/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 17:07:07,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:07:07,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:07:07,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:07:07,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:07:07,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:07:07,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:07:07,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:07:07,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:07:07,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:07:07,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:07:07,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:07:07,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:07:07,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:07:07,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:07:07,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:07:07,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:07:07,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:07:07,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:07:07,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:07:07,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:07:07,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:07:07,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:07:07,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:07:07,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:07:07,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:07:07,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:07:07,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:07:07,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:07:07,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:07:07,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:07:07,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:07:07,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:07:07,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:07:07,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:07:07,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:07:07,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:07:07,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:07:07,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:07:07,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:07:07,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:07:07,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 17:07:07,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:07:07,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:07:07,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:07:07,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:07:07,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:07:07,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:07:07,894 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:07:07,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:07:07,894 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:07:07,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:07:07,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:07:07,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:07:07,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:07:07,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:07:07,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:07:07,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:07:07,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:07:07,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:07:07,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:07:07,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:07:07,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:07:07,896 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:07:07,896 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:07:07,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:07:08,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:07:08,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:07:08,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:07:08,160 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:07:08,160 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:07:08,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-12-06 17:07:09,135 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:07:09,298 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:07:09,298 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-12-06 17:07:09,304 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60fe33cd6/081b2c905417408e85a07a0a7cdf67dc/FLAG463feabdb [2022-12-06 17:07:09,314 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60fe33cd6/081b2c905417408e85a07a0a7cdf67dc [2022-12-06 17:07:09,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:07:09,317 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:07:09,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:07:09,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:07:09,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:07:09,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8dd1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09, skipping insertion in model container [2022-12-06 17:07:09,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:07:09,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:07:09,438 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-12-06 17:07:09,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:07:09,458 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:07:09,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-12-06 17:07:09,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:07:09,532 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:07:09,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09 WrapperNode [2022-12-06 17:07:09,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:07:09,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:07:09,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:07:09,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:07:09,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,595 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 142 [2022-12-06 17:07:09,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:07:09,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:07:09,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:07:09,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:07:09,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,623 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:07:09,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:07:09,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:07:09,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:07:09,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (1/1) ... [2022-12-06 17:07:09,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:07:09,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:07:09,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 17:07:09,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 17:07:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:07:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:07:09,695 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:07:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:07:09,696 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:07:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:07:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:07:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:07:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:07:09,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:07:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:07:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:07:09,697 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 17:07:09,808 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:07:09,810 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:07:09,977 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:07:09,983 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:07:09,983 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 17:07:09,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:07:09 BoogieIcfgContainer [2022-12-06 17:07:09,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:07:09,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:07:09,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:07:09,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:07:09,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:07:09" (1/3) ... [2022-12-06 17:07:09,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@955af3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:07:09, skipping insertion in model container [2022-12-06 17:07:09,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:09" (2/3) ... [2022-12-06 17:07:09,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@955af3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:07:09, skipping insertion in model container [2022-12-06 17:07:09,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:07:09" (3/3) ... [2022-12-06 17:07:09,990 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-12-06 17:07:10,003 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:07:10,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:07:10,004 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:07:10,112 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 17:07:10,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 169 transitions, 354 flow [2022-12-06 17:07:10,212 INFO L130 PetriNetUnfolder]: 15/167 cut-off events. [2022-12-06 17:07:10,212 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 17:07:10,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 15/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 304 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-06 17:07:10,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 169 transitions, 354 flow [2022-12-06 17:07:10,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 159 transitions, 330 flow [2022-12-06 17:07:10,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:07:10,231 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;@581534cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:07:10,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 17:07:10,265 INFO L130 PetriNetUnfolder]: 15/158 cut-off events. [2022-12-06 17:07:10,265 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 17:07:10,265 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:10,266 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:10,266 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:10,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:10,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1949857143, now seen corresponding path program 1 times [2022-12-06 17:07:10,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:10,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690279542] [2022-12-06 17:07:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:10,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:11,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:11,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690279542] [2022-12-06 17:07:11,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690279542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:11,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:11,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:11,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411744909] [2022-12-06 17:07:11,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:11,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:11,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:11,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:11,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:11,072 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:11,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 159 transitions, 330 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:11,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:11,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:11,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:11,733 INFO L130 PetriNetUnfolder]: 217/1177 cut-off events. [2022-12-06 17:07:11,734 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2022-12-06 17:07:11,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1710 conditions, 1177 events. 217/1177 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 8849 event pairs, 46 based on Foata normal form. 64/1093 useless extension candidates. Maximal degree in co-relation 1287. Up to 151 conditions per place. [2022-12-06 17:07:11,745 INFO L137 encePairwiseOnDemand]: 139/169 looper letters, 113 selfloop transitions, 35 changer transitions 31/290 dead transitions. [2022-12-06 17:07:11,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 290 transitions, 989 flow [2022-12-06 17:07:11,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:07:11,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:07:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2737 transitions. [2022-12-06 17:07:11,759 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7712031558185405 [2022-12-06 17:07:11,765 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 20 predicate places. [2022-12-06 17:07:11,765 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 290 transitions, 989 flow [2022-12-06 17:07:11,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:11,766 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:11,766 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:11,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:07:11,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:11,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:11,767 INFO L85 PathProgramCache]: Analyzing trace with hash -912217899, now seen corresponding path program 2 times [2022-12-06 17:07:11,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:11,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287045033] [2022-12-06 17:07:11,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:11,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:12,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:12,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287045033] [2022-12-06 17:07:12,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287045033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:12,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:12,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:12,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429796927] [2022-12-06 17:07:12,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:12,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:12,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:12,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:12,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:12,035 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:12,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 290 transitions, 989 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:12,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:12,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:12,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:12,670 INFO L130 PetriNetUnfolder]: 218/1535 cut-off events. [2022-12-06 17:07:12,670 INFO L131 PetriNetUnfolder]: For 377/545 co-relation queries the response was YES. [2022-12-06 17:07:12,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2843 conditions, 1535 events. 218/1535 cut-off events. For 377/545 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 12903 event pairs, 29 based on Foata normal form. 41/1422 useless extension candidates. Maximal degree in co-relation 1868. Up to 241 conditions per place. [2022-12-06 17:07:12,677 INFO L137 encePairwiseOnDemand]: 152/169 looper letters, 248 selfloop transitions, 28 changer transitions 77/464 dead transitions. [2022-12-06 17:07:12,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 464 transitions, 2451 flow [2022-12-06 17:07:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2550 transitions. [2022-12-06 17:07:12,682 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7544378698224852 [2022-12-06 17:07:12,683 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 39 predicate places. [2022-12-06 17:07:12,683 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 464 transitions, 2451 flow [2022-12-06 17:07:12,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:12,684 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:12,685 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:12,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:07:12,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:12,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:12,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2012111993, now seen corresponding path program 3 times [2022-12-06 17:07:12,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:12,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179639272] [2022-12-06 17:07:12,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:12,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:12,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:12,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179639272] [2022-12-06 17:07:12,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179639272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:12,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:12,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:12,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269842234] [2022-12-06 17:07:12,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:12,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:12,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:12,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:12,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:12,909 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:12,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 464 transitions, 2451 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:12,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:12,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:12,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:13,371 INFO L130 PetriNetUnfolder]: 229/1661 cut-off events. [2022-12-06 17:07:13,372 INFO L131 PetriNetUnfolder]: For 841/1371 co-relation queries the response was YES. [2022-12-06 17:07:13,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3794 conditions, 1661 events. 229/1661 cut-off events. For 841/1371 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 14377 event pairs, 29 based on Foata normal form. 45/1547 useless extension candidates. Maximal degree in co-relation 2357. Up to 276 conditions per place. [2022-12-06 17:07:13,378 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 277 selfloop transitions, 28 changer transitions 110/526 dead transitions. [2022-12-06 17:07:13,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 526 transitions, 3680 flow [2022-12-06 17:07:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2417 transitions. [2022-12-06 17:07:13,383 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7527250077857365 [2022-12-06 17:07:13,384 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 57 predicate places. [2022-12-06 17:07:13,385 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 526 transitions, 3680 flow [2022-12-06 17:07:13,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:13,385 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:13,385 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:13,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 17:07:13,386 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:13,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:13,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1558844721, now seen corresponding path program 4 times [2022-12-06 17:07:13,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:13,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968938919] [2022-12-06 17:07:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:13,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:13,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968938919] [2022-12-06 17:07:13,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968938919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:13,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:13,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:13,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383382825] [2022-12-06 17:07:13,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:13,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:13,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:13,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:13,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:13,603 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:13,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 526 transitions, 3680 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:13,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:13,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:13,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:14,087 INFO L130 PetriNetUnfolder]: 315/2254 cut-off events. [2022-12-06 17:07:14,088 INFO L131 PetriNetUnfolder]: For 2016/3469 co-relation queries the response was YES. [2022-12-06 17:07:14,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6273 conditions, 2254 events. 315/2254 cut-off events. For 2016/3469 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 21394 event pairs, 22 based on Foata normal form. 33/2089 useless extension candidates. Maximal degree in co-relation 3749. Up to 445 conditions per place. [2022-12-06 17:07:14,098 INFO L137 encePairwiseOnDemand]: 148/169 looper letters, 387 selfloop transitions, 67 changer transitions 155/720 dead transitions. [2022-12-06 17:07:14,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 720 transitions, 6507 flow [2022-12-06 17:07:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:14,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2302 transitions. [2022-12-06 17:07:14,103 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7567389875082183 [2022-12-06 17:07:14,104 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 74 predicate places. [2022-12-06 17:07:14,104 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 720 transitions, 6507 flow [2022-12-06 17:07:14,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:14,105 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:14,105 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:14,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 17:07:14,105 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:14,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:14,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2081871205, now seen corresponding path program 5 times [2022-12-06 17:07:14,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:14,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647296391] [2022-12-06 17:07:14,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:14,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:14,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:14,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:14,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647296391] [2022-12-06 17:07:14,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647296391] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:14,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:14,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:14,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860957636] [2022-12-06 17:07:14,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:14,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:14,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:14,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:14,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:14,360 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:14,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 720 transitions, 6507 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:14,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:14,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:14,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:14,875 INFO L130 PetriNetUnfolder]: 315/2228 cut-off events. [2022-12-06 17:07:14,876 INFO L131 PetriNetUnfolder]: For 2969/4725 co-relation queries the response was YES. [2022-12-06 17:07:14,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7216 conditions, 2228 events. 315/2228 cut-off events. For 2969/4725 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 21085 event pairs, 21 based on Foata normal form. 37/2067 useless extension candidates. Maximal degree in co-relation 4270. Up to 444 conditions per place. [2022-12-06 17:07:14,886 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 402 selfloop transitions, 27 changer transitions 179/719 dead transitions. [2022-12-06 17:07:14,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 719 transitions, 7713 flow [2022-12-06 17:07:14,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:07:14,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:07:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2034 transitions. [2022-12-06 17:07:14,890 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7522189349112426 [2022-12-06 17:07:14,892 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 89 predicate places. [2022-12-06 17:07:14,892 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 719 transitions, 7713 flow [2022-12-06 17:07:14,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:14,893 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:14,893 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:14,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 17:07:14,894 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:14,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:14,894 INFO L85 PathProgramCache]: Analyzing trace with hash -118662225, now seen corresponding path program 6 times [2022-12-06 17:07:14,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:14,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285946925] [2022-12-06 17:07:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:15,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:15,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285946925] [2022-12-06 17:07:15,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285946925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:15,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:15,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:15,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100229889] [2022-12-06 17:07:15,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:15,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:15,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:15,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:15,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:15,138 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:15,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 719 transitions, 7713 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:15,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:15,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:15,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:15,624 INFO L130 PetriNetUnfolder]: 344/2505 cut-off events. [2022-12-06 17:07:15,624 INFO L131 PetriNetUnfolder]: For 4843/7570 co-relation queries the response was YES. [2022-12-06 17:07:15,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9261 conditions, 2505 events. 344/2505 cut-off events. For 4843/7570 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 24522 event pairs, 15 based on Foata normal form. 53/2353 useless extension candidates. Maximal degree in co-relation 5343. Up to 541 conditions per place. [2022-12-06 17:07:15,634 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 478 selfloop transitions, 30 changer transitions 211/830 dead transitions. [2022-12-06 17:07:15,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 830 transitions, 10525 flow [2022-12-06 17:07:15,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:07:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:07:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2174 transitions. [2022-12-06 17:07:15,638 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7567003132613992 [2022-12-06 17:07:15,639 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 105 predicate places. [2022-12-06 17:07:15,639 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 830 transitions, 10525 flow [2022-12-06 17:07:15,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:15,639 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:15,639 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:15,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 17:07:15,640 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:15,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:15,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1405645367, now seen corresponding path program 7 times [2022-12-06 17:07:15,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:15,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541281582] [2022-12-06 17:07:15,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:15,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:15,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:15,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541281582] [2022-12-06 17:07:15,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541281582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:15,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:15,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699203389] [2022-12-06 17:07:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:15,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:15,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:15,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:15,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:15,818 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:15,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 830 transitions, 10525 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:15,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:15,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:15,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:16,394 INFO L130 PetriNetUnfolder]: 346/2529 cut-off events. [2022-12-06 17:07:16,394 INFO L131 PetriNetUnfolder]: For 6737/10465 co-relation queries the response was YES. [2022-12-06 17:07:16,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10566 conditions, 2529 events. 346/2529 cut-off events. For 6737/10465 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 24871 event pairs, 20 based on Foata normal form. 82/2401 useless extension candidates. Maximal degree in co-relation 6002. Up to 559 conditions per place. [2022-12-06 17:07:16,406 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 478 selfloop transitions, 28 changer transitions 237/854 dead transitions. [2022-12-06 17:07:16,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 854 transitions, 12356 flow [2022-12-06 17:07:16,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2294 transitions. [2022-12-06 17:07:16,409 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7541091387245233 [2022-12-06 17:07:16,409 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 122 predicate places. [2022-12-06 17:07:16,409 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 854 transitions, 12356 flow [2022-12-06 17:07:16,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:16,410 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:16,410 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:16,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 17:07:16,410 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:16,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:16,411 INFO L85 PathProgramCache]: Analyzing trace with hash -701374857, now seen corresponding path program 8 times [2022-12-06 17:07:16,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:16,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867061565] [2022-12-06 17:07:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:16,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:16,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:16,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:16,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867061565] [2022-12-06 17:07:16,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867061565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:16,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:16,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:16,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455690853] [2022-12-06 17:07:16,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:16,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:16,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:16,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:16,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:16,600 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:16,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 854 transitions, 12356 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:16,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:16,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:16,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:17,137 INFO L130 PetriNetUnfolder]: 349/2610 cut-off events. [2022-12-06 17:07:17,137 INFO L131 PetriNetUnfolder]: For 8600/11711 co-relation queries the response was YES. [2022-12-06 17:07:17,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11995 conditions, 2610 events. 349/2610 cut-off events. For 8600/11711 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 26097 event pairs, 19 based on Foata normal form. 50/2450 useless extension candidates. Maximal degree in co-relation 6944. Up to 581 conditions per place. [2022-12-06 17:07:17,150 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 475 selfloop transitions, 26 changer transitions 267/879 dead transitions. [2022-12-06 17:07:17,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 879 transitions, 14304 flow [2022-12-06 17:07:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2551 transitions. [2022-12-06 17:07:17,153 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7547337278106508 [2022-12-06 17:07:17,153 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 141 predicate places. [2022-12-06 17:07:17,154 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 879 transitions, 14304 flow [2022-12-06 17:07:17,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:17,154 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:17,154 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:17,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 17:07:17,155 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:17,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:17,155 INFO L85 PathProgramCache]: Analyzing trace with hash -469091527, now seen corresponding path program 9 times [2022-12-06 17:07:17,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:17,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097848260] [2022-12-06 17:07:17,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:17,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:17,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:17,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:17,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097848260] [2022-12-06 17:07:17,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097848260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:17,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:17,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:17,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878770098] [2022-12-06 17:07:17,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:17,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:17,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:17,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:17,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:17,345 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:17,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 879 transitions, 14304 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:17,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:17,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:17,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:17,888 INFO L130 PetriNetUnfolder]: 350/2661 cut-off events. [2022-12-06 17:07:17,889 INFO L131 PetriNetUnfolder]: For 11564/16134 co-relation queries the response was YES. [2022-12-06 17:07:17,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13402 conditions, 2661 events. 350/2661 cut-off events. For 11564/16134 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 26626 event pairs, 21 based on Foata normal form. 43/2490 useless extension candidates. Maximal degree in co-relation 7373. Up to 599 conditions per place. [2022-12-06 17:07:17,897 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 470 selfloop transitions, 26 changer transitions 293/900 dead transitions. [2022-12-06 17:07:17,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 900 transitions, 16269 flow [2022-12-06 17:07:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:17,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2294 transitions. [2022-12-06 17:07:17,900 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7541091387245233 [2022-12-06 17:07:17,900 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 158 predicate places. [2022-12-06 17:07:17,900 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 900 transitions, 16269 flow [2022-12-06 17:07:17,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:17,901 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:17,901 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:17,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 17:07:17,901 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:17,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash -924181489, now seen corresponding path program 10 times [2022-12-06 17:07:17,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:17,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536223579] [2022-12-06 17:07:17,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:17,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:18,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:18,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536223579] [2022-12-06 17:07:18,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536223579] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:18,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:18,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:18,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807079557] [2022-12-06 17:07:18,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:18,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:18,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:18,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:18,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:18,065 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:18,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 900 transitions, 16269 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:18,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:18,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:18,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:18,668 INFO L130 PetriNetUnfolder]: 349/2690 cut-off events. [2022-12-06 17:07:18,668 INFO L131 PetriNetUnfolder]: For 13638/17243 co-relation queries the response was YES. [2022-12-06 17:07:18,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14790 conditions, 2690 events. 349/2690 cut-off events. For 13638/17243 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 27130 event pairs, 18 based on Foata normal form. 35/2512 useless extension candidates. Maximal degree in co-relation 8030. Up to 613 conditions per place. [2022-12-06 17:07:18,679 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 468 selfloop transitions, 19 changer transitions 320/918 dead transitions. [2022-12-06 17:07:18,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 918 transitions, 18249 flow [2022-12-06 17:07:18,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:07:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:07:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2171 transitions. [2022-12-06 17:07:18,682 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.755656108597285 [2022-12-06 17:07:18,683 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 174 predicate places. [2022-12-06 17:07:18,683 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 918 transitions, 18249 flow [2022-12-06 17:07:18,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:18,684 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:18,684 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:18,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 17:07:18,684 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1675486745, now seen corresponding path program 11 times [2022-12-06 17:07:18,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:18,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019642103] [2022-12-06 17:07:18,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:18,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:18,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:18,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019642103] [2022-12-06 17:07:18,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019642103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:18,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:18,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:18,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608897737] [2022-12-06 17:07:18,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:18,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:18,876 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:18,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 918 transitions, 18249 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:18,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:18,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:18,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:19,546 INFO L130 PetriNetUnfolder]: 349/2685 cut-off events. [2022-12-06 17:07:19,546 INFO L131 PetriNetUnfolder]: For 16828/21175 co-relation queries the response was YES. [2022-12-06 17:07:19,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15969 conditions, 2685 events. 349/2685 cut-off events. For 16828/21175 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 27102 event pairs, 16 based on Foata normal form. 103/2576 useless extension candidates. Maximal degree in co-relation 8639. Up to 612 conditions per place. [2022-12-06 17:07:19,556 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 445 selfloop transitions, 14 changer transitions 347/917 dead transitions. [2022-12-06 17:07:19,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 917 transitions, 19839 flow [2022-12-06 17:07:19,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:19,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:19,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2551 transitions. [2022-12-06 17:07:19,559 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7547337278106508 [2022-12-06 17:07:19,559 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 193 predicate places. [2022-12-06 17:07:19,559 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 917 transitions, 19839 flow [2022-12-06 17:07:19,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:19,560 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:19,560 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:19,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 17:07:19,560 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:19,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:19,560 INFO L85 PathProgramCache]: Analyzing trace with hash 981751353, now seen corresponding path program 12 times [2022-12-06 17:07:19,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:19,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223158979] [2022-12-06 17:07:19,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:19,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:19,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:19,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:19,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223158979] [2022-12-06 17:07:19,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223158979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:19,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:19,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:19,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932409528] [2022-12-06 17:07:19,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:19,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:19,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:19,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:19,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:19,720 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:19,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 917 transitions, 19839 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:19,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:19,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:19,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:20,401 INFO L130 PetriNetUnfolder]: 374/3037 cut-off events. [2022-12-06 17:07:20,401 INFO L131 PetriNetUnfolder]: For 26740/34164 co-relation queries the response was YES. [2022-12-06 17:07:20,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19966 conditions, 3037 events. 374/3037 cut-off events. For 26740/34164 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 31627 event pairs, 16 based on Foata normal form. 58/2877 useless extension candidates. Maximal degree in co-relation 10315. Up to 765 conditions per place. [2022-12-06 17:07:20,413 INFO L137 encePairwiseOnDemand]: 151/169 looper letters, 561 selfloop transitions, 37 changer transitions 393/1102 dead transitions. [2022-12-06 17:07:20,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 1102 transitions, 26330 flow [2022-12-06 17:07:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2296 transitions. [2022-12-06 17:07:20,416 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7547666009204471 [2022-12-06 17:07:20,416 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 210 predicate places. [2022-12-06 17:07:20,416 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 1102 transitions, 26330 flow [2022-12-06 17:07:20,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:20,417 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:20,417 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:20,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 17:07:20,417 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:20,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2067132837, now seen corresponding path program 13 times [2022-12-06 17:07:20,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:20,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037328214] [2022-12-06 17:07:20,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:20,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:20,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:20,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037328214] [2022-12-06 17:07:20,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037328214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:20,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:20,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:20,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145538885] [2022-12-06 17:07:20,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:20,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:20,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:20,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:20,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:20,583 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:20,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1102 transitions, 26330 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:20,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:20,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:20,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:21,432 INFO L130 PetriNetUnfolder]: 383/3091 cut-off events. [2022-12-06 17:07:21,432 INFO L131 PetriNetUnfolder]: For 30876/40147 co-relation queries the response was YES. [2022-12-06 17:07:21,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21967 conditions, 3091 events. 383/3091 cut-off events. For 30876/40147 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 32424 event pairs, 13 based on Foata normal form. 117/2991 useless extension candidates. Maximal degree in co-relation 11273. Up to 799 conditions per place. [2022-12-06 17:07:21,444 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 561 selfloop transitions, 49 changer transitions 418/1139 dead transitions. [2022-12-06 17:07:21,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1139 transitions, 29363 flow [2022-12-06 17:07:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:07:21,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:07:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2157 transitions. [2022-12-06 17:07:21,447 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7507831534980857 [2022-12-06 17:07:21,447 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 226 predicate places. [2022-12-06 17:07:21,447 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 1139 transitions, 29363 flow [2022-12-06 17:07:21,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:21,448 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:21,448 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:21,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 17:07:21,448 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:21,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:21,449 INFO L85 PathProgramCache]: Analyzing trace with hash -379277927, now seen corresponding path program 14 times [2022-12-06 17:07:21,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:21,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441724127] [2022-12-06 17:07:21,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:21,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:21,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:21,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441724127] [2022-12-06 17:07:21,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441724127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:21,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:21,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:21,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65385756] [2022-12-06 17:07:21,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:21,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:21,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:21,574 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:21,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 1139 transitions, 29363 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:21,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:21,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:21,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:22,389 INFO L130 PetriNetUnfolder]: 388/3165 cut-off events. [2022-12-06 17:07:22,389 INFO L131 PetriNetUnfolder]: For 37799/49447 co-relation queries the response was YES. [2022-12-06 17:07:22,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23861 conditions, 3165 events. 388/3165 cut-off events. For 37799/49447 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 33283 event pairs, 15 based on Foata normal form. 88/3023 useless extension candidates. Maximal degree in co-relation 12104. Up to 821 conditions per place. [2022-12-06 17:07:22,406 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 562 selfloop transitions, 43 changer transitions 448/1164 dead transitions. [2022-12-06 17:07:22,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 1164 transitions, 32181 flow [2022-12-06 17:07:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2551 transitions. [2022-12-06 17:07:22,409 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7547337278106508 [2022-12-06 17:07:22,409 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 245 predicate places. [2022-12-06 17:07:22,410 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 1164 transitions, 32181 flow [2022-12-06 17:07:22,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:22,410 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:22,410 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:22,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 17:07:22,411 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:22,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:22,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1575222173, now seen corresponding path program 15 times [2022-12-06 17:07:22,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:22,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368809598] [2022-12-06 17:07:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:22,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:22,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:22,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368809598] [2022-12-06 17:07:22,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368809598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:22,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:22,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:22,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264141849] [2022-12-06 17:07:22,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:22,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:22,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:22,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:22,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:22,618 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:22,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 1164 transitions, 32181 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:22,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:22,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:22,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:23,681 INFO L130 PetriNetUnfolder]: 385/3226 cut-off events. [2022-12-06 17:07:23,681 INFO L131 PetriNetUnfolder]: For 42187/52248 co-relation queries the response was YES. [2022-12-06 17:07:23,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25977 conditions, 3226 events. 385/3226 cut-off events. For 42187/52248 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 34425 event pairs, 12 based on Foata normal form. 78/3078 useless extension candidates. Maximal degree in co-relation 12912. Up to 852 conditions per place. [2022-12-06 17:07:23,694 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 573 selfloop transitions, 39 changer transitions 479/1202 dead transitions. [2022-12-06 17:07:23,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 1202 transitions, 35518 flow [2022-12-06 17:07:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2418 transitions. [2022-12-06 17:07:23,697 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7530364372469636 [2022-12-06 17:07:23,697 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 263 predicate places. [2022-12-06 17:07:23,697 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 1202 transitions, 35518 flow [2022-12-06 17:07:23,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:23,698 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:23,698 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:23,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-06 17:07:23,698 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:23,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:23,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1765491471, now seen corresponding path program 16 times [2022-12-06 17:07:23,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:23,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84024849] [2022-12-06 17:07:23,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:23,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:23,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:23,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:23,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84024849] [2022-12-06 17:07:23,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84024849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:23,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:23,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:23,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444879771] [2022-12-06 17:07:23,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:23,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:23,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:23,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:23,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:23,836 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:23,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 1202 transitions, 35518 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:23,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:23,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:23,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:24,646 INFO L130 PetriNetUnfolder]: 389/3367 cut-off events. [2022-12-06 17:07:24,646 INFO L131 PetriNetUnfolder]: For 51883/66489 co-relation queries the response was YES. [2022-12-06 17:07:24,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27961 conditions, 3367 events. 389/3367 cut-off events. For 51883/66489 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 36350 event pairs, 12 based on Foata normal form. 84/3213 useless extension candidates. Maximal degree in co-relation 14341. Up to 869 conditions per place. [2022-12-06 17:07:24,664 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 575 selfloop transitions, 29 changer transitions 507/1222 dead transitions. [2022-12-06 17:07:24,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 1222 transitions, 38389 flow [2022-12-06 17:07:24,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:24,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:24,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2552 transitions. [2022-12-06 17:07:24,668 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7550295857988165 [2022-12-06 17:07:24,668 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 282 predicate places. [2022-12-06 17:07:24,668 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 1222 transitions, 38389 flow [2022-12-06 17:07:24,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:24,670 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:24,670 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:24,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-06 17:07:24,670 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:24,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:24,671 INFO L85 PathProgramCache]: Analyzing trace with hash 732893589, now seen corresponding path program 17 times [2022-12-06 17:07:24,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:24,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385726579] [2022-12-06 17:07:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:24,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:24,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:24,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385726579] [2022-12-06 17:07:24,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385726579] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:24,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:24,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:24,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037418166] [2022-12-06 17:07:24,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:24,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:24,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:24,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:24,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:24,904 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:24,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1222 transitions, 38389 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:24,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:24,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:24,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:25,749 INFO L130 PetriNetUnfolder]: 385/3311 cut-off events. [2022-12-06 17:07:25,749 INFO L131 PetriNetUnfolder]: For 59430/76134 co-relation queries the response was YES. [2022-12-06 17:07:25,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29413 conditions, 3311 events. 385/3311 cut-off events. For 59430/76134 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 35617 event pairs, 14 based on Foata normal form. 132/3210 useless extension candidates. Maximal degree in co-relation 14471. Up to 868 conditions per place. [2022-12-06 17:07:25,766 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 547 selfloop transitions, 31 changer transitions 532/1221 dead transitions. [2022-12-06 17:07:25,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 1221 transitions, 40575 flow [2022-12-06 17:07:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:07:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:07:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2036 transitions. [2022-12-06 17:07:25,768 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7529585798816568 [2022-12-06 17:07:25,769 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 297 predicate places. [2022-12-06 17:07:25,769 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 1221 transitions, 40575 flow [2022-12-06 17:07:25,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:25,769 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:25,769 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:25,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-06 17:07:25,769 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:25,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:25,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1194728373, now seen corresponding path program 18 times [2022-12-06 17:07:25,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:25,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118929638] [2022-12-06 17:07:25,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:25,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:25,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:25,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118929638] [2022-12-06 17:07:25,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118929638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:25,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:25,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:25,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144769626] [2022-12-06 17:07:25,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:25,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:25,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:25,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:25,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:25,919 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:25,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 1221 transitions, 40575 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:25,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:25,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:25,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:26,823 INFO L130 PetriNetUnfolder]: 388/3353 cut-off events. [2022-12-06 17:07:26,824 INFO L131 PetriNetUnfolder]: For 68082/86181 co-relation queries the response was YES. [2022-12-06 17:07:26,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31379 conditions, 3353 events. 388/3353 cut-off events. For 68082/86181 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 36236 event pairs, 10 based on Foata normal form. 93/3211 useless extension candidates. Maximal degree in co-relation 18348. Up to 887 conditions per place. [2022-12-06 17:07:26,840 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 548 selfloop transitions, 22 changer transitions 560/1241 dead transitions. [2022-12-06 17:07:26,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 1241 transitions, 43567 flow [2022-12-06 17:07:26,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:07:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:07:26,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2174 transitions. [2022-12-06 17:07:26,842 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7567003132613992 [2022-12-06 17:07:26,842 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 313 predicate places. [2022-12-06 17:07:26,842 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 1241 transitions, 43567 flow [2022-12-06 17:07:26,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:26,843 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:26,843 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:26,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-06 17:07:26,843 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:26,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash -2025389869, now seen corresponding path program 19 times [2022-12-06 17:07:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:26,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193362361] [2022-12-06 17:07:26,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:26,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:26,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:26,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193362361] [2022-12-06 17:07:26,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193362361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:26,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:26,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:26,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052832313] [2022-12-06 17:07:26,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:26,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:26,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:26,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:26,989 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:26,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 1241 transitions, 43567 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:26,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:26,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:26,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:27,981 INFO L130 PetriNetUnfolder]: 387/3424 cut-off events. [2022-12-06 17:07:27,981 INFO L131 PetriNetUnfolder]: For 74967/92160 co-relation queries the response was YES. [2022-12-06 17:07:27,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33417 conditions, 3424 events. 387/3424 cut-off events. For 74967/92160 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 37327 event pairs, 7 based on Foata normal form. 55/3249 useless extension candidates. Maximal degree in co-relation 16089. Up to 905 conditions per place. [2022-12-06 17:07:27,998 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 539 selfloop transitions, 26 changer transitions 586/1262 dead transitions. [2022-12-06 17:07:27,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 1262 transitions, 46676 flow [2022-12-06 17:07:27,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:27,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:28,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2294 transitions. [2022-12-06 17:07:28,001 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7541091387245233 [2022-12-06 17:07:28,001 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 330 predicate places. [2022-12-06 17:07:28,001 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 1262 transitions, 46676 flow [2022-12-06 17:07:28,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:28,001 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:28,001 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:28,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-06 17:07:28,002 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:28,002 INFO L85 PathProgramCache]: Analyzing trace with hash -923152565, now seen corresponding path program 20 times [2022-12-06 17:07:28,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:28,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343527230] [2022-12-06 17:07:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:28,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:28,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:28,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343527230] [2022-12-06 17:07:28,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343527230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:28,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:28,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:28,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426549762] [2022-12-06 17:07:28,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:28,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:28,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:28,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:28,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:28,166 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 169 [2022-12-06 17:07:28,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 1262 transitions, 46676 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:28,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:28,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 169 [2022-12-06 17:07:28,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:29,213 INFO L130 PetriNetUnfolder]: 389/3414 cut-off events. [2022-12-06 17:07:29,213 INFO L131 PetriNetUnfolder]: For 85072/104699 co-relation queries the response was YES. [2022-12-06 17:07:29,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34955 conditions, 3414 events. 389/3414 cut-off events. For 85072/104699 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 37134 event pairs, 12 based on Foata normal form. 49/3225 useless extension candidates. Maximal degree in co-relation 16784. Up to 904 conditions per place. [2022-12-06 17:07:29,231 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 522 selfloop transitions, 17 changer transitions 611/1261 dead transitions. [2022-12-06 17:07:29,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 1261 transitions, 48936 flow [2022-12-06 17:07:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:07:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:07:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2171 transitions. [2022-12-06 17:07:29,233 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.755656108597285 [2022-12-06 17:07:29,234 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 346 predicate places. [2022-12-06 17:07:29,234 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 1261 transitions, 48936 flow [2022-12-06 17:07:29,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:29,234 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:29,235 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:29,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-06 17:07:29,235 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:29,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:29,235 INFO L85 PathProgramCache]: Analyzing trace with hash -856440821, now seen corresponding path program 1 times [2022-12-06 17:07:29,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:29,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245742038] [2022-12-06 17:07:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:29,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:29,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:29,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:29,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245742038] [2022-12-06 17:07:29,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245742038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:29,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:29,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:29,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676977216] [2022-12-06 17:07:29,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:29,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:29,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:29,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:29,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:29,393 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:29,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 1261 transitions, 48936 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:29,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:29,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:29,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:30,719 INFO L130 PetriNetUnfolder]: 582/4038 cut-off events. [2022-12-06 17:07:30,719 INFO L131 PetriNetUnfolder]: For 142159/170932 co-relation queries the response was YES. [2022-12-06 17:07:30,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41689 conditions, 4038 events. 582/4038 cut-off events. For 142159/170932 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 44606 event pairs, 57 based on Foata normal form. 78/3838 useless extension candidates. Maximal degree in co-relation 22447. Up to 1051 conditions per place. [2022-12-06 17:07:30,736 INFO L137 encePairwiseOnDemand]: 156/169 looper letters, 486 selfloop transitions, 13 changer transitions 664/1301 dead transitions. [2022-12-06 17:07:30,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 1301 transitions, 52448 flow [2022-12-06 17:07:30,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:30,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2580 transitions. [2022-12-06 17:07:30,738 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7633136094674556 [2022-12-06 17:07:30,738 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 365 predicate places. [2022-12-06 17:07:30,738 INFO L495 AbstractCegarLoop]: Abstraction has has 516 places, 1301 transitions, 52448 flow [2022-12-06 17:07:30,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:30,739 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:30,739 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:30,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-06 17:07:30,739 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:30,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:30,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1794982875, now seen corresponding path program 2 times [2022-12-06 17:07:30,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:30,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817202177] [2022-12-06 17:07:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:30,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:30,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:30,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817202177] [2022-12-06 17:07:30,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817202177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:30,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:30,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:30,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232987028] [2022-12-06 17:07:30,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:30,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:30,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:30,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:30,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:30,860 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:30,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 1301 transitions, 52448 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:30,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:30,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:30,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:31,994 INFO L130 PetriNetUnfolder]: 622/4265 cut-off events. [2022-12-06 17:07:31,994 INFO L131 PetriNetUnfolder]: For 158555/187350 co-relation queries the response was YES. [2022-12-06 17:07:32,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47578 conditions, 4265 events. 622/4265 cut-off events. For 158555/187350 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 47660 event pairs, 48 based on Foata normal form. 70/4058 useless extension candidates. Maximal degree in co-relation 23912. Up to 1643 conditions per place. [2022-12-06 17:07:32,014 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 514 selfloop transitions, 59 changer transitions 717/1428 dead transitions. [2022-12-06 17:07:32,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 1428 transitions, 60254 flow [2022-12-06 17:07:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:07:32,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:07:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2074 transitions. [2022-12-06 17:07:32,016 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7670118343195266 [2022-12-06 17:07:32,017 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 380 predicate places. [2022-12-06 17:07:32,017 INFO L495 AbstractCegarLoop]: Abstraction has has 531 places, 1428 transitions, 60254 flow [2022-12-06 17:07:32,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:32,017 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:32,017 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:32,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-06 17:07:32,017 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:32,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:32,018 INFO L85 PathProgramCache]: Analyzing trace with hash 307874413, now seen corresponding path program 3 times [2022-12-06 17:07:32,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:32,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387100183] [2022-12-06 17:07:32,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:32,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:32,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:32,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387100183] [2022-12-06 17:07:32,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387100183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:32,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:32,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:32,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037379541] [2022-12-06 17:07:32,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:32,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:32,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:32,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:32,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:32,137 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:32,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 1428 transitions, 60254 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:32,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:32,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:32,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:33,590 INFO L130 PetriNetUnfolder]: 636/4426 cut-off events. [2022-12-06 17:07:33,590 INFO L131 PetriNetUnfolder]: For 176517/206142 co-relation queries the response was YES. [2022-12-06 17:07:33,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51260 conditions, 4426 events. 636/4426 cut-off events. For 176517/206142 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 50075 event pairs, 39 based on Foata normal form. 50/4196 useless extension candidates. Maximal degree in co-relation 26141. Up to 1868 conditions per place. [2022-12-06 17:07:33,612 INFO L137 encePairwiseOnDemand]: 156/169 looper letters, 571 selfloop transitions, 17 changer transitions 752/1478 dead transitions. [2022-12-06 17:07:33,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 1478 transitions, 65088 flow [2022-12-06 17:07:33,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:33,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:33,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2451 transitions. [2022-12-06 17:07:33,615 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7633136094674556 [2022-12-06 17:07:33,615 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 398 predicate places. [2022-12-06 17:07:33,615 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 1478 transitions, 65088 flow [2022-12-06 17:07:33,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:33,615 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:33,615 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:33,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-06 17:07:33,616 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:33,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2096725907, now seen corresponding path program 4 times [2022-12-06 17:07:33,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:33,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244249283] [2022-12-06 17:07:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:33,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:33,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:33,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:33,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244249283] [2022-12-06 17:07:33,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244249283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:33,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:33,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:33,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114726729] [2022-12-06 17:07:33,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:33,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:33,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:33,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:33,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:33,766 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:33,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 1478 transitions, 65088 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:33,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:33,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:33,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:35,384 INFO L130 PetriNetUnfolder]: 641/4476 cut-off events. [2022-12-06 17:07:35,384 INFO L131 PetriNetUnfolder]: For 199019/237967 co-relation queries the response was YES. [2022-12-06 17:07:35,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54086 conditions, 4476 events. 641/4476 cut-off events. For 199019/237967 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 50723 event pairs, 44 based on Foata normal form. 54/4240 useless extension candidates. Maximal degree in co-relation 28059. Up to 1955 conditions per place. [2022-12-06 17:07:35,404 INFO L137 encePairwiseOnDemand]: 156/169 looper letters, 567 selfloop transitions, 19 changer transitions 778/1502 dead transitions. [2022-12-06 17:07:35,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 1502 transitions, 68893 flow [2022-12-06 17:07:35,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:07:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:07:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2055 transitions. [2022-12-06 17:07:35,406 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7599852071005917 [2022-12-06 17:07:35,406 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 413 predicate places. [2022-12-06 17:07:35,406 INFO L495 AbstractCegarLoop]: Abstraction has has 564 places, 1502 transitions, 68893 flow [2022-12-06 17:07:35,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:35,406 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:35,407 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:35,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-06 17:07:35,407 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:35,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:35,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1929743047, now seen corresponding path program 5 times [2022-12-06 17:07:35,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:35,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082878563] [2022-12-06 17:07:35,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:35,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:35,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:35,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:35,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082878563] [2022-12-06 17:07:35,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082878563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:35,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:35,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:35,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358535786] [2022-12-06 17:07:35,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:35,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:35,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:35,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:35,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:35,567 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:35,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 1502 transitions, 68893 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:35,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:35,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:35,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:36,989 INFO L130 PetriNetUnfolder]: 641/4426 cut-off events. [2022-12-06 17:07:36,989 INFO L131 PetriNetUnfolder]: For 214583/255505 co-relation queries the response was YES. [2022-12-06 17:07:36,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56093 conditions, 4426 events. 641/4426 cut-off events. For 214583/255505 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 49987 event pairs, 41 based on Foata normal form. 49/4193 useless extension candidates. Maximal degree in co-relation 34207. Up to 1949 conditions per place. [2022-12-06 17:07:37,011 INFO L137 encePairwiseOnDemand]: 156/169 looper letters, 546 selfloop transitions, 8 changer transitions 811/1503 dead transitions. [2022-12-06 17:07:37,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 1503 transitions, 71684 flow [2022-12-06 17:07:37,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:37,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2308 transitions. [2022-12-06 17:07:37,013 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7587113740959894 [2022-12-06 17:07:37,013 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 430 predicate places. [2022-12-06 17:07:37,014 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 1503 transitions, 71684 flow [2022-12-06 17:07:37,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:37,014 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:37,014 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:37,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-06 17:07:37,015 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:37,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:37,015 INFO L85 PathProgramCache]: Analyzing trace with hash -769909915, now seen corresponding path program 6 times [2022-12-06 17:07:37,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:37,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590599537] [2022-12-06 17:07:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:37,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:37,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:37,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590599537] [2022-12-06 17:07:37,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590599537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:37,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:37,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:37,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916883371] [2022-12-06 17:07:37,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:37,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:37,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:37,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:37,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:37,151 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:37,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 1503 transitions, 71684 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:37,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:37,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:37,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:38,739 INFO L130 PetriNetUnfolder]: 483/3633 cut-off events. [2022-12-06 17:07:38,739 INFO L131 PetriNetUnfolder]: For 193872/231318 co-relation queries the response was YES. [2022-12-06 17:07:38,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47233 conditions, 3633 events. 483/3633 cut-off events. For 193872/231318 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 39776 event pairs, 22 based on Foata normal form. 299/3735 useless extension candidates. Maximal degree in co-relation 22487. Up to 1518 conditions per place. [2022-12-06 17:07:38,758 INFO L137 encePairwiseOnDemand]: 151/169 looper letters, 380 selfloop transitions, 34 changer transitions 826/1375 dead transitions. [2022-12-06 17:07:38,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 1375 transitions, 67156 flow [2022-12-06 17:07:38,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:38,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2606 transitions. [2022-12-06 17:07:38,760 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7710059171597633 [2022-12-06 17:07:38,760 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 447 predicate places. [2022-12-06 17:07:38,760 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 1375 transitions, 67156 flow [2022-12-06 17:07:38,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:38,761 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:38,761 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:38,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-06 17:07:38,761 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:38,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1986755867, now seen corresponding path program 7 times [2022-12-06 17:07:38,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:38,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349865701] [2022-12-06 17:07:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:38,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:38,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:38,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349865701] [2022-12-06 17:07:38,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349865701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:38,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:38,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:38,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569251677] [2022-12-06 17:07:38,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:38,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:38,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:38,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:38,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:38,888 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:38,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1375 transitions, 67156 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:38,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:38,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:38,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:40,277 INFO L130 PetriNetUnfolder]: 490/3687 cut-off events. [2022-12-06 17:07:40,277 INFO L131 PetriNetUnfolder]: For 183731/209134 co-relation queries the response was YES. [2022-12-06 17:07:40,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49874 conditions, 3687 events. 490/3687 cut-off events. For 183731/209134 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 40554 event pairs, 13 based on Foata normal form. 101/3587 useless extension candidates. Maximal degree in co-relation 23699. Up to 1546 conditions per place. [2022-12-06 17:07:40,294 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 379 selfloop transitions, 30 changer transitions 861/1403 dead transitions. [2022-12-06 17:07:40,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 1403 transitions, 71132 flow [2022-12-06 17:07:40,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:40,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2468 transitions. [2022-12-06 17:07:40,296 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7686079103083152 [2022-12-06 17:07:40,297 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 465 predicate places. [2022-12-06 17:07:40,297 INFO L495 AbstractCegarLoop]: Abstraction has has 616 places, 1403 transitions, 71132 flow [2022-12-06 17:07:40,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:40,297 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:40,297 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:40,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-06 17:07:40,297 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:40,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:40,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1901185989, now seen corresponding path program 8 times [2022-12-06 17:07:40,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:40,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833081599] [2022-12-06 17:07:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:40,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:40,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:40,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:40,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833081599] [2022-12-06 17:07:40,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833081599] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:40,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:40,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:40,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469258470] [2022-12-06 17:07:40,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:40,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:40,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:40,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:40,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:40,397 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:40,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 1403 transitions, 71132 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:40,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:40,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:40,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:41,910 INFO L130 PetriNetUnfolder]: 507/3818 cut-off events. [2022-12-06 17:07:41,911 INFO L131 PetriNetUnfolder]: For 195859/218747 co-relation queries the response was YES. [2022-12-06 17:07:41,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53223 conditions, 3818 events. 507/3818 cut-off events. For 195859/218747 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 42445 event pairs, 15 based on Foata normal form. 54/3676 useless extension candidates. Maximal degree in co-relation 25402. Up to 1586 conditions per place. [2022-12-06 17:07:41,927 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 396 selfloop transitions, 32 changer transitions 890/1451 dead transitions. [2022-12-06 17:07:41,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 633 places, 1451 transitions, 76269 flow [2022-12-06 17:07:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2328 transitions. [2022-12-06 17:07:41,930 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7652859960552268 [2022-12-06 17:07:41,930 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 482 predicate places. [2022-12-06 17:07:41,930 INFO L495 AbstractCegarLoop]: Abstraction has has 633 places, 1451 transitions, 76269 flow [2022-12-06 17:07:41,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:41,930 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:41,930 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:41,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-06 17:07:41,931 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:41,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:41,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1214054703, now seen corresponding path program 9 times [2022-12-06 17:07:41,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:41,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616545773] [2022-12-06 17:07:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:41,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:42,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:42,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:42,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616545773] [2022-12-06 17:07:42,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616545773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:42,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:42,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:42,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101217107] [2022-12-06 17:07:42,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:42,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:42,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:42,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:42,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:42,028 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:42,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 1451 transitions, 76269 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:42,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:42,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:42,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:43,500 INFO L130 PetriNetUnfolder]: 510/3829 cut-off events. [2022-12-06 17:07:43,500 INFO L131 PetriNetUnfolder]: For 217257/247779 co-relation queries the response was YES. [2022-12-06 17:07:43,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55680 conditions, 3829 events. 510/3829 cut-off events. For 217257/247779 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 42504 event pairs, 18 based on Foata normal form. 80/3710 useless extension candidates. Maximal degree in co-relation 26451. Up to 1606 conditions per place. [2022-12-06 17:07:43,521 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 391 selfloop transitions, 32 changer transitions 915/1471 dead transitions. [2022-12-06 17:07:43,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 1471 transitions, 80023 flow [2022-12-06 17:07:43,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:07:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:07:43,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2075 transitions. [2022-12-06 17:07:43,527 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7673816568047337 [2022-12-06 17:07:43,527 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 497 predicate places. [2022-12-06 17:07:43,528 INFO L495 AbstractCegarLoop]: Abstraction has has 648 places, 1471 transitions, 80023 flow [2022-12-06 17:07:43,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:43,528 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:43,528 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:43,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-06 17:07:43,528 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:43,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:43,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1529183435, now seen corresponding path program 10 times [2022-12-06 17:07:43,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:43,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642972555] [2022-12-06 17:07:43,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:43,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:43,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:43,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642972555] [2022-12-06 17:07:43,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642972555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:43,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:43,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:43,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858919982] [2022-12-06 17:07:43,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:43,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:43,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:43,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:43,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:43,650 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:43,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 1471 transitions, 80023 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:43,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:43,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:43,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:45,372 INFO L130 PetriNetUnfolder]: 509/3912 cut-off events. [2022-12-06 17:07:45,372 INFO L131 PetriNetUnfolder]: For 230403/259155 co-relation queries the response was YES. [2022-12-06 17:07:45,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58031 conditions, 3912 events. 509/3912 cut-off events. For 230403/259155 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 43869 event pairs, 18 based on Foata normal form. 52/3762 useless extension candidates. Maximal degree in co-relation 34605. Up to 1617 conditions per place. [2022-12-06 17:07:45,389 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 386 selfloop transitions, 21 changer transitions 945/1484 dead transitions. [2022-12-06 17:07:45,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 1484 transitions, 83497 flow [2022-12-06 17:07:45,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:07:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:07:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2074 transitions. [2022-12-06 17:07:45,391 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7670118343195266 [2022-12-06 17:07:45,391 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 512 predicate places. [2022-12-06 17:07:45,392 INFO L495 AbstractCegarLoop]: Abstraction has has 663 places, 1484 transitions, 83497 flow [2022-12-06 17:07:45,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:45,392 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:45,392 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:45,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-06 17:07:45,392 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:45,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1839634941, now seen corresponding path program 11 times [2022-12-06 17:07:45,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:45,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921506378] [2022-12-06 17:07:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:45,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:45,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:45,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:45,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921506378] [2022-12-06 17:07:45,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921506378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:45,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:45,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:45,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573110693] [2022-12-06 17:07:45,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:45,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:45,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:45,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:45,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:45,507 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:45,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 1484 transitions, 83497 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:45,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:45,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:45,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:47,129 INFO L130 PetriNetUnfolder]: 520/3976 cut-off events. [2022-12-06 17:07:47,129 INFO L131 PetriNetUnfolder]: For 258883/297291 co-relation queries the response was YES. [2022-12-06 17:07:47,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61024 conditions, 3976 events. 520/3976 cut-off events. For 258883/297291 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 44592 event pairs, 20 based on Foata normal form. 272/4038 useless extension candidates. Maximal degree in co-relation 37821. Up to 1642 conditions per place. [2022-12-06 17:07:47,148 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 381 selfloop transitions, 34 changer transitions 971/1518 dead transitions. [2022-12-06 17:07:47,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 680 places, 1518 transitions, 88213 flow [2022-12-06 17:07:47,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2328 transitions. [2022-12-06 17:07:47,150 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7652859960552268 [2022-12-06 17:07:47,150 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 529 predicate places. [2022-12-06 17:07:47,150 INFO L495 AbstractCegarLoop]: Abstraction has has 680 places, 1518 transitions, 88213 flow [2022-12-06 17:07:47,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:47,151 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:47,151 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:47,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-06 17:07:47,151 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:47,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:47,151 INFO L85 PathProgramCache]: Analyzing trace with hash 350074415, now seen corresponding path program 12 times [2022-12-06 17:07:47,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:47,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056338689] [2022-12-06 17:07:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:47,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:47,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:47,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056338689] [2022-12-06 17:07:47,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056338689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:47,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:47,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:47,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126752140] [2022-12-06 17:07:47,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:47,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:47,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:47,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:47,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:47,255 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:47,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 1518 transitions, 88213 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:47,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:47,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:47,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:49,077 INFO L130 PetriNetUnfolder]: 520/4041 cut-off events. [2022-12-06 17:07:49,077 INFO L131 PetriNetUnfolder]: For 261872/287880 co-relation queries the response was YES. [2022-12-06 17:07:49,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63629 conditions, 4041 events. 520/4041 cut-off events. For 261872/287880 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 45726 event pairs, 17 based on Foata normal form. 210/4052 useless extension candidates. Maximal degree in co-relation 30029. Up to 1662 conditions per place. [2022-12-06 17:07:49,095 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 380 selfloop transitions, 25 changer transitions 998/1535 dead transitions. [2022-12-06 17:07:49,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 694 places, 1535 transitions, 92066 flow [2022-12-06 17:07:49,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:07:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:07:49,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1955 transitions. [2022-12-06 17:07:49,097 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7712031558185405 [2022-12-06 17:07:49,097 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 543 predicate places. [2022-12-06 17:07:49,097 INFO L495 AbstractCegarLoop]: Abstraction has has 694 places, 1535 transitions, 92066 flow [2022-12-06 17:07:49,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:49,097 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:49,097 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:49,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-06 17:07:49,098 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:49,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:49,098 INFO L85 PathProgramCache]: Analyzing trace with hash -96448371, now seen corresponding path program 13 times [2022-12-06 17:07:49,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:49,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623166666] [2022-12-06 17:07:49,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:49,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:49,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:49,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623166666] [2022-12-06 17:07:49,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623166666] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:49,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:49,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:49,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391763212] [2022-12-06 17:07:49,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:49,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:49,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:49,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:49,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:49,199 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:49,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 694 places, 1535 transitions, 92066 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:49,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:49,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:49,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:51,121 INFO L130 PetriNetUnfolder]: 525/4030 cut-off events. [2022-12-06 17:07:51,121 INFO L131 PetriNetUnfolder]: For 295500/332207 co-relation queries the response was YES. [2022-12-06 17:07:51,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66396 conditions, 4030 events. 525/4030 cut-off events. For 295500/332207 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 45386 event pairs, 20 based on Foata normal form. 190/4016 useless extension candidates. Maximal degree in co-relation 31206. Up to 1685 conditions per place. [2022-12-06 17:07:51,141 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 380 selfloop transitions, 20 changer transitions 1027/1559 dead transitions. [2022-12-06 17:07:51,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 710 places, 1559 transitions, 96423 flow [2022-12-06 17:07:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:07:51,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:07:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2206 transitions. [2022-12-06 17:07:51,143 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7678384963452837 [2022-12-06 17:07:51,143 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 559 predicate places. [2022-12-06 17:07:51,144 INFO L495 AbstractCegarLoop]: Abstraction has has 710 places, 1559 transitions, 96423 flow [2022-12-06 17:07:51,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:51,144 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:51,144 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:51,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-06 17:07:51,144 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:51,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:51,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2113144417, now seen corresponding path program 14 times [2022-12-06 17:07:51,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:51,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324670955] [2022-12-06 17:07:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:51,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:51,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:51,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:51,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324670955] [2022-12-06 17:07:51,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324670955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:51,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:51,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:51,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363713156] [2022-12-06 17:07:51,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:51,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:51,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:51,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:51,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:51,251 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:51,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 710 places, 1559 transitions, 96423 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:51,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:51,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:51,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:53,205 INFO L130 PetriNetUnfolder]: 528/4147 cut-off events. [2022-12-06 17:07:53,205 INFO L131 PetriNetUnfolder]: For 311514/345050 co-relation queries the response was YES. [2022-12-06 17:07:53,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69186 conditions, 4147 events. 528/4147 cut-off events. For 311514/345050 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 47322 event pairs, 16 based on Foata normal form. 168/4112 useless extension candidates. Maximal degree in co-relation 32439. Up to 1705 conditions per place. [2022-12-06 17:07:53,227 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 374 selfloop transitions, 21 changer transitions 1052/1579 dead transitions. [2022-12-06 17:07:53,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 725 places, 1579 transitions, 100593 flow [2022-12-06 17:07:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:07:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:07:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2080 transitions. [2022-12-06 17:07:53,229 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2022-12-06 17:07:53,230 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 574 predicate places. [2022-12-06 17:07:53,230 INFO L495 AbstractCegarLoop]: Abstraction has has 725 places, 1579 transitions, 100593 flow [2022-12-06 17:07:53,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:53,231 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:53,231 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:53,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-06 17:07:53,231 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:53,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1258516301, now seen corresponding path program 15 times [2022-12-06 17:07:53,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:53,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928055244] [2022-12-06 17:07:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:53,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:53,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:53,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:53,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928055244] [2022-12-06 17:07:53,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928055244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:53,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:53,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:53,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036866627] [2022-12-06 17:07:53,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:53,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:53,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:53,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:53,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:53,348 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:53,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 725 places, 1579 transitions, 100593 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:53,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:53,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:53,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:55,531 INFO L130 PetriNetUnfolder]: 528/4080 cut-off events. [2022-12-06 17:07:55,532 INFO L131 PetriNetUnfolder]: For 333674/369161 co-relation queries the response was YES. [2022-12-06 17:07:55,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70912 conditions, 4080 events. 528/4080 cut-off events. For 333674/369161 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 46321 event pairs, 18 based on Foata normal form. 128/4001 useless extension candidates. Maximal degree in co-relation 42763. Up to 1699 conditions per place. [2022-12-06 17:07:55,552 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 353 selfloop transitions, 9 changer transitions 1084/1573 dead transitions. [2022-12-06 17:07:55,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 741 places, 1573 transitions, 103039 flow [2022-12-06 17:07:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:07:55,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:07:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2203 transitions. [2022-12-06 17:07:55,554 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7667942916811695 [2022-12-06 17:07:55,554 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 590 predicate places. [2022-12-06 17:07:55,554 INFO L495 AbstractCegarLoop]: Abstraction has has 741 places, 1573 transitions, 103039 flow [2022-12-06 17:07:55,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:55,554 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:55,555 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:55,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-06 17:07:55,555 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:55,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:55,555 INFO L85 PathProgramCache]: Analyzing trace with hash -305868255, now seen corresponding path program 1 times [2022-12-06 17:07:55,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:55,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870961438] [2022-12-06 17:07:55,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:55,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:55,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:55,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870961438] [2022-12-06 17:07:55,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870961438] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:55,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:55,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:55,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461688351] [2022-12-06 17:07:55,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:55,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:55,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:55,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:55,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:55,799 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:55,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 741 places, 1573 transitions, 103039 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:55,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:55,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:55,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:57,395 INFO L130 PetriNetUnfolder]: 566/4101 cut-off events. [2022-12-06 17:07:57,395 INFO L131 PetriNetUnfolder]: For 327430/347221 co-relation queries the response was YES. [2022-12-06 17:07:57,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68922 conditions, 4101 events. 566/4101 cut-off events. For 327430/347221 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 46438 event pairs, 72 based on Foata normal form. 68/4000 useless extension candidates. Maximal degree in co-relation 34745. Up to 1609 conditions per place. [2022-12-06 17:07:57,413 INFO L137 encePairwiseOnDemand]: 152/169 looper letters, 156 selfloop transitions, 24 changer transitions 1125/1440 dead transitions. [2022-12-06 17:07:57,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 1440 transitions, 95954 flow [2022-12-06 17:07:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:57,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2465 transitions. [2022-12-06 17:07:57,415 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7676736219246341 [2022-12-06 17:07:57,415 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 607 predicate places. [2022-12-06 17:07:57,416 INFO L495 AbstractCegarLoop]: Abstraction has has 758 places, 1440 transitions, 95954 flow [2022-12-06 17:07:57,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:57,416 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:57,416 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:57,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-06 17:07:57,416 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:57,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:57,416 INFO L85 PathProgramCache]: Analyzing trace with hash -66222347, now seen corresponding path program 2 times [2022-12-06 17:07:57,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:57,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711001485] [2022-12-06 17:07:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:57,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:57,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:57,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711001485] [2022-12-06 17:07:57,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711001485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:57,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:57,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:57,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142587070] [2022-12-06 17:07:57,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:57,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:57,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:57,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:57,519 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:57,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 758 places, 1440 transitions, 95954 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:57,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:57,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:57,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:59,697 INFO L130 PetriNetUnfolder]: 580/4160 cut-off events. [2022-12-06 17:07:59,697 INFO L131 PetriNetUnfolder]: For 338745/359459 co-relation queries the response was YES. [2022-12-06 17:07:59,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72146 conditions, 4160 events. 580/4160 cut-off events. For 338745/359459 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 47257 event pairs, 80 based on Foata normal form. 58/4041 useless extension candidates. Maximal degree in co-relation 46525. Up to 1651 conditions per place. [2022-12-06 17:07:59,715 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 153 selfloop transitions, 31 changer transitions 1151/1470 dead transitions. [2022-12-06 17:07:59,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 771 places, 1470 transitions, 100669 flow [2022-12-06 17:07:59,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 17:07:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 17:07:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1819 transitions. [2022-12-06 17:07:59,716 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7688081149619611 [2022-12-06 17:07:59,717 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 620 predicate places. [2022-12-06 17:07:59,717 INFO L495 AbstractCegarLoop]: Abstraction has has 771 places, 1470 transitions, 100669 flow [2022-12-06 17:07:59,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:59,717 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:59,717 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:59,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-06 17:07:59,717 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:59,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash 50135233, now seen corresponding path program 3 times [2022-12-06 17:07:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:59,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129823211] [2022-12-06 17:07:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:59,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:59,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129823211] [2022-12-06 17:07:59,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129823211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:59,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:59,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:07:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786628249] [2022-12-06 17:07:59,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:59,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:07:59,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:59,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:07:59,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:07:59,833 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:07:59,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 771 places, 1470 transitions, 100669 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:59,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:59,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:07:59,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:01,656 INFO L130 PetriNetUnfolder]: 582/4171 cut-off events. [2022-12-06 17:08:01,656 INFO L131 PetriNetUnfolder]: For 369456/391283 co-relation queries the response was YES. [2022-12-06 17:08:01,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74614 conditions, 4171 events. 582/4171 cut-off events. For 369456/391283 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 47426 event pairs, 83 based on Foata normal form. 60/4061 useless extension candidates. Maximal degree in co-relation 43896. Up to 1666 conditions per place. [2022-12-06 17:08:01,677 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 150 selfloop transitions, 17 changer transitions 1186/1486 dead transitions. [2022-12-06 17:08:01,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 787 places, 1486 transitions, 104205 flow [2022-12-06 17:08:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:08:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:08:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2195 transitions. [2022-12-06 17:08:01,680 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7640097459101984 [2022-12-06 17:08:01,680 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 636 predicate places. [2022-12-06 17:08:01,680 INFO L495 AbstractCegarLoop]: Abstraction has has 787 places, 1486 transitions, 104205 flow [2022-12-06 17:08:01,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:01,680 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:01,681 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:01,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-06 17:08:01,681 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:01,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:01,681 INFO L85 PathProgramCache]: Analyzing trace with hash -479255989, now seen corresponding path program 4 times [2022-12-06 17:08:01,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:01,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918524006] [2022-12-06 17:08:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:01,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:01,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:01,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918524006] [2022-12-06 17:08:01,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918524006] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:01,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:01,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:01,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689839877] [2022-12-06 17:08:01,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:01,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:01,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:01,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:01,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:01,780 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:01,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 787 places, 1486 transitions, 104205 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:01,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:01,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:01,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:03,910 INFO L130 PetriNetUnfolder]: 610/4379 cut-off events. [2022-12-06 17:08:03,910 INFO L131 PetriNetUnfolder]: For 404946/429959 co-relation queries the response was YES. [2022-12-06 17:08:03,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79883 conditions, 4379 events. 610/4379 cut-off events. For 404946/429959 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 50268 event pairs, 92 based on Foata normal form. 76/4272 useless extension candidates. Maximal degree in co-relation 51860. Up to 1755 conditions per place. [2022-12-06 17:08:03,931 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 183 selfloop transitions, 23 changer transitions 1213/1552 dead transitions. [2022-12-06 17:08:03,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 804 places, 1552 transitions, 111534 flow [2022-12-06 17:08:03,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:08:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:08:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2335 transitions. [2022-12-06 17:08:03,933 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7675871137409599 [2022-12-06 17:08:03,933 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 653 predicate places. [2022-12-06 17:08:03,933 INFO L495 AbstractCegarLoop]: Abstraction has has 804 places, 1552 transitions, 111534 flow [2022-12-06 17:08:03,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:03,933 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:03,933 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:03,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-06 17:08:03,934 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:03,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1710619455, now seen corresponding path program 5 times [2022-12-06 17:08:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:03,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706221408] [2022-12-06 17:08:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:04,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:04,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706221408] [2022-12-06 17:08:04,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706221408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:04,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:04,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:04,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640999713] [2022-12-06 17:08:04,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:04,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:04,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:04,033 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:04,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 804 places, 1552 transitions, 111534 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:04,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:04,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:04,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:06,359 INFO L130 PetriNetUnfolder]: 626/4431 cut-off events. [2022-12-06 17:08:06,359 INFO L131 PetriNetUnfolder]: For 444679/470960 co-relation queries the response was YES. [2022-12-06 17:08:06,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83567 conditions, 4431 events. 626/4431 cut-off events. For 444679/470960 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 50959 event pairs, 87 based on Foata normal form. 56/4308 useless extension candidates. Maximal degree in co-relation 43286. Up to 1800 conditions per place. [2022-12-06 17:08:06,380 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 196 selfloop transitions, 26 changer transitions 1234/1589 dead transitions. [2022-12-06 17:08:06,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 819 places, 1589 transitions, 116947 flow [2022-12-06 17:08:06,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:08:06,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:08:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2071 transitions. [2022-12-06 17:08:06,382 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7659023668639053 [2022-12-06 17:08:06,382 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 668 predicate places. [2022-12-06 17:08:06,395 INFO L495 AbstractCegarLoop]: Abstraction has has 819 places, 1589 transitions, 116947 flow [2022-12-06 17:08:06,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:06,396 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:06,396 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:06,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-06 17:08:06,396 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:06,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:06,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1424404953, now seen corresponding path program 6 times [2022-12-06 17:08:06,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:06,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772344477] [2022-12-06 17:08:06,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:06,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:06,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:06,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772344477] [2022-12-06 17:08:06,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772344477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:06,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:06,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620755628] [2022-12-06 17:08:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:06,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:06,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:06,539 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:06,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 819 places, 1589 transitions, 116947 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:06,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:06,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:06,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:08,987 INFO L130 PetriNetUnfolder]: 632/4520 cut-off events. [2022-12-06 17:08:08,988 INFO L131 PetriNetUnfolder]: For 459612/483235 co-relation queries the response was YES. [2022-12-06 17:08:08,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86367 conditions, 4520 events. 632/4520 cut-off events. For 459612/483235 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 52336 event pairs, 74 based on Foata normal form. 50/4389 useless extension candidates. Maximal degree in co-relation 44749. Up to 1817 conditions per place. [2022-12-06 17:08:09,008 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 191 selfloop transitions, 27 changer transitions 1252/1603 dead transitions. [2022-12-06 17:08:09,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 833 places, 1603 transitions, 120786 flow [2022-12-06 17:08:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:08:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:08:09,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1946 transitions. [2022-12-06 17:08:09,010 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7676528599605522 [2022-12-06 17:08:09,010 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 682 predicate places. [2022-12-06 17:08:09,010 INFO L495 AbstractCegarLoop]: Abstraction has has 833 places, 1603 transitions, 120786 flow [2022-12-06 17:08:09,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:09,010 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:09,010 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:09,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-06 17:08:09,011 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:09,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:09,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1060059391, now seen corresponding path program 7 times [2022-12-06 17:08:09,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:09,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072454517] [2022-12-06 17:08:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:09,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:09,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:09,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072454517] [2022-12-06 17:08:09,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072454517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:09,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:09,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:09,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162623916] [2022-12-06 17:08:09,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:09,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:09,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:09,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:09,120 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:09,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 833 places, 1603 transitions, 120786 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:09,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:09,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:09,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:11,566 INFO L130 PetriNetUnfolder]: 635/4588 cut-off events. [2022-12-06 17:08:11,566 INFO L131 PetriNetUnfolder]: For 486820/511434 co-relation queries the response was YES. [2022-12-06 17:08:11,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89081 conditions, 4588 events. 635/4588 cut-off events. For 486820/511434 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 53309 event pairs, 89 based on Foata normal form. 52/4452 useless extension candidates. Maximal degree in co-relation 51130. Up to 1836 conditions per place. [2022-12-06 17:08:11,587 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 188 selfloop transitions, 15 changer transitions 1277/1613 dead transitions. [2022-12-06 17:08:11,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 1613 transitions, 124480 flow [2022-12-06 17:08:11,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 17:08:11,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 17:08:11,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2073 transitions. [2022-12-06 17:08:11,588 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7666420118343196 [2022-12-06 17:08:11,589 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 697 predicate places. [2022-12-06 17:08:11,589 INFO L495 AbstractCegarLoop]: Abstraction has has 848 places, 1613 transitions, 124480 flow [2022-12-06 17:08:11,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:11,589 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:11,589 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:11,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-06 17:08:11,589 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:11,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash -242815053, now seen corresponding path program 8 times [2022-12-06 17:08:11,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:11,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498313701] [2022-12-06 17:08:11,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:11,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:11,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:11,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:11,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498313701] [2022-12-06 17:08:11,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498313701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:11,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:11,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:11,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062597780] [2022-12-06 17:08:11,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:11,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:11,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:11,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:11,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:11,704 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:11,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 848 places, 1613 transitions, 124480 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:11,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:11,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:11,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:14,219 INFO L130 PetriNetUnfolder]: 642/4635 cut-off events. [2022-12-06 17:08:14,219 INFO L131 PetriNetUnfolder]: For 514303/538860 co-relation queries the response was YES. [2022-12-06 17:08:14,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92052 conditions, 4635 events. 642/4635 cut-off events. For 514303/538860 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 54033 event pairs, 81 based on Foata normal form. 60/4511 useless extension candidates. Maximal degree in co-relation 47571. Up to 1855 conditions per place. [2022-12-06 17:08:14,240 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 177 selfloop transitions, 22 changer transitions 1298/1630 dead transitions. [2022-12-06 17:08:14,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 864 places, 1630 transitions, 128687 flow [2022-12-06 17:08:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:08:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:08:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2196 transitions. [2022-12-06 17:08:14,242 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7643578141315698 [2022-12-06 17:08:14,242 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 713 predicate places. [2022-12-06 17:08:14,243 INFO L495 AbstractCegarLoop]: Abstraction has has 864 places, 1630 transitions, 128687 flow [2022-12-06 17:08:14,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:14,243 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:14,243 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:14,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-06 17:08:14,243 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:14,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:14,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1619442655, now seen corresponding path program 9 times [2022-12-06 17:08:14,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:14,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670287639] [2022-12-06 17:08:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:14,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:14,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:14,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670287639] [2022-12-06 17:08:14,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670287639] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:14,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:14,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:14,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197061091] [2022-12-06 17:08:14,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:14,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:14,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:14,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:14,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:14,350 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:14,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 864 places, 1630 transitions, 128687 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:14,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:14,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:14,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:16,814 INFO L130 PetriNetUnfolder]: 647/4671 cut-off events. [2022-12-06 17:08:16,814 INFO L131 PetriNetUnfolder]: For 546136/572201 co-relation queries the response was YES. [2022-12-06 17:08:16,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94893 conditions, 4671 events. 647/4671 cut-off events. For 546136/572201 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 54513 event pairs, 86 based on Foata normal form. 62/4544 useless extension candidates. Maximal degree in co-relation 48998. Up to 1875 conditions per place. [2022-12-06 17:08:16,837 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 173 selfloop transitions, 22 changer transitions 1316/1644 dead transitions. [2022-12-06 17:08:16,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 878 places, 1644 transitions, 132692 flow [2022-12-06 17:08:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:08:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:08:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1945 transitions. [2022-12-06 17:08:16,839 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7672583826429981 [2022-12-06 17:08:16,839 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 727 predicate places. [2022-12-06 17:08:16,839 INFO L495 AbstractCegarLoop]: Abstraction has has 878 places, 1644 transitions, 132692 flow [2022-12-06 17:08:16,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:16,840 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:16,840 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:16,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-06 17:08:16,840 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:16,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2019045887, now seen corresponding path program 10 times [2022-12-06 17:08:16,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:16,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532609936] [2022-12-06 17:08:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:16,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:16,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:16,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532609936] [2022-12-06 17:08:16,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532609936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:16,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:16,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:16,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896446667] [2022-12-06 17:08:16,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:16,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:16,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:16,952 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:16,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 1644 transitions, 132692 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:16,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:16,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:16,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:19,818 INFO L130 PetriNetUnfolder]: 641/4628 cut-off events. [2022-12-06 17:08:19,818 INFO L131 PetriNetUnfolder]: For 593746/624120 co-relation queries the response was YES. [2022-12-06 17:08:19,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96376 conditions, 4628 events. 641/4628 cut-off events. For 593746/624120 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 54077 event pairs, 95 based on Foata normal form. 57/4507 useless extension candidates. Maximal degree in co-relation 50033. Up to 1864 conditions per place. [2022-12-06 17:08:19,841 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 152 selfloop transitions, 8 changer transitions 1346/1633 dead transitions. [2022-12-06 17:08:19,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 892 places, 1633 transitions, 134584 flow [2022-12-06 17:08:19,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:08:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:08:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1947 transitions. [2022-12-06 17:08:19,842 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7680473372781065 [2022-12-06 17:08:19,842 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 741 predicate places. [2022-12-06 17:08:19,842 INFO L495 AbstractCegarLoop]: Abstraction has has 892 places, 1633 transitions, 134584 flow [2022-12-06 17:08:19,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:19,843 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:19,843 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:19,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-06 17:08:19,843 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:19,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:19,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1085986349, now seen corresponding path program 11 times [2022-12-06 17:08:19,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:19,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377797903] [2022-12-06 17:08:19,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:19,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:19,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:19,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:19,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377797903] [2022-12-06 17:08:19,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377797903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:19,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:19,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:19,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953218394] [2022-12-06 17:08:19,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:19,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:19,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:19,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:19,947 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:19,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 892 places, 1633 transitions, 134584 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:19,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:19,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:19,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:22,597 INFO L130 PetriNetUnfolder]: 730/5049 cut-off events. [2022-12-06 17:08:22,597 INFO L131 PetriNetUnfolder]: For 683321/721189 co-relation queries the response was YES. [2022-12-06 17:08:22,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109129 conditions, 5049 events. 730/5049 cut-off events. For 683321/721189 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 59670 event pairs, 68 based on Foata normal form. 238/5085 useless extension candidates. Maximal degree in co-relation 70189. Up to 2046 conditions per place. [2022-12-06 17:08:22,621 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 134 selfloop transitions, 13 changer transitions 1544/1817 dead transitions. [2022-12-06 17:08:22,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 910 places, 1817 transitions, 153811 flow [2022-12-06 17:08:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:08:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:08:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2466 transitions. [2022-12-06 17:08:22,622 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7679850513858612 [2022-12-06 17:08:22,623 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 759 predicate places. [2022-12-06 17:08:22,623 INFO L495 AbstractCegarLoop]: Abstraction has has 910 places, 1817 transitions, 153811 flow [2022-12-06 17:08:22,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:22,623 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:22,623 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:22,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-06 17:08:22,623 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:22,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:22,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1253972629, now seen corresponding path program 12 times [2022-12-06 17:08:22,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:22,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153556475] [2022-12-06 17:08:22,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:22,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:22,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:22,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153556475] [2022-12-06 17:08:22,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153556475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:22,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:22,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:22,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688867569] [2022-12-06 17:08:22,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:22,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:22,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:22,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:22,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:22,729 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:22,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 910 places, 1817 transitions, 153811 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:22,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:22,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:22,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:25,866 INFO L130 PetriNetUnfolder]: 732/5068 cut-off events. [2022-12-06 17:08:25,866 INFO L131 PetriNetUnfolder]: For 660690/685974 co-relation queries the response was YES. [2022-12-06 17:08:25,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112425 conditions, 5068 events. 732/5068 cut-off events. For 660690/685974 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 60116 event pairs, 50 based on Foata normal form. 96/4977 useless extension candidates. Maximal degree in co-relation 59283. Up to 2059 conditions per place. [2022-12-06 17:08:25,889 INFO L137 encePairwiseOnDemand]: 157/169 looper letters, 131 selfloop transitions, 12 changer transitions 1570/1838 dead transitions. [2022-12-06 17:08:25,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 927 places, 1838 transitions, 158876 flow [2022-12-06 17:08:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:08:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:08:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2321 transitions. [2022-12-06 17:08:25,891 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7629848783694938 [2022-12-06 17:08:25,891 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 776 predicate places. [2022-12-06 17:08:25,891 INFO L495 AbstractCegarLoop]: Abstraction has has 927 places, 1838 transitions, 158876 flow [2022-12-06 17:08:25,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:25,892 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:25,892 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:25,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-06 17:08:25,892 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:25,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:25,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1414731699, now seen corresponding path program 13 times [2022-12-06 17:08:25,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:25,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078872087] [2022-12-06 17:08:25,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:25,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:25,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:25,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078872087] [2022-12-06 17:08:25,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078872087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:25,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:25,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:25,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804545970] [2022-12-06 17:08:25,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:25,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:25,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:25,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:25,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:25,991 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:25,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 1838 transitions, 158876 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:25,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:25,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:25,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:29,074 INFO L130 PetriNetUnfolder]: 735/5130 cut-off events. [2022-12-06 17:08:29,075 INFO L131 PetriNetUnfolder]: For 688554/713423 co-relation queries the response was YES. [2022-12-06 17:08:29,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115776 conditions, 5130 events. 735/5130 cut-off events. For 688554/713423 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 61131 event pairs, 51 based on Foata normal form. 150/5098 useless extension candidates. Maximal degree in co-relation 61107. Up to 2079 conditions per place. [2022-12-06 17:08:29,101 INFO L137 encePairwiseOnDemand]: 153/169 looper letters, 126 selfloop transitions, 13 changer transitions 1592/1855 dead transitions. [2022-12-06 17:08:29,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 943 places, 1855 transitions, 163703 flow [2022-12-06 17:08:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 17:08:29,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 17:08:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2196 transitions. [2022-12-06 17:08:29,102 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7643578141315698 [2022-12-06 17:08:29,103 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 792 predicate places. [2022-12-06 17:08:29,103 INFO L495 AbstractCegarLoop]: Abstraction has has 943 places, 1855 transitions, 163703 flow [2022-12-06 17:08:29,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:29,103 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:29,103 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:29,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-06 17:08:29,103 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:29,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:29,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1047893391, now seen corresponding path program 14 times [2022-12-06 17:08:29,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:29,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209351451] [2022-12-06 17:08:29,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:29,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:29,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:29,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209351451] [2022-12-06 17:08:29,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209351451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:29,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:29,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:29,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019549062] [2022-12-06 17:08:29,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:29,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:29,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:29,340 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:29,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 943 places, 1855 transitions, 163703 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:29,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:29,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:29,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:32,367 INFO L130 PetriNetUnfolder]: 742/5184 cut-off events. [2022-12-06 17:08:32,367 INFO L131 PetriNetUnfolder]: For 727444/753036 co-relation queries the response was YES. [2022-12-06 17:08:32,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119056 conditions, 5184 events. 742/5184 cut-off events. For 727444/753036 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 62001 event pairs, 50 based on Foata normal form. 86/5087 useless extension candidates. Maximal degree in co-relation 62834. Up to 2100 conditions per place. [2022-12-06 17:08:32,393 INFO L137 encePairwiseOnDemand]: 157/169 looper letters, 121 selfloop transitions, 11 changer transitions 1613/1869 dead transitions. [2022-12-06 17:08:32,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 1869 transitions, 168298 flow [2022-12-06 17:08:32,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:08:32,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:08:32,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1927 transitions. [2022-12-06 17:08:32,395 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7601577909270217 [2022-12-06 17:08:32,395 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 806 predicate places. [2022-12-06 17:08:32,395 INFO L495 AbstractCegarLoop]: Abstraction has has 957 places, 1869 transitions, 168298 flow [2022-12-06 17:08:32,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:32,396 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:32,396 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:32,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-06 17:08:32,396 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:32,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:32,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1754533075, now seen corresponding path program 15 times [2022-12-06 17:08:32,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:32,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264441157] [2022-12-06 17:08:32,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:32,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:32,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:32,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264441157] [2022-12-06 17:08:32,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264441157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:32,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:32,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:08:32,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759487516] [2022-12-06 17:08:32,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:32,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:08:32,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:32,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:08:32,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:08:32,516 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-12-06 17:08:32,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 1869 transitions, 168298 flow. Second operand has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:32,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:32,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-12-06 17:08:32,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:35,864 INFO L130 PetriNetUnfolder]: 739/5188 cut-off events. [2022-12-06 17:08:35,864 INFO L131 PetriNetUnfolder]: For 763730/791371 co-relation queries the response was YES. [2022-12-06 17:08:35,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120855 conditions, 5188 events. 739/5188 cut-off events. For 763730/791371 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 62166 event pairs, 47 based on Foata normal form. 86/5094 useless extension candidates. Maximal degree in co-relation 64126. Up to 2086 conditions per place. [2022-12-06 17:08:35,892 INFO L137 encePairwiseOnDemand]: 157/169 looper letters, 102 selfloop transitions, 0 changer transitions 1635/1858 dead transitions. [2022-12-06 17:08:35,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 971 places, 1858 transitions, 170530 flow [2022-12-06 17:08:35,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:08:35,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:08:35,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1926 transitions. [2022-12-06 17:08:35,893 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7597633136094675 [2022-12-06 17:08:35,893 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 820 predicate places. [2022-12-06 17:08:35,893 INFO L495 AbstractCegarLoop]: Abstraction has has 971 places, 1858 transitions, 170530 flow [2022-12-06 17:08:35,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.9) internal successors, (1259), 10 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:35,894 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:35,894 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:35,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-06 17:08:35,894 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:35,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1541665941, now seen corresponding path program 1 times [2022-12-06 17:08:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:35,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180697166] [2022-12-06 17:08:35,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:35,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:36,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:36,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180697166] [2022-12-06 17:08:36,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180697166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:36,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:36,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:08:36,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496211534] [2022-12-06 17:08:36,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:36,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:08:36,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:36,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:08:36,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:08:36,239 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:08:36,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 971 places, 1858 transitions, 170530 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:36,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:36,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:08:36,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:42,440 INFO L130 PetriNetUnfolder]: 1894/8416 cut-off events. [2022-12-06 17:08:42,440 INFO L131 PetriNetUnfolder]: For 1374733/1403318 co-relation queries the response was YES. [2022-12-06 17:08:42,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179196 conditions, 8416 events. 1894/8416 cut-off events. For 1374733/1403318 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 100264 event pairs, 512 based on Foata normal form. 55/8142 useless extension candidates. Maximal degree in co-relation 117605. Up to 3956 conditions per place. [2022-12-06 17:08:42,494 INFO L137 encePairwiseOnDemand]: 144/169 looper letters, 314 selfloop transitions, 28 changer transitions 1702/2155 dead transitions. [2022-12-06 17:08:42,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1004 places, 2155 transitions, 199396 flow [2022-12-06 17:08:42,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-06 17:08:42,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-06 17:08:42,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3891 transitions. [2022-12-06 17:08:42,496 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6771667246780368 [2022-12-06 17:08:42,496 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 853 predicate places. [2022-12-06 17:08:42,496 INFO L495 AbstractCegarLoop]: Abstraction has has 1004 places, 2155 transitions, 199396 flow [2022-12-06 17:08:42,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:42,497 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:42,497 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:42,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-06 17:08:42,497 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:42,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:42,497 INFO L85 PathProgramCache]: Analyzing trace with hash -2037336513, now seen corresponding path program 2 times [2022-12-06 17:08:42,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:42,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204651323] [2022-12-06 17:08:42,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:42,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:42,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:42,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204651323] [2022-12-06 17:08:42,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204651323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:42,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:42,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:08:42,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531828079] [2022-12-06 17:08:42,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:42,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:08:42,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:42,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:08:42,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:08:42,817 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:08:42,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1004 places, 2155 transitions, 199396 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:42,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:42,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:08:42,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:51,604 INFO L130 PetriNetUnfolder]: 2429/9978 cut-off events. [2022-12-06 17:08:51,604 INFO L131 PetriNetUnfolder]: For 1708586/1744516 co-relation queries the response was YES. [2022-12-06 17:08:51,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228046 conditions, 9978 events. 2429/9978 cut-off events. For 1708586/1744516 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 114237 event pairs, 556 based on Foata normal form. 68/9655 useless extension candidates. Maximal degree in co-relation 143163. Up to 4678 conditions per place. [2022-12-06 17:08:51,677 INFO L137 encePairwiseOnDemand]: 144/169 looper letters, 668 selfloop transitions, 53 changer transitions 1782/2614 dead transitions. [2022-12-06 17:08:51,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1035 places, 2614 transitions, 244556 flow [2022-12-06 17:08:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-06 17:08:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-06 17:08:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3671 transitions. [2022-12-06 17:08:51,679 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6788091715976331 [2022-12-06 17:08:51,680 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 884 predicate places. [2022-12-06 17:08:51,680 INFO L495 AbstractCegarLoop]: Abstraction has has 1035 places, 2614 transitions, 244556 flow [2022-12-06 17:08:51,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:51,680 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:51,680 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:51,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-06 17:08:51,680 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:51,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:51,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1814255963, now seen corresponding path program 3 times [2022-12-06 17:08:51,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:51,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692586180] [2022-12-06 17:08:51,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:51,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:51,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:51,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692586180] [2022-12-06 17:08:51,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692586180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:51,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:51,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:08:51,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096296827] [2022-12-06 17:08:51,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:51,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:08:51,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:51,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:08:51,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:08:51,917 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:08:51,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1035 places, 2614 transitions, 244556 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:51,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:51,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:08:51,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:03,794 INFO L130 PetriNetUnfolder]: 2469/10288 cut-off events. [2022-12-06 17:09:03,795 INFO L131 PetriNetUnfolder]: For 1824706/1864628 co-relation queries the response was YES. [2022-12-06 17:09:03,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242319 conditions, 10288 events. 2469/10288 cut-off events. For 1824706/1864628 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 118609 event pairs, 548 based on Foata normal form. 169/10072 useless extension candidates. Maximal degree in co-relation 150304. Up to 4691 conditions per place. [2022-12-06 17:09:04,012 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 739 selfloop transitions, 121 changer transitions 1912/2883 dead transitions. [2022-12-06 17:09:04,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1082 places, 2883 transitions, 269758 flow [2022-12-06 17:09:04,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-06 17:09:04,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-06 17:09:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 5459 transitions. [2022-12-06 17:09:04,015 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6729536489151874 [2022-12-06 17:09:04,016 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 931 predicate places. [2022-12-06 17:09:04,016 INFO L495 AbstractCegarLoop]: Abstraction has has 1082 places, 2883 transitions, 269758 flow [2022-12-06 17:09:04,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:04,016 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:04,016 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:04,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-06 17:09:04,016 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash 675905247, now seen corresponding path program 4 times [2022-12-06 17:09:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:04,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981942301] [2022-12-06 17:09:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:04,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981942301] [2022-12-06 17:09:04,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981942301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:04,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:04,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:09:04,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680006724] [2022-12-06 17:09:04,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:04,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:09:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:04,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:09:04,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:09:04,229 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:09:04,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1082 places, 2883 transitions, 269758 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:04,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:04,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:09:04,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:17,195 INFO L130 PetriNetUnfolder]: 2532/10631 cut-off events. [2022-12-06 17:09:17,195 INFO L131 PetriNetUnfolder]: For 1900502/1940594 co-relation queries the response was YES. [2022-12-06 17:09:17,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256229 conditions, 10631 events. 2532/10631 cut-off events. For 1900502/1940594 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 123531 event pairs, 541 based on Foata normal form. 148/10383 useless extension candidates. Maximal degree in co-relation 190227. Up to 4691 conditions per place. [2022-12-06 17:09:17,275 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 815 selfloop transitions, 111 changer transitions 2001/3038 dead transitions. [2022-12-06 17:09:17,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1126 places, 3038 transitions, 287952 flow [2022-12-06 17:09:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-06 17:09:17,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-12-06 17:09:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 5119 transitions. [2022-12-06 17:09:17,278 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6731097961867193 [2022-12-06 17:09:17,278 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 975 predicate places. [2022-12-06 17:09:17,278 INFO L495 AbstractCegarLoop]: Abstraction has has 1126 places, 3038 transitions, 287952 flow [2022-12-06 17:09:17,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:17,279 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:17,279 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:17,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-06 17:09:17,279 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:17,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1993469371, now seen corresponding path program 5 times [2022-12-06 17:09:17,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:17,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834362774] [2022-12-06 17:09:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:17,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:17,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:17,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834362774] [2022-12-06 17:09:17,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834362774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:17,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:17,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:09:17,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403736126] [2022-12-06 17:09:17,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:17,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:09:17,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:17,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:09:17,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:09:17,514 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:09:17,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1126 places, 3038 transitions, 287952 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:17,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:17,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:09:17,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:31,645 INFO L130 PetriNetUnfolder]: 2553/10699 cut-off events. [2022-12-06 17:09:31,645 INFO L131 PetriNetUnfolder]: For 1959642/2004629 co-relation queries the response was YES. [2022-12-06 17:09:31,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265415 conditions, 10699 events. 2553/10699 cut-off events. For 1959642/2004629 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 124487 event pairs, 551 based on Foata normal form. 149/10439 useless extension candidates. Maximal degree in co-relation 165512. Up to 4695 conditions per place. [2022-12-06 17:09:31,730 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 802 selfloop transitions, 114 changer transitions 2060/3087 dead transitions. [2022-12-06 17:09:31,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1151 places, 3087 transitions, 298028 flow [2022-12-06 17:09:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 17:09:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 17:09:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3000 transitions. [2022-12-06 17:09:31,732 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6827492034592626 [2022-12-06 17:09:31,732 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1000 predicate places. [2022-12-06 17:09:31,732 INFO L495 AbstractCegarLoop]: Abstraction has has 1151 places, 3087 transitions, 298028 flow [2022-12-06 17:09:31,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:31,732 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:31,732 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:31,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-06 17:09:31,733 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:31,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:31,733 INFO L85 PathProgramCache]: Analyzing trace with hash 130538533, now seen corresponding path program 6 times [2022-12-06 17:09:31,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:31,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626628136] [2022-12-06 17:09:31,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:31,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:32,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:32,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626628136] [2022-12-06 17:09:32,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626628136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:32,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:32,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:09:32,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182090110] [2022-12-06 17:09:32,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:32,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:09:32,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:32,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:09:32,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:09:32,066 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:09:32,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1151 places, 3087 transitions, 298028 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:32,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:32,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:09:32,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:47,343 INFO L130 PetriNetUnfolder]: 2577/10775 cut-off events. [2022-12-06 17:09:47,343 INFO L131 PetriNetUnfolder]: For 2045525/2098560 co-relation queries the response was YES. [2022-12-06 17:09:47,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275550 conditions, 10775 events. 2577/10775 cut-off events. For 2045525/2098560 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 125543 event pairs, 534 based on Foata normal form. 165/10529 useless extension candidates. Maximal degree in co-relation 172338. Up to 4695 conditions per place. [2022-12-06 17:09:47,429 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 799 selfloop transitions, 108 changer transitions 2137/3155 dead transitions. [2022-12-06 17:09:47,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1191 places, 3155 transitions, 309965 flow [2022-12-06 17:09:47,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-06 17:09:47,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-06 17:09:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 4661 transitions. [2022-12-06 17:09:47,431 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6726800404098715 [2022-12-06 17:09:47,431 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1040 predicate places. [2022-12-06 17:09:47,431 INFO L495 AbstractCegarLoop]: Abstraction has has 1191 places, 3155 transitions, 309965 flow [2022-12-06 17:09:47,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:47,432 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:47,432 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:47,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-06 17:09:47,432 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:47,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash -470536483, now seen corresponding path program 7 times [2022-12-06 17:09:47,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:47,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781067355] [2022-12-06 17:09:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:47,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:47,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:47,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781067355] [2022-12-06 17:09:47,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781067355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:47,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:47,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:09:47,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382824439] [2022-12-06 17:09:47,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:47,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:09:47,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:47,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:09:47,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:09:47,668 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:09:47,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1191 places, 3155 transitions, 309965 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:47,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:47,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:09:47,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:03,563 INFO L130 PetriNetUnfolder]: 2589/10978 cut-off events. [2022-12-06 17:10:03,563 INFO L131 PetriNetUnfolder]: For 2113647/2164393 co-relation queries the response was YES. [2022-12-06 17:10:03,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285312 conditions, 10978 events. 2589/10978 cut-off events. For 2113647/2164393 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 128624 event pairs, 546 based on Foata normal form. 131/10710 useless extension candidates. Maximal degree in co-relation 178778. Up to 4691 conditions per place. [2022-12-06 17:10:03,651 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 796 selfloop transitions, 107 changer transitions 2202/3216 dead transitions. [2022-12-06 17:10:03,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1219 places, 3216 transitions, 321362 flow [2022-12-06 17:10:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:10:03,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:10:03,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3331 transitions. [2022-12-06 17:10:03,653 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6796572128137115 [2022-12-06 17:10:03,654 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1068 predicate places. [2022-12-06 17:10:03,654 INFO L495 AbstractCegarLoop]: Abstraction has has 1219 places, 3216 transitions, 321362 flow [2022-12-06 17:10:03,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:03,654 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:03,654 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:03,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-06 17:10:03,654 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash -279137501, now seen corresponding path program 8 times [2022-12-06 17:10:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:03,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460663337] [2022-12-06 17:10:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:03,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:04,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:04,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460663337] [2022-12-06 17:10:04,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460663337] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:04,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:04,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:10:04,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331599411] [2022-12-06 17:10:04,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:04,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:10:04,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:10:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:10:04,032 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:10:04,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1219 places, 3216 transitions, 321362 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:04,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:04,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:10:04,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:20,544 INFO L130 PetriNetUnfolder]: 2589/10969 cut-off events. [2022-12-06 17:10:20,544 INFO L131 PetriNetUnfolder]: For 2163117/2217944 co-relation queries the response was YES. [2022-12-06 17:10:20,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292250 conditions, 10969 events. 2589/10969 cut-off events. For 2163117/2217944 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 128532 event pairs, 538 based on Foata normal form. 135/10709 useless extension candidates. Maximal degree in co-relation 183821. Up to 4691 conditions per place. [2022-12-06 17:10:20,632 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 759 selfloop transitions, 80 changer transitions 2276/3226 dead transitions. [2022-12-06 17:10:20,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1253 places, 3226 transitions, 327817 flow [2022-12-06 17:10:20,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-06 17:10:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-06 17:10:20,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3996 transitions. [2022-12-06 17:10:20,634 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.675570583262891 [2022-12-06 17:10:20,634 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1102 predicate places. [2022-12-06 17:10:20,635 INFO L495 AbstractCegarLoop]: Abstraction has has 1253 places, 3226 transitions, 327817 flow [2022-12-06 17:10:20,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:20,635 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:20,635 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:20,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-06 17:10:20,635 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:20,635 INFO L85 PathProgramCache]: Analyzing trace with hash -185976201, now seen corresponding path program 9 times [2022-12-06 17:10:20,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:20,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224718656] [2022-12-06 17:10:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:20,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:20,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:20,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224718656] [2022-12-06 17:10:20,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224718656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:20,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:20,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:10:20,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640258900] [2022-12-06 17:10:20,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:20,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:10:20,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:20,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:10:20,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:10:20,854 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:10:20,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1253 places, 3226 transitions, 327817 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:20,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:20,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:10:20,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:37,563 INFO L130 PetriNetUnfolder]: 2603/10992 cut-off events. [2022-12-06 17:10:37,563 INFO L131 PetriNetUnfolder]: For 2242461/2303440 co-relation queries the response was YES. [2022-12-06 17:10:37,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301384 conditions, 10992 events. 2603/10992 cut-off events. For 2242461/2303440 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 128717 event pairs, 543 based on Foata normal form. 146/10742 useless extension candidates. Maximal degree in co-relation 189757. Up to 4691 conditions per place. [2022-12-06 17:10:37,648 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 770 selfloop transitions, 73 changer transitions 2333/3287 dead transitions. [2022-12-06 17:10:37,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1284 places, 3287 transitions, 339301 flow [2022-12-06 17:10:37,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-06 17:10:37,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-06 17:10:37,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3662 transitions. [2022-12-06 17:10:37,650 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6771449704142012 [2022-12-06 17:10:37,651 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1133 predicate places. [2022-12-06 17:10:37,651 INFO L495 AbstractCegarLoop]: Abstraction has has 1284 places, 3287 transitions, 339301 flow [2022-12-06 17:10:37,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:37,651 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:37,651 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:37,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-06 17:10:37,651 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:37,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:37,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2015988679, now seen corresponding path program 10 times [2022-12-06 17:10:37,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:37,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553059942] [2022-12-06 17:10:37,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:37,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:37,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:37,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553059942] [2022-12-06 17:10:37,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553059942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:37,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:37,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:10:37,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422085159] [2022-12-06 17:10:37,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:37,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:10:37,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:37,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:10:37,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:10:37,861 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:10:37,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1284 places, 3287 transitions, 339301 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:37,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:37,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:10:37,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:55,494 INFO L130 PetriNetUnfolder]: 2636/11171 cut-off events. [2022-12-06 17:10:55,494 INFO L131 PetriNetUnfolder]: For 2306310/2370684 co-relation queries the response was YES. [2022-12-06 17:10:55,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312212 conditions, 11171 events. 2636/11171 cut-off events. For 2306310/2370684 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 131490 event pairs, 549 based on Foata normal form. 145/10905 useless extension candidates. Maximal degree in co-relation 234078. Up to 4695 conditions per place. [2022-12-06 17:10:55,581 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 783 selfloop transitions, 71 changer transitions 2384/3349 dead transitions. [2022-12-06 17:10:55,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1312 places, 3349 transitions, 351550 flow [2022-12-06 17:10:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:10:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:10:55,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3334 transitions. [2022-12-06 17:10:55,583 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6802693327892267 [2022-12-06 17:10:55,583 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1161 predicate places. [2022-12-06 17:10:55,583 INFO L495 AbstractCegarLoop]: Abstraction has has 1312 places, 3349 transitions, 351550 flow [2022-12-06 17:10:55,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:55,584 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:55,584 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:55,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-06 17:10:55,584 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:55,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:55,584 INFO L85 PathProgramCache]: Analyzing trace with hash -746605795, now seen corresponding path program 11 times [2022-12-06 17:10:55,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:55,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437663900] [2022-12-06 17:10:55,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:55,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:55,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:55,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437663900] [2022-12-06 17:10:55,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437663900] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:55,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:55,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:10:55,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363696509] [2022-12-06 17:10:55,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:55,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:10:55,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:55,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:10:55,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:10:55,799 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:10:55,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1312 places, 3349 transitions, 351550 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:55,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:55,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:10:55,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:11:13,872 INFO L130 PetriNetUnfolder]: 2667/11374 cut-off events. [2022-12-06 17:11:13,872 INFO L131 PetriNetUnfolder]: For 2426823/2494971 co-relation queries the response was YES. [2022-12-06 17:11:13,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325004 conditions, 11374 events. 2667/11374 cut-off events. For 2426823/2494971 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 134492 event pairs, 555 based on Foata normal form. 150/11104 useless extension candidates. Maximal degree in co-relation 204431. Up to 4695 conditions per place. [2022-12-06 17:11:13,962 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 814 selfloop transitions, 69 changer transitions 2462/3456 dead transitions. [2022-12-06 17:11:13,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1356 places, 3456 transitions, 368124 flow [2022-12-06 17:11:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-06 17:11:13,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-12-06 17:11:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 5117 transitions. [2022-12-06 17:11:13,965 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6728468113083498 [2022-12-06 17:11:13,965 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1205 predicate places. [2022-12-06 17:11:13,965 INFO L495 AbstractCegarLoop]: Abstraction has has 1356 places, 3456 transitions, 368124 flow [2022-12-06 17:11:13,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:13,966 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:11:13,966 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:11:13,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-06 17:11:13,966 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:11:13,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:11:13,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1208469967, now seen corresponding path program 12 times [2022-12-06 17:11:13,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:11:13,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606915844] [2022-12-06 17:11:13,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:11:13,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:11:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:11:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:11:14,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:11:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606915844] [2022-12-06 17:11:14,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606915844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:11:14,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:11:14,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:11:14,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493410659] [2022-12-06 17:11:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:11:14,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:11:14,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:11:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:11:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:11:14,183 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:11:14,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1356 places, 3456 transitions, 368124 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:14,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:11:14,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:11:14,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:11:34,421 INFO L130 PetriNetUnfolder]: 2669/11428 cut-off events. [2022-12-06 17:11:34,421 INFO L131 PetriNetUnfolder]: For 2508599/2580135 co-relation queries the response was YES. [2022-12-06 17:11:34,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333951 conditions, 11428 events. 2669/11428 cut-off events. For 2508599/2580135 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 135420 event pairs, 541 based on Foata normal form. 124/11140 useless extension candidates. Maximal degree in co-relation 210122. Up to 4691 conditions per place. [2022-12-06 17:11:34,517 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 810 selfloop transitions, 60 changer transitions 2516/3497 dead transitions. [2022-12-06 17:11:34,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1383 places, 3497 transitions, 378444 flow [2022-12-06 17:11:34,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 17:11:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 17:11:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3222 transitions. [2022-12-06 17:11:34,541 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6808960270498732 [2022-12-06 17:11:34,541 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1232 predicate places. [2022-12-06 17:11:34,541 INFO L495 AbstractCegarLoop]: Abstraction has has 1383 places, 3497 transitions, 378444 flow [2022-12-06 17:11:34,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:34,541 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:11:34,542 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:11:34,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-06 17:11:34,542 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:11:34,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:11:34,542 INFO L85 PathProgramCache]: Analyzing trace with hash -954801065, now seen corresponding path program 13 times [2022-12-06 17:11:34,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:11:34,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999470517] [2022-12-06 17:11:34,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:11:34,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:11:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:11:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:11:34,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:11:34,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999470517] [2022-12-06 17:11:34,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999470517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:11:34,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:11:34,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:11:34,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112307811] [2022-12-06 17:11:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:11:34,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:11:34,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:11:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:11:34,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:11:34,742 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:11:34,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1383 places, 3497 transitions, 378444 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:34,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:11:34,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:11:34,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:11:57,207 INFO L130 PetriNetUnfolder]: 2692/11551 cut-off events. [2022-12-06 17:11:57,207 INFO L131 PetriNetUnfolder]: For 2590628/2663641 co-relation queries the response was YES. [2022-12-06 17:11:57,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344973 conditions, 11551 events. 2692/11551 cut-off events. For 2590628/2663641 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 137069 event pairs, 556 based on Foata normal form. 122/11264 useless extension candidates. Maximal degree in co-relation 217721. Up to 4709 conditions per place. [2022-12-06 17:11:57,303 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 818 selfloop transitions, 70 changer transitions 2565/3564 dead transitions. [2022-12-06 17:11:57,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1408 places, 3564 transitions, 391976 flow [2022-12-06 17:11:57,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 17:11:57,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 17:11:57,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3005 transitions. [2022-12-06 17:11:57,305 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6838871187983614 [2022-12-06 17:11:57,305 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1257 predicate places. [2022-12-06 17:11:57,306 INFO L495 AbstractCegarLoop]: Abstraction has has 1408 places, 3564 transitions, 391976 flow [2022-12-06 17:11:57,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:57,306 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:11:57,306 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:11:57,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-06 17:11:57,306 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:11:57,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:11:57,306 INFO L85 PathProgramCache]: Analyzing trace with hash -920420399, now seen corresponding path program 14 times [2022-12-06 17:11:57,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:11:57,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826875829] [2022-12-06 17:11:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:11:57,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:11:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:11:57,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:11:57,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:11:57,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826875829] [2022-12-06 17:11:57,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826875829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:11:57,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:11:57,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:11:57,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82401747] [2022-12-06 17:11:57,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:11:57,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:11:57,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:11:57,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:11:57,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:11:57,528 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:11:57,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1408 places, 3564 transitions, 391976 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:57,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:11:57,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:11:57,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:12:19,072 INFO L130 PetriNetUnfolder]: 2710/11550 cut-off events. [2022-12-06 17:12:19,073 INFO L131 PetriNetUnfolder]: For 2637972/2717964 co-relation queries the response was YES. [2022-12-06 17:12:19,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354670 conditions, 11550 events. 2710/11550 cut-off events. For 2637972/2717964 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 136936 event pairs, 548 based on Foata normal form. 153/11295 useless extension candidates. Maximal degree in co-relation 263177. Up to 4742 conditions per place. [2022-12-06 17:12:19,172 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 804 selfloop transitions, 78 changer transitions 2618/3611 dead transitions. [2022-12-06 17:12:19,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1435 places, 3611 transitions, 403365 flow [2022-12-06 17:12:19,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 17:12:19,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 17:12:19,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3222 transitions. [2022-12-06 17:12:19,181 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6808960270498732 [2022-12-06 17:12:19,181 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1284 predicate places. [2022-12-06 17:12:19,181 INFO L495 AbstractCegarLoop]: Abstraction has has 1435 places, 3611 transitions, 403365 flow [2022-12-06 17:12:19,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:19,181 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:12:19,182 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:12:19,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-06 17:12:19,182 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:12:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:12:19,182 INFO L85 PathProgramCache]: Analyzing trace with hash 490698117, now seen corresponding path program 15 times [2022-12-06 17:12:19,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:12:19,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680544613] [2022-12-06 17:12:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:12:19,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:12:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:12:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:12:19,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:12:19,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680544613] [2022-12-06 17:12:19,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680544613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:12:19,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:12:19,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:12:19,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914390269] [2022-12-06 17:12:19,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:12:19,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:12:19,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:12:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:12:19,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:12:19,389 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:12:19,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1435 places, 3611 transitions, 403365 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:19,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:12:19,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:12:19,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:12:41,562 INFO L130 PetriNetUnfolder]: 2719/11704 cut-off events. [2022-12-06 17:12:41,562 INFO L131 PetriNetUnfolder]: For 2736008/2818395 co-relation queries the response was YES. [2022-12-06 17:12:41,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363949 conditions, 11704 events. 2719/11704 cut-off events. For 2736008/2818395 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 139408 event pairs, 545 based on Foata normal form. 149/11427 useless extension candidates. Maximal degree in co-relation 229947. Up to 4764 conditions per place. [2022-12-06 17:12:41,661 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 797 selfloop transitions, 61 changer transitions 2674/3643 dead transitions. [2022-12-06 17:12:41,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1463 places, 3643 transitions, 413470 flow [2022-12-06 17:12:41,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:12:41,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:12:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3330 transitions. [2022-12-06 17:12:41,663 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6794531728218731 [2022-12-06 17:12:41,664 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1312 predicate places. [2022-12-06 17:12:41,664 INFO L495 AbstractCegarLoop]: Abstraction has has 1463 places, 3643 transitions, 413470 flow [2022-12-06 17:12:41,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:41,664 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:12:41,664 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:12:41,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-06 17:12:41,664 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:12:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:12:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1760268607, now seen corresponding path program 16 times [2022-12-06 17:12:41,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:12:41,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693752656] [2022-12-06 17:12:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:12:41,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:12:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:12:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:12:41,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:12:41,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693752656] [2022-12-06 17:12:41,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693752656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:12:41,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:12:41,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:12:41,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901723454] [2022-12-06 17:12:41,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:12:41,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:12:41,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:12:41,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:12:41,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:12:41,848 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:12:41,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1463 places, 3643 transitions, 413470 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:41,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:12:41,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:12:41,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:13:05,772 INFO L130 PetriNetUnfolder]: 2744/11851 cut-off events. [2022-12-06 17:13:05,772 INFO L131 PetriNetUnfolder]: For 2863649/2950197 co-relation queries the response was YES. [2022-12-06 17:13:05,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376132 conditions, 11851 events. 2744/11851 cut-off events. For 2863649/2950197 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 141659 event pairs, 552 based on Foata normal form. 159/11595 useless extension candidates. Maximal degree in co-relation 237588. Up to 4833 conditions per place. [2022-12-06 17:13:05,875 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 817 selfloop transitions, 64 changer transitions 2741/3733 dead transitions. [2022-12-06 17:13:05,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1502 places, 3733 transitions, 429502 flow [2022-12-06 17:13:05,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-06 17:13:05,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-12-06 17:13:05,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 4552 transitions. [2022-12-06 17:13:05,878 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6733727810650888 [2022-12-06 17:13:05,878 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1351 predicate places. [2022-12-06 17:13:05,878 INFO L495 AbstractCegarLoop]: Abstraction has has 1502 places, 3733 transitions, 429502 flow [2022-12-06 17:13:05,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:05,879 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:13:05,879 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:13:05,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-06 17:13:05,879 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:13:05,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:13:05,879 INFO L85 PathProgramCache]: Analyzing trace with hash -19240479, now seen corresponding path program 17 times [2022-12-06 17:13:05,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:13:05,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156298164] [2022-12-06 17:13:05,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:13:05,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:13:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:13:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:13:06,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:13:06,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156298164] [2022-12-06 17:13:06,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156298164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:13:06,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:13:06,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:13:06,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080858976] [2022-12-06 17:13:06,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:13:06,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:13:06,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:13:06,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:13:06,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:13:06,091 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:13:06,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1502 places, 3733 transitions, 429502 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:06,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:13:06,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:13:06,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:13:30,652 INFO L130 PetriNetUnfolder]: 2766/11898 cut-off events. [2022-12-06 17:13:30,653 INFO L131 PetriNetUnfolder]: For 2921850/3013913 co-relation queries the response was YES. [2022-12-06 17:13:30,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386840 conditions, 11898 events. 2766/11898 cut-off events. For 2921850/3013913 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 142242 event pairs, 543 based on Foata normal form. 147/11620 useless extension candidates. Maximal degree in co-relation 277782. Up to 4875 conditions per place. [2022-12-06 17:13:30,756 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 813 selfloop transitions, 66 changer transitions 2796/3786 dead transitions. [2022-12-06 17:13:30,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1530 places, 3786 transitions, 442257 flow [2022-12-06 17:13:30,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:13:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:13:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3336 transitions. [2022-12-06 17:13:30,758 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6806774127729035 [2022-12-06 17:13:30,759 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1379 predicate places. [2022-12-06 17:13:30,759 INFO L495 AbstractCegarLoop]: Abstraction has has 1530 places, 3786 transitions, 442257 flow [2022-12-06 17:13:30,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:30,759 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:13:30,759 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:13:30,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-06 17:13:30,759 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:13:30,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:13:30,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1895378975, now seen corresponding path program 18 times [2022-12-06 17:13:30,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:13:30,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764420869] [2022-12-06 17:13:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:13:30,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:13:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:13:30,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:13:30,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:13:30,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764420869] [2022-12-06 17:13:30,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764420869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:13:30,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:13:30,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:13:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335689096] [2022-12-06 17:13:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:13:30,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:13:30,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:13:30,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:13:30,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:13:30,956 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:13:30,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1530 places, 3786 transitions, 442257 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:30,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:13:30,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:13:30,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:13:56,863 INFO L130 PetriNetUnfolder]: 2778/12033 cut-off events. [2022-12-06 17:13:56,864 INFO L131 PetriNetUnfolder]: For 3052053/3147254 co-relation queries the response was YES. [2022-12-06 17:13:56,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397730 conditions, 12033 events. 2778/12033 cut-off events. For 3052053/3147254 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 144530 event pairs, 533 based on Foata normal form. 154/11765 useless extension candidates. Maximal degree in co-relation 251491. Up to 4920 conditions per place. [2022-12-06 17:13:56,976 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 808 selfloop transitions, 63 changer transitions 2863/3845 dead transitions. [2022-12-06 17:13:56,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1570 places, 3845 transitions, 455982 flow [2022-12-06 17:13:56,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-06 17:13:56,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-06 17:13:56,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 4666 transitions. [2022-12-06 17:13:56,978 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6734016452590561 [2022-12-06 17:13:56,978 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1419 predicate places. [2022-12-06 17:13:56,979 INFO L495 AbstractCegarLoop]: Abstraction has has 1570 places, 3845 transitions, 455982 flow [2022-12-06 17:13:56,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:56,979 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:13:56,979 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:13:56,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-06 17:13:56,979 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:13:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:13:56,979 INFO L85 PathProgramCache]: Analyzing trace with hash 440320933, now seen corresponding path program 19 times [2022-12-06 17:13:56,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:13:56,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488919753] [2022-12-06 17:13:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:13:56,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:13:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:13:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:13:57,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:13:57,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488919753] [2022-12-06 17:13:57,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488919753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:13:57,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:13:57,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:13:57,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355606357] [2022-12-06 17:13:57,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:13:57,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:13:57,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:13:57,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:13:57,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:13:57,176 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:13:57,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1570 places, 3845 transitions, 455982 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:57,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:13:57,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:13:57,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:14:22,265 INFO L130 PetriNetUnfolder]: 2777/12052 cut-off events. [2022-12-06 17:14:22,266 INFO L131 PetriNetUnfolder]: For 3122916/3219617 co-relation queries the response was YES. [2022-12-06 17:14:22,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406750 conditions, 12052 events. 2777/12052 cut-off events. For 3122916/3219617 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 144549 event pairs, 548 based on Foata normal form. 128/11761 useless extension candidates. Maximal degree in co-relation 257136. Up to 4939 conditions per place. [2022-12-06 17:14:22,380 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 787 selfloop transitions, 43 changer transitions 2927/3868 dead transitions. [2022-12-06 17:14:22,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1604 places, 3868 transitions, 466021 flow [2022-12-06 17:14:22,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-06 17:14:22,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-06 17:14:22,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4001 transitions. [2022-12-06 17:14:22,383 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6764158918005072 [2022-12-06 17:14:22,383 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1453 predicate places. [2022-12-06 17:14:22,383 INFO L495 AbstractCegarLoop]: Abstraction has has 1604 places, 3868 transitions, 466021 flow [2022-12-06 17:14:22,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:14:22,383 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:14:22,383 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:14:22,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-06 17:14:22,384 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:14:22,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:14:22,384 INFO L85 PathProgramCache]: Analyzing trace with hash -789863267, now seen corresponding path program 20 times [2022-12-06 17:14:22,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:14:22,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746375931] [2022-12-06 17:14:22,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:14:22,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:14:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:14:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:14:22,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:14:22,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746375931] [2022-12-06 17:14:22,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746375931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:14:22,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:14:22,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:14:22,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479491310] [2022-12-06 17:14:22,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:14:22,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:14:22,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:14:22,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:14:22,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:14:22,564 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:14:22,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1604 places, 3868 transitions, 466021 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:14:22,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:14:22,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:14:22,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:14:51,778 INFO L130 PetriNetUnfolder]: 2803/12153 cut-off events. [2022-12-06 17:14:51,778 INFO L131 PetriNetUnfolder]: For 3204086/3308302 co-relation queries the response was YES. [2022-12-06 17:14:51,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418273 conditions, 12153 events. 2803/12153 cut-off events. For 3204086/3308302 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 146173 event pairs, 539 based on Foata normal form. 142/11865 useless extension candidates. Maximal degree in co-relation 264627. Up to 4986 conditions per place. [2022-12-06 17:14:52,020 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 776 selfloop transitions, 61 changer transitions 2978/3926 dead transitions. [2022-12-06 17:14:52,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1632 places, 3926 transitions, 480104 flow [2022-12-06 17:14:52,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:14:52,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:14:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3336 transitions. [2022-12-06 17:14:52,023 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6806774127729035 [2022-12-06 17:14:52,023 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1481 predicate places. [2022-12-06 17:14:52,023 INFO L495 AbstractCegarLoop]: Abstraction has has 1632 places, 3926 transitions, 480104 flow [2022-12-06 17:14:52,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:14:52,023 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:14:52,023 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:14:52,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-06 17:14:52,023 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:14:52,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:14:52,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1176347291, now seen corresponding path program 21 times [2022-12-06 17:14:52,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:14:52,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302321217] [2022-12-06 17:14:52,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:14:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:14:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:14:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:14:52,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:14:52,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302321217] [2022-12-06 17:14:52,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302321217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:14:52,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:14:52,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:14:52,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240142221] [2022-12-06 17:14:52,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:14:52,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:14:52,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:14:52,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:14:52,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:14:52,240 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:14:52,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1632 places, 3926 transitions, 480104 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:14:52,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:14:52,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:14:52,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:15:20,692 INFO L130 PetriNetUnfolder]: 2803/12238 cut-off events. [2022-12-06 17:15:20,692 INFO L131 PetriNetUnfolder]: For 3318514/3421597 co-relation queries the response was YES. [2022-12-06 17:15:20,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427873 conditions, 12238 events. 2803/12238 cut-off events. For 3318514/3421597 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 147513 event pairs, 555 based on Foata normal form. 131/11942 useless extension candidates. Maximal degree in co-relation 270588. Up to 5012 conditions per place. [2022-12-06 17:15:20,803 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 765 selfloop transitions, 51 changer transitions 3037/3964 dead transitions. [2022-12-06 17:15:20,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1666 places, 3964 transitions, 491743 flow [2022-12-06 17:15:20,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-06 17:15:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-06 17:15:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4001 transitions. [2022-12-06 17:15:20,806 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6764158918005072 [2022-12-06 17:15:20,806 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1515 predicate places. [2022-12-06 17:15:20,806 INFO L495 AbstractCegarLoop]: Abstraction has has 1666 places, 3964 transitions, 491743 flow [2022-12-06 17:15:20,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:15:20,806 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:15:20,806 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:15:20,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-06 17:15:20,806 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:15:20,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:15:20,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1432303321, now seen corresponding path program 22 times [2022-12-06 17:15:20,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:15:20,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013505412] [2022-12-06 17:15:20,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:15:20,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:15:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:15:21,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:15:21,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:15:21,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013505412] [2022-12-06 17:15:21,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013505412] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:15:21,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:15:21,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:15:21,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430783937] [2022-12-06 17:15:21,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:15:21,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:15:21,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:15:21,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:15:21,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:15:21,006 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:15:21,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1666 places, 3964 transitions, 491743 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:15:21,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:15:21,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:15:21,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:15:51,636 INFO L130 PetriNetUnfolder]: 2803/12162 cut-off events. [2022-12-06 17:15:51,637 INFO L131 PetriNetUnfolder]: For 3395245/3508150 co-relation queries the response was YES. [2022-12-06 17:15:51,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435336 conditions, 12162 events. 2803/12162 cut-off events. For 3395245/3508150 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 146382 event pairs, 553 based on Foata normal form. 143/11876 useless extension candidates. Maximal degree in co-relation 275818. Up to 5008 conditions per place. [2022-12-06 17:15:51,747 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 736 selfloop transitions, 26 changer transitions 3094/3967 dead transitions. [2022-12-06 17:15:51,747 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1692 places, 3967 transitions, 499399 flow [2022-12-06 17:15:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 17:15:51,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 17:15:51,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3114 transitions. [2022-12-06 17:15:51,749 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6824457593688363 [2022-12-06 17:15:51,749 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1541 predicate places. [2022-12-06 17:15:51,749 INFO L495 AbstractCegarLoop]: Abstraction has has 1692 places, 3967 transitions, 499399 flow [2022-12-06 17:15:51,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:15:51,749 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:15:51,749 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:15:51,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-06 17:15:51,749 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:15:51,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:15:51,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1105747485, now seen corresponding path program 23 times [2022-12-06 17:15:51,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:15:51,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812598089] [2022-12-06 17:15:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:15:51,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:15:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:15:51,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:15:51,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:15:51,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812598089] [2022-12-06 17:15:51,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812598089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:15:51,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:15:51,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:15:51,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411303730] [2022-12-06 17:15:51,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:15:51,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:15:51,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:15:51,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:15:51,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:15:51,960 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:15:51,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1692 places, 3967 transitions, 499399 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:15:51,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:15:51,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:15:51,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:16:23,777 INFO L130 PetriNetUnfolder]: 2874/12424 cut-off events. [2022-12-06 17:16:23,777 INFO L131 PetriNetUnfolder]: For 3517740/3631877 co-relation queries the response was YES. [2022-12-06 17:16:23,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451993 conditions, 12424 events. 2874/12424 cut-off events. For 3517740/3631877 co-relation queries the response was YES. Maximal size of possible extension queue 621. Compared 149868 event pairs, 556 based on Foata normal form. 135/12121 useless extension candidates. Maximal degree in co-relation 288621. Up to 5111 conditions per place. [2022-12-06 17:16:23,898 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 781 selfloop transitions, 63 changer transitions 3158/4113 dead transitions. [2022-12-06 17:16:23,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1729 places, 4113 transitions, 522983 flow [2022-12-06 17:16:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-06 17:16:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-06 17:16:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4324 transitions. [2022-12-06 17:16:23,900 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6733104951728434 [2022-12-06 17:16:23,900 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1578 predicate places. [2022-12-06 17:16:23,901 INFO L495 AbstractCegarLoop]: Abstraction has has 1729 places, 4113 transitions, 522983 flow [2022-12-06 17:16:23,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:16:23,901 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:16:23,901 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:16:23,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-06 17:16:23,901 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:16:23,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:16:23,901 INFO L85 PathProgramCache]: Analyzing trace with hash 200673917, now seen corresponding path program 24 times [2022-12-06 17:16:23,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:16:23,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033145200] [2022-12-06 17:16:23,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:16:23,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:16:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:16:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:16:24,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:16:24,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033145200] [2022-12-06 17:16:24,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033145200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:16:24,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:16:24,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:16:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294296781] [2022-12-06 17:16:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:16:24,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:16:24,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:16:24,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:16:24,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:16:24,074 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:16:24,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1729 places, 4113 transitions, 522983 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:16:24,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:16:24,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:16:24,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:16:56,815 INFO L130 PetriNetUnfolder]: 2901/12605 cut-off events. [2022-12-06 17:16:56,815 INFO L131 PetriNetUnfolder]: For 3621890/3737701 co-relation queries the response was YES. [2022-12-06 17:16:56,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466032 conditions, 12605 events. 2901/12605 cut-off events. For 3621890/3737701 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 152683 event pairs, 553 based on Foata normal form. 135/12312 useless extension candidates. Maximal degree in co-relation 329334. Up to 5191 conditions per place. [2022-12-06 17:16:57,036 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 811 selfloop transitions, 71 changer transitions 3218/4211 dead transitions. [2022-12-06 17:16:57,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1761 places, 4211 transitions, 542996 flow [2022-12-06 17:16:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-06 17:16:57,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-06 17:16:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3778 transitions. [2022-12-06 17:16:57,038 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6774251389636005 [2022-12-06 17:16:57,038 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1610 predicate places. [2022-12-06 17:16:57,038 INFO L495 AbstractCegarLoop]: Abstraction has has 1761 places, 4211 transitions, 542996 flow [2022-12-06 17:16:57,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:16:57,039 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:16:57,039 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:16:57,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-06 17:16:57,039 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:16:57,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:16:57,039 INFO L85 PathProgramCache]: Analyzing trace with hash -65720899, now seen corresponding path program 25 times [2022-12-06 17:16:57,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:16:57,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267411240] [2022-12-06 17:16:57,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:16:57,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:16:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:16:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:16:57,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:16:57,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267411240] [2022-12-06 17:16:57,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267411240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:16:57,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:16:57,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:16:57,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052278110] [2022-12-06 17:16:57,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:16:57,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:16:57,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:16:57,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:16:57,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:16:57,231 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:16:57,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1761 places, 4211 transitions, 542996 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:16:57,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:16:57,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:16:57,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:17:31,436 INFO L130 PetriNetUnfolder]: 2939/12725 cut-off events. [2022-12-06 17:17:31,436 INFO L131 PetriNetUnfolder]: For 3758243/3879709 co-relation queries the response was YES. [2022-12-06 17:17:31,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480604 conditions, 12725 events. 2939/12725 cut-off events. For 3758243/3879709 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 154324 event pairs, 555 based on Foata normal form. 123/12414 useless extension candidates. Maximal degree in co-relation 308618. Up to 5273 conditions per place. [2022-12-06 17:17:31,560 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 852 selfloop transitions, 74 changer transitions 3275/4312 dead transitions. [2022-12-06 17:17:31,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1792 places, 4312 transitions, 563492 flow [2022-12-06 17:17:31,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-06 17:17:31,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-06 17:17:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3669 transitions. [2022-12-06 17:17:31,562 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.678439349112426 [2022-12-06 17:17:31,563 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1641 predicate places. [2022-12-06 17:17:31,563 INFO L495 AbstractCegarLoop]: Abstraction has has 1792 places, 4312 transitions, 563492 flow [2022-12-06 17:17:31,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:17:31,563 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:17:31,563 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:17:31,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-06 17:17:31,563 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:17:31,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:17:31,564 INFO L85 PathProgramCache]: Analyzing trace with hash 44793577, now seen corresponding path program 26 times [2022-12-06 17:17:31,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:17:31,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487617997] [2022-12-06 17:17:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:17:31,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:17:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:17:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:17:31,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:17:31,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487617997] [2022-12-06 17:17:31,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487617997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:17:31,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:17:31,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:17:31,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818209987] [2022-12-06 17:17:31,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:17:31,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:17:31,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:17:31,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:17:31,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:17:31,757 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:17:31,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1792 places, 4312 transitions, 563492 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:17:31,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:17:31,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:17:31,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:18:06,291 INFO L130 PetriNetUnfolder]: 2967/12831 cut-off events. [2022-12-06 17:18:06,292 INFO L131 PetriNetUnfolder]: For 3854210/3979338 co-relation queries the response was YES. [2022-12-06 17:18:06,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493388 conditions, 12831 events. 2967/12831 cut-off events. For 3854210/3979338 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 155963 event pairs, 551 based on Foata normal form. 128/12518 useless extension candidates. Maximal degree in co-relation 376440. Up to 5325 conditions per place. [2022-12-06 17:18:06,541 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 850 selfloop transitions, 87 changer transitions 3327/4375 dead transitions. [2022-12-06 17:18:06,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1820 places, 4375 transitions, 579829 flow [2022-12-06 17:18:06,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:18:06,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:18:06,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3335 transitions. [2022-12-06 17:18:06,543 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6804733727810651 [2022-12-06 17:18:06,544 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1669 predicate places. [2022-12-06 17:18:06,544 INFO L495 AbstractCegarLoop]: Abstraction has has 1820 places, 4375 transitions, 579829 flow [2022-12-06 17:18:06,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:18:06,544 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:18:06,544 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:18:06,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-06 17:18:06,544 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:18:06,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:18:06,545 INFO L85 PathProgramCache]: Analyzing trace with hash 266371029, now seen corresponding path program 27 times [2022-12-06 17:18:06,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:18:06,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834073966] [2022-12-06 17:18:06,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:18:06,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:18:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:18:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:18:06,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:18:06,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834073966] [2022-12-06 17:18:06,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834073966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:18:06,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:18:06,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:18:06,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182182996] [2022-12-06 17:18:06,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:18:06,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:18:06,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:18:06,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:18:06,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:18:06,744 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:18:06,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1820 places, 4375 transitions, 579829 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:18:06,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:18:06,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:18:06,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:18:47,270 INFO L130 PetriNetUnfolder]: 2983/12928 cut-off events. [2022-12-06 17:18:47,270 INFO L131 PetriNetUnfolder]: For 4037217/4171387 co-relation queries the response was YES. [2022-12-06 17:18:47,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505920 conditions, 12928 events. 2983/12928 cut-off events. For 4037217/4171387 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 157544 event pairs, 544 based on Foata normal form. 148/12645 useless extension candidates. Maximal degree in co-relation 325260. Up to 5377 conditions per place. [2022-12-06 17:18:47,394 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 844 selfloop transitions, 108 changer transitions 3380/4443 dead transitions. [2022-12-06 17:18:47,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1846 places, 4443 transitions, 597201 flow [2022-12-06 17:18:47,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 17:18:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 17:18:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3113 transitions. [2022-12-06 17:18:47,396 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6822266053035284 [2022-12-06 17:18:47,397 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1695 predicate places. [2022-12-06 17:18:47,397 INFO L495 AbstractCegarLoop]: Abstraction has has 1846 places, 4443 transitions, 597201 flow [2022-12-06 17:18:47,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:18:47,397 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:18:47,397 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:18:47,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-06 17:18:47,397 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:18:47,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:18:47,397 INFO L85 PathProgramCache]: Analyzing trace with hash -412011017, now seen corresponding path program 28 times [2022-12-06 17:18:47,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:18:47,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779724112] [2022-12-06 17:18:47,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:18:47,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:18:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:18:47,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:18:47,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:18:47,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779724112] [2022-12-06 17:18:47,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779724112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:18:47,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:18:47,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:18:47,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808833901] [2022-12-06 17:18:47,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:18:47,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:18:47,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:18:47,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:18:47,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:18:47,588 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:18:47,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1846 places, 4443 transitions, 597201 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:18:47,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:18:47,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:18:47,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:19:29,475 INFO L130 PetriNetUnfolder]: 3018/13167 cut-off events. [2022-12-06 17:19:29,475 INFO L131 PetriNetUnfolder]: For 4117842/4250406 co-relation queries the response was YES. [2022-12-06 17:19:29,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520778 conditions, 13167 events. 3018/13167 cut-off events. For 4117842/4250406 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 161254 event pairs, 557 based on Foata normal form. 134/12858 useless extension candidates. Maximal degree in co-relation 376059. Up to 5453 conditions per place. [2022-12-06 17:19:29,602 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 895 selfloop transitions, 87 changer transitions 3440/4533 dead transitions. [2022-12-06 17:19:29,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1879 places, 4533 transitions, 617464 flow [2022-12-06 17:19:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-06 17:19:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-06 17:19:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3894 transitions. [2022-12-06 17:19:29,604 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.677688827010094 [2022-12-06 17:19:29,605 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1728 predicate places. [2022-12-06 17:19:29,605 INFO L495 AbstractCegarLoop]: Abstraction has has 1879 places, 4533 transitions, 617464 flow [2022-12-06 17:19:29,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:19:29,605 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:19:29,605 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:19:29,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-06 17:19:29,605 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:19:29,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:19:29,605 INFO L85 PathProgramCache]: Analyzing trace with hash -243092249, now seen corresponding path program 29 times [2022-12-06 17:19:29,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:19:29,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649596563] [2022-12-06 17:19:29,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:19:29,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:19:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:19:29,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:19:29,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:19:29,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649596563] [2022-12-06 17:19:29,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649596563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:19:29,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:19:29,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:19:29,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318898519] [2022-12-06 17:19:29,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:19:29,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:19:29,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:19:29,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:19:29,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:19:29,794 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:19:29,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1879 places, 4533 transitions, 617464 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:19:29,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:19:29,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:19:29,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:20:16,000 INFO L130 PetriNetUnfolder]: 3049/13245 cut-off events. [2022-12-06 17:20:16,000 INFO L131 PetriNetUnfolder]: For 4247408/4388923 co-relation queries the response was YES. [2022-12-06 17:20:16,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533998 conditions, 13245 events. 3049/13245 cut-off events. For 4247408/4388923 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 162240 event pairs, 555 based on Foata normal form. 136/12932 useless extension candidates. Maximal degree in co-relation 344318. Up to 5506 conditions per place. [2022-12-06 17:20:16,129 INFO L137 encePairwiseOnDemand]: 146/169 looper letters, 901 selfloop transitions, 91 changer transitions 3490/4593 dead transitions. [2022-12-06 17:20:16,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1907 places, 4593 transitions, 634132 flow [2022-12-06 17:20:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:20:16,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:20:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3337 transitions. [2022-12-06 17:20:16,131 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6808814527647419 [2022-12-06 17:20:16,131 INFO L294 CegarLoopForPetriNet]: 151 programPoint places, 1756 predicate places. [2022-12-06 17:20:16,131 INFO L495 AbstractCegarLoop]: Abstraction has has 1907 places, 4593 transitions, 634132 flow [2022-12-06 17:20:16,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:20:16,131 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:20:16,131 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:20:16,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-06 17:20:16,131 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:20:16,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:20:16,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1194665583, now seen corresponding path program 30 times [2022-12-06 17:20:16,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:20:16,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553403556] [2022-12-06 17:20:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:20:16,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:20:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:20:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:20:16,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:20:16,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553403556] [2022-12-06 17:20:16,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553403556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:20:16,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:20:16,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 17:20:16,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91940793] [2022-12-06 17:20:16,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:20:16,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 17:20:16,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:20:16,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 17:20:16,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-06 17:20:16,319 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 169 [2022-12-06 17:20:16,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1907 places, 4593 transitions, 634132 flow. Second operand has 14 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:20:16,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:20:16,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 169 [2022-12-06 17:20:16,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 17:20:50,595 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 17:20:50,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-06 17:20:50,627 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 17:20:50,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-06 17:20:50,627 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (14states, 108/169 universal loopers) in iteration 80,while PetriNetUnfolder was constructing finite prefix that currently has 430589 conditions, 11365 events (2799/11364 cut-off events. For 3977234/4114646 co-relation queries the response was YES. Maximal size of possible extension queue 674. Compared 144584 event pairs, 428 based on Foata normal form. 123/11389 useless extension candidates. Maximal degree in co-relation 327179. Up to 4193 conditions per place.). [2022-12-06 17:20:50,629 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 17:20:50,629 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 17:20:50,629 INFO L458 BasicCegarLoop]: Path program histogram: [30, 20, 15, 15] [2022-12-06 17:20:50,632 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:20:50,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:20:50,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:20:50 BasicIcfg [2022-12-06 17:20:50,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:20:50,639 INFO L158 Benchmark]: Toolchain (without parser) took 821321.86ms. Allocated memory was 208.7MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 184.5MB in the beginning and 546.6MB in the end (delta: -362.1MB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-12-06 17:20:50,639 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 185.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:20:50,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.19ms. Allocated memory is still 208.7MB. Free memory was 184.1MB in the beginning and 173.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-06 17:20:50,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.96ms. Allocated memory is still 208.7MB. Free memory was 173.1MB in the beginning and 171.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:20:50,640 INFO L158 Benchmark]: Boogie Preprocessor took 29.43ms. Allocated memory is still 208.7MB. Free memory was 171.1MB in the beginning and 169.8MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 17:20:50,640 INFO L158 Benchmark]: RCFGBuilder took 358.92ms. Allocated memory is still 208.7MB. Free memory was 169.4MB in the beginning and 153.2MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-06 17:20:50,640 INFO L158 Benchmark]: TraceAbstraction took 820651.95ms. Allocated memory was 208.7MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 152.6MB in the beginning and 546.6MB in the end (delta: -394.0MB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-12-06 17:20:50,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 185.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 215.19ms. Allocated memory is still 208.7MB. Free memory was 184.1MB in the beginning and 173.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.96ms. Allocated memory is still 208.7MB. Free memory was 173.1MB in the beginning and 171.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.43ms. Allocated memory is still 208.7MB. Free memory was 171.1MB in the beginning and 169.8MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 358.92ms. Allocated memory is still 208.7MB. Free memory was 169.4MB in the beginning and 153.2MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 820651.95ms. Allocated memory was 208.7MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 152.6MB in the beginning and 546.6MB in the end (delta: -394.0MB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (14states, 108/169 universal loopers) in iteration 80,while PetriNetUnfolder was constructing finite prefix that currently has 430589 conditions, 11365 events (2799/11364 cut-off events. For 3977234/4114646 co-relation queries the response was YES. Maximal size of possible extension queue 674. Compared 144584 event pairs, 428 based on Foata normal form. 123/11389 useless extension candidates. Maximal degree in co-relation 327179. Up to 4193 conditions per place.). - TimeoutResultAtElement [Line: 66]: 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 (14states, 108/169 universal loopers) in iteration 80,while PetriNetUnfolder was constructing finite prefix that currently has 430589 conditions, 11365 events (2799/11364 cut-off events. For 3977234/4114646 co-relation queries the response was YES. Maximal size of possible extension queue 674. Compared 144584 event pairs, 428 based on Foata normal form. 123/11389 useless extension candidates. Maximal degree in co-relation 327179. Up to 4193 conditions per place.). - TimeoutResultAtElement [Line: 67]: 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 (14states, 108/169 universal loopers) in iteration 80,while PetriNetUnfolder was constructing finite prefix that currently has 430589 conditions, 11365 events (2799/11364 cut-off events. For 3977234/4114646 co-relation queries the response was YES. Maximal size of possible extension queue 674. Compared 144584 event pairs, 428 based on Foata normal form. 123/11389 useless extension candidates. Maximal degree in co-relation 327179. Up to 4193 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 235 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 820.5s, OverallIterations: 80, TraceHistogramMax: 1, PathProgramHistogramMax: 30, EmptinessCheckTime: 0.0s, AutomataDifference: 805.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8432 SdHoareTripleChecker+Valid, 14.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8432 mSDsluCounter, 50614 SdHoareTripleChecker+Invalid, 12.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43652 mSDsCounter, 385 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30982 IncrementalHoareTripleChecker+Invalid, 31367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 385 mSolverCounterUnsat, 6962 mSDtfsCounter, 30982 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2422 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 2244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14539 ImplicationChecksByTransitivity, 39.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=634132occurred in iteration=79, InterpolantAutomatonStates: 1838, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 7100 NumberOfCodeBlocks, 7100 NumberOfCodeBlocksAsserted, 80 NumberOfCheckSat, 7020 ConstructedInterpolants, 0 QuantifiedInterpolants, 48567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 80 InterpolantComputations, 80 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