successors, (2939), 19 states have internal predecessors, (2939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:43,993 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:13:43,993 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:13:44,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 18:13:44,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2022-12-06 18:13:44,202 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:13:44,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:13:44,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1081293604, now seen corresponding path program 1 times [2022-12-06 18:13:44,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:13:44,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218639835] [2022-12-06 18:13:44,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:13:44,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:13:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:13:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:13:44,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:13:44,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218639835] [2022-12-06 18:13:44,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218639835] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:13:44,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020018965] [2022-12-06 18:13:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:13:44,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:13:44,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:13:44,339 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:13:44,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 18:13:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:13:44,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 18:13:44,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:13:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:13:44,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:13:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:13:45,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020018965] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:13:45,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:13:45,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-06 18:13:45,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980981783] [2022-12-06 18:13:45,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:13:45,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 18:13:45,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:13:45,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 18:13:45,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-12-06 18:13:45,150 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 206 [2022-12-06 18:13:45,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1366 places, 2659 transitions, 309076 flow. Second operand has 19 states, 19 states have (on average 154.73684210526315) internal successors, (2940), 19 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:13:45,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:13:45,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 206 [2022-12-06 18:13:45,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:14:37,527 INFO L130 PetriNetUnfolder]: 9705/30066 cut-off events. [2022-12-06 18:14:37,528 INFO L131 PetriNetUnfolder]: For 8885033/9073528 co-relation queries the response was YES. [2022-12-06 18:14:37,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135988 conditions, 30066 events. 9705/30066 cut-off events. For 8885033/9073528 co-relation queries the response was YES. Maximal size of possible extension queue 1823. Compared 397520 event pairs, 1771 based on Foata normal form. 410/28100 useless extension candidates. Maximal degree in co-relation 327239. Up to 16196 conditions per place. [2022-12-06 18:14:38,100 INFO L137 encePairwiseOnDemand]: 190/206 looper letters, 1824 selfloop transitions, 32 changer transitions 1949/4408 dead transitions. [2022-12-06 18:14:38,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1385 places, 4408 transitions, 535957 flow [2022-12-06 18:14:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 18:14:38,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 18:14:38,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3116 transitions. [2022-12-06 18:14:38,103 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7563106796116504 [2022-12-06 18:14:38,103 INFO L294 CegarLoopForPetriNet]: 185 programPoint places, 1200 predicate places. [2022-12-06 18:14:38,103 INFO L495 AbstractCegarLoop]: Abstraction has has 1385 places, 4408 transitions, 535957 flow [2022-12-06 18:14:38,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 154.73684210526315) internal successors, (2940), 19 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:14:38,103 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:14:38,104 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:14:38,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 18:14:38,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:14:38,311 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 18:14:38,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:14:38,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1241837190, now seen corresponding path program 2 times [2022-12-06 18:14:38,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:14:38,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22943150] [2022-12-06 18:14:38,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:14:38,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:14:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:14:39,372 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:14:39,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:14:39,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22943150] [2022-12-06 18:14:39,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22943150] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:14:39,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505905209] [2022-12-06 18:14:39,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 18:14:39,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:14:39,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:14:39,392 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:14:39,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 18:14:39,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 18:14:39,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:14:39,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-06 18:14:39,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:14:41,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 18:14:41,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 18:14:41,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2022-12-06 18:14:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:14:41,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:14:41,599 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-12-06 18:14:41,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-12-06 18:14:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:14:42,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505905209] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:14:42,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:14:42,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23, 18] total 55 [2022-12-06 18:14:42,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741825442] [2022-12-06 18:14:42,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:14:42,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-06 18:14:42,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:14:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-06 18:14:42,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-12-06 18:14:42,761 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 206 [2022-12-06 18:14:42,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1385 places, 4408 transitions, 535957 flow. Second operand has 55 states, 55 states have (on average 90.78181818181818) internal successors, (4993), 55 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 18:14:42,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:14:42,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 206 [2022-12-06 18:14:42,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 18:23:01,547 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 18:23:01,547 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 18:23:02,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-06 18:23:02,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-12-06 18:23:03,243 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 18:23:03,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-06 18:23:03,244 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-12-06 18:23:03,245 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 18:23:03,245 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 18:23:03,245 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 18:23:03,246 INFO L458 BasicCegarLoop]: Path program histogram: [57, 2, 1, 1, 1, 1, 1] [2022-12-06 18:23:03,253 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 18:23:03,253 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 18:23:03,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:23:03 BasicIcfg [2022-12-06 18:23:03,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 18:23:03,265 INFO L158 Benchmark]: Toolchain (without parser) took 806083.33ms. Allocated memory was 210.8MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 184.8MB in the beginning and 412.4MB in the end (delta: -227.6MB). Peak memory consumption was 7.0GB. Max. memory is 8.0GB. [2022-12-06 18:23:03,265 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 187.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 18:23:03,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.26ms. Allocated memory is still 210.8MB. Free memory was 184.8MB in the beginning and 171.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 18:23:03,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.86ms. Allocated memory is still 210.8MB. Free memory was 171.2MB in the beginning and 169.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 18:23:03,265 INFO L158 Benchmark]: Boogie Preprocessor took 39.04ms. Allocated memory is still 210.8MB. Free memory was 169.1MB in the beginning and 167.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 18:23:03,265 INFO L158 Benchmark]: RCFGBuilder took 667.13ms. Allocated memory is still 210.8MB. Free memory was 167.0MB in the beginning and 133.4MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-12-06 18:23:03,266 INFO L158 Benchmark]: TraceAbstraction took 805042.89ms. Allocated memory was 210.8MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 132.9MB in the beginning and 412.4MB in the end (delta: -279.5MB). Peak memory consumption was 6.9GB. Max. memory is 8.0GB. [2022-12-06 18:23:03,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 187.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.26ms. Allocated memory is still 210.8MB. Free memory was 184.8MB in the beginning and 171.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.86ms. Allocated memory is still 210.8MB. Free memory was 171.2MB in the beginning and 169.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.04ms. Allocated memory is still 210.8MB. Free memory was 169.1MB in the beginning and 167.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 667.13ms. Allocated memory is still 210.8MB. Free memory was 167.0MB in the beginning and 133.4MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 805042.89ms. Allocated memory was 210.8MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 132.9MB in the beginning and 412.4MB in the end (delta: -279.5MB). Peak memory consumption was 6.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 225 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 804.9s, OverallIterations: 64, TraceHistogramMax: 2, PathProgramHistogramMax: 57, EmptinessCheckTime: 0.0s, AutomataDifference: 754.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10879 SdHoareTripleChecker+Valid, 19.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10879 mSDsluCounter, 21648 SdHoareTripleChecker+Invalid, 16.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18858 mSDsCounter, 934 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42586 IncrementalHoareTripleChecker+Invalid, 43520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 934 mSolverCounterUnsat, 2790 mSDtfsCounter, 42586 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2787 GetRequests, 1284 SyntacticMatches, 3 SemanticMatches, 1500 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13310 ImplicationChecksByTransitivity, 21.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=535957occurred in iteration=63, InterpolantAutomatonStates: 1263, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 45.0s InterpolantComputationTime, 11304 NumberOfCodeBlocks, 11304 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 11756 ConstructedInterpolants, 0 QuantifiedInterpolants, 171319 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1755 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 71 InterpolantComputations, 61 PerfectInterpolantSequences, 149/195 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 !ENTRY org.eclipse.osgi 4 0 2022-12-06 18:23:03.309 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a8f9d4c/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a8f9d4c/.metadata/.log.