/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:43:37,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:43:37,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:43:37,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:43:37,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:43:37,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:43:37,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:43:37,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:43:37,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:43:37,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:43:37,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:43:37,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:43:37,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:43:37,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:43:37,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:43:37,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:43:37,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:43:37,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:43:37,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:43:37,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:43:37,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:43:37,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:43:37,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:43:37,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:43:37,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:43:37,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:43:37,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:43:37,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:43:37,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:43:37,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:43:37,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:43:37,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:43:37,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:43:37,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:43:37,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:43:37,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:43:37,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:43:37,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:43:37,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:43:37,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:43:37,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:43:37,654 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 23:43:37,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:43:37,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:43:37,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:43:37,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:43:37,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:43:37,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:43:37,688 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:43:37,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:43:37,689 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:43:37,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:43:37,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:43:37,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:43:37,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:43:37,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:43:37,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:43:37,690 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:43:37,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:43:37,690 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:43:37,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:43:37,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:43:37,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:43:37,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:43:37,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:43:37,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:43:37,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:43:37,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:43:37,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:43:37,691 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:43:37,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:43:37,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:43:37,691 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:43:37,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:43:37,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:43:38,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:43:38,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:43:38,004 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:43:38,004 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:43:38,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2022-12-11 23:43:39,008 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:43:39,358 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:43:39,359 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2022-12-11 23:43:39,379 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58e3890c9/5d85bc1dafb74d8aa04ab39d06cdebd4/FLAG90af84a68 [2022-12-11 23:43:39,396 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58e3890c9/5d85bc1dafb74d8aa04ab39d06cdebd4 [2022-12-11 23:43:39,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:43:39,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:43:39,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:43:39,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:43:39,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:43:39,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:43:39" (1/1) ... [2022-12-11 23:43:39,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787b7cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:39, skipping insertion in model container [2022-12-11 23:43:39,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:43:39" (1/1) ... [2022-12-11 23:43:39,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:43:39,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:43:39,988 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-12-11 23:43:40,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:43:40,034 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:43:40,095 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-12-11 23:43:40,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:43:40,234 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:43:40,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40 WrapperNode [2022-12-11 23:43:40,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:43:40,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:43:40,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:43:40,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:43:40,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,314 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-12-11 23:43:40,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:43:40,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:43:40,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:43:40,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:43:40,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,371 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:43:40,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:43:40,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:43:40,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:43:40,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (1/1) ... [2022-12-11 23:43:40,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:43:40,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:43:40,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 23:43:40,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 23:43:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:43:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 23:43:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 23:43:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:43:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-11 23:43:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:43:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:43:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-11 23:43:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-11 23:43:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:43:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:43:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:43:40,466 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:43:40,763 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:43:40,765 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:43:40,988 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:43:40,994 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:43:40,994 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:43:40,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:43:40 BoogieIcfgContainer [2022-12-11 23:43:40,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:43:40,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:43:40,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:43:41,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:43:41,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:43:39" (1/3) ... [2022-12-11 23:43:41,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab46a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:43:41, skipping insertion in model container [2022-12-11 23:43:41,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:40" (2/3) ... [2022-12-11 23:43:41,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab46a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:43:41, skipping insertion in model container [2022-12-11 23:43:41,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:43:40" (3/3) ... [2022-12-11 23:43:41,007 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-12-11 23:43:41,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:43:41,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-11 23:43:41,022 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:43:41,119 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 23:43:41,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 173 transitions, 362 flow [2022-12-11 23:43:41,295 INFO L130 PetriNetUnfolder]: 10/211 cut-off events. [2022-12-11 23:43:41,295 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 23:43:41,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 211 events. 10/211 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 357 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 124. Up to 4 conditions per place. [2022-12-11 23:43:41,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 173 transitions, 362 flow [2022-12-11 23:43:41,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 161 transitions, 334 flow [2022-12-11 23:43:41,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:43:41,330 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;@7bdaf4f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:43:41,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-11 23:43:41,344 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-12-11 23:43:41,345 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:43:41,346 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:41,346 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:41,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:41,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash -642317917, now seen corresponding path program 1 times [2022-12-11 23:43:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:41,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130859651] [2022-12-11 23:43:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:41,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:42,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:42,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:42,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130859651] [2022-12-11 23:43:42,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130859651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:42,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:42,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:42,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559469051] [2022-12-11 23:43:42,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:42,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:42,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:42,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:42,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:42,158 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 173 [2022-12-11 23:43:42,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 161 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 98.33333333333333) internal successors, (590), 6 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:42,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:42,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 173 [2022-12-11 23:43:42,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:42,571 INFO L130 PetriNetUnfolder]: 361/1017 cut-off events. [2022-12-11 23:43:42,571 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-11 23:43:42,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1017 events. 361/1017 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6059 event pairs, 216 based on Foata normal form. 20/983 useless extension candidates. Maximal degree in co-relation 1478. Up to 397 conditions per place. [2022-12-11 23:43:42,585 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 53 selfloop transitions, 17 changer transitions 1/157 dead transitions. [2022-12-11 23:43:42,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 157 transitions, 468 flow [2022-12-11 23:43:42,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 23:43:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 23:43:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 940 transitions. [2022-12-11 23:43:42,607 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6037251123956326 [2022-12-11 23:43:42,611 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 1 predicate places. [2022-12-11 23:43:42,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 157 transitions, 468 flow [2022-12-11 23:43:42,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 156 transitions, 464 flow [2022-12-11 23:43:42,620 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 156 transitions, 464 flow [2022-12-11 23:43:42,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.33333333333333) internal successors, (590), 6 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:42,620 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:42,621 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:42,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:43:42,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:42,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash 246970785, now seen corresponding path program 1 times [2022-12-11 23:43:42,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:42,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844822054] [2022-12-11 23:43:42,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:42,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:42,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:42,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844822054] [2022-12-11 23:43:42,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844822054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:42,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:42,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:42,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626176920] [2022-12-11 23:43:42,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:42,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:42,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:42,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:42,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:42,890 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 173 [2022-12-11 23:43:42,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 156 transitions, 464 flow. Second operand has 6 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:42,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:42,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 173 [2022-12-11 23:43:42,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:43,163 INFO L130 PetriNetUnfolder]: 361/955 cut-off events. [2022-12-11 23:43:43,164 INFO L131 PetriNetUnfolder]: For 86/326 co-relation queries the response was YES. [2022-12-11 23:43:43,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2321 conditions, 955 events. 361/955 cut-off events. For 86/326 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5578 event pairs, 120 based on Foata normal form. 0/903 useless extension candidates. Maximal degree in co-relation 2014. Up to 400 conditions per place. [2022-12-11 23:43:43,172 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 61 selfloop transitions, 18 changer transitions 0/164 dead transitions. [2022-12-11 23:43:43,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 656 flow [2022-12-11 23:43:43,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:43:43,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:43:43,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1040 transitions. [2022-12-11 23:43:43,177 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6011560693641619 [2022-12-11 23:43:43,178 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 8 predicate places. [2022-12-11 23:43:43,178 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 164 transitions, 656 flow [2022-12-11 23:43:43,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 164 transitions, 656 flow [2022-12-11 23:43:43,190 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 164 transitions, 656 flow [2022-12-11 23:43:43,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:43,195 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:43,195 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:43,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:43:43,196 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:43,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:43,197 INFO L85 PathProgramCache]: Analyzing trace with hash -518565785, now seen corresponding path program 1 times [2022-12-11 23:43:43,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:43,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322642678] [2022-12-11 23:43:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:43,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:43,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:43,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322642678] [2022-12-11 23:43:43,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322642678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:43,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:43,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377109656] [2022-12-11 23:43:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:43,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:43,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:43,545 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 173 [2022-12-11 23:43:43,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 98.33333333333333) internal successors, (590), 6 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:43,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:43,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 173 [2022-12-11 23:43:43,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:44,092 INFO L130 PetriNetUnfolder]: 832/1964 cut-off events. [2022-12-11 23:43:44,093 INFO L131 PetriNetUnfolder]: For 318/522 co-relation queries the response was YES. [2022-12-11 23:43:44,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6283 conditions, 1964 events. 832/1964 cut-off events. For 318/522 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12757 event pairs, 104 based on Foata normal form. 0/1922 useless extension candidates. Maximal degree in co-relation 5905. Up to 884 conditions per place. [2022-12-11 23:43:44,108 INFO L137 encePairwiseOnDemand]: 152/173 looper letters, 117 selfloop transitions, 59 changer transitions 0/261 dead transitions. [2022-12-11 23:43:44,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 261 transitions, 1582 flow [2022-12-11 23:43:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:43:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:43:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1371 transitions. [2022-12-11 23:43:44,112 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6096042685638061 [2022-12-11 23:43:44,113 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 20 predicate places. [2022-12-11 23:43:44,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 261 transitions, 1582 flow [2022-12-11 23:43:44,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 261 transitions, 1582 flow [2022-12-11 23:43:44,127 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 261 transitions, 1582 flow [2022-12-11 23:43:44,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.33333333333333) internal successors, (590), 6 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:44,128 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:44,128 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:44,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:43:44,129 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:44,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:44,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1851995507, now seen corresponding path program 1 times [2022-12-11 23:43:44,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:44,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403738035] [2022-12-11 23:43:44,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:44,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:44,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:44,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403738035] [2022-12-11 23:43:44,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403738035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:44,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:44,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:44,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622659827] [2022-12-11 23:43:44,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:44,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:44,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:44,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:44,431 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 173 [2022-12-11 23:43:44,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 261 transitions, 1582 flow. Second operand has 6 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:44,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:44,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 173 [2022-12-11 23:43:44,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:45,053 INFO L130 PetriNetUnfolder]: 1144/2531 cut-off events. [2022-12-11 23:43:45,053 INFO L131 PetriNetUnfolder]: For 825/1145 co-relation queries the response was YES. [2022-12-11 23:43:45,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10417 conditions, 2531 events. 1144/2531 cut-off events. For 825/1145 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 17075 event pairs, 109 based on Foata normal form. 47/2521 useless extension candidates. Maximal degree in co-relation 9971. Up to 1197 conditions per place. [2022-12-11 23:43:45,075 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 127 selfloop transitions, 53 changer transitions 99/364 dead transitions. [2022-12-11 23:43:45,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 364 transitions, 2958 flow [2022-12-11 23:43:45,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 23:43:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 23:43:45,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1164 transitions. [2022-12-11 23:43:45,078 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6116657908565423 [2022-12-11 23:43:45,080 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 30 predicate places. [2022-12-11 23:43:45,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 364 transitions, 2958 flow [2022-12-11 23:43:45,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 265 transitions, 1992 flow [2022-12-11 23:43:45,099 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 265 transitions, 1992 flow [2022-12-11 23:43:45,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:45,100 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:45,100 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:45,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:43:45,101 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:45,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:45,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2055893318, now seen corresponding path program 1 times [2022-12-11 23:43:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:45,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188908565] [2022-12-11 23:43:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:45,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:45,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:45,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188908565] [2022-12-11 23:43:45,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188908565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:45,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:45,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 23:43:45,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163538838] [2022-12-11 23:43:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:45,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 23:43:45,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:45,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 23:43:45,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-11 23:43:45,259 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 173 [2022-12-11 23:43:45,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 265 transitions, 1992 flow. Second operand has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:45,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:45,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 173 [2022-12-11 23:43:45,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:45,333 INFO L130 PetriNetUnfolder]: 72/341 cut-off events. [2022-12-11 23:43:45,333 INFO L131 PetriNetUnfolder]: For 211/279 co-relation queries the response was YES. [2022-12-11 23:43:45,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 341 events. 72/341 cut-off events. For 211/279 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1280 event pairs, 72 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 698. Up to 152 conditions per place. [2022-12-11 23:43:45,336 INFO L137 encePairwiseOnDemand]: 168/173 looper letters, 9 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2022-12-11 23:43:45,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 124 transitions, 666 flow [2022-12-11 23:43:45,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 23:43:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 23:43:45,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 890 transitions. [2022-12-11 23:43:45,339 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8574181117533719 [2022-12-11 23:43:45,342 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, -4 predicate places. [2022-12-11 23:43:45,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 124 transitions, 666 flow [2022-12-11 23:43:45,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 124 transitions, 666 flow [2022-12-11 23:43:45,348 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 124 transitions, 666 flow [2022-12-11 23:43:45,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:45,349 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:45,350 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:45,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:43:45,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:45,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1769590398, now seen corresponding path program 1 times [2022-12-11 23:43:45,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:45,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125884161] [2022-12-11 23:43:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:45,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:47,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:47,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125884161] [2022-12-11 23:43:47,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125884161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:47,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:47,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 23:43:47,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947350781] [2022-12-11 23:43:47,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:47,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 23:43:47,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:47,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 23:43:47,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-12-11 23:43:47,286 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 173 [2022-12-11 23:43:47,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 124 transitions, 666 flow. Second operand has 16 states, 16 states have (on average 77.8125) internal successors, (1245), 16 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:47,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:47,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 173 [2022-12-11 23:43:47,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:48,356 INFO L130 PetriNetUnfolder]: 479/1215 cut-off events. [2022-12-11 23:43:48,356 INFO L131 PetriNetUnfolder]: For 2842/3066 co-relation queries the response was YES. [2022-12-11 23:43:48,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4391 conditions, 1215 events. 479/1215 cut-off events. For 2842/3066 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6983 event pairs, 192 based on Foata normal form. 0/1182 useless extension candidates. Maximal degree in co-relation 3373. Up to 537 conditions per place. [2022-12-11 23:43:48,365 INFO L137 encePairwiseOnDemand]: 149/173 looper letters, 103 selfloop transitions, 29 changer transitions 0/188 dead transitions. [2022-12-11 23:43:48,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 188 transitions, 1451 flow [2022-12-11 23:43:48,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-11 23:43:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-11 23:43:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1835 transitions. [2022-12-11 23:43:48,370 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.46117114852978136 [2022-12-11 23:43:48,370 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 18 predicate places. [2022-12-11 23:43:48,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 188 transitions, 1451 flow [2022-12-11 23:43:48,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 188 transitions, 1451 flow [2022-12-11 23:43:48,378 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 188 transitions, 1451 flow [2022-12-11 23:43:48,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 77.8125) internal successors, (1245), 16 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:48,379 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:48,379 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:48,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:43:48,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:48,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:48,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1414158520, now seen corresponding path program 2 times [2022-12-11 23:43:48,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:48,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503535859] [2022-12-11 23:43:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:48,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:49,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:49,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503535859] [2022-12-11 23:43:49,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503535859] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:49,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:49,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:43:49,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80603146] [2022-12-11 23:43:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:49,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:43:49,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:49,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:43:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:43:49,254 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:43:49,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 188 transitions, 1451 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:49,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:49,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:43:49,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:49,730 INFO L130 PetriNetUnfolder]: 899/2034 cut-off events. [2022-12-11 23:43:49,731 INFO L131 PetriNetUnfolder]: For 6528/6707 co-relation queries the response was YES. [2022-12-11 23:43:49,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8226 conditions, 2034 events. 899/2034 cut-off events. For 6528/6707 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 13162 event pairs, 171 based on Foata normal form. 89/2069 useless extension candidates. Maximal degree in co-relation 7642. Up to 855 conditions per place. [2022-12-11 23:43:49,749 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 147 selfloop transitions, 19 changer transitions 0/293 dead transitions. [2022-12-11 23:43:49,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 293 transitions, 2684 flow [2022-12-11 23:43:49,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:43:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:43:49,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1030 transitions. [2022-12-11 23:43:49,753 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8505367464905037 [2022-12-11 23:43:49,753 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 24 predicate places. [2022-12-11 23:43:49,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 293 transitions, 2684 flow [2022-12-11 23:43:49,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 293 transitions, 2684 flow [2022-12-11 23:43:49,767 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 293 transitions, 2684 flow [2022-12-11 23:43:49,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:49,768 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:49,768 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:49,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:43:49,769 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:49,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:49,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1378955538, now seen corresponding path program 3 times [2022-12-11 23:43:49,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:49,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104846432] [2022-12-11 23:43:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:49,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:51,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:51,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104846432] [2022-12-11 23:43:51,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104846432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:51,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:51,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 23:43:51,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882575684] [2022-12-11 23:43:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:51,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 23:43:51,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:51,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 23:43:51,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-12-11 23:43:51,302 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 173 [2022-12-11 23:43:51,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 293 transitions, 2684 flow. Second operand has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:51,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:51,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 173 [2022-12-11 23:43:51,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:52,352 INFO L130 PetriNetUnfolder]: 1343/3106 cut-off events. [2022-12-11 23:43:52,352 INFO L131 PetriNetUnfolder]: For 10843/11938 co-relation queries the response was YES. [2022-12-11 23:43:52,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14074 conditions, 3106 events. 1343/3106 cut-off events. For 10843/11938 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 22695 event pairs, 123 based on Foata normal form. 8/3064 useless extension candidates. Maximal degree in co-relation 11805. Up to 1259 conditions per place. [2022-12-11 23:43:52,377 INFO L137 encePairwiseOnDemand]: 148/173 looper letters, 275 selfloop transitions, 61 changer transitions 0/437 dead transitions. [2022-12-11 23:43:52,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 437 transitions, 5107 flow [2022-12-11 23:43:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 23:43:52,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 23:43:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1388 transitions. [2022-12-11 23:43:52,382 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47194831689901395 [2022-12-11 23:43:52,384 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 40 predicate places. [2022-12-11 23:43:52,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 437 transitions, 5107 flow [2022-12-11 23:43:52,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 437 transitions, 5107 flow [2022-12-11 23:43:52,404 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 437 transitions, 5107 flow [2022-12-11 23:43:52,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:52,405 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:52,405 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:52,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 23:43:52,406 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:52,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1646924932, now seen corresponding path program 4 times [2022-12-11 23:43:52,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:52,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857134491] [2022-12-11 23:43:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:52,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:53,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:53,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857134491] [2022-12-11 23:43:53,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857134491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:53,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:53,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:43:53,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421595676] [2022-12-11 23:43:53,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:53,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:43:53,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:53,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:43:53,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:43:53,008 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:43:53,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 437 transitions, 5107 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:53,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:53,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:43:53,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:53,743 INFO L130 PetriNetUnfolder]: 1467/3373 cut-off events. [2022-12-11 23:43:53,743 INFO L131 PetriNetUnfolder]: For 14675/16048 co-relation queries the response was YES. [2022-12-11 23:43:53,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17455 conditions, 3373 events. 1467/3373 cut-off events. For 14675/16048 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 24733 event pairs, 161 based on Foata normal form. 34/3348 useless extension candidates. Maximal degree in co-relation 14457. Up to 1427 conditions per place. [2022-12-11 23:43:53,772 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 306 selfloop transitions, 68 changer transitions 0/555 dead transitions. [2022-12-11 23:43:53,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 555 transitions, 7489 flow [2022-12-11 23:43:53,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:43:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:43:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1030 transitions. [2022-12-11 23:43:53,776 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8505367464905037 [2022-12-11 23:43:53,777 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 46 predicate places. [2022-12-11 23:43:53,777 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 555 transitions, 7489 flow [2022-12-11 23:43:53,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 555 transitions, 7489 flow [2022-12-11 23:43:53,800 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 555 transitions, 7489 flow [2022-12-11 23:43:53,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:53,801 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:53,801 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:53,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 23:43:53,802 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:53,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:53,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1057164682, now seen corresponding path program 5 times [2022-12-11 23:43:53,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:53,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722231670] [2022-12-11 23:43:53,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:53,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:55,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:55,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722231670] [2022-12-11 23:43:55,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722231670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:55,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:55,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 23:43:55,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693539413] [2022-12-11 23:43:55,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:55,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 23:43:55,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:55,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 23:43:55,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-11 23:43:55,047 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 173 [2022-12-11 23:43:55,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 555 transitions, 7489 flow. Second operand has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:55,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:55,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 173 [2022-12-11 23:43:55,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:56,391 INFO L130 PetriNetUnfolder]: 1692/3982 cut-off events. [2022-12-11 23:43:56,391 INFO L131 PetriNetUnfolder]: For 18870/21349 co-relation queries the response was YES. [2022-12-11 23:43:56,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23700 conditions, 3982 events. 1692/3982 cut-off events. For 18870/21349 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 30582 event pairs, 70 based on Foata normal form. 28/3977 useless extension candidates. Maximal degree in co-relation 19006. Up to 1759 conditions per place. [2022-12-11 23:43:56,427 INFO L137 encePairwiseOnDemand]: 148/173 looper letters, 546 selfloop transitions, 126 changer transitions 0/756 dead transitions. [2022-12-11 23:43:56,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 756 transitions, 11692 flow [2022-12-11 23:43:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 23:43:56,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 23:43:56,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1391 transitions. [2022-12-11 23:43:56,430 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47296837810268616 [2022-12-11 23:43:56,430 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 62 predicate places. [2022-12-11 23:43:56,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 756 transitions, 11692 flow [2022-12-11 23:43:56,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 756 transitions, 11692 flow [2022-12-11 23:43:56,462 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 756 transitions, 11692 flow [2022-12-11 23:43:56,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:56,462 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:56,462 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:56,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 23:43:56,463 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:56,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:56,463 INFO L85 PathProgramCache]: Analyzing trace with hash 640949268, now seen corresponding path program 6 times [2022-12-11 23:43:56,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:56,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982609899] [2022-12-11 23:43:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:56,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:57,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:57,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982609899] [2022-12-11 23:43:57,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982609899] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:57,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:57,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 23:43:57,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334294183] [2022-12-11 23:43:57,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:57,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 23:43:57,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:57,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 23:43:57,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-12-11 23:43:57,491 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 173 [2022-12-11 23:43:57,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 756 transitions, 11692 flow. Second operand has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:57,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:57,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 173 [2022-12-11 23:43:57,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:59,165 INFO L130 PetriNetUnfolder]: 2021/4919 cut-off events. [2022-12-11 23:43:59,165 INFO L131 PetriNetUnfolder]: For 30078/35531 co-relation queries the response was YES. [2022-12-11 23:43:59,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32965 conditions, 4919 events. 2021/4919 cut-off events. For 30078/35531 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 40746 event pairs, 55 based on Foata normal form. 157/5043 useless extension candidates. Maximal degree in co-relation 27152. Up to 2261 conditions per place. [2022-12-11 23:43:59,213 INFO L137 encePairwiseOnDemand]: 148/173 looper letters, 686 selfloop transitions, 161 changer transitions 0/931 dead transitions. [2022-12-11 23:43:59,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 931 transitions, 16523 flow [2022-12-11 23:43:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 23:43:59,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 23:43:59,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1568 transitions. [2022-12-11 23:43:59,217 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4770307271067843 [2022-12-11 23:43:59,217 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 80 predicate places. [2022-12-11 23:43:59,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 931 transitions, 16523 flow [2022-12-11 23:43:59,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 931 transitions, 16523 flow [2022-12-11 23:43:59,252 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 931 transitions, 16523 flow [2022-12-11 23:43:59,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:43:59,253 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:59,253 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:59,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 23:43:59,254 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:43:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1203466972, now seen corresponding path program 7 times [2022-12-11 23:43:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:59,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925749555] [2022-12-11 23:43:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:00,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:00,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925749555] [2022-12-11 23:44:00,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925749555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:00,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:00,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 23:44:00,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150479206] [2022-12-11 23:44:00,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:00,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 23:44:00,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:00,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 23:44:00,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-12-11 23:44:00,264 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 173 [2022-12-11 23:44:00,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 931 transitions, 16523 flow. Second operand has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:00,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:00,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 173 [2022-12-11 23:44:00,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:01,923 INFO L130 PetriNetUnfolder]: 2024/4982 cut-off events. [2022-12-11 23:44:01,923 INFO L131 PetriNetUnfolder]: For 35666/41997 co-relation queries the response was YES. [2022-12-11 23:44:01,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36804 conditions, 4982 events. 2024/4982 cut-off events. For 35666/41997 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 41340 event pairs, 48 based on Foata normal form. 87/5035 useless extension candidates. Maximal degree in co-relation 30124. Up to 2287 conditions per place. [2022-12-11 23:44:01,966 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 788 selfloop transitions, 93 changer transitions 0/965 dead transitions. [2022-12-11 23:44:01,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 965 transitions, 18884 flow [2022-12-11 23:44:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 23:44:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 23:44:01,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1559 transitions. [2022-12-11 23:44:01,970 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47429266808640097 [2022-12-11 23:44:01,970 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 98 predicate places. [2022-12-11 23:44:01,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 259 places, 965 transitions, 18884 flow [2022-12-11 23:44:02,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 965 transitions, 18884 flow [2022-12-11 23:44:02,009 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 965 transitions, 18884 flow [2022-12-11 23:44:02,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:02,009 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:02,010 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:02,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-11 23:44:02,010 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:02,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:02,010 INFO L85 PathProgramCache]: Analyzing trace with hash 794919426, now seen corresponding path program 8 times [2022-12-11 23:44:02,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:02,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700222988] [2022-12-11 23:44:02,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:02,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:02,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:02,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700222988] [2022-12-11 23:44:02,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700222988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:02,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:02,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:44:02,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570614947] [2022-12-11 23:44:02,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:02,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:44:02,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:02,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:44:02,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:44:02,718 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 173 [2022-12-11 23:44:02,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 965 transitions, 18884 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:02,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:02,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 173 [2022-12-11 23:44:02,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:04,763 INFO L130 PetriNetUnfolder]: 3099/7976 cut-off events. [2022-12-11 23:44:04,763 INFO L131 PetriNetUnfolder]: For 66917/74613 co-relation queries the response was YES. [2022-12-11 23:44:04,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63206 conditions, 7976 events. 3099/7976 cut-off events. For 66917/74613 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 75136 event pairs, 104 based on Foata normal form. 114/8036 useless extension candidates. Maximal degree in co-relation 51189. Up to 3766 conditions per place. [2022-12-11 23:44:04,844 INFO L137 encePairwiseOnDemand]: 163/173 looper letters, 953 selfloop transitions, 79 changer transitions 0/1356 dead transitions. [2022-12-11 23:44:04,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 1356 transitions, 29628 flow [2022-12-11 23:44:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:44:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:44:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1373 transitions. [2022-12-11 23:44:04,846 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7936416184971098 [2022-12-11 23:44:04,847 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 107 predicate places. [2022-12-11 23:44:04,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 1356 transitions, 29628 flow [2022-12-11 23:44:04,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 268 places, 1356 transitions, 29628 flow [2022-12-11 23:44:04,918 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 1356 transitions, 29628 flow [2022-12-11 23:44:04,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:04,919 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:04,919 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-11 23:44:04,920 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:04,920 INFO L85 PathProgramCache]: Analyzing trace with hash -827700038, now seen corresponding path program 9 times [2022-12-11 23:44:04,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:04,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231669201] [2022-12-11 23:44:04,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:04,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:06,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:06,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231669201] [2022-12-11 23:44:06,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231669201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:06,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:06,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 23:44:06,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557266490] [2022-12-11 23:44:06,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:06,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 23:44:06,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:06,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 23:44:06,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-12-11 23:44:06,062 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 173 [2022-12-11 23:44:06,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 1356 transitions, 29628 flow. Second operand has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:06,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:06,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 173 [2022-12-11 23:44:06,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:09,298 INFO L130 PetriNetUnfolder]: 3758/10184 cut-off events. [2022-12-11 23:44:09,298 INFO L131 PetriNetUnfolder]: For 102002/118500 co-relation queries the response was YES. [2022-12-11 23:44:09,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86693 conditions, 10184 events. 3758/10184 cut-off events. For 102002/118500 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 102774 event pairs, 98 based on Foata normal form. 114/10235 useless extension candidates. Maximal degree in co-relation 70607. Up to 4830 conditions per place. [2022-12-11 23:44:09,400 INFO L137 encePairwiseOnDemand]: 148/173 looper letters, 1283 selfloop transitions, 356 changer transitions 0/1822 dead transitions. [2022-12-11 23:44:09,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 1822 transitions, 43388 flow [2022-12-11 23:44:09,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 23:44:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 23:44:09,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1565 transitions. [2022-12-11 23:44:09,403 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47611804076665654 [2022-12-11 23:44:09,404 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 125 predicate places. [2022-12-11 23:44:09,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 1822 transitions, 43388 flow [2022-12-11 23:44:09,503 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 1822 transitions, 43388 flow [2022-12-11 23:44:09,504 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 1822 transitions, 43388 flow [2022-12-11 23:44:09,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:09,505 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:09,505 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-11 23:44:09,505 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:09,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:09,506 INFO L85 PathProgramCache]: Analyzing trace with hash 255008990, now seen corresponding path program 10 times [2022-12-11 23:44:09,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:09,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839963472] [2022-12-11 23:44:09,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:09,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:10,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:10,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839963472] [2022-12-11 23:44:10,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839963472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:10,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:10,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:44:10,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433310056] [2022-12-11 23:44:10,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:10,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:44:10,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:10,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:44:10,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:44:10,101 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:44:10,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 1822 transitions, 43388 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:10,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:10,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:44:10,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:12,621 INFO L130 PetriNetUnfolder]: 2903/8031 cut-off events. [2022-12-11 23:44:12,621 INFO L131 PetriNetUnfolder]: For 93275/101018 co-relation queries the response was YES. [2022-12-11 23:44:12,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72567 conditions, 8031 events. 2903/8031 cut-off events. For 93275/101018 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 77015 event pairs, 101 based on Foata normal form. 153/8127 useless extension candidates. Maximal degree in co-relation 56230. Up to 3778 conditions per place. [2022-12-11 23:44:12,677 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 941 selfloop transitions, 69 changer transitions 0/1562 dead transitions. [2022-12-11 23:44:12,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 1562 transitions, 38706 flow [2022-12-11 23:44:12,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:44:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:44:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1033 transitions. [2022-12-11 23:44:12,679 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8530140379851362 [2022-12-11 23:44:12,679 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 131 predicate places. [2022-12-11 23:44:12,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 1562 transitions, 38706 flow [2022-12-11 23:44:12,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 1562 transitions, 38706 flow [2022-12-11 23:44:12,734 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 1562 transitions, 38706 flow [2022-12-11 23:44:12,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:12,735 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:12,735 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:12,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-11 23:44:12,735 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:12,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:12,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1428559904, now seen corresponding path program 11 times [2022-12-11 23:44:12,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:12,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477409568] [2022-12-11 23:44:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:12,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:13,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:13,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477409568] [2022-12-11 23:44:13,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477409568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:13,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:13,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 23:44:13,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538395210] [2022-12-11 23:44:13,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:13,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 23:44:13,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:13,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 23:44:13,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-12-11 23:44:13,777 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 173 [2022-12-11 23:44:13,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 1562 transitions, 38706 flow. Second operand has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:13,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:13,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 173 [2022-12-11 23:44:13,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:17,328 INFO L130 PetriNetUnfolder]: 3631/10352 cut-off events. [2022-12-11 23:44:17,328 INFO L131 PetriNetUnfolder]: For 140982/153447 co-relation queries the response was YES. [2022-12-11 23:44:17,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99537 conditions, 10352 events. 3631/10352 cut-off events. For 140982/153447 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 105624 event pairs, 113 based on Foata normal form. 68/10358 useless extension candidates. Maximal degree in co-relation 69873. Up to 4877 conditions per place. [2022-12-11 23:44:17,437 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 1652 selfloop transitions, 236 changer transitions 0/2046 dead transitions. [2022-12-11 23:44:17,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 2046 transitions, 55001 flow [2022-12-11 23:44:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 23:44:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 23:44:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1558 transitions. [2022-12-11 23:44:17,442 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47398843930635837 [2022-12-11 23:44:17,444 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 149 predicate places. [2022-12-11 23:44:17,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 310 places, 2046 transitions, 55001 flow [2022-12-11 23:44:17,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 310 places, 2046 transitions, 55001 flow [2022-12-11 23:44:17,539 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 2046 transitions, 55001 flow [2022-12-11 23:44:17,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.06666666666666) internal successors, (1171), 15 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:17,540 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:17,540 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:17,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-11 23:44:17,540 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:17,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:17,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1015864956, now seen corresponding path program 12 times [2022-12-11 23:44:17,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:17,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269368515] [2022-12-11 23:44:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:17,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:18,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:18,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269368515] [2022-12-11 23:44:18,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269368515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:18,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:18,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:44:18,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222866577] [2022-12-11 23:44:18,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:18,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:44:18,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:18,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:44:18,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:44:18,155 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:44:18,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 2046 transitions, 55001 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:18,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:18,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:44:18,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:23,615 INFO L130 PetriNetUnfolder]: 5226/14935 cut-off events. [2022-12-11 23:44:23,615 INFO L131 PetriNetUnfolder]: For 223181/238436 co-relation queries the response was YES. [2022-12-11 23:44:23,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150895 conditions, 14935 events. 5226/14935 cut-off events. For 223181/238436 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 164220 event pairs, 101 based on Foata normal form. 153/15015 useless extension candidates. Maximal degree in co-relation 132314. Up to 7124 conditions per place. [2022-12-11 23:44:23,724 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 1754 selfloop transitions, 124 changer transitions 0/2630 dead transitions. [2022-12-11 23:44:23,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 2630 transitions, 76373 flow [2022-12-11 23:44:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:44:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:44:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1035 transitions. [2022-12-11 23:44:23,726 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8546655656482246 [2022-12-11 23:44:23,726 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 155 predicate places. [2022-12-11 23:44:23,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 316 places, 2630 transitions, 76373 flow [2022-12-11 23:44:23,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 316 places, 2630 transitions, 76373 flow [2022-12-11 23:44:23,828 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 2630 transitions, 76373 flow [2022-12-11 23:44:23,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:23,829 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:23,829 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:23,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-11 23:44:23,829 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:23,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:23,830 INFO L85 PathProgramCache]: Analyzing trace with hash -889156134, now seen corresponding path program 13 times [2022-12-11 23:44:23,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:23,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944152872] [2022-12-11 23:44:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:23,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:24,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:24,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:24,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944152872] [2022-12-11 23:44:24,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944152872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:24,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:24,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:44:24,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865551308] [2022-12-11 23:44:24,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:24,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:44:24,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:24,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:44:24,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:44:24,300 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:44:24,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 2630 transitions, 76373 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:24,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:24,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:44:24,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:31,118 INFO L130 PetriNetUnfolder]: 5351/15698 cut-off events. [2022-12-11 23:44:31,119 INFO L131 PetriNetUnfolder]: For 262027/278202 co-relation queries the response was YES. [2022-12-11 23:44:31,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166116 conditions, 15698 events. 5351/15698 cut-off events. For 262027/278202 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 175632 event pairs, 95 based on Foata normal form. 227/15851 useless extension candidates. Maximal degree in co-relation 145255. Up to 7518 conditions per place. [2022-12-11 23:44:31,246 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 1907 selfloop transitions, 87 changer transitions 0/2746 dead transitions. [2022-12-11 23:44:31,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 2746 transitions, 84210 flow [2022-12-11 23:44:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:44:31,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:44:31,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1038 transitions. [2022-12-11 23:44:31,248 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-12-11 23:44:31,248 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 161 predicate places. [2022-12-11 23:44:31,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 322 places, 2746 transitions, 84210 flow [2022-12-11 23:44:31,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 322 places, 2746 transitions, 84210 flow [2022-12-11 23:44:31,364 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 2746 transitions, 84210 flow [2022-12-11 23:44:31,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:31,364 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:31,364 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:31,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-11 23:44:31,365 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:31,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:31,365 INFO L85 PathProgramCache]: Analyzing trace with hash -258081942, now seen corresponding path program 14 times [2022-12-11 23:44:31,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:31,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528053170] [2022-12-11 23:44:31,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:31,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:31,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:31,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:31,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528053170] [2022-12-11 23:44:31,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528053170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:31,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:31,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:44:31,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623052375] [2022-12-11 23:44:31,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:31,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:44:31,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:31,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:44:31,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:44:31,831 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:44:31,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 2746 transitions, 84210 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:31,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:31,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:44:31,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:39,213 INFO L130 PetriNetUnfolder]: 5325/15652 cut-off events. [2022-12-11 23:44:39,213 INFO L131 PetriNetUnfolder]: For 293995/310926 co-relation queries the response was YES. [2022-12-11 23:44:39,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173243 conditions, 15652 events. 5325/15652 cut-off events. For 293995/310926 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 175395 event pairs, 83 based on Foata normal form. 152/15727 useless extension candidates. Maximal degree in co-relation 151846. Up to 7492 conditions per place. [2022-12-11 23:44:39,331 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 1902 selfloop transitions, 99 changer transitions 0/2753 dead transitions. [2022-12-11 23:44:39,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 2753 transitions, 88395 flow [2022-12-11 23:44:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:44:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:44:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1040 transitions. [2022-12-11 23:44:39,333 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8587943848059455 [2022-12-11 23:44:39,333 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 167 predicate places. [2022-12-11 23:44:39,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 2753 transitions, 88395 flow [2022-12-11 23:44:39,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 328 places, 2753 transitions, 88395 flow [2022-12-11 23:44:39,449 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 2753 transitions, 88395 flow [2022-12-11 23:44:39,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:39,449 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:39,449 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:39,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-11 23:44:39,449 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:39,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash 312839648, now seen corresponding path program 15 times [2022-12-11 23:44:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:39,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904203108] [2022-12-11 23:44:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:39,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:39,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904203108] [2022-12-11 23:44:39,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904203108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:39,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:39,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:44:39,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128916290] [2022-12-11 23:44:39,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:39,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:44:39,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:39,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:44:39,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:44:39,944 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:44:39,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 2753 transitions, 88395 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:39,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:39,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:44:39,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:46,169 INFO L130 PetriNetUnfolder]: 4346/13136 cut-off events. [2022-12-11 23:44:46,169 INFO L131 PetriNetUnfolder]: For 277583/293523 co-relation queries the response was YES. [2022-12-11 23:44:46,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151708 conditions, 13136 events. 4346/13136 cut-off events. For 277583/293523 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 143504 event pairs, 77 based on Foata normal form. 201/13267 useless extension candidates. Maximal degree in co-relation 130559. Up to 6269 conditions per place. [2022-12-11 23:44:46,268 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 1637 selfloop transitions, 77 changer transitions 0/2449 dead transitions. [2022-12-11 23:44:46,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 2449 transitions, 81073 flow [2022-12-11 23:44:46,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:44:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:44:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1044 transitions. [2022-12-11 23:44:46,269 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8620974401321222 [2022-12-11 23:44:46,270 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 173 predicate places. [2022-12-11 23:44:46,270 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 2449 transitions, 81073 flow [2022-12-11 23:44:46,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 334 places, 2449 transitions, 81073 flow [2022-12-11 23:44:46,363 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 2449 transitions, 81073 flow [2022-12-11 23:44:46,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:46,364 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:46,364 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:46,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-11 23:44:46,364 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:46,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1666606256, now seen corresponding path program 16 times [2022-12-11 23:44:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:46,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547905001] [2022-12-11 23:44:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:47,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:47,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:47,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547905001] [2022-12-11 23:44:47,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547905001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:47,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:47,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 23:44:47,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577815441] [2022-12-11 23:44:47,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:47,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 23:44:47,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:47,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 23:44:47,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-11 23:44:47,265 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 173 [2022-12-11 23:44:47,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 2449 transitions, 81073 flow. Second operand has 16 states, 16 states have (on average 77.8125) internal successors, (1245), 16 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:47,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:47,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 173 [2022-12-11 23:44:47,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:44:53,639 INFO L130 PetriNetUnfolder]: 4346/13208 cut-off events. [2022-12-11 23:44:53,640 INFO L131 PetriNetUnfolder]: For 307883/341228 co-relation queries the response was YES. [2022-12-11 23:44:53,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160940 conditions, 13208 events. 4346/13208 cut-off events. For 307883/341228 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 144326 event pairs, 79 based on Foata normal form. 54/13197 useless extension candidates. Maximal degree in co-relation 137771. Up to 6296 conditions per place. [2022-12-11 23:44:53,742 INFO L137 encePairwiseOnDemand]: 149/173 looper letters, 2064 selfloop transitions, 290 changer transitions 0/2559 dead transitions. [2022-12-11 23:44:53,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 2559 transitions, 88714 flow [2022-12-11 23:44:53,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-11 23:44:53,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-11 23:44:53,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1832 transitions. [2022-12-11 23:44:53,745 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.46041719024880623 [2022-12-11 23:44:53,745 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 195 predicate places. [2022-12-11 23:44:53,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 356 places, 2559 transitions, 88714 flow [2022-12-11 23:44:53,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 356 places, 2559 transitions, 88714 flow [2022-12-11 23:44:53,846 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 2559 transitions, 88714 flow [2022-12-11 23:44:53,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 77.8125) internal successors, (1245), 16 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:53,847 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:44:53,847 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:44:53,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-11 23:44:53,847 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:44:53,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:44:53,847 INFO L85 PathProgramCache]: Analyzing trace with hash -29951014, now seen corresponding path program 17 times [2022-12-11 23:44:53,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:44:53,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814675618] [2022-12-11 23:44:53,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:44:53,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:44:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:44:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:44:54,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:44:54,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814675618] [2022-12-11 23:44:54,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814675618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:44:54,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:44:54,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:44:54,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860024889] [2022-12-11 23:44:54,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:44:54,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:44:54,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:44:54,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:44:54,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:44:54,391 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 173 [2022-12-11 23:44:54,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 2559 transitions, 88714 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:44:54,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:44:54,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 173 [2022-12-11 23:44:54,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:45:02,149 INFO L130 PetriNetUnfolder]: 5583/16816 cut-off events. [2022-12-11 23:45:02,149 INFO L131 PetriNetUnfolder]: For 427663/467458 co-relation queries the response was YES. [2022-12-11 23:45:02,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213238 conditions, 16816 events. 5583/16816 cut-off events. For 427663/467458 co-relation queries the response was YES. Maximal size of possible extension queue 719. Compared 192320 event pairs, 90 based on Foata normal form. 182/16921 useless extension candidates. Maximal degree in co-relation 186436. Up to 8068 conditions per place. [2022-12-11 23:45:02,290 INFO L137 encePairwiseOnDemand]: 163/173 looper letters, 2170 selfloop transitions, 177 changer transitions 0/3060 dead transitions. [2022-12-11 23:45:02,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 3060 transitions, 112696 flow [2022-12-11 23:45:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:45:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:45:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1374 transitions. [2022-12-11 23:45:02,291 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7942196531791907 [2022-12-11 23:45:02,292 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 204 predicate places. [2022-12-11 23:45:02,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 365 places, 3060 transitions, 112696 flow [2022-12-11 23:45:02,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 365 places, 3060 transitions, 112696 flow [2022-12-11 23:45:02,425 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 3060 transitions, 112696 flow [2022-12-11 23:45:02,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:02,426 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:45:02,426 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:45:02,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-11 23:45:02,426 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:45:02,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:45:02,427 INFO L85 PathProgramCache]: Analyzing trace with hash 231280628, now seen corresponding path program 18 times [2022-12-11 23:45:02,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:45:02,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108259705] [2022-12-11 23:45:02,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:45:02,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:45:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:45:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:45:03,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:45:03,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108259705] [2022-12-11 23:45:03,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108259705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:45:03,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:45:03,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:45:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179664497] [2022-12-11 23:45:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:45:03,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:45:03,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:45:03,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:45:03,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:45:03,117 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 173 [2022-12-11 23:45:03,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 3060 transitions, 112696 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:03,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:45:03,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 173 [2022-12-11 23:45:03,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:45:10,651 INFO L130 PetriNetUnfolder]: 4604/14266 cut-off events. [2022-12-11 23:45:10,652 INFO L131 PetriNetUnfolder]: For 404721/441619 co-relation queries the response was YES. [2022-12-11 23:45:10,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188006 conditions, 14266 events. 4604/14266 cut-off events. For 404721/441619 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 159282 event pairs, 87 based on Foata normal form. 239/14432 useless extension candidates. Maximal degree in co-relation 161624. Up to 6836 conditions per place. [2022-12-11 23:45:10,768 INFO L137 encePairwiseOnDemand]: 163/173 looper letters, 1901 selfloop transitions, 151 changer transitions 0/2749 dead transitions. [2022-12-11 23:45:10,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 2749 transitions, 104131 flow [2022-12-11 23:45:10,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:45:10,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:45:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1370 transitions. [2022-12-11 23:45:10,769 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.791907514450867 [2022-12-11 23:45:10,769 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 213 predicate places. [2022-12-11 23:45:10,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 2749 transitions, 104131 flow [2022-12-11 23:45:10,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 2749 transitions, 104131 flow [2022-12-11 23:45:10,878 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 2749 transitions, 104131 flow [2022-12-11 23:45:10,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:10,879 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:45:10,879 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:45:10,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-11 23:45:10,879 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:45:10,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:45:10,880 INFO L85 PathProgramCache]: Analyzing trace with hash 265699976, now seen corresponding path program 19 times [2022-12-11 23:45:10,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:45:10,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489195704] [2022-12-11 23:45:10,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:45:10,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:45:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:45:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:45:11,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:45:11,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489195704] [2022-12-11 23:45:11,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489195704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:45:11,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:45:11,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:45:11,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009936376] [2022-12-11 23:45:11,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:45:11,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:45:11,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:45:11,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:45:11,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:45:11,294 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:45:11,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 2749 transitions, 104131 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:11,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:45:11,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:45:11,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:45:20,338 INFO L130 PetriNetUnfolder]: 5685/17639 cut-off events. [2022-12-11 23:45:20,338 INFO L131 PetriNetUnfolder]: For 545011/587774 co-relation queries the response was YES. [2022-12-11 23:45:20,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240116 conditions, 17639 events. 5685/17639 cut-off events. For 545011/587774 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 206539 event pairs, 102 based on Foata normal form. 200/17758 useless extension candidates. Maximal degree in co-relation 210132. Up to 8532 conditions per place. [2022-12-11 23:45:20,488 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 2274 selfloop transitions, 114 changer transitions 0/3184 dead transitions. [2022-12-11 23:45:20,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 3184 transitions, 128083 flow [2022-12-11 23:45:20,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:45:20,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:45:20,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1041 transitions. [2022-12-11 23:45:20,489 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8596201486374897 [2022-12-11 23:45:20,490 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 219 predicate places. [2022-12-11 23:45:20,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 380 places, 3184 transitions, 128083 flow [2022-12-11 23:45:20,630 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 380 places, 3184 transitions, 128083 flow [2022-12-11 23:45:20,630 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 3184 transitions, 128083 flow [2022-12-11 23:45:20,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:20,631 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:45:20,631 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:45:20,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-11 23:45:20,631 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:45:20,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:45:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash -793519834, now seen corresponding path program 20 times [2022-12-11 23:45:20,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:45:20,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016766248] [2022-12-11 23:45:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:45:20,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:45:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:45:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:45:21,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:45:21,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016766248] [2022-12-11 23:45:21,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016766248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:45:21,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:45:21,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:45:21,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583100038] [2022-12-11 23:45:21,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:45:21,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:45:21,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:45:21,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:45:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:45:21,074 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:45:21,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 3184 transitions, 128083 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:21,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:45:21,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:45:21,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:45:32,151 INFO L130 PetriNetUnfolder]: 5676/17655 cut-off events. [2022-12-11 23:45:32,151 INFO L131 PetriNetUnfolder]: For 600848/644360 co-relation queries the response was YES. [2022-12-11 23:45:32,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248559 conditions, 17655 events. 5676/17655 cut-off events. For 600848/644360 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 207239 event pairs, 103 based on Foata normal form. 159/17733 useless extension candidates. Maximal degree in co-relation 218009. Up to 8542 conditions per place. [2022-12-11 23:45:32,313 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 2258 selfloop transitions, 141 changer transitions 0/3195 dead transitions. [2022-12-11 23:45:32,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 3195 transitions, 133329 flow [2022-12-11 23:45:32,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:45:32,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:45:32,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1041 transitions. [2022-12-11 23:45:32,315 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8596201486374897 [2022-12-11 23:45:32,316 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 225 predicate places. [2022-12-11 23:45:32,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 386 places, 3195 transitions, 133329 flow [2022-12-11 23:45:32,468 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 386 places, 3195 transitions, 133329 flow [2022-12-11 23:45:32,468 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 3195 transitions, 133329 flow [2022-12-11 23:45:32,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:32,469 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:45:32,469 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:45:32,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-11 23:45:32,469 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:45:32,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:45:32,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1394249358, now seen corresponding path program 21 times [2022-12-11 23:45:32,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:45:32,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941034108] [2022-12-11 23:45:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:45:32,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:45:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:45:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:45:33,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:45:33,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941034108] [2022-12-11 23:45:33,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941034108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:45:33,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:45:33,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:45:33,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340548299] [2022-12-11 23:45:33,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:45:33,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:45:33,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:45:33,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:45:33,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:45:33,079 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 173 [2022-12-11 23:45:33,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 3195 transitions, 133329 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:33,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:45:33,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 173 [2022-12-11 23:45:33,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:45:42,367 INFO L130 PetriNetUnfolder]: 4694/14995 cut-off events. [2022-12-11 23:45:42,367 INFO L131 PetriNetUnfolder]: For 557459/600396 co-relation queries the response was YES. [2022-12-11 23:45:42,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218221 conditions, 14995 events. 4694/14995 cut-off events. For 557459/600396 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 171301 event pairs, 79 based on Foata normal form. 170/15093 useless extension candidates. Maximal degree in co-relation 188089. Up to 7214 conditions per place. [2022-12-11 23:45:42,505 INFO L137 encePairwiseOnDemand]: 163/173 looper letters, 2031 selfloop transitions, 189 changer transitions 0/2903 dead transitions. [2022-12-11 23:45:42,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 2903 transitions, 123391 flow [2022-12-11 23:45:42,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:45:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:45:42,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1371 transitions. [2022-12-11 23:45:42,507 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.792485549132948 [2022-12-11 23:45:42,507 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 234 predicate places. [2022-12-11 23:45:42,507 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 2903 transitions, 123391 flow [2022-12-11 23:45:42,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 395 places, 2903 transitions, 123391 flow [2022-12-11 23:45:42,641 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 2903 transitions, 123391 flow [2022-12-11 23:45:42,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:42,642 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:45:42,642 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:45:42,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-11 23:45:42,642 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:45:42,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:45:42,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2037778526, now seen corresponding path program 22 times [2022-12-11 23:45:42,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:45:42,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83782831] [2022-12-11 23:45:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:45:42,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:45:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:45:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:45:43,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:45:43,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83782831] [2022-12-11 23:45:43,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83782831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:45:43,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:45:43,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:45:43,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562459198] [2022-12-11 23:45:43,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:45:43,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:45:43,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:45:43,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:45:43,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:45:43,064 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2022-12-11 23:45:43,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 2903 transitions, 123391 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:43,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:45:43,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2022-12-11 23:45:43,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:45:50,516 INFO L130 PetriNetUnfolder]: 3715/12445 cut-off events. [2022-12-11 23:45:50,516 INFO L131 PetriNetUnfolder]: For 509453/551610 co-relation queries the response was YES. [2022-12-11 23:45:50,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186278 conditions, 12445 events. 3715/12445 cut-off events. For 509453/551610 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 139378 event pairs, 71 based on Foata normal form. 205/12583 useless extension candidates. Maximal degree in co-relation 156690. Up to 5982 conditions per place. [2022-12-11 23:45:50,635 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 1717 selfloop transitions, 83 changer transitions 0/2526 dead transitions. [2022-12-11 23:45:50,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 2526 transitions, 110342 flow [2022-12-11 23:45:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:45:50,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:45:50,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1044 transitions. [2022-12-11 23:45:50,637 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8620974401321222 [2022-12-11 23:45:50,637 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 238 predicate places. [2022-12-11 23:45:50,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 399 places, 2526 transitions, 110342 flow [2022-12-11 23:45:50,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 2526 transitions, 110342 flow [2022-12-11 23:45:50,750 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 2526 transitions, 110342 flow [2022-12-11 23:45:50,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:50,750 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:45:50,750 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:45:50,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-11 23:45:50,750 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:45:50,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:45:50,751 INFO L85 PathProgramCache]: Analyzing trace with hash 2120598641, now seen corresponding path program 1 times [2022-12-11 23:45:50,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:45:50,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029613802] [2022-12-11 23:45:50,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:45:50,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:45:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:45:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:45:53,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:45:53,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029613802] [2022-12-11 23:45:53,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029613802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:45:53,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:45:53,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:45:53,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998422806] [2022-12-11 23:45:53,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:45:53,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:45:53,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:45:53,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:45:53,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:45:53,611 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:45:53,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 2526 transitions, 110342 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:45:53,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:45:53,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:45:53,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:46:04,989 INFO L130 PetriNetUnfolder]: 4781/14643 cut-off events. [2022-12-11 23:46:04,990 INFO L131 PetriNetUnfolder]: For 653164/757801 co-relation queries the response was YES. [2022-12-11 23:46:05,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222628 conditions, 14643 events. 4781/14643 cut-off events. For 653164/757801 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 162485 event pairs, 229 based on Foata normal form. 234/14803 useless extension candidates. Maximal degree in co-relation 185826. Up to 6885 conditions per place. [2022-12-11 23:46:05,149 INFO L137 encePairwiseOnDemand]: 138/173 looper letters, 2577 selfloop transitions, 792 changer transitions 33/3469 dead transitions. [2022-12-11 23:46:05,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 3469 transitions, 151423 flow [2022-12-11 23:46:05,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-11 23:46:05,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-11 23:46:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2547 transitions. [2022-12-11 23:46:05,151 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42064409578860446 [2022-12-11 23:46:05,152 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 272 predicate places. [2022-12-11 23:46:05,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 433 places, 3469 transitions, 151423 flow [2022-12-11 23:46:05,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 425 places, 3436 transitions, 150343 flow [2022-12-11 23:46:05,290 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 3436 transitions, 150343 flow [2022-12-11 23:46:05,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:05,291 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:46:05,291 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:46:05,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-11 23:46:05,291 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:46:05,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:46:05,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1427597637, now seen corresponding path program 2 times [2022-12-11 23:46:05,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:46:05,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974173987] [2022-12-11 23:46:05,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:46:05,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:46:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:46:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:46:08,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:46:08,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974173987] [2022-12-11 23:46:08,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974173987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:46:08,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:46:08,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:46:08,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062980284] [2022-12-11 23:46:08,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:46:08,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:46:08,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:46:08,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:46:08,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:46:08,474 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:46:08,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 3436 transitions, 150343 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:08,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:46:08,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:46:08,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:46:22,902 INFO L130 PetriNetUnfolder]: 4799/14798 cut-off events. [2022-12-11 23:46:22,902 INFO L131 PetriNetUnfolder]: For 694452/747171 co-relation queries the response was YES. [2022-12-11 23:46:22,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236425 conditions, 14798 events. 4799/14798 cut-off events. For 694452/747171 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 164635 event pairs, 228 based on Foata normal form. 518/15242 useless extension candidates. Maximal degree in co-relation 157415. Up to 6959 conditions per place. [2022-12-11 23:46:23,046 INFO L137 encePairwiseOnDemand]: 139/173 looper letters, 2570 selfloop transitions, 740 changer transitions 158/3535 dead transitions. [2022-12-11 23:46:23,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 3535 transitions, 160824 flow [2022-12-11 23:46:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-11 23:46:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-11 23:46:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2470 transitions. [2022-12-11 23:46:23,049 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4199251955117307 [2022-12-11 23:46:23,049 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 297 predicate places. [2022-12-11 23:46:23,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 3535 transitions, 160824 flow [2022-12-11 23:46:23,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 448 places, 3377 transitions, 154533 flow [2022-12-11 23:46:23,190 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 3377 transitions, 154533 flow [2022-12-11 23:46:23,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:23,191 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:46:23,191 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:46:23,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-11 23:46:23,191 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:46:23,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:46:23,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1510350045, now seen corresponding path program 3 times [2022-12-11 23:46:23,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:46:23,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487173243] [2022-12-11 23:46:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:46:23,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:46:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:46:25,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:46:25,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:46:25,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487173243] [2022-12-11 23:46:25,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487173243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:46:25,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:46:25,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-11 23:46:25,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924542197] [2022-12-11 23:46:25,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:46:25,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-11 23:46:25,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:46:25,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-11 23:46:25,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-12-11 23:46:25,560 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:46:25,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 3377 transitions, 154533 flow. Second operand has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:25,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:46:25,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:46:25,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:46:39,854 INFO L130 PetriNetUnfolder]: 4724/14566 cut-off events. [2022-12-11 23:46:39,854 INFO L131 PetriNetUnfolder]: For 708144/761946 co-relation queries the response was YES. [2022-12-11 23:46:39,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244549 conditions, 14566 events. 4724/14566 cut-off events. For 708144/761946 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 161717 event pairs, 230 based on Foata normal form. 469/14962 useless extension candidates. Maximal degree in co-relation 164066. Up to 6827 conditions per place. [2022-12-11 23:46:39,998 INFO L137 encePairwiseOnDemand]: 138/173 looper letters, 2527 selfloop transitions, 722 changer transitions 116/3432 dead transitions. [2022-12-11 23:46:39,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 3432 transitions, 163227 flow [2022-12-11 23:46:39,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-11 23:46:39,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-11 23:46:40,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2533 transitions. [2022-12-11 23:46:40,000 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41833195706028076 [2022-12-11 23:46:40,001 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 321 predicate places. [2022-12-11 23:46:40,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 482 places, 3432 transitions, 163227 flow [2022-12-11 23:46:40,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 470 places, 3316 transitions, 158443 flow [2022-12-11 23:46:40,293 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 3316 transitions, 158443 flow [2022-12-11 23:46:40,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:40,294 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:46:40,294 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:46:40,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-11 23:46:40,294 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:46:40,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:46:40,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1243927643, now seen corresponding path program 4 times [2022-12-11 23:46:40,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:46:40,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222350958] [2022-12-11 23:46:40,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:46:40,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:46:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:46:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:46:42,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:46:42,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222350958] [2022-12-11 23:46:42,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222350958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:46:42,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:46:42,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-12-11 23:46:42,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054115164] [2022-12-11 23:46:42,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:46:42,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-11 23:46:42,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:46:42,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-11 23:46:42,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2022-12-11 23:46:42,386 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 173 [2022-12-11 23:46:42,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 3316 transitions, 158443 flow. Second operand has 35 states, 35 states have (on average 67.14285714285714) internal successors, (2350), 35 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:42,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:46:42,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 173 [2022-12-11 23:46:42,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:46:57,955 INFO L130 PetriNetUnfolder]: 5034/15471 cut-off events. [2022-12-11 23:46:57,955 INFO L131 PetriNetUnfolder]: For 798411/861727 co-relation queries the response was YES. [2022-12-11 23:46:58,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272989 conditions, 15471 events. 5034/15471 cut-off events. For 798411/861727 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 173773 event pairs, 222 based on Foata normal form. 483/15884 useless extension candidates. Maximal degree in co-relation 178952. Up to 7316 conditions per place. [2022-12-11 23:46:58,112 INFO L137 encePairwiseOnDemand]: 133/173 looper letters, 2683 selfloop transitions, 780 changer transitions 140/3669 dead transitions. [2022-12-11 23:46:58,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 3669 transitions, 182608 flow [2022-12-11 23:46:58,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-11 23:46:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-12-11 23:46:58,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 2822 transitions. [2022-12-11 23:46:58,114 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4078034682080925 [2022-12-11 23:46:58,115 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 348 predicate places. [2022-12-11 23:46:58,115 INFO L82 GeneralOperation]: Start removeDead. Operand has 509 places, 3669 transitions, 182608 flow [2022-12-11 23:46:58,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 496 places, 3529 transitions, 176478 flow [2022-12-11 23:46:58,277 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 3529 transitions, 176478 flow [2022-12-11 23:46:58,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 67.14285714285714) internal successors, (2350), 35 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:46:58,277 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:46:58,278 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:46:58,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-11 23:46:58,278 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:46:58,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:46:58,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2057772197, now seen corresponding path program 5 times [2022-12-11 23:46:58,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:46:58,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477187919] [2022-12-11 23:46:58,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:46:58,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:46:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:47:00,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:47:00,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:47:00,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477187919] [2022-12-11 23:47:00,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477187919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:47:00,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:47:00,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:47:00,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655670200] [2022-12-11 23:47:00,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:47:00,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:47:00,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:47:00,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:47:00,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:47:00,689 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:47:00,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 3529 transitions, 176478 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:47:00,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:47:00,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:47:00,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:47:16,272 INFO L130 PetriNetUnfolder]: 4908/15172 cut-off events. [2022-12-11 23:47:16,273 INFO L131 PetriNetUnfolder]: For 827831/896033 co-relation queries the response was YES. [2022-12-11 23:47:16,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279509 conditions, 15172 events. 4908/15172 cut-off events. For 827831/896033 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 170066 event pairs, 237 based on Foata normal form. 579/15682 useless extension candidates. Maximal degree in co-relation 184558. Up to 7175 conditions per place. [2022-12-11 23:47:16,430 INFO L137 encePairwiseOnDemand]: 138/173 looper letters, 2617 selfloop transitions, 753 changer transitions 109/3546 dead transitions. [2022-12-11 23:47:16,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 3546 transitions, 184003 flow [2022-12-11 23:47:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-11 23:47:16,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-11 23:47:16,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2608 transitions. [2022-12-11 23:47:16,433 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4187540141297367 [2022-12-11 23:47:16,433 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 370 predicate places. [2022-12-11 23:47:16,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 531 places, 3546 transitions, 184003 flow [2022-12-11 23:47:16,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 520 places, 3437 transitions, 179318 flow [2022-12-11 23:47:16,599 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 3437 transitions, 179318 flow [2022-12-11 23:47:16,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:47:16,600 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:47:16,600 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:47:16,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-11 23:47:16,600 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:47:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:47:16,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1452603107, now seen corresponding path program 6 times [2022-12-11 23:47:16,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:47:16,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094260903] [2022-12-11 23:47:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:47:16,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:47:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:47:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:47:18,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:47:18,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094260903] [2022-12-11 23:47:18,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094260903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:47:18,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:47:18,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-11 23:47:18,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291480976] [2022-12-11 23:47:18,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:47:18,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-11 23:47:18,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:47:18,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-11 23:47:18,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-12-11 23:47:18,753 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:47:18,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 3437 transitions, 179318 flow. Second operand has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:47:18,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:47:18,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:47:18,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:47:35,214 INFO L130 PetriNetUnfolder]: 5421/16493 cut-off events. [2022-12-11 23:47:35,214 INFO L131 PetriNetUnfolder]: For 940592/1016488 co-relation queries the response was YES. [2022-12-11 23:47:35,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319057 conditions, 16493 events. 5421/16493 cut-off events. For 940592/1016488 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 187130 event pairs, 220 based on Foata normal form. 329/16759 useless extension candidates. Maximal degree in co-relation 262850. Up to 8708 conditions per place. [2022-12-11 23:47:35,463 INFO L137 encePairwiseOnDemand]: 137/173 looper letters, 3221 selfloop transitions, 759 changer transitions 33/4080 dead transitions. [2022-12-11 23:47:35,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 4080 transitions, 218052 flow [2022-12-11 23:47:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-11 23:47:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-11 23:47:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 2674 transitions. [2022-12-11 23:47:35,468 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41774722699578193 [2022-12-11 23:47:35,469 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 395 predicate places. [2022-12-11 23:47:35,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 556 places, 4080 transitions, 218052 flow [2022-12-11 23:47:35,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 548 places, 4047 transitions, 216642 flow [2022-12-11 23:47:35,684 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 4047 transitions, 216642 flow [2022-12-11 23:47:35,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:47:35,684 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:47:35,684 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:47:35,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-11 23:47:35,684 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:47:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:47:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash 863604021, now seen corresponding path program 7 times [2022-12-11 23:47:35,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:47:35,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803348501] [2022-12-11 23:47:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:47:35,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:47:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:47:37,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:47:37,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:47:37,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803348501] [2022-12-11 23:47:37,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803348501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:47:37,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:47:37,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-11 23:47:37,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019653752] [2022-12-11 23:47:37,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:47:37,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-11 23:47:37,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:47:37,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-11 23:47:37,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2022-12-11 23:47:37,807 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:47:37,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 4047 transitions, 216642 flow. Second operand has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:47:37,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:47:37,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:47:37,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:47:57,581 INFO L130 PetriNetUnfolder]: 5439/16639 cut-off events. [2022-12-11 23:47:57,581 INFO L131 PetriNetUnfolder]: For 1010052/1079864 co-relation queries the response was YES. [2022-12-11 23:47:57,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334735 conditions, 16639 events. 5439/16639 cut-off events. For 1010052/1079864 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 189690 event pairs, 244 based on Foata normal form. 528/17106 useless extension candidates. Maximal degree in co-relation 216669. Up to 8878 conditions per place. [2022-12-11 23:47:57,754 INFO L137 encePairwiseOnDemand]: 138/173 looper letters, 3216 selfloop transitions, 703 changer transitions 158/4144 dead transitions. [2022-12-11 23:47:57,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 4144 transitions, 229255 flow [2022-12-11 23:47:57,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-11 23:47:57,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-11 23:47:57,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2597 transitions. [2022-12-11 23:47:57,756 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4169877970456005 [2022-12-11 23:47:57,757 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 422 predicate places. [2022-12-11 23:47:57,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 583 places, 4144 transitions, 229255 flow [2022-12-11 23:47:57,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 573 places, 3986 transitions, 221384 flow [2022-12-11 23:47:57,942 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 3986 transitions, 221384 flow [2022-12-11 23:47:57,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:47:57,943 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:47:57,943 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:47:57,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-11 23:47:57,943 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:47:57,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:47:57,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1088920043, now seen corresponding path program 8 times [2022-12-11 23:47:57,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:47:57,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841363661] [2022-12-11 23:47:57,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:47:57,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:47:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:47:59,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:47:59,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:47:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841363661] [2022-12-11 23:47:59,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841363661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:47:59,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:47:59,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-11 23:47:59,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574681755] [2022-12-11 23:47:59,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:47:59,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-11 23:47:59,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:47:59,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-11 23:47:59,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-12-11 23:48:00,000 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:48:00,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 3986 transitions, 221384 flow. Second operand has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:48:00,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:48:00,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:48:00,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:48:19,923 INFO L130 PetriNetUnfolder]: 5427/16625 cut-off events. [2022-12-11 23:48:19,924 INFO L131 PetriNetUnfolder]: For 1045091/1132546 co-relation queries the response was YES. [2022-12-11 23:48:19,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347287 conditions, 16625 events. 5427/16625 cut-off events. For 1045091/1132546 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 189706 event pairs, 220 based on Foata normal form. 399/16951 useless extension candidates. Maximal degree in co-relation 286790. Up to 9252 conditions per place. [2022-12-11 23:48:20,129 INFO L137 encePairwiseOnDemand]: 137/173 looper letters, 3359 selfloop transitions, 709 changer transitions 33/4168 dead transitions. [2022-12-11 23:48:20,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 4168 transitions, 238515 flow [2022-12-11 23:48:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-11 23:48:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-11 23:48:20,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 2668 transitions. [2022-12-11 23:48:20,132 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41680987345727233 [2022-12-11 23:48:20,133 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 448 predicate places. [2022-12-11 23:48:20,133 INFO L82 GeneralOperation]: Start removeDead. Operand has 609 places, 4168 transitions, 238515 flow [2022-12-11 23:48:20,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 601 places, 4135 transitions, 236973 flow [2022-12-11 23:48:20,345 INFO L495 AbstractCegarLoop]: Abstraction has has 601 places, 4135 transitions, 236973 flow [2022-12-11 23:48:20,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:48:20,345 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:48:20,345 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:48:20,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-11 23:48:20,346 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:48:20,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:48:20,346 INFO L85 PathProgramCache]: Analyzing trace with hash -204237179, now seen corresponding path program 9 times [2022-12-11 23:48:20,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:48:20,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385196762] [2022-12-11 23:48:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:48:20,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:48:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:48:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:48:22,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:48:22,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385196762] [2022-12-11 23:48:22,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385196762] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:48:22,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:48:22,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:48:22,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608697085] [2022-12-11 23:48:22,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:48:22,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:48:22,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:48:22,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:48:22,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:48:22,363 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:48:22,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 4135 transitions, 236973 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:48:22,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:48:22,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:48:22,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:48:44,875 INFO L130 PetriNetUnfolder]: 5454/16788 cut-off events. [2022-12-11 23:48:44,875 INFO L131 PetriNetUnfolder]: For 1103779/1198559 co-relation queries the response was YES. [2022-12-11 23:48:44,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363805 conditions, 16788 events. 5454/16788 cut-off events. For 1103779/1198559 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 192246 event pairs, 214 based on Foata normal form. 425/17145 useless extension candidates. Maximal degree in co-relation 299502. Up to 9449 conditions per place. [2022-12-11 23:48:45,067 INFO L137 encePairwiseOnDemand]: 139/173 looper letters, 3367 selfloop transitions, 651 changer transitions 158/4243 dead transitions. [2022-12-11 23:48:45,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 4243 transitions, 250790 flow [2022-12-11 23:48:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-11 23:48:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-11 23:48:45,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2525 transitions. [2022-12-11 23:48:45,070 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41701073492981006 [2022-12-11 23:48:45,071 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 474 predicate places. [2022-12-11 23:48:45,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 635 places, 4243 transitions, 250790 flow [2022-12-11 23:48:45,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 625 places, 4085 transitions, 242287 flow [2022-12-11 23:48:45,364 INFO L495 AbstractCegarLoop]: Abstraction has has 625 places, 4085 transitions, 242287 flow [2022-12-11 23:48:45,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:48:45,364 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:48:45,364 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:48:45,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-11 23:48:45,365 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:48:45,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:48:45,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1163764147, now seen corresponding path program 10 times [2022-12-11 23:48:45,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:48:45,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236876014] [2022-12-11 23:48:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:48:45,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:48:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:48:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:48:47,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:48:47,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236876014] [2022-12-11 23:48:47,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236876014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:48:47,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:48:47,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:48:47,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12885858] [2022-12-11 23:48:47,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:48:47,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:48:47,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:48:47,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:48:47,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:48:47,841 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:48:47,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 625 places, 4085 transitions, 242287 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:48:47,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:48:47,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:48:47,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:49:09,312 INFO L130 PetriNetUnfolder]: 5388/16618 cut-off events. [2022-12-11 23:49:09,312 INFO L131 PetriNetUnfolder]: For 1155041/1254982 co-relation queries the response was YES. [2022-12-11 23:49:09,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372854 conditions, 16618 events. 5388/16618 cut-off events. For 1155041/1254982 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 190423 event pairs, 210 based on Foata normal form. 375/16927 useless extension candidates. Maximal degree in co-relation 308180. Up to 9536 conditions per place. [2022-12-11 23:49:09,490 INFO L137 encePairwiseOnDemand]: 139/173 looper letters, 3282 selfloop transitions, 682 changer transitions 116/4147 dead transitions. [2022-12-11 23:49:09,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 4147 transitions, 253645 flow [2022-12-11 23:49:09,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-11 23:49:09,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-11 23:49:09,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2524 transitions. [2022-12-11 23:49:09,492 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41684558216350126 [2022-12-11 23:49:09,492 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 498 predicate places. [2022-12-11 23:49:09,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 659 places, 4147 transitions, 253645 flow [2022-12-11 23:49:09,681 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 647 places, 4031 transitions, 247237 flow [2022-12-11 23:49:09,682 INFO L495 AbstractCegarLoop]: Abstraction has has 647 places, 4031 transitions, 247237 flow [2022-12-11 23:49:09,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:49:09,682 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:49:09,682 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:49:09,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-11 23:49:09,682 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:49:09,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:49:09,683 INFO L85 PathProgramCache]: Analyzing trace with hash -592491809, now seen corresponding path program 11 times [2022-12-11 23:49:09,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:49:09,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713192371] [2022-12-11 23:49:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:49:09,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:49:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:49:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:49:11,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:49:11,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713192371] [2022-12-11 23:49:11,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713192371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:49:11,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:49:11,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:49:11,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665112349] [2022-12-11 23:49:11,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:49:11,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:49:11,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:49:11,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:49:11,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:49:11,786 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:49:11,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 4031 transitions, 247237 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:49:11,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:49:11,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:49:11,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:49:31,868 INFO L130 PetriNetUnfolder]: 5323/16455 cut-off events. [2022-12-11 23:49:31,869 INFO L131 PetriNetUnfolder]: For 1195182/1300544 co-relation queries the response was YES. [2022-12-11 23:49:31,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382366 conditions, 16455 events. 5323/16455 cut-off events. For 1195182/1300544 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 188105 event pairs, 212 based on Foata normal form. 383/16774 useless extension candidates. Maximal degree in co-relation 316984. Up to 9522 conditions per place. [2022-12-11 23:49:32,066 INFO L137 encePairwiseOnDemand]: 140/173 looper letters, 3308 selfloop transitions, 604 changer transitions 101/4080 dead transitions. [2022-12-11 23:49:32,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 680 places, 4080 transitions, 257819 flow [2022-12-11 23:49:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-11 23:49:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-11 23:49:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2443 transitions. [2022-12-11 23:49:32,068 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41533492009520573 [2022-12-11 23:49:32,068 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 519 predicate places. [2022-12-11 23:49:32,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 680 places, 4080 transitions, 257819 flow [2022-12-11 23:49:32,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 668 places, 3979 transitions, 251957 flow [2022-12-11 23:49:32,332 INFO L495 AbstractCegarLoop]: Abstraction has has 668 places, 3979 transitions, 251957 flow [2022-12-11 23:49:32,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:49:32,332 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:49:32,332 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:49:32,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-11 23:49:32,332 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:49:32,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:49:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash 211524599, now seen corresponding path program 12 times [2022-12-11 23:49:32,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:49:32,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478772843] [2022-12-11 23:49:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:49:32,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:49:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:49:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:49:34,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:49:34,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478772843] [2022-12-11 23:49:34,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478772843] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:49:34,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:49:34,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-12-11 23:49:34,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471814495] [2022-12-11 23:49:34,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:49:34,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-11 23:49:34,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:49:34,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-11 23:49:34,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2022-12-11 23:49:34,704 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:49:34,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 668 places, 3979 transitions, 251957 flow. Second operand has 32 states, 32 states have (on average 68.3125) internal successors, (2186), 32 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:49:34,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:49:34,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:49:34,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:49:56,644 INFO L130 PetriNetUnfolder]: 5294/16428 cut-off events. [2022-12-11 23:49:56,644 INFO L131 PetriNetUnfolder]: For 1269936/1356374 co-relation queries the response was YES. [2022-12-11 23:49:56,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394012 conditions, 16428 events. 5294/16428 cut-off events. For 1269936/1356374 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 187862 event pairs, 240 based on Foata normal form. 422/16782 useless extension candidates. Maximal degree in co-relation 254666. Up to 9618 conditions per place. [2022-12-11 23:49:56,828 INFO L137 encePairwiseOnDemand]: 139/173 looper letters, 3267 selfloop transitions, 607 changer transitions 114/4055 dead transitions. [2022-12-11 23:49:56,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 702 places, 4055 transitions, 264187 flow [2022-12-11 23:49:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-11 23:49:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-11 23:49:56,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2514 transitions. [2022-12-11 23:49:56,831 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41519405450041286 [2022-12-11 23:49:56,831 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 541 predicate places. [2022-12-11 23:49:56,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 702 places, 4055 transitions, 264187 flow [2022-12-11 23:49:57,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 691 places, 3941 transitions, 257359 flow [2022-12-11 23:49:57,040 INFO L495 AbstractCegarLoop]: Abstraction has has 691 places, 3941 transitions, 257359 flow [2022-12-11 23:49:57,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 68.3125) internal successors, (2186), 32 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:49:57,041 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:49:57,041 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:49:57,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-11 23:49:57,041 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:49:57,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:49:57,041 INFO L85 PathProgramCache]: Analyzing trace with hash 878486899, now seen corresponding path program 13 times [2022-12-11 23:49:57,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:49:57,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489279122] [2022-12-11 23:49:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:49:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:49:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:49:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:49:59,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:49:59,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489279122] [2022-12-11 23:49:59,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489279122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:49:59,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:49:59,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-12-11 23:49:59,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918463325] [2022-12-11 23:49:59,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:49:59,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-11 23:49:59,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:49:59,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-11 23:49:59,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=910, Unknown=0, NotChecked=0, Total=992 [2022-12-11 23:49:59,185 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:49:59,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 691 places, 3941 transitions, 257359 flow. Second operand has 32 states, 32 states have (on average 68.3125) internal successors, (2186), 32 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:49:59,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:49:59,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:49:59,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:50:21,361 INFO L130 PetriNetUnfolder]: 5219/16204 cut-off events. [2022-12-11 23:50:21,362 INFO L131 PetriNetUnfolder]: For 1302781/1392586 co-relation queries the response was YES. [2022-12-11 23:50:21,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401783 conditions, 16204 events. 5219/16204 cut-off events. For 1302781/1392586 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 184808 event pairs, 242 based on Foata normal form. 417/16555 useless extension candidates. Maximal degree in co-relation 261123. Up to 9459 conditions per place. [2022-12-11 23:50:21,563 INFO L137 encePairwiseOnDemand]: 139/173 looper letters, 3204 selfloop transitions, 594 changer transitions 104/3969 dead transitions. [2022-12-11 23:50:21,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 724 places, 3969 transitions, 266573 flow [2022-12-11 23:50:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-11 23:50:21,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-11 23:50:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2436 transitions. [2022-12-11 23:50:21,565 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41414484869092144 [2022-12-11 23:50:21,565 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 563 predicate places. [2022-12-11 23:50:21,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 724 places, 3969 transitions, 266573 flow [2022-12-11 23:50:21,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 708 places, 3865 transitions, 260139 flow [2022-12-11 23:50:21,783 INFO L495 AbstractCegarLoop]: Abstraction has has 708 places, 3865 transitions, 260139 flow [2022-12-11 23:50:21,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 68.3125) internal successors, (2186), 32 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:50:21,784 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:50:21,784 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:50:21,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-11 23:50:21,784 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:50:21,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:50:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash 957954171, now seen corresponding path program 14 times [2022-12-11 23:50:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:50:21,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989351469] [2022-12-11 23:50:21,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:50:21,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:50:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:50:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:50:24,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:50:24,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989351469] [2022-12-11 23:50:24,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989351469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:50:24,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:50:24,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:50:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748858166] [2022-12-11 23:50:24,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:50:24,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:50:24,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:50:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:50:24,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:50:24,391 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:50:24,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 708 places, 3865 transitions, 260139 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:50:24,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:50:24,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:50:24,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:50:46,329 INFO L130 PetriNetUnfolder]: 5377/16568 cut-off events. [2022-12-11 23:50:46,329 INFO L131 PetriNetUnfolder]: For 1371492/1465899 co-relation queries the response was YES. [2022-12-11 23:50:46,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425324 conditions, 16568 events. 5377/16568 cut-off events. For 1371492/1465899 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 189102 event pairs, 224 based on Foata normal form. 368/16868 useless extension candidates. Maximal degree in co-relation 277414. Up to 9649 conditions per place. [2022-12-11 23:50:46,590 INFO L137 encePairwiseOnDemand]: 140/173 looper letters, 3269 selfloop transitions, 650 changer transitions 114/4100 dead transitions. [2022-12-11 23:50:46,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 742 places, 4100 transitions, 283197 flow [2022-12-11 23:50:46,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-11 23:50:46,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-11 23:50:46,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2516 transitions. [2022-12-11 23:50:46,592 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41552436003303056 [2022-12-11 23:50:46,592 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 581 predicate places. [2022-12-11 23:50:46,592 INFO L82 GeneralOperation]: Start removeDead. Operand has 742 places, 4100 transitions, 283197 flow [2022-12-11 23:50:46,819 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 731 places, 3986 transitions, 275913 flow [2022-12-11 23:50:46,820 INFO L495 AbstractCegarLoop]: Abstraction has has 731 places, 3986 transitions, 275913 flow [2022-12-11 23:50:46,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:50:46,820 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:50:46,820 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:50:46,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-11 23:50:46,820 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:50:46,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:50:46,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1758127477, now seen corresponding path program 15 times [2022-12-11 23:50:46,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:50:46,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050123281] [2022-12-11 23:50:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:50:46,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:50:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:50:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:50:48,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:50:48,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050123281] [2022-12-11 23:50:48,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050123281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:50:48,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:50:48,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-12-11 23:50:48,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034007165] [2022-12-11 23:50:48,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:50:48,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-11 23:50:48,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:50:48,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-11 23:50:48,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2022-12-11 23:50:48,977 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 173 [2022-12-11 23:50:48,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 731 places, 3986 transitions, 275913 flow. Second operand has 35 states, 35 states have (on average 67.14285714285714) internal successors, (2350), 35 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:50:48,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:50:48,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 173 [2022-12-11 23:50:48,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:51:12,681 INFO L130 PetriNetUnfolder]: 5638/17368 cut-off events. [2022-12-11 23:51:12,682 INFO L131 PetriNetUnfolder]: For 1544989/1649635 co-relation queries the response was YES. [2022-12-11 23:51:12,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460693 conditions, 17368 events. 5638/17368 cut-off events. For 1544989/1649635 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 200515 event pairs, 230 based on Foata normal form. 381/17683 useless extension candidates. Maximal degree in co-relation 294334. Up to 10268 conditions per place. [2022-12-11 23:51:12,960 INFO L137 encePairwiseOnDemand]: 134/173 looper letters, 3428 selfloop transitions, 681 changer transitions 138/4313 dead transitions. [2022-12-11 23:51:12,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 771 places, 4313 transitions, 307632 flow [2022-12-11 23:51:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-11 23:51:12,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-11 23:51:12,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2877 transitions. [2022-12-11 23:51:12,966 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.405611165938249 [2022-12-11 23:51:12,966 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 610 predicate places. [2022-12-11 23:51:12,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 771 places, 4313 transitions, 307632 flow [2022-12-11 23:51:13,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 757 places, 4175 transitions, 298478 flow [2022-12-11 23:51:13,237 INFO L495 AbstractCegarLoop]: Abstraction has has 757 places, 4175 transitions, 298478 flow [2022-12-11 23:51:13,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 67.14285714285714) internal successors, (2350), 35 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:51:13,238 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:51:13,238 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:51:13,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-11 23:51:13,238 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:51:13,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:51:13,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1583258915, now seen corresponding path program 16 times [2022-12-11 23:51:13,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:51:13,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117455708] [2022-12-11 23:51:13,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:51:13,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:51:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:51:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:51:15,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:51:15,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117455708] [2022-12-11 23:51:15,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117455708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:51:15,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:51:15,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:51:15,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222105114] [2022-12-11 23:51:15,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:51:15,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:51:15,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:51:15,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:51:15,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=745, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:51:15,525 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:51:15,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 757 places, 4175 transitions, 298478 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:51:15,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:51:15,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:51:15,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:51:39,207 INFO L130 PetriNetUnfolder]: 5528/17079 cut-off events. [2022-12-11 23:51:39,208 INFO L131 PetriNetUnfolder]: For 1564022/1696660 co-relation queries the response was YES. [2022-12-11 23:51:39,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466832 conditions, 17079 events. 5528/17079 cut-off events. For 1564022/1696660 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 196648 event pairs, 212 based on Foata normal form. 324/17339 useless extension candidates. Maximal degree in co-relation 388352. Up to 10072 conditions per place. [2022-12-11 23:51:39,413 INFO L137 encePairwiseOnDemand]: 140/173 looper letters, 3412 selfloop transitions, 629 changer transitions 109/4217 dead transitions. [2022-12-11 23:51:39,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 4217 transitions, 309296 flow [2022-12-11 23:51:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-11 23:51:39,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-11 23:51:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2367 transitions. [2022-12-11 23:51:39,417 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4146085128744088 [2022-12-11 23:51:39,417 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 628 predicate places. [2022-12-11 23:51:39,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 789 places, 4217 transitions, 309296 flow [2022-12-11 23:51:39,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 773 places, 4108 transitions, 301896 flow [2022-12-11 23:51:39,715 INFO L495 AbstractCegarLoop]: Abstraction has has 773 places, 4108 transitions, 301896 flow [2022-12-11 23:51:39,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:51:39,716 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:51:39,716 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:51:39,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-11 23:51:39,716 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:51:39,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:51:39,716 INFO L85 PathProgramCache]: Analyzing trace with hash 662561083, now seen corresponding path program 17 times [2022-12-11 23:51:39,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:51:39,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642983970] [2022-12-11 23:51:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:51:39,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:51:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:51:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:51:41,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:51:41,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642983970] [2022-12-11 23:51:41,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642983970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:51:41,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:51:41,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-12-11 23:51:41,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022102090] [2022-12-11 23:51:41,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:51:41,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-11 23:51:41,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:51:41,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-11 23:51:41,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1089, Unknown=0, NotChecked=0, Total=1190 [2022-12-11 23:51:41,632 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 173 [2022-12-11 23:51:41,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 773 places, 4108 transitions, 301896 flow. Second operand has 35 states, 35 states have (on average 67.14285714285714) internal successors, (2350), 35 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:51:41,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:51:41,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 173 [2022-12-11 23:51:41,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:52:05,850 INFO L130 PetriNetUnfolder]: 5462/16892 cut-off events. [2022-12-11 23:52:05,850 INFO L131 PetriNetUnfolder]: For 1646426/1759682 co-relation queries the response was YES. [2022-12-11 23:52:05,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474619 conditions, 16892 events. 5462/16892 cut-off events. For 1646426/1759682 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 194188 event pairs, 224 based on Foata normal form. 525/17353 useless extension candidates. Maximal degree in co-relation 305863. Up to 9933 conditions per place. [2022-12-11 23:52:06,102 INFO L137 encePairwiseOnDemand]: 132/173 looper letters, 3321 selfloop transitions, 664 changer transitions 74/4125 dead transitions. [2022-12-11 23:52:06,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 815 places, 4125 transitions, 310989 flow [2022-12-11 23:52:06,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-11 23:52:06,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-11 23:52:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3016 transitions. [2022-12-11 23:52:06,106 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40543083747815567 [2022-12-11 23:52:06,106 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 654 predicate places. [2022-12-11 23:52:06,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 815 places, 4125 transitions, 310989 flow [2022-12-11 23:52:06,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 805 places, 4051 transitions, 306142 flow [2022-12-11 23:52:06,399 INFO L495 AbstractCegarLoop]: Abstraction has has 805 places, 4051 transitions, 306142 flow [2022-12-11 23:52:06,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 67.14285714285714) internal successors, (2350), 35 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:52:06,400 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:52:06,400 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:52:06,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-11 23:52:06,400 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:52:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:52:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash -651106999, now seen corresponding path program 18 times [2022-12-11 23:52:06,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:52:06,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499347838] [2022-12-11 23:52:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:52:06,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:52:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:52:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:52:08,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:52:08,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499347838] [2022-12-11 23:52:08,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499347838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:52:08,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:52:08,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:52:08,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084436558] [2022-12-11 23:52:08,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:52:08,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:52:08,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:52:08,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:52:08,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:52:08,601 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:52:08,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 805 places, 4051 transitions, 306142 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:52:08,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:52:08,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:52:08,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:52:32,460 INFO L130 PetriNetUnfolder]: 5415/16746 cut-off events. [2022-12-11 23:52:32,461 INFO L131 PetriNetUnfolder]: For 1698324/1808224 co-relation queries the response was YES. [2022-12-11 23:52:32,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484174 conditions, 16746 events. 5415/16746 cut-off events. For 1698324/1808224 co-relation queries the response was YES. Maximal size of possible extension queue 679. Compared 191860 event pairs, 233 based on Foata normal form. 431/17113 useless extension candidates. Maximal degree in co-relation 311840. Up to 9836 conditions per place. [2022-12-11 23:52:32,670 INFO L137 encePairwiseOnDemand]: 138/173 looper letters, 3227 selfloop transitions, 676 changer transitions 98/4068 dead transitions. [2022-12-11 23:52:32,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 841 places, 4068 transitions, 315153 flow [2022-12-11 23:52:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-11 23:52:32,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-11 23:52:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 2668 transitions. [2022-12-11 23:52:32,672 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41680987345727233 [2022-12-11 23:52:32,672 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 680 predicate places. [2022-12-11 23:52:32,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 841 places, 4068 transitions, 315153 flow [2022-12-11 23:52:33,049 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 830 places, 3970 transitions, 308520 flow [2022-12-11 23:52:33,050 INFO L495 AbstractCegarLoop]: Abstraction has has 830 places, 3970 transitions, 308520 flow [2022-12-11 23:52:33,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:52:33,050 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:52:33,050 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:52:33,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-11 23:52:33,050 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:52:33,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:52:33,051 INFO L85 PathProgramCache]: Analyzing trace with hash 748060969, now seen corresponding path program 19 times [2022-12-11 23:52:33,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:52:33,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496289707] [2022-12-11 23:52:33,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:52:33,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:52:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:52:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:52:34,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:52:34,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496289707] [2022-12-11 23:52:34,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496289707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:52:34,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:52:34,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-11 23:52:34,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545518353] [2022-12-11 23:52:34,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:52:34,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-11 23:52:34,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:52:34,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-11 23:52:34,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-12-11 23:52:34,900 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:52:34,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 3970 transitions, 308520 flow. Second operand has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:52:34,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:52:34,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:52:34,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:53:01,652 INFO L130 PetriNetUnfolder]: 5762/17677 cut-off events. [2022-12-11 23:53:01,652 INFO L131 PetriNetUnfolder]: For 1869400/1988847 co-relation queries the response was YES. [2022-12-11 23:53:01,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526503 conditions, 17677 events. 5762/17677 cut-off events. For 1869400/1988847 co-relation queries the response was YES. Maximal size of possible extension queue 733. Compared 204707 event pairs, 228 based on Foata normal form. 421/18041 useless extension candidates. Maximal degree in co-relation 337404. Up to 10474 conditions per place. [2022-12-11 23:53:01,883 INFO L137 encePairwiseOnDemand]: 137/173 looper letters, 3733 selfloop transitions, 663 changer transitions 33/4496 dead transitions. [2022-12-11 23:53:01,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 865 places, 4496 transitions, 355482 flow [2022-12-11 23:53:01,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-11 23:53:01,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-11 23:53:01,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2593 transitions. [2022-12-11 23:53:01,886 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4163455362877328 [2022-12-11 23:53:01,886 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 704 predicate places. [2022-12-11 23:53:01,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 865 places, 4496 transitions, 355482 flow [2022-12-11 23:53:02,236 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 857 places, 4463 transitions, 353214 flow [2022-12-11 23:53:02,237 INFO L495 AbstractCegarLoop]: Abstraction has has 857 places, 4463 transitions, 353214 flow [2022-12-11 23:53:02,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:53:02,237 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:53:02,237 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:53:02,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-11 23:53:02,237 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:53:02,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:53:02,237 INFO L85 PathProgramCache]: Analyzing trace with hash -459941475, now seen corresponding path program 20 times [2022-12-11 23:53:02,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:53:02,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29885602] [2022-12-11 23:53:02,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:53:02,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:53:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:53:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:53:04,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:53:04,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29885602] [2022-12-11 23:53:04,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29885602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:53:04,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:53:04,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-12-11 23:53:04,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074435617] [2022-12-11 23:53:04,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:53:04,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-11 23:53:04,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:53:04,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-11 23:53:04,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=910, Unknown=0, NotChecked=0, Total=992 [2022-12-11 23:53:04,112 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 173 [2022-12-11 23:53:04,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 857 places, 4463 transitions, 353214 flow. Second operand has 32 states, 32 states have (on average 67.34375) internal successors, (2155), 32 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:53:04,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:53:04,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 173 [2022-12-11 23:53:04,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:53:38,005 INFO L130 PetriNetUnfolder]: 6060/18556 cut-off events. [2022-12-11 23:53:38,005 INFO L131 PetriNetUnfolder]: For 2030590/2183509 co-relation queries the response was YES. [2022-12-11 23:53:38,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568043 conditions, 18556 events. 6060/18556 cut-off events. For 2030590/2183509 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 217316 event pairs, 215 based on Foata normal form. 345/18842 useless extension candidates. Maximal degree in co-relation 471815. Up to 11167 conditions per place. [2022-12-11 23:53:38,385 INFO L137 encePairwiseOnDemand]: 134/173 looper letters, 4164 selfloop transitions, 670 changer transitions 33/4933 dead transitions. [2022-12-11 23:53:38,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 896 places, 4933 transitions, 397864 flow [2022-12-11 23:53:38,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-11 23:53:38,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-12-11 23:53:38,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 2806 transitions. [2022-12-11 23:53:38,388 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4054913294797688 [2022-12-11 23:53:38,389 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 735 predicate places. [2022-12-11 23:53:38,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 896 places, 4933 transitions, 397864 flow [2022-12-11 23:53:38,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 887 places, 4900 transitions, 395530 flow [2022-12-11 23:53:38,697 INFO L495 AbstractCegarLoop]: Abstraction has has 887 places, 4900 transitions, 395530 flow [2022-12-11 23:53:38,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 67.34375) internal successors, (2155), 32 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:53:38,697 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:53:38,697 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:53:38,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-11 23:53:38,698 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:53:38,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:53:38,698 INFO L85 PathProgramCache]: Analyzing trace with hash -3157225, now seen corresponding path program 21 times [2022-12-11 23:53:38,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:53:38,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505486560] [2022-12-11 23:53:38,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:53:38,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:53:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:53:40,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:53:40,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:53:40,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505486560] [2022-12-11 23:53:40,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505486560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:53:40,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:53:40,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:53:40,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202839308] [2022-12-11 23:53:40,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:53:40,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:53:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:53:40,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:53:40,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:53:40,928 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:53:40,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 887 places, 4900 transitions, 395530 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:53:40,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:53:40,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:53:40,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:54:26,387 INFO L130 PetriNetUnfolder]: 6389/19492 cut-off events. [2022-12-11 23:54:26,388 INFO L131 PetriNetUnfolder]: For 2252957/2372940 co-relation queries the response was YES. [2022-12-11 23:54:26,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612745 conditions, 19492 events. 6389/19492 cut-off events. For 2252957/2372940 co-relation queries the response was YES. Maximal size of possible extension queue 812. Compared 230502 event pairs, 241 based on Foata normal form. 507/19929 useless extension candidates. Maximal degree in co-relation 386127. Up to 11908 conditions per place. [2022-12-11 23:54:26,755 INFO L137 encePairwiseOnDemand]: 138/173 looper letters, 4437 selfloop transitions, 812 changer transitions 33/5349 dead transitions. [2022-12-11 23:54:26,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 5349 transitions, 441333 flow [2022-12-11 23:54:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-11 23:54:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-11 23:54:26,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2463 transitions. [2022-12-11 23:54:26,756 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41873512410744645 [2022-12-11 23:54:26,757 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 759 predicate places. [2022-12-11 23:54:26,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 920 places, 5349 transitions, 441333 flow [2022-12-11 23:54:27,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 912 places, 5316 transitions, 438933 flow [2022-12-11 23:54:27,105 INFO L495 AbstractCegarLoop]: Abstraction has has 912 places, 5316 transitions, 438933 flow [2022-12-11 23:54:27,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:54:27,105 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:54:27,105 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:54:27,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-11 23:54:27,105 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:54:27,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:54:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1292964365, now seen corresponding path program 22 times [2022-12-11 23:54:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:54:27,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889167811] [2022-12-11 23:54:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:54:27,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:54:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:54:28,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:54:28,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:54:28,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889167811] [2022-12-11 23:54:28,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889167811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:54:28,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:54:28,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-11 23:54:28,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684052721] [2022-12-11 23:54:28,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:54:28,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-11 23:54:28,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:54:28,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-11 23:54:28,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-12-11 23:54:28,963 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:54:28,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 912 places, 5316 transitions, 438933 flow. Second operand has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:54:28,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:54:28,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:54:28,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:55:21,828 INFO L130 PetriNetUnfolder]: 6418/19652 cut-off events. [2022-12-11 23:55:21,828 INFO L131 PetriNetUnfolder]: For 2347351/2503927 co-relation queries the response was YES. [2022-12-11 23:55:21,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633271 conditions, 19652 events. 6418/19652 cut-off events. For 2347351/2503927 co-relation queries the response was YES. Maximal size of possible extension queue 809. Compared 233080 event pairs, 220 based on Foata normal form. 396/19978 useless extension candidates. Maximal degree in co-relation 528681. Up to 12215 conditions per place. [2022-12-11 23:55:22,102 INFO L137 encePairwiseOnDemand]: 138/173 looper letters, 4603 selfloop transitions, 600 changer transitions 158/5428 dead transitions. [2022-12-11 23:55:22,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 944 places, 5428 transitions, 458256 flow [2022-12-11 23:55:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-11 23:55:22,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-11 23:55:22,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2373 transitions. [2022-12-11 23:55:22,109 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41565948502364686 [2022-12-11 23:55:22,110 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 783 predicate places. [2022-12-11 23:55:22,110 INFO L82 GeneralOperation]: Start removeDead. Operand has 944 places, 5428 transitions, 458256 flow [2022-12-11 23:55:22,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 934 places, 5270 transitions, 445645 flow [2022-12-11 23:55:22,487 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 5270 transitions, 445645 flow [2022-12-11 23:55:22,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:55:22,488 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:55:22,488 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:55:22,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-11 23:55:22,488 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:55:22,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:55:22,488 INFO L85 PathProgramCache]: Analyzing trace with hash 59792079, now seen corresponding path program 23 times [2022-12-11 23:55:22,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:55:22,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196394796] [2022-12-11 23:55:22,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:55:22,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:55:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:55:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:55:24,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:55:24,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196394796] [2022-12-11 23:55:24,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196394796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:55:24,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:55:24,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-11 23:55:24,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586183956] [2022-12-11 23:55:24,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:55:24,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 23:55:24,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:55:24,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 23:55:24,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-12-11 23:55:24,583 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:55:24,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 5270 transitions, 445645 flow. Second operand has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:55:24,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:55:24,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:55:24,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:56:15,846 INFO L130 PetriNetUnfolder]: 6351/19451 cut-off events. [2022-12-11 23:56:15,847 INFO L131 PetriNetUnfolder]: For 2428690/2594239 co-relation queries the response was YES. [2022-12-11 23:56:15,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642409 conditions, 19451 events. 6351/19451 cut-off events. For 2428690/2594239 co-relation queries the response was YES. Maximal size of possible extension queue 802. Compared 230195 event pairs, 230 based on Foata normal form. 360/19741 useless extension candidates. Maximal degree in co-relation 538305. Up to 12456 conditions per place. [2022-12-11 23:56:16,116 INFO L137 encePairwiseOnDemand]: 140/173 looper letters, 4617 selfloop transitions, 546 changer transitions 101/5331 dead transitions. [2022-12-11 23:56:16,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 965 places, 5331 transitions, 460929 flow [2022-12-11 23:56:16,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-11 23:56:16,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-11 23:56:16,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 2296 transitions. [2022-12-11 23:56:16,118 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4147398843930636 [2022-12-11 23:56:16,118 INFO L295 CegarLoopForPetriNet]: 161 programPoint places, 804 predicate places. [2022-12-11 23:56:16,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 965 places, 5331 transitions, 460929 flow [2022-12-11 23:56:16,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 953 places, 5230 transitions, 452643 flow [2022-12-11 23:56:16,462 INFO L495 AbstractCegarLoop]: Abstraction has has 953 places, 5230 transitions, 452643 flow [2022-12-11 23:56:16,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 68.55172413793103) internal successors, (1988), 29 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:56:16,462 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:56:16,462 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:56:16,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-11 23:56:16,463 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-11 23:56:16,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:56:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1423373407, now seen corresponding path program 24 times [2022-12-11 23:56:16,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:56:16,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511895720] [2022-12-11 23:56:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:56:16,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:56:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:56:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:56:18,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:56:18,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511895720] [2022-12-11 23:56:18,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511895720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:56:18,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:56:18,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-11 23:56:18,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100709178] [2022-12-11 23:56:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:56:18,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-11 23:56:18,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:56:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-11 23:56:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2022-12-11 23:56:18,496 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 173 [2022-12-11 23:56:18,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 5230 transitions, 452643 flow. Second operand has 30 states, 30 states have (on average 68.46666666666667) internal successors, (2054), 30 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:56:18,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:56:18,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 173 [2022-12-11 23:56:18,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-11 23:56:38,981 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 [2022-12-11 23:56:38,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-11 23:56:38,994 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-11 23:56:38,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-11 23:56:38,994 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). [2022-12-11 23:56:38,996 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-11 23:56:38,998 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-11 23:56:38,998 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-11 23:56:38,998 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-11 23:56:38,999 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-11 23:56:38,999 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-11 23:56:38,999 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-11 23:56:38,999 INFO L445 BasicCegarLoop]: Path program histogram: [24, 22, 1, 1, 1, 1, 1] [2022-12-11 23:56:39,002 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:56:39,002 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:56:39,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:56:39 BasicIcfg [2022-12-11 23:56:39,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:56:39,011 INFO L158 Benchmark]: Toolchain (without parser) took 779611.09ms. Allocated memory was 199.2MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 172.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-12-11 23:56:39,011 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory was 175.7MB in the beginning and 175.7MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:56:39,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 833.63ms. Allocated memory is still 199.2MB. Free memory was 171.8MB in the beginning and 115.7MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-11 23:56:39,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.08ms. Allocated memory is still 199.2MB. Free memory was 115.7MB in the beginning and 112.0MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 23:56:39,012 INFO L158 Benchmark]: Boogie Preprocessor took 62.17ms. Allocated memory is still 199.2MB. Free memory was 112.0MB in the beginning and 108.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 23:56:39,012 INFO L158 Benchmark]: RCFGBuilder took 618.13ms. Allocated memory is still 199.2MB. Free memory was 108.9MB in the beginning and 84.8MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-11 23:56:39,012 INFO L158 Benchmark]: TraceAbstraction took 778011.83ms. Allocated memory was 199.2MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 83.7MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-12-11 23:56:39,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory was 175.7MB in the beginning and 175.7MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 833.63ms. Allocated memory is still 199.2MB. Free memory was 171.8MB in the beginning and 115.7MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.08ms. Allocated memory is still 199.2MB. Free memory was 115.7MB in the beginning and 112.0MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.17ms. Allocated memory is still 199.2MB. Free memory was 112.0MB in the beginning and 108.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 618.13ms. Allocated memory is still 199.2MB. Free memory was 108.9MB in the beginning and 84.8MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 778011.83ms. Allocated memory was 199.2MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 83.7MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). - TimeoutResultAtElement [Line: 1726]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (30states, 66/173 universal loopers) in iteration 51,while PetriNetUnfolder was constructing finite prefix that currently has 302093 conditions, 8173 events (3300/8172 cut-off events. For 750236/852392 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 90453 event pairs, 99 based on Foata normal form. 300/9110 useless extension candidates. Maximal degree in co-relation 300183. Up to 5206 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 181 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 7.7s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 777.8s, OverallIterations: 51, TraceHistogramMax: 1, PathProgramHistogramMax: 24, EmptinessCheckTime: 0.0s, AutomataDifference: 696.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19837 SdHoareTripleChecker+Valid, 26.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19837 mSDsluCounter, 25500 SdHoareTripleChecker+Invalid, 22.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22712 mSDsCounter, 1880 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47968 IncrementalHoareTripleChecker+Invalid, 49848 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1880 mSolverCounterUnsat, 2788 mSDtfsCounter, 47968 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2023 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1818 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16626 ImplicationChecksByTransitivity, 65.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=452643occurred in iteration=50, InterpolantAutomatonStates: 1142, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.7s AutomataMinimizationTime, 50 MinimizatonAttempts, 132015 StatesRemovedByMinimization, 50 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 70.6s InterpolantComputationTime, 5780 NumberOfCodeBlocks, 5780 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 5729 ConstructedInterpolants, 0 QuantifiedInterpolants, 88192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 51 InterpolantComputations, 51 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown