/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 00:15:11,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 00:15:11,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 00:15:11,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 00:15:11,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 00:15:11,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 00:15:11,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 00:15:11,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 00:15:11,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 00:15:11,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 00:15:11,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 00:15:11,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 00:15:11,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 00:15:11,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 00:15:11,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 00:15:11,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 00:15:11,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 00:15:11,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 00:15:11,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 00:15:11,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 00:15:11,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 00:15:11,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 00:15:11,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 00:15:11,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 00:15:11,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 00:15:11,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 00:15:11,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 00:15:11,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 00:15:11,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 00:15:11,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 00:15:11,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 00:15:11,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 00:15:11,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 00:15:11,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 00:15:11,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 00:15:11,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 00:15:11,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 00:15:11,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 00:15:11,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 00:15:11,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 00:15:11,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 00:15:11,837 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 [2022-12-12 00:15:11,891 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 00:15:11,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 00:15:11,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 00:15:11,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 00:15:11,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 00:15:11,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 00:15:11,894 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 00:15:11,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 00:15:11,894 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 00:15:11,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 00:15:11,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 00:15:11,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 00:15:11,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 00:15:11,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 00:15:11,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 00:15:11,896 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 00:15:11,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 00:15:11,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 00:15:11,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 00:15:11,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 00:15:11,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 00:15:11,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 00:15:11,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 00:15:11,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:15:11,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 00:15:11,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 00:15:11,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 00:15:11,897 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 00:15:11,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 00:15:11,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 00:15:11,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 00:15:11,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 00:15:12,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 00:15:12,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 00:15:12,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 00:15:12,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 00:15:12,424 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 00:15:12,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2022-12-12 00:15:13,437 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 00:15:13,632 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 00:15:13,632 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2022-12-12 00:15:13,637 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea3047c1e/9caa8459ae864402a1109a6e5e0f62e3/FLAG9b2472ea7 [2022-12-12 00:15:13,656 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea3047c1e/9caa8459ae864402a1109a6e5e0f62e3 [2022-12-12 00:15:13,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 00:15:13,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 00:15:13,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 00:15:13,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 00:15:13,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 00:15:13,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13, skipping insertion in model container [2022-12-12 00:15:13,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 00:15:13,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 00:15:13,820 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-simpl-str-symm.wvr.c[2303,2316] [2022-12-12 00:15:13,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:15:13,836 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 00:15:13,872 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-simpl-str-symm.wvr.c[2303,2316] [2022-12-12 00:15:13,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:15:13,890 INFO L208 MainTranslator]: Completed translation [2022-12-12 00:15:13,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13 WrapperNode [2022-12-12 00:15:13,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 00:15:13,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 00:15:13,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 00:15:13,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 00:15:13,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,927 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 122 [2022-12-12 00:15:13,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 00:15:13,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 00:15:13,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 00:15:13,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 00:15:13,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 00:15:13,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 00:15:13,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 00:15:13,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 00:15:13,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (1/1) ... [2022-12-12 00:15:13,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:15:13,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:15:13,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 00:15:13,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 00:15:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 00:15:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 00:15:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 00:15:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 00:15:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 00:15:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 00:15:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 00:15:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 00:15:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 00:15:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 00:15:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 00:15:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 00:15:14,041 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 00:15:14,223 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 00:15:14,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 00:15:14,629 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 00:15:14,636 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 00:15:14,636 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 00:15:14,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:15:14 BoogieIcfgContainer [2022-12-12 00:15:14,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 00:15:14,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 00:15:14,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 00:15:14,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 00:15:14,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:15:13" (1/3) ... [2022-12-12 00:15:14,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330a721a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:15:14, skipping insertion in model container [2022-12-12 00:15:14,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:15:13" (2/3) ... [2022-12-12 00:15:14,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330a721a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:15:14, skipping insertion in model container [2022-12-12 00:15:14,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:15:14" (3/3) ... [2022-12-12 00:15:14,644 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2022-12-12 00:15:14,658 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 00:15:14,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 00:15:14,659 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 00:15:14,716 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 00:15:14,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 145 transitions, 306 flow [2022-12-12 00:15:14,822 INFO L130 PetriNetUnfolder]: 11/143 cut-off events. [2022-12-12 00:15:14,823 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 00:15:14,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 143 events. 11/143 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 209 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-12 00:15:14,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 145 transitions, 306 flow [2022-12-12 00:15:14,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 135 transitions, 282 flow [2022-12-12 00:15:14,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 00:15:14,852 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;@2c21169b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 00:15:14,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 00:15:14,893 INFO L130 PetriNetUnfolder]: 11/134 cut-off events. [2022-12-12 00:15:14,893 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 00:15:14,894 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:14,894 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:14,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:14,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:14,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1794281034, now seen corresponding path program 1 times [2022-12-12 00:15:14,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:14,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012482612] [2022-12-12 00:15:14,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:14,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:15,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:15,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012482612] [2022-12-12 00:15:15,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012482612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:15,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:15,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:15,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591155728] [2022-12-12 00:15:15,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:15,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:15,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:15,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:15,763 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:15,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 135 transitions, 282 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:15,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:15,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:15,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:16,378 INFO L130 PetriNetUnfolder]: 156/798 cut-off events. [2022-12-12 00:15:16,378 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-12-12 00:15:16,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 798 events. 156/798 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5353 event pairs, 24 based on Foata normal form. 44/766 useless extension candidates. Maximal degree in co-relation 907. Up to 78 conditions per place. [2022-12-12 00:15:16,388 INFO L137 encePairwiseOnDemand]: 116/145 looper letters, 110 selfloop transitions, 32 changer transitions 50/279 dead transitions. [2022-12-12 00:15:16,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 279 transitions, 996 flow [2022-12-12 00:15:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-12 00:15:16,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-12 00:15:16,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2823 transitions. [2022-12-12 00:15:16,439 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7210727969348659 [2022-12-12 00:15:16,445 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 26 predicate places. [2022-12-12 00:15:16,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 279 transitions, 996 flow [2022-12-12 00:15:16,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 229 transitions, 781 flow [2022-12-12 00:15:16,452 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 229 transitions, 781 flow [2022-12-12 00:15:16,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:16,453 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:16,454 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:16,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 00:15:16,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:16,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:16,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2100184708, now seen corresponding path program 2 times [2022-12-12 00:15:16,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:16,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620878425] [2022-12-12 00:15:16,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:16,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:16,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:16,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620878425] [2022-12-12 00:15:16,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620878425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:16,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:16,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502523086] [2022-12-12 00:15:16,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:16,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:16,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:16,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:16,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:16,757 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:16,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 229 transitions, 781 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:16,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:16,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:16,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:17,133 INFO L130 PetriNetUnfolder]: 203/1054 cut-off events. [2022-12-12 00:15:17,133 INFO L131 PetriNetUnfolder]: For 358/646 co-relation queries the response was YES. [2022-12-12 00:15:17,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2232 conditions, 1054 events. 203/1054 cut-off events. For 358/646 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7159 event pairs, 21 based on Foata normal form. 11/993 useless extension candidates. Maximal degree in co-relation 1557. Up to 255 conditions per place. [2022-12-12 00:15:17,137 INFO L137 encePairwiseOnDemand]: 129/145 looper letters, 229 selfloop transitions, 33 changer transitions 21/370 dead transitions. [2022-12-12 00:15:17,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 370 transitions, 1953 flow [2022-12-12 00:15:17,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 00:15:17,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 00:15:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1358 transitions. [2022-12-12 00:15:17,140 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7204244031830239 [2022-12-12 00:15:17,141 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 23 predicate places. [2022-12-12 00:15:17,141 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 370 transitions, 1953 flow [2022-12-12 00:15:17,146 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 349 transitions, 1818 flow [2022-12-12 00:15:17,146 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 349 transitions, 1818 flow [2022-12-12 00:15:17,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:17,147 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:17,147 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:17,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 00:15:17,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:17,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:17,148 INFO L85 PathProgramCache]: Analyzing trace with hash -383735852, now seen corresponding path program 3 times [2022-12-12 00:15:17,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:17,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76693466] [2022-12-12 00:15:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:17,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:17,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:17,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76693466] [2022-12-12 00:15:17,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76693466] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:17,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:17,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:17,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956134262] [2022-12-12 00:15:17,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:17,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:17,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:17,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:17,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:17,312 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:17,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 349 transitions, 1818 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:17,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:17,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:17,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:17,655 INFO L130 PetriNetUnfolder]: 203/1128 cut-off events. [2022-12-12 00:15:17,656 INFO L131 PetriNetUnfolder]: For 801/1729 co-relation queries the response was YES. [2022-12-12 00:15:17,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2990 conditions, 1128 events. 203/1128 cut-off events. For 801/1729 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7903 event pairs, 19 based on Foata normal form. 21/1079 useless extension candidates. Maximal degree in co-relation 2015. Up to 286 conditions per place. [2022-12-12 00:15:17,661 INFO L137 encePairwiseOnDemand]: 128/145 looper letters, 290 selfloop transitions, 25 changer transitions 25/427 dead transitions. [2022-12-12 00:15:17,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 427 transitions, 2993 flow [2022-12-12 00:15:17,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:17,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1577 transitions. [2022-12-12 00:15:17,665 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7250574712643678 [2022-12-12 00:15:17,665 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 32 predicate places. [2022-12-12 00:15:17,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 427 transitions, 2993 flow [2022-12-12 00:15:17,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 402 transitions, 2784 flow [2022-12-12 00:15:17,671 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 402 transitions, 2784 flow [2022-12-12 00:15:17,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:17,671 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:17,672 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:17,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 00:15:17,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:17,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:17,672 INFO L85 PathProgramCache]: Analyzing trace with hash -3193018, now seen corresponding path program 4 times [2022-12-12 00:15:17,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:17,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050169927] [2022-12-12 00:15:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:17,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:17,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:17,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050169927] [2022-12-12 00:15:17,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050169927] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:17,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:17,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:17,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15958915] [2022-12-12 00:15:17,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:17,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:17,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:17,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:17,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:17,865 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:17,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 402 transitions, 2784 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:17,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:17,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:17,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:18,210 INFO L130 PetriNetUnfolder]: 213/1210 cut-off events. [2022-12-12 00:15:18,211 INFO L131 PetriNetUnfolder]: For 1522/3186 co-relation queries the response was YES. [2022-12-12 00:15:18,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3836 conditions, 1210 events. 213/1210 cut-off events. For 1522/3186 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8744 event pairs, 22 based on Foata normal form. 31/1169 useless extension candidates. Maximal degree in co-relation 2782. Up to 286 conditions per place. [2022-12-12 00:15:18,217 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 307 selfloop transitions, 37 changer transitions 23/454 dead transitions. [2022-12-12 00:15:18,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 454 transitions, 3955 flow [2022-12-12 00:15:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 00:15:18,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 00:15:18,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1465 transitions. [2022-12-12 00:15:18,221 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7216748768472906 [2022-12-12 00:15:18,221 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 37 predicate places. [2022-12-12 00:15:18,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 454 transitions, 3955 flow [2022-12-12 00:15:18,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 431 transitions, 3713 flow [2022-12-12 00:15:18,229 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 431 transitions, 3713 flow [2022-12-12 00:15:18,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:18,229 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:18,229 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:18,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 00:15:18,230 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:18,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:18,230 INFO L85 PathProgramCache]: Analyzing trace with hash -91670902, now seen corresponding path program 5 times [2022-12-12 00:15:18,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:18,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013753114] [2022-12-12 00:15:18,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:18,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:18,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:18,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013753114] [2022-12-12 00:15:18,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013753114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:18,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:18,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:18,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992072462] [2022-12-12 00:15:18,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:18,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:18,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:18,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:18,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:18,431 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:18,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 431 transitions, 3713 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:18,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:18,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:18,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:18,853 INFO L130 PetriNetUnfolder]: 212/1234 cut-off events. [2022-12-12 00:15:18,853 INFO L131 PetriNetUnfolder]: For 2435/5077 co-relation queries the response was YES. [2022-12-12 00:15:18,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4581 conditions, 1234 events. 212/1234 cut-off events. For 2435/5077 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8959 event pairs, 27 based on Foata normal form. 36/1200 useless extension candidates. Maximal degree in co-relation 2948. Up to 296 conditions per place. [2022-12-12 00:15:18,860 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 325 selfloop transitions, 34 changer transitions 25/471 dead transitions. [2022-12-12 00:15:18,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 471 transitions, 4899 flow [2022-12-12 00:15:18,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:18,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1566 transitions. [2022-12-12 00:15:18,863 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.72 [2022-12-12 00:15:18,863 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 45 predicate places. [2022-12-12 00:15:18,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 471 transitions, 4899 flow [2022-12-12 00:15:18,871 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 446 transitions, 4590 flow [2022-12-12 00:15:18,872 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 446 transitions, 4590 flow [2022-12-12 00:15:18,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:18,873 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:18,873 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:18,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 00:15:18,873 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:18,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:18,874 INFO L85 PathProgramCache]: Analyzing trace with hash -562121810, now seen corresponding path program 6 times [2022-12-12 00:15:18,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:18,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127410476] [2022-12-12 00:15:18,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:18,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:19,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:19,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:19,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127410476] [2022-12-12 00:15:19,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127410476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:19,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:19,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:19,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027732310] [2022-12-12 00:15:19,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:19,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:19,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:19,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:19,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:19,059 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:19,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 446 transitions, 4590 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:19,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:19,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:19,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:19,473 INFO L130 PetriNetUnfolder]: 208/1184 cut-off events. [2022-12-12 00:15:19,473 INFO L131 PetriNetUnfolder]: For 3371/6341 co-relation queries the response was YES. [2022-12-12 00:15:19,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5017 conditions, 1184 events. 208/1184 cut-off events. For 3371/6341 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8440 event pairs, 21 based on Foata normal form. 36/1151 useless extension candidates. Maximal degree in co-relation 3266. Up to 286 conditions per place. [2022-12-12 00:15:19,481 INFO L137 encePairwiseOnDemand]: 131/145 looper letters, 304 selfloop transitions, 30 changer transitions 24/445 dead transitions. [2022-12-12 00:15:19,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 445 transitions, 5294 flow [2022-12-12 00:15:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 00:15:19,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 00:15:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1449 transitions. [2022-12-12 00:15:19,485 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7137931034482758 [2022-12-12 00:15:19,487 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 50 predicate places. [2022-12-12 00:15:19,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 445 transitions, 5294 flow [2022-12-12 00:15:19,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 421 transitions, 4949 flow [2022-12-12 00:15:19,527 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 421 transitions, 4949 flow [2022-12-12 00:15:19,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:19,528 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:19,528 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:19,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 00:15:19,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:19,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1478431474, now seen corresponding path program 7 times [2022-12-12 00:15:19,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:19,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553258097] [2022-12-12 00:15:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:19,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:19,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:19,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553258097] [2022-12-12 00:15:19,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553258097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:19,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:19,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:19,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636592962] [2022-12-12 00:15:19,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:19,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:19,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:19,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:19,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:19,701 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:19,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 421 transitions, 4949 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:19,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:19,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:19,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:20,018 INFO L130 PetriNetUnfolder]: 204/1185 cut-off events. [2022-12-12 00:15:20,019 INFO L131 PetriNetUnfolder]: For 4665/8365 co-relation queries the response was YES. [2022-12-12 00:15:20,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5578 conditions, 1185 events. 204/1185 cut-off events. For 4665/8365 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 8487 event pairs, 21 based on Foata normal form. 26/1143 useless extension candidates. Maximal degree in co-relation 3624. Up to 286 conditions per place. [2022-12-12 00:15:20,027 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 298 selfloop transitions, 29 changer transitions 23/437 dead transitions. [2022-12-12 00:15:20,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 437 transitions, 5879 flow [2022-12-12 00:15:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 00:15:20,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 00:15:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1365 transitions. [2022-12-12 00:15:20,030 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2022-12-12 00:15:20,031 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 53 predicate places. [2022-12-12 00:15:20,031 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 437 transitions, 5879 flow [2022-12-12 00:15:20,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 414 transitions, 5502 flow [2022-12-12 00:15:20,039 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 414 transitions, 5502 flow [2022-12-12 00:15:20,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:20,040 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:20,040 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:20,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 00:15:20,040 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:20,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2066846718, now seen corresponding path program 8 times [2022-12-12 00:15:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:20,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392422177] [2022-12-12 00:15:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:20,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:20,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392422177] [2022-12-12 00:15:20,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392422177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:20,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:20,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:20,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81656421] [2022-12-12 00:15:20,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:20,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:20,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:20,199 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:20,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 414 transitions, 5502 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:20,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:20,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:20,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:20,634 INFO L130 PetriNetUnfolder]: 241/1426 cut-off events. [2022-12-12 00:15:20,634 INFO L131 PetriNetUnfolder]: For 6468/10376 co-relation queries the response was YES. [2022-12-12 00:15:20,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7486 conditions, 1426 events. 241/1426 cut-off events. For 6468/10376 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10445 event pairs, 15 based on Foata normal form. 53/1398 useless extension candidates. Maximal degree in co-relation 4789. Up to 382 conditions per place. [2022-12-12 00:15:20,642 INFO L137 encePairwiseOnDemand]: 124/145 looper letters, 349 selfloop transitions, 76 changer transitions 26/538 dead transitions. [2022-12-12 00:15:20,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 538 transitions, 8439 flow [2022-12-12 00:15:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 00:15:20,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 00:15:20,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1698 transitions. [2022-12-12 00:15:20,645 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7318965517241379 [2022-12-12 00:15:20,645 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 61 predicate places. [2022-12-12 00:15:20,645 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 538 transitions, 8439 flow [2022-12-12 00:15:20,654 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 512 transitions, 7962 flow [2022-12-12 00:15:20,654 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 512 transitions, 7962 flow [2022-12-12 00:15:20,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:20,655 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:20,655 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:20,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 00:15:20,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:20,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2011756712, now seen corresponding path program 9 times [2022-12-12 00:15:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:20,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846020001] [2022-12-12 00:15:20,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:20,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:20,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:20,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846020001] [2022-12-12 00:15:20,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846020001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:20,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:20,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:20,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499056714] [2022-12-12 00:15:20,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:20,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:20,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:20,836 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:20,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 512 transitions, 7962 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:20,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:20,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:20,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:21,204 INFO L130 PetriNetUnfolder]: 237/1426 cut-off events. [2022-12-12 00:15:21,204 INFO L131 PetriNetUnfolder]: For 7347/10429 co-relation queries the response was YES. [2022-12-12 00:15:21,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8159 conditions, 1426 events. 237/1426 cut-off events. For 7347/10429 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 10434 event pairs, 12 based on Foata normal form. 41/1388 useless extension candidates. Maximal degree in co-relation 5180. Up to 382 conditions per place. [2022-12-12 00:15:21,213 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 392 selfloop transitions, 29 changer transitions 22/530 dead transitions. [2022-12-12 00:15:21,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 530 transitions, 9181 flow [2022-12-12 00:15:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 00:15:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 00:15:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1463 transitions. [2022-12-12 00:15:21,215 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7206896551724138 [2022-12-12 00:15:21,215 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 65 predicate places. [2022-12-12 00:15:21,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 530 transitions, 9181 flow [2022-12-12 00:15:21,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 508 transitions, 8732 flow [2022-12-12 00:15:21,226 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 508 transitions, 8732 flow [2022-12-12 00:15:21,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:21,226 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:21,227 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:21,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 00:15:21,227 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:21,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:21,227 INFO L85 PathProgramCache]: Analyzing trace with hash -722115794, now seen corresponding path program 10 times [2022-12-12 00:15:21,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:21,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250960083] [2022-12-12 00:15:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:21,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:21,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:21,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250960083] [2022-12-12 00:15:21,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250960083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:21,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:21,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:21,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982369762] [2022-12-12 00:15:21,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:21,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:21,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:21,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:21,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:21,387 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:21,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 508 transitions, 8732 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:21,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:21,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:21,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:21,752 INFO L130 PetriNetUnfolder]: 235/1383 cut-off events. [2022-12-12 00:15:21,752 INFO L131 PetriNetUnfolder]: For 9036/12810 co-relation queries the response was YES. [2022-12-12 00:15:21,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8814 conditions, 1383 events. 235/1383 cut-off events. For 9036/12810 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 10016 event pairs, 13 based on Foata normal form. 53/1357 useless extension candidates. Maximal degree in co-relation 5767. Up to 382 conditions per place. [2022-12-12 00:15:21,759 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 387 selfloop transitions, 23 changer transitions 28/525 dead transitions. [2022-12-12 00:15:21,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 525 transitions, 9960 flow [2022-12-12 00:15:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1572 transitions. [2022-12-12 00:15:21,762 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7227586206896551 [2022-12-12 00:15:21,762 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 73 predicate places. [2022-12-12 00:15:21,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 525 transitions, 9960 flow [2022-12-12 00:15:21,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 497 transitions, 9329 flow [2022-12-12 00:15:21,771 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 497 transitions, 9329 flow [2022-12-12 00:15:21,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:21,771 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:21,771 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:21,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 00:15:21,772 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:21,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1893104322, now seen corresponding path program 11 times [2022-12-12 00:15:21,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:21,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776210193] [2022-12-12 00:15:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:21,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:21,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:21,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:21,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776210193] [2022-12-12 00:15:21,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776210193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:21,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:21,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:21,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328655407] [2022-12-12 00:15:21,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:21,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:21,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:21,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:21,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:21,929 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 145 [2022-12-12 00:15:21,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 497 transitions, 9329 flow. Second operand has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:21,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:21,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 145 [2022-12-12 00:15:21,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:22,280 INFO L130 PetriNetUnfolder]: 229/1353 cut-off events. [2022-12-12 00:15:22,280 INFO L131 PetriNetUnfolder]: For 10857/15341 co-relation queries the response was YES. [2022-12-12 00:15:22,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9160 conditions, 1353 events. 229/1353 cut-off events. For 10857/15341 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 9618 event pairs, 9 based on Foata normal form. 43/1319 useless extension candidates. Maximal degree in co-relation 5864. Up to 382 conditions per place. [2022-12-12 00:15:22,288 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 366 selfloop transitions, 17 changer transitions 26/496 dead transitions. [2022-12-12 00:15:22,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 496 transitions, 10125 flow [2022-12-12 00:15:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 00:15:22,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 00:15:22,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1359 transitions. [2022-12-12 00:15:22,290 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7209549071618037 [2022-12-12 00:15:22,290 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 73 predicate places. [2022-12-12 00:15:22,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 496 transitions, 10125 flow [2022-12-12 00:15:22,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 470 transitions, 9489 flow [2022-12-12 00:15:22,298 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 470 transitions, 9489 flow [2022-12-12 00:15:22,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:22,299 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:22,299 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:22,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 00:15:22,299 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:22,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:22,300 INFO L85 PathProgramCache]: Analyzing trace with hash 522901243, now seen corresponding path program 1 times [2022-12-12 00:15:22,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:22,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354970399] [2022-12-12 00:15:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:22,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:22,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:22,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354970399] [2022-12-12 00:15:22,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354970399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:22,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:22,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:22,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067607755] [2022-12-12 00:15:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:22,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:22,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:22,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:22,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:22,439 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:22,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 470 transitions, 9489 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:22,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:22,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:22,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:22,868 INFO L130 PetriNetUnfolder]: 356/1752 cut-off events. [2022-12-12 00:15:22,868 INFO L131 PetriNetUnfolder]: For 20195/25334 co-relation queries the response was YES. [2022-12-12 00:15:22,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12684 conditions, 1752 events. 356/1752 cut-off events. For 20195/25334 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13292 event pairs, 35 based on Foata normal form. 28/1682 useless extension candidates. Maximal degree in co-relation 8185. Up to 666 conditions per place. [2022-12-12 00:15:22,880 INFO L137 encePairwiseOnDemand]: 128/145 looper letters, 387 selfloop transitions, 51 changer transitions 28/580 dead transitions. [2022-12-12 00:15:22,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 580 transitions, 12858 flow [2022-12-12 00:15:22,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 00:15:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 00:15:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1904 transitions. [2022-12-12 00:15:22,882 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7295019157088123 [2022-12-12 00:15:22,882 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 67 predicate places. [2022-12-12 00:15:22,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 580 transitions, 12858 flow [2022-12-12 00:15:22,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 552 transitions, 12200 flow [2022-12-12 00:15:22,893 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 552 transitions, 12200 flow [2022-12-12 00:15:22,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:22,894 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:22,894 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:22,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 00:15:22,894 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:22,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:22,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1832498617, now seen corresponding path program 2 times [2022-12-12 00:15:22,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:22,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380499963] [2022-12-12 00:15:22,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:22,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:23,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:23,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380499963] [2022-12-12 00:15:23,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380499963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:23,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:23,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:23,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563776833] [2022-12-12 00:15:23,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:23,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:23,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:23,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:23,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:23,020 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:23,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 552 transitions, 12200 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:23,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:23,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:23,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:23,353 INFO L130 PetriNetUnfolder]: 247/1376 cut-off events. [2022-12-12 00:15:23,353 INFO L131 PetriNetUnfolder]: For 16955/21367 co-relation queries the response was YES. [2022-12-12 00:15:23,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10293 conditions, 1376 events. 247/1376 cut-off events. For 16955/21367 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9853 event pairs, 19 based on Foata normal form. 24/1345 useless extension candidates. Maximal degree in co-relation 6582. Up to 495 conditions per place. [2022-12-12 00:15:23,362 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 345 selfloop transitions, 44 changer transitions 22/521 dead transitions. [2022-12-12 00:15:23,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 521 transitions, 12104 flow [2022-12-12 00:15:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 00:15:23,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 00:15:23,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1490 transitions. [2022-12-12 00:15:23,364 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7339901477832512 [2022-12-12 00:15:23,365 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 61 predicate places. [2022-12-12 00:15:23,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 521 transitions, 12104 flow [2022-12-12 00:15:23,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 499 transitions, 11520 flow [2022-12-12 00:15:23,376 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 499 transitions, 11520 flow [2022-12-12 00:15:23,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:23,377 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:23,377 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:23,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-12 00:15:23,377 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:23,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:23,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1601394821, now seen corresponding path program 3 times [2022-12-12 00:15:23,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:23,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196752213] [2022-12-12 00:15:23,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:23,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:23,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:23,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:23,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196752213] [2022-12-12 00:15:23,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196752213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:23,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:23,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:23,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751584056] [2022-12-12 00:15:23,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:23,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:23,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:23,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:23,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:23,533 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:23,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 499 transitions, 11520 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:23,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:23,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:23,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:23,956 INFO L130 PetriNetUnfolder]: 247/1396 cut-off events. [2022-12-12 00:15:23,956 INFO L131 PetriNetUnfolder]: For 20185/25031 co-relation queries the response was YES. [2022-12-12 00:15:23,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11294 conditions, 1396 events. 247/1396 cut-off events. For 20185/25031 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 10139 event pairs, 18 based on Foata normal form. 47/1387 useless extension candidates. Maximal degree in co-relation 6934. Up to 527 conditions per place. [2022-12-12 00:15:23,964 INFO L137 encePairwiseOnDemand]: 127/145 looper letters, 341 selfloop transitions, 64 changer transitions 37/552 dead transitions. [2022-12-12 00:15:23,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 552 transitions, 13635 flow [2022-12-12 00:15:23,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 00:15:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 00:15:23,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2009 transitions. [2022-12-12 00:15:23,967 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7292196007259528 [2022-12-12 00:15:23,967 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 73 predicate places. [2022-12-12 00:15:23,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 552 transitions, 13635 flow [2022-12-12 00:15:23,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 515 transitions, 12583 flow [2022-12-12 00:15:23,979 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 515 transitions, 12583 flow [2022-12-12 00:15:23,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:23,980 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:23,980 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:23,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-12 00:15:23,980 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:23,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:23,981 INFO L85 PathProgramCache]: Analyzing trace with hash -932231177, now seen corresponding path program 4 times [2022-12-12 00:15:23,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:23,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181381156] [2022-12-12 00:15:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:23,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:24,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:24,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181381156] [2022-12-12 00:15:24,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181381156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:24,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:24,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:24,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125369290] [2022-12-12 00:15:24,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:24,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:24,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:24,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:24,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:24,115 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:24,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 515 transitions, 12583 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:24,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:24,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:24,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:24,585 INFO L130 PetriNetUnfolder]: 236/1370 cut-off events. [2022-12-12 00:15:24,585 INFO L131 PetriNetUnfolder]: For 21112/24952 co-relation queries the response was YES. [2022-12-12 00:15:24,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11661 conditions, 1370 events. 236/1370 cut-off events. For 21112/24952 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 9915 event pairs, 16 based on Foata normal form. 20/1335 useless extension candidates. Maximal degree in co-relation 7137. Up to 594 conditions per place. [2022-12-12 00:15:24,593 INFO L137 encePairwiseOnDemand]: 133/145 looper letters, 373 selfloop transitions, 29 changer transitions 25/537 dead transitions. [2022-12-12 00:15:24,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 537 transitions, 14068 flow [2022-12-12 00:15:24,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 00:15:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 00:15:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1769 transitions. [2022-12-12 00:15:24,597 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7176470588235294 [2022-12-12 00:15:24,597 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 75 predicate places. [2022-12-12 00:15:24,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 537 transitions, 14068 flow [2022-12-12 00:15:24,607 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 512 transitions, 13297 flow [2022-12-12 00:15:24,607 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 512 transitions, 13297 flow [2022-12-12 00:15:24,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:24,608 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:24,608 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:24,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-12 00:15:24,608 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:24,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:24,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1996644305, now seen corresponding path program 5 times [2022-12-12 00:15:24,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:24,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196933972] [2022-12-12 00:15:24,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:24,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:24,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:24,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196933972] [2022-12-12 00:15:24,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196933972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:24,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:24,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:24,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255090280] [2022-12-12 00:15:24,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:24,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:24,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:24,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:24,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:24,765 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:24,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 512 transitions, 13297 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:24,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:24,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:24,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:25,106 INFO L130 PetriNetUnfolder]: 231/1349 cut-off events. [2022-12-12 00:15:25,106 INFO L131 PetriNetUnfolder]: For 23521/27920 co-relation queries the response was YES. [2022-12-12 00:15:25,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12171 conditions, 1349 events. 231/1349 cut-off events. For 23521/27920 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9640 event pairs, 16 based on Foata normal form. 23/1317 useless extension candidates. Maximal degree in co-relation 7449. Up to 606 conditions per place. [2022-12-12 00:15:25,114 INFO L137 encePairwiseOnDemand]: 128/145 looper letters, 349 selfloop transitions, 50 changer transitions 21/530 dead transitions. [2022-12-12 00:15:25,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 530 transitions, 14681 flow [2022-12-12 00:15:25,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:25,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1582 transitions. [2022-12-12 00:15:25,118 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7273563218390805 [2022-12-12 00:15:25,119 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 79 predicate places. [2022-12-12 00:15:25,119 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 530 transitions, 14681 flow [2022-12-12 00:15:25,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 509 transitions, 13999 flow [2022-12-12 00:15:25,130 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 509 transitions, 13999 flow [2022-12-12 00:15:25,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:25,130 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:25,130 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:25,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-12 00:15:25,131 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:25,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:25,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2139979209, now seen corresponding path program 6 times [2022-12-12 00:15:25,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:25,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477044901] [2022-12-12 00:15:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:25,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:25,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:25,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477044901] [2022-12-12 00:15:25,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477044901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:25,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:25,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:25,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474374515] [2022-12-12 00:15:25,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:25,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:25,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:25,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:25,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:25,288 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:25,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 509 transitions, 13999 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:25,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:25,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:25,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:25,720 INFO L130 PetriNetUnfolder]: 225/1304 cut-off events. [2022-12-12 00:15:25,720 INFO L131 PetriNetUnfolder]: For 25392/31053 co-relation queries the response was YES. [2022-12-12 00:15:25,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12325 conditions, 1304 events. 225/1304 cut-off events. For 25392/31053 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 9195 event pairs, 18 based on Foata normal form. 15/1266 useless extension candidates. Maximal degree in co-relation 7688. Up to 589 conditions per place. [2022-12-12 00:15:25,728 INFO L137 encePairwiseOnDemand]: 133/145 looper letters, 348 selfloop transitions, 17 changer transitions 29/504 dead transitions. [2022-12-12 00:15:25,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 504 transitions, 14617 flow [2022-12-12 00:15:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:25,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1555 transitions. [2022-12-12 00:15:25,735 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7149425287356321 [2022-12-12 00:15:25,736 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 86 predicate places. [2022-12-12 00:15:25,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 504 transitions, 14617 flow [2022-12-12 00:15:25,747 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 475 transitions, 13646 flow [2022-12-12 00:15:25,748 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 475 transitions, 13646 flow [2022-12-12 00:15:25,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:25,748 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:25,748 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:25,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-12 00:15:25,749 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash -697135539, now seen corresponding path program 7 times [2022-12-12 00:15:25,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:25,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835595575] [2022-12-12 00:15:25,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:25,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:25,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:25,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:25,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835595575] [2022-12-12 00:15:25,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835595575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:25,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:25,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:25,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402710615] [2022-12-12 00:15:25,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:25,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:25,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:25,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:25,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:25,890 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:25,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 475 transitions, 13646 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:25,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:25,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:25,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:26,267 INFO L130 PetriNetUnfolder]: 225/1318 cut-off events. [2022-12-12 00:15:26,267 INFO L131 PetriNetUnfolder]: For 28175/33237 co-relation queries the response was YES. [2022-12-12 00:15:26,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12981 conditions, 1318 events. 225/1318 cut-off events. For 28175/33237 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9319 event pairs, 17 based on Foata normal form. 30/1295 useless extension candidates. Maximal degree in co-relation 8847. Up to 603 conditions per place. [2022-12-12 00:15:26,281 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 329 selfloop transitions, 33 changer transitions 31/501 dead transitions. [2022-12-12 00:15:26,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 501 transitions, 15338 flow [2022-12-12 00:15:26,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 00:15:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 00:15:26,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1901 transitions. [2022-12-12 00:15:26,286 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7283524904214559 [2022-12-12 00:15:26,286 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 79 predicate places. [2022-12-12 00:15:26,286 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 501 transitions, 15338 flow [2022-12-12 00:15:26,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 470 transitions, 14258 flow [2022-12-12 00:15:26,299 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 470 transitions, 14258 flow [2022-12-12 00:15:26,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:26,299 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:26,299 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:26,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-12 00:15:26,299 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1586980301, now seen corresponding path program 8 times [2022-12-12 00:15:26,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:26,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723608573] [2022-12-12 00:15:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:26,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:26,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:26,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723608573] [2022-12-12 00:15:26,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723608573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:26,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:26,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:26,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237244954] [2022-12-12 00:15:26,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:26,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:26,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:26,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:26,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:26,430 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:26,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 470 transitions, 14258 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:26,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:26,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:26,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:26,775 INFO L130 PetriNetUnfolder]: 223/1280 cut-off events. [2022-12-12 00:15:26,776 INFO L131 PetriNetUnfolder]: For 30569/36390 co-relation queries the response was YES. [2022-12-12 00:15:26,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13563 conditions, 1280 events. 223/1280 cut-off events. For 30569/36390 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8874 event pairs, 18 based on Foata normal form. 13/1236 useless extension candidates. Maximal degree in co-relation 8488. Up to 594 conditions per place. [2022-12-12 00:15:26,788 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 340 selfloop transitions, 34 changer transitions 24/506 dead transitions. [2022-12-12 00:15:26,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 506 transitions, 16346 flow [2022-12-12 00:15:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:26,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1582 transitions. [2022-12-12 00:15:26,791 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7273563218390805 [2022-12-12 00:15:26,791 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 81 predicate places. [2022-12-12 00:15:26,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 506 transitions, 16346 flow [2022-12-12 00:15:26,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 482 transitions, 15440 flow [2022-12-12 00:15:26,803 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 482 transitions, 15440 flow [2022-12-12 00:15:26,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:26,803 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:26,804 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:26,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-12 00:15:26,804 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:26,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:26,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2024912427, now seen corresponding path program 9 times [2022-12-12 00:15:26,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:26,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514179375] [2022-12-12 00:15:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:26,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:26,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:26,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514179375] [2022-12-12 00:15:26,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514179375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:26,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:26,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:26,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796595393] [2022-12-12 00:15:26,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:26,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:26,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:26,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:26,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:26,961 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:26,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 482 transitions, 15440 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:26,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:26,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:26,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:27,391 INFO L130 PetriNetUnfolder]: 226/1321 cut-off events. [2022-12-12 00:15:27,391 INFO L131 PetriNetUnfolder]: For 35218/41835 co-relation queries the response was YES. [2022-12-12 00:15:27,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14482 conditions, 1321 events. 226/1321 cut-off events. For 35218/41835 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9315 event pairs, 17 based on Foata normal form. 25/1291 useless extension candidates. Maximal degree in co-relation 8945. Up to 610 conditions per place. [2022-12-12 00:15:27,403 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 345 selfloop transitions, 31 changer transitions 26/510 dead transitions. [2022-12-12 00:15:27,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 510 transitions, 17319 flow [2022-12-12 00:15:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 00:15:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 00:15:27,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1784 transitions. [2022-12-12 00:15:27,406 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7237322515212982 [2022-12-12 00:15:27,407 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 91 predicate places. [2022-12-12 00:15:27,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 510 transitions, 17319 flow [2022-12-12 00:15:27,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 484 transitions, 16256 flow [2022-12-12 00:15:27,421 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 484 transitions, 16256 flow [2022-12-12 00:15:27,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:27,421 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:27,421 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:27,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-12 00:15:27,421 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:27,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:27,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1824388863, now seen corresponding path program 10 times [2022-12-12 00:15:27,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:27,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825110404] [2022-12-12 00:15:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:27,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:27,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825110404] [2022-12-12 00:15:27,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825110404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:27,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:27,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:27,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188101282] [2022-12-12 00:15:27,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:27,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:27,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:27,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:27,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:27,558 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:27,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 484 transitions, 16256 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:27,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:27,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:27,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:27,941 INFO L130 PetriNetUnfolder]: 217/1297 cut-off events. [2022-12-12 00:15:27,941 INFO L131 PetriNetUnfolder]: For 38451/46795 co-relation queries the response was YES. [2022-12-12 00:15:27,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14700 conditions, 1297 events. 217/1297 cut-off events. For 38451/46795 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 9189 event pairs, 17 based on Foata normal form. 25/1270 useless extension candidates. Maximal degree in co-relation 9073. Up to 593 conditions per place. [2022-12-12 00:15:27,954 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 338 selfloop transitions, 22 changer transitions 27/494 dead transitions. [2022-12-12 00:15:27,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 494 transitions, 17457 flow [2022-12-12 00:15:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:27,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1575 transitions. [2022-12-12 00:15:27,956 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2022-12-12 00:15:27,957 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 95 predicate places. [2022-12-12 00:15:27,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 494 transitions, 17457 flow [2022-12-12 00:15:27,970 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 467 transitions, 16340 flow [2022-12-12 00:15:27,971 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 467 transitions, 16340 flow [2022-12-12 00:15:27,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:27,971 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:27,971 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:27,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-12 00:15:27,971 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:27,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:27,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1950018975, now seen corresponding path program 11 times [2022-12-12 00:15:27,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:27,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916916502] [2022-12-12 00:15:27,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:27,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:28,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:28,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916916502] [2022-12-12 00:15:28,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916916502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:28,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:28,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:28,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686744226] [2022-12-12 00:15:28,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:28,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:28,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:28,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:28,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:28,101 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:28,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 467 transitions, 16340 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:28,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:28,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:28,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:28,505 INFO L130 PetriNetUnfolder]: 215/1269 cut-off events. [2022-12-12 00:15:28,505 INFO L131 PetriNetUnfolder]: For 43003/52332 co-relation queries the response was YES. [2022-12-12 00:15:28,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15203 conditions, 1269 events. 215/1269 cut-off events. For 43003/52332 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 8872 event pairs, 18 based on Foata normal form. 63/1279 useless extension candidates. Maximal degree in co-relation 9379. Up to 589 conditions per place. [2022-12-12 00:15:28,514 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 328 selfloop transitions, 31 changer transitions 29/494 dead transitions. [2022-12-12 00:15:28,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 494 transitions, 18254 flow [2022-12-12 00:15:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 00:15:28,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 00:15:28,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2005 transitions. [2022-12-12 00:15:28,516 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7277676950998185 [2022-12-12 00:15:28,516 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 94 predicate places. [2022-12-12 00:15:28,516 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 494 transitions, 18254 flow [2022-12-12 00:15:28,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 465 transitions, 16996 flow [2022-12-12 00:15:28,526 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 465 transitions, 16996 flow [2022-12-12 00:15:28,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:28,526 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:28,527 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:28,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-12 00:15:28,527 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:28,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1081239593, now seen corresponding path program 12 times [2022-12-12 00:15:28,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:28,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745535482] [2022-12-12 00:15:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:28,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:28,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:28,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745535482] [2022-12-12 00:15:28,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745535482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:28,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:28,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:28,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633451039] [2022-12-12 00:15:28,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:28,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:28,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:28,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:28,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:28,651 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:28,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 465 transitions, 16996 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:28,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:28,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:28,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:29,053 INFO L130 PetriNetUnfolder]: 207/1235 cut-off events. [2022-12-12 00:15:29,054 INFO L131 PetriNetUnfolder]: For 40772/46491 co-relation queries the response was YES. [2022-12-12 00:15:29,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15448 conditions, 1235 events. 207/1235 cut-off events. For 40772/46491 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8594 event pairs, 19 based on Foata normal form. 30/1213 useless extension candidates. Maximal degree in co-relation 9432. Up to 579 conditions per place. [2022-12-12 00:15:29,063 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 329 selfloop transitions, 21 changer transitions 26/482 dead transitions. [2022-12-12 00:15:29,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 482 transitions, 18473 flow [2022-12-12 00:15:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 00:15:29,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 00:15:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1780 transitions. [2022-12-12 00:15:29,066 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7221095334685599 [2022-12-12 00:15:29,066 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 99 predicate places. [2022-12-12 00:15:29,066 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 482 transitions, 18473 flow [2022-12-12 00:15:29,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 456 transitions, 17279 flow [2022-12-12 00:15:29,077 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 456 transitions, 17279 flow [2022-12-12 00:15:29,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:29,078 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:29,078 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:29,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-12 00:15:29,079 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:29,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:29,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1262187665, now seen corresponding path program 13 times [2022-12-12 00:15:29,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:29,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426737466] [2022-12-12 00:15:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:29,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:29,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:29,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426737466] [2022-12-12 00:15:29,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426737466] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:29,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:29,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:29,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172472428] [2022-12-12 00:15:29,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:29,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:29,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:29,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:29,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:29,196 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:29,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 456 transitions, 17279 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:29,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:29,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:29,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:29,584 INFO L130 PetriNetUnfolder]: 205/1252 cut-off events. [2022-12-12 00:15:29,584 INFO L131 PetriNetUnfolder]: For 47552/54130 co-relation queries the response was YES. [2022-12-12 00:15:29,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16002 conditions, 1252 events. 205/1252 cut-off events. For 47552/54130 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8817 event pairs, 16 based on Foata normal form. 25/1223 useless extension candidates. Maximal degree in co-relation 9681. Up to 581 conditions per place. [2022-12-12 00:15:29,592 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 327 selfloop transitions, 18 changer transitions 27/478 dead transitions. [2022-12-12 00:15:29,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 478 transitions, 19050 flow [2022-12-12 00:15:29,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 00:15:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 00:15:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1689 transitions. [2022-12-12 00:15:29,595 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7280172413793103 [2022-12-12 00:15:29,596 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 99 predicate places. [2022-12-12 00:15:29,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 478 transitions, 19050 flow [2022-12-12 00:15:29,608 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 221 places, 451 transitions, 17726 flow [2022-12-12 00:15:29,608 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 451 transitions, 17726 flow [2022-12-12 00:15:29,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:29,609 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:29,609 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:29,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-12 00:15:29,609 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:29,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1886443613, now seen corresponding path program 14 times [2022-12-12 00:15:29,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:29,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068159429] [2022-12-12 00:15:29,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:29,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:29,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:29,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068159429] [2022-12-12 00:15:29,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068159429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:29,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:29,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348704617] [2022-12-12 00:15:29,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:29,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:29,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:29,728 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:29,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 451 transitions, 17726 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:29,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:29,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:29,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:30,115 INFO L130 PetriNetUnfolder]: 200/1228 cut-off events. [2022-12-12 00:15:30,115 INFO L131 PetriNetUnfolder]: For 48346/54689 co-relation queries the response was YES. [2022-12-12 00:15:30,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16329 conditions, 1228 events. 200/1228 cut-off events. For 48346/54689 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8543 event pairs, 18 based on Foata normal form. 36/1213 useless extension candidates. Maximal degree in co-relation 9873. Up to 573 conditions per place. [2022-12-12 00:15:30,126 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 321 selfloop transitions, 19 changer transitions 23/469 dead transitions. [2022-12-12 00:15:30,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 469 transitions, 19320 flow [2022-12-12 00:15:30,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1584 transitions. [2022-12-12 00:15:30,128 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7282758620689656 [2022-12-12 00:15:30,129 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 104 predicate places. [2022-12-12 00:15:30,129 INFO L82 GeneralOperation]: Start removeDead. Operand has 235 places, 469 transitions, 19320 flow [2022-12-12 00:15:30,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 446 transitions, 18153 flow [2022-12-12 00:15:30,140 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 446 transitions, 18153 flow [2022-12-12 00:15:30,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:30,140 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:30,141 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:30,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-12 00:15:30,141 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:30,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:30,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1753403969, now seen corresponding path program 15 times [2022-12-12 00:15:30,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:30,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326504255] [2022-12-12 00:15:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:30,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:30,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:30,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326504255] [2022-12-12 00:15:30,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326504255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:30,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:30,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:30,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606036950] [2022-12-12 00:15:30,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:30,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:30,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:30,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:30,262 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:30,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 446 transitions, 18153 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:30,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:30,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:30,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:30,668 INFO L130 PetriNetUnfolder]: 194/1160 cut-off events. [2022-12-12 00:15:30,668 INFO L131 PetriNetUnfolder]: For 50390/56452 co-relation queries the response was YES. [2022-12-12 00:15:30,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16100 conditions, 1160 events. 194/1160 cut-off events. For 50390/56452 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7793 event pairs, 18 based on Foata normal form. 24/1132 useless extension candidates. Maximal degree in co-relation 10491. Up to 546 conditions per place. [2022-12-12 00:15:30,679 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 300 selfloop transitions, 7 changer transitions 32/441 dead transitions. [2022-12-12 00:15:30,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 441 transitions, 18563 flow [2022-12-12 00:15:30,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 00:15:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 00:15:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1676 transitions. [2022-12-12 00:15:30,681 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7224137931034482 [2022-12-12 00:15:30,681 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 112 predicate places. [2022-12-12 00:15:30,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 441 transitions, 18563 flow [2022-12-12 00:15:30,692 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 409 transitions, 17006 flow [2022-12-12 00:15:30,693 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 409 transitions, 17006 flow [2022-12-12 00:15:30,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:30,693 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:30,693 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:30,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-12 00:15:30,694 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:30,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:30,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1867948255, now seen corresponding path program 1 times [2022-12-12 00:15:30,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:30,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144846559] [2022-12-12 00:15:30,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:30,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:30,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:30,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144846559] [2022-12-12 00:15:30,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144846559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:30,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:30,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:30,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513546060] [2022-12-12 00:15:30,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:30,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:30,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:30,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:30,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:30,896 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:30,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 409 transitions, 17006 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:30,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:30,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:30,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:31,410 INFO L130 PetriNetUnfolder]: 183/1075 cut-off events. [2022-12-12 00:15:31,411 INFO L131 PetriNetUnfolder]: For 45895/48511 co-relation queries the response was YES. [2022-12-12 00:15:31,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14094 conditions, 1075 events. 183/1075 cut-off events. For 45895/48511 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6861 event pairs, 27 based on Foata normal form. 34/1073 useless extension candidates. Maximal degree in co-relation 9198. Up to 494 conditions per place. [2022-12-12 00:15:31,418 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 157 selfloop transitions, 26 changer transitions 75/375 dead transitions. [2022-12-12 00:15:31,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 375 transitions, 15806 flow [2022-12-12 00:15:31,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 00:15:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 00:15:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1979 transitions. [2022-12-12 00:15:31,421 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7183303085299455 [2022-12-12 00:15:31,421 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 75 predicate places. [2022-12-12 00:15:31,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 375 transitions, 15806 flow [2022-12-12 00:15:31,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 300 transitions, 11712 flow [2022-12-12 00:15:31,428 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 300 transitions, 11712 flow [2022-12-12 00:15:31,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:31,428 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:31,428 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:31,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-12 00:15:31,429 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:31,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:31,429 INFO L85 PathProgramCache]: Analyzing trace with hash -960431765, now seen corresponding path program 2 times [2022-12-12 00:15:31,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:31,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741042736] [2022-12-12 00:15:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:31,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:31,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:31,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741042736] [2022-12-12 00:15:31,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741042736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:31,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:31,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:31,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511071240] [2022-12-12 00:15:31,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:31,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:31,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:31,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:31,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:31,560 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:31,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 300 transitions, 11712 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:31,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:31,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:31,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:31,872 INFO L130 PetriNetUnfolder]: 153/968 cut-off events. [2022-12-12 00:15:31,872 INFO L131 PetriNetUnfolder]: For 40753/42751 co-relation queries the response was YES. [2022-12-12 00:15:31,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12671 conditions, 968 events. 153/968 cut-off events. For 40753/42751 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5789 event pairs, 27 based on Foata normal form. 34/965 useless extension candidates. Maximal degree in co-relation 8287. Up to 431 conditions per place. [2022-12-12 00:15:31,881 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 153 selfloop transitions, 35 changer transitions 32/337 dead transitions. [2022-12-12 00:15:31,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 337 transitions, 14089 flow [2022-12-12 00:15:31,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 00:15:31,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 00:15:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1759 transitions. [2022-12-12 00:15:31,883 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7135902636916835 [2022-12-12 00:15:31,884 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 80 predicate places. [2022-12-12 00:15:31,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 337 transitions, 14089 flow [2022-12-12 00:15:31,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 305 transitions, 12319 flow [2022-12-12 00:15:31,894 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 305 transitions, 12319 flow [2022-12-12 00:15:31,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:31,894 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:31,895 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:31,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-12 00:15:31,895 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:31,895 INFO L85 PathProgramCache]: Analyzing trace with hash 12094977, now seen corresponding path program 3 times [2022-12-12 00:15:31,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:31,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599479264] [2022-12-12 00:15:31,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:31,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:32,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:32,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599479264] [2022-12-12 00:15:32,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599479264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:32,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:32,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:32,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245184981] [2022-12-12 00:15:32,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:32,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:32,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:32,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:32,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:32,014 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:32,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 305 transitions, 12319 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:32,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:32,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:32,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:32,284 INFO L130 PetriNetUnfolder]: 137/878 cut-off events. [2022-12-12 00:15:32,285 INFO L131 PetriNetUnfolder]: For 39059/40680 co-relation queries the response was YES. [2022-12-12 00:15:32,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11662 conditions, 878 events. 137/878 cut-off events. For 39059/40680 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4988 event pairs, 26 based on Foata normal form. 31/872 useless extension candidates. Maximal degree in co-relation 7865. Up to 384 conditions per place. [2022-12-12 00:15:32,292 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 133 selfloop transitions, 15 changer transitions 41/304 dead transitions. [2022-12-12 00:15:32,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 304 transitions, 12589 flow [2022-12-12 00:15:32,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 00:15:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 00:15:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1452 transitions. [2022-12-12 00:15:32,294 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7152709359605911 [2022-12-12 00:15:32,294 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 85 predicate places. [2022-12-12 00:15:32,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 304 transitions, 12589 flow [2022-12-12 00:15:32,301 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 263 transitions, 10224 flow [2022-12-12 00:15:32,301 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 263 transitions, 10224 flow [2022-12-12 00:15:32,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:32,302 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:32,302 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:32,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-12 00:15:32,302 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:32,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:32,302 INFO L85 PathProgramCache]: Analyzing trace with hash -619074605, now seen corresponding path program 4 times [2022-12-12 00:15:32,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:32,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160180477] [2022-12-12 00:15:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:32,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:32,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:32,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160180477] [2022-12-12 00:15:32,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160180477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:32,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:32,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:32,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114291056] [2022-12-12 00:15:32,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:32,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:32,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:32,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:32,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:32,411 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:32,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 263 transitions, 10224 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:32,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:32,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:32,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:32,680 INFO L130 PetriNetUnfolder]: 147/909 cut-off events. [2022-12-12 00:15:32,680 INFO L131 PetriNetUnfolder]: For 41639/43055 co-relation queries the response was YES. [2022-12-12 00:15:32,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12728 conditions, 909 events. 147/909 cut-off events. For 41639/43055 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5194 event pairs, 25 based on Foata normal form. 11/883 useless extension candidates. Maximal degree in co-relation 8468. Up to 408 conditions per place. [2022-12-12 00:15:32,686 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 167 selfloop transitions, 20 changer transitions 23/325 dead transitions. [2022-12-12 00:15:32,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 325 transitions, 13969 flow [2022-12-12 00:15:32,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 00:15:32,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 00:15:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1873 transitions. [2022-12-12 00:15:32,689 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.717624521072797 [2022-12-12 00:15:32,689 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 89 predicate places. [2022-12-12 00:15:32,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 325 transitions, 13969 flow [2022-12-12 00:15:32,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 208 places, 302 transitions, 12742 flow [2022-12-12 00:15:32,696 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 302 transitions, 12742 flow [2022-12-12 00:15:32,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:32,696 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:32,696 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:32,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-12 00:15:32,697 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:32,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:32,697 INFO L85 PathProgramCache]: Analyzing trace with hash 11262671, now seen corresponding path program 5 times [2022-12-12 00:15:32,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:32,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621120936] [2022-12-12 00:15:32,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:32,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:32,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:32,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621120936] [2022-12-12 00:15:32,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621120936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:32,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:32,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:32,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734359821] [2022-12-12 00:15:32,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:32,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:32,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:32,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:32,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:32,805 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:32,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 302 transitions, 12742 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:32,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:32,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:32,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:33,090 INFO L130 PetriNetUnfolder]: 149/912 cut-off events. [2022-12-12 00:15:33,090 INFO L131 PetriNetUnfolder]: For 41760/43109 co-relation queries the response was YES. [2022-12-12 00:15:33,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13402 conditions, 912 events. 149/912 cut-off events. For 41760/43109 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5176 event pairs, 26 based on Foata normal form. 17/896 useless extension candidates. Maximal degree in co-relation 9011. Up to 418 conditions per place. [2022-12-12 00:15:33,097 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 180 selfloop transitions, 23 changer transitions 20/338 dead transitions. [2022-12-12 00:15:33,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 338 transitions, 15169 flow [2022-12-12 00:15:33,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 00:15:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 00:15:33,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1660 transitions. [2022-12-12 00:15:33,099 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7155172413793104 [2022-12-12 00:15:33,099 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 92 predicate places. [2022-12-12 00:15:33,099 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 338 transitions, 15169 flow [2022-12-12 00:15:33,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 318 transitions, 13984 flow [2022-12-12 00:15:33,106 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 318 transitions, 13984 flow [2022-12-12 00:15:33,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:33,107 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:33,107 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:33,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-12 00:15:33,107 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:33,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:33,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1150883323, now seen corresponding path program 6 times [2022-12-12 00:15:33,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:33,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501075232] [2022-12-12 00:15:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:33,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:33,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:33,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501075232] [2022-12-12 00:15:33,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501075232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:33,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:33,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:33,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990303746] [2022-12-12 00:15:33,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:33,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:33,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:33,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:33,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:33,219 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:33,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 318 transitions, 13984 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:33,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:33,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:33,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:33,483 INFO L130 PetriNetUnfolder]: 146/920 cut-off events. [2022-12-12 00:15:33,483 INFO L131 PetriNetUnfolder]: For 45222/46549 co-relation queries the response was YES. [2022-12-12 00:15:33,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13526 conditions, 920 events. 146/920 cut-off events. For 45222/46549 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5290 event pairs, 29 based on Foata normal form. 16/900 useless extension candidates. Maximal degree in co-relation 9296. Up to 408 conditions per place. [2022-12-12 00:15:33,491 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 175 selfloop transitions, 24 changer transitions 17/331 dead transitions. [2022-12-12 00:15:33,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 331 transitions, 15153 flow [2022-12-12 00:15:33,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:33,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1556 transitions. [2022-12-12 00:15:33,493 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7154022988505747 [2022-12-12 00:15:33,493 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 97 predicate places. [2022-12-12 00:15:33,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 331 transitions, 15153 flow [2022-12-12 00:15:33,501 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 221 places, 314 transitions, 14126 flow [2022-12-12 00:15:33,501 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 314 transitions, 14126 flow [2022-12-12 00:15:33,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:33,501 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:33,501 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:33,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-12 00:15:33,501 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:33,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:33,502 INFO L85 PathProgramCache]: Analyzing trace with hash 499497823, now seen corresponding path program 7 times [2022-12-12 00:15:33,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:33,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139248055] [2022-12-12 00:15:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:33,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:33,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:33,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:33,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139248055] [2022-12-12 00:15:33,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139248055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:33,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:33,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:33,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023674545] [2022-12-12 00:15:33,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:33,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:33,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:33,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:33,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:33,607 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:33,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 314 transitions, 14126 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:33,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:33,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:33,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:33,908 INFO L130 PetriNetUnfolder]: 140/907 cut-off events. [2022-12-12 00:15:33,908 INFO L131 PetriNetUnfolder]: For 48507/49994 co-relation queries the response was YES. [2022-12-12 00:15:33,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13603 conditions, 907 events. 140/907 cut-off events. For 48507/49994 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5212 event pairs, 26 based on Foata normal form. 18/888 useless extension candidates. Maximal degree in co-relation 9256. Up to 399 conditions per place. [2022-12-12 00:15:33,915 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 172 selfloop transitions, 12 changer transitions 24/323 dead transitions. [2022-12-12 00:15:33,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 323 transitions, 15148 flow [2022-12-12 00:15:33,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 00:15:33,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 00:15:33,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1652 transitions. [2022-12-12 00:15:33,919 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7120689655172414 [2022-12-12 00:15:33,920 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 105 predicate places. [2022-12-12 00:15:33,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 323 transitions, 15148 flow [2022-12-12 00:15:33,928 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 299 transitions, 13657 flow [2022-12-12 00:15:33,928 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 299 transitions, 13657 flow [2022-12-12 00:15:33,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:33,929 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:33,929 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:33,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-12 00:15:33,929 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1833057967, now seen corresponding path program 8 times [2022-12-12 00:15:33,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:33,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162740840] [2022-12-12 00:15:33,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:33,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:34,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:34,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162740840] [2022-12-12 00:15:34,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162740840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:34,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:34,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:34,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848805395] [2022-12-12 00:15:34,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:34,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:34,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:34,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:34,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:34,047 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:34,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 299 transitions, 13657 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:34,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:34,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:34,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:34,318 INFO L130 PetriNetUnfolder]: 136/894 cut-off events. [2022-12-12 00:15:34,318 INFO L131 PetriNetUnfolder]: For 49947/51447 co-relation queries the response was YES. [2022-12-12 00:15:34,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13697 conditions, 894 events. 136/894 cut-off events. For 49947/51447 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5138 event pairs, 26 based on Foata normal form. 9/867 useless extension candidates. Maximal degree in co-relation 9335. Up to 392 conditions per place. [2022-12-12 00:15:34,325 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 161 selfloop transitions, 19 changer transitions 20/315 dead transitions. [2022-12-12 00:15:34,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 315 transitions, 15050 flow [2022-12-12 00:15:34,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 00:15:34,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 00:15:34,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1756 transitions. [2022-12-12 00:15:34,327 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7123732251521299 [2022-12-12 00:15:34,327 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 102 predicate places. [2022-12-12 00:15:34,327 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 315 transitions, 15050 flow [2022-12-12 00:15:34,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 295 transitions, 13745 flow [2022-12-12 00:15:34,335 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 295 transitions, 13745 flow [2022-12-12 00:15:34,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:34,335 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:34,335 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:34,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-12 00:15:34,335 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:34,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:34,336 INFO L85 PathProgramCache]: Analyzing trace with hash 783952399, now seen corresponding path program 9 times [2022-12-12 00:15:34,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:34,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331957394] [2022-12-12 00:15:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:34,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:34,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:34,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331957394] [2022-12-12 00:15:34,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331957394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:34,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:34,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:34,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329857167] [2022-12-12 00:15:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:34,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:34,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:34,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:34,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:34,441 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:34,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 295 transitions, 13745 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:34,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:34,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:34,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:34,691 INFO L130 PetriNetUnfolder]: 131/882 cut-off events. [2022-12-12 00:15:34,691 INFO L131 PetriNetUnfolder]: For 51752/53177 co-relation queries the response was YES. [2022-12-12 00:15:34,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13693 conditions, 882 events. 131/882 cut-off events. For 51752/53177 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5016 event pairs, 29 based on Foata normal form. 7/854 useless extension candidates. Maximal degree in co-relation 8798. Up to 380 conditions per place. [2022-12-12 00:15:34,698 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 156 selfloop transitions, 17 changer transitions 20/308 dead transitions. [2022-12-12 00:15:34,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 308 transitions, 14946 flow [2022-12-12 00:15:34,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1551 transitions. [2022-12-12 00:15:34,700 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.713103448275862 [2022-12-12 00:15:34,701 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 106 predicate places. [2022-12-12 00:15:34,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 237 places, 308 transitions, 14946 flow [2022-12-12 00:15:34,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 288 transitions, 13650 flow [2022-12-12 00:15:34,709 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 288 transitions, 13650 flow [2022-12-12 00:15:34,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:34,709 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:34,709 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:34,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-12 00:15:34,709 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:34,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:34,710 INFO L85 PathProgramCache]: Analyzing trace with hash 93235725, now seen corresponding path program 10 times [2022-12-12 00:15:34,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:34,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566299471] [2022-12-12 00:15:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:34,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:34,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:34,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566299471] [2022-12-12 00:15:34,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566299471] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:34,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:34,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:34,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214579401] [2022-12-12 00:15:34,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:34,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:34,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:34,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:34,810 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:34,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 288 transitions, 13650 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:34,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:34,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:34,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:35,047 INFO L130 PetriNetUnfolder]: 123/820 cut-off events. [2022-12-12 00:15:35,047 INFO L131 PetriNetUnfolder]: For 49750/51347 co-relation queries the response was YES. [2022-12-12 00:15:35,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12817 conditions, 820 events. 123/820 cut-off events. For 49750/51347 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4459 event pairs, 26 based on Foata normal form. 9/793 useless extension candidates. Maximal degree in co-relation 8710. Up to 348 conditions per place. [2022-12-12 00:15:35,053 INFO L137 encePairwiseOnDemand]: 132/145 looper letters, 136 selfloop transitions, 5 changer transitions 31/279 dead transitions. [2022-12-12 00:15:35,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 279 transitions, 13330 flow [2022-12-12 00:15:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:35,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1543 transitions. [2022-12-12 00:15:35,055 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7094252873563218 [2022-12-12 00:15:35,055 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 114 predicate places. [2022-12-12 00:15:35,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 279 transitions, 13330 flow [2022-12-12 00:15:35,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 248 transitions, 11370 flow [2022-12-12 00:15:35,061 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 248 transitions, 11370 flow [2022-12-12 00:15:35,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:35,061 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:35,061 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:35,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-12 00:15:35,062 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:35,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:35,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1600624701, now seen corresponding path program 11 times [2022-12-12 00:15:35,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:35,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180746098] [2022-12-12 00:15:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:35,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:35,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:35,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180746098] [2022-12-12 00:15:35,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180746098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:35,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:35,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:35,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892165632] [2022-12-12 00:15:35,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:35,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:35,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:35,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:35,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:35,176 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:35,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 248 transitions, 11370 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:35,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:35,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:35,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:35,494 INFO L130 PetriNetUnfolder]: 120/796 cut-off events. [2022-12-12 00:15:35,494 INFO L131 PetriNetUnfolder]: For 50736/52209 co-relation queries the response was YES. [2022-12-12 00:15:35,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12537 conditions, 796 events. 120/796 cut-off events. For 50736/52209 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4299 event pairs, 25 based on Foata normal form. 4/767 useless extension candidates. Maximal degree in co-relation 8950. Up to 332 conditions per place. [2022-12-12 00:15:35,500 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 110 selfloop transitions, 16 changer transitions 35/267 dead transitions. [2022-12-12 00:15:35,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 267 transitions, 12692 flow [2022-12-12 00:15:35,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 00:15:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 00:15:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1971 transitions. [2022-12-12 00:15:35,501 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7154264972776769 [2022-12-12 00:15:35,502 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 107 predicate places. [2022-12-12 00:15:35,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 267 transitions, 12692 flow [2022-12-12 00:15:35,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 232 transitions, 10307 flow [2022-12-12 00:15:35,507 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 232 transitions, 10307 flow [2022-12-12 00:15:35,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:35,508 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:35,508 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:35,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-12 00:15:35,508 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:35,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1396968831, now seen corresponding path program 12 times [2022-12-12 00:15:35,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:35,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682507969] [2022-12-12 00:15:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:35,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:35,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:35,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682507969] [2022-12-12 00:15:35,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682507969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:35,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:35,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:35,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712568527] [2022-12-12 00:15:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:35,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:35,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:35,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:35,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:35,616 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:35,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 232 transitions, 10307 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:35,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:35,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:35,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:35,947 INFO L130 PetriNetUnfolder]: 111/741 cut-off events. [2022-12-12 00:15:35,947 INFO L131 PetriNetUnfolder]: For 47916/49350 co-relation queries the response was YES. [2022-12-12 00:15:35,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11834 conditions, 741 events. 111/741 cut-off events. For 47916/49350 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3797 event pairs, 24 based on Foata normal form. 2/712 useless extension candidates. Maximal degree in co-relation 8317. Up to 304 conditions per place. [2022-12-12 00:15:35,954 INFO L137 encePairwiseOnDemand]: 133/145 looper letters, 110 selfloop transitions, 12 changer transitions 25/251 dead transitions. [2022-12-12 00:15:35,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 251 transitions, 11946 flow [2022-12-12 00:15:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 00:15:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 00:15:35,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1867 transitions. [2022-12-12 00:15:35,958 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7153256704980843 [2022-12-12 00:15:35,959 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 110 predicate places. [2022-12-12 00:15:35,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 251 transitions, 11946 flow [2022-12-12 00:15:35,965 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 226 transitions, 10243 flow [2022-12-12 00:15:35,965 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 226 transitions, 10243 flow [2022-12-12 00:15:35,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:35,966 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:35,966 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:35,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-12 00:15:35,966 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:35,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1929327857, now seen corresponding path program 13 times [2022-12-12 00:15:35,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:35,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716330906] [2022-12-12 00:15:35,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:35,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:36,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:36,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:36,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716330906] [2022-12-12 00:15:36,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716330906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:36,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:36,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:36,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571836207] [2022-12-12 00:15:36,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:36,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:36,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:36,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:36,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:36,156 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:36,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 226 transitions, 10243 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:36,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:36,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:36,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:36,452 INFO L130 PetriNetUnfolder]: 104/726 cut-off events. [2022-12-12 00:15:36,453 INFO L131 PetriNetUnfolder]: For 49039/50487 co-relation queries the response was YES. [2022-12-12 00:15:36,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11654 conditions, 726 events. 104/726 cut-off events. For 49039/50487 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3733 event pairs, 24 based on Foata normal form. 2/698 useless extension candidates. Maximal degree in co-relation 8053. Up to 291 conditions per place. [2022-12-12 00:15:36,458 INFO L137 encePairwiseOnDemand]: 131/145 looper letters, 103 selfloop transitions, 15 changer transitions 21/242 dead transitions. [2022-12-12 00:15:36,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 242 transitions, 11672 flow [2022-12-12 00:15:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 00:15:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 00:15:36,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1750 transitions. [2022-12-12 00:15:36,460 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7099391480730223 [2022-12-12 00:15:36,462 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 114 predicate places. [2022-12-12 00:15:36,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 242 transitions, 11672 flow [2022-12-12 00:15:36,468 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 235 places, 221 transitions, 10135 flow [2022-12-12 00:15:36,468 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 221 transitions, 10135 flow [2022-12-12 00:15:36,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:36,468 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:36,468 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:36,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-12 00:15:36,469 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:36,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:36,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1551425353, now seen corresponding path program 14 times [2022-12-12 00:15:36,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:36,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419537488] [2022-12-12 00:15:36,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:36,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:36,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:36,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419537488] [2022-12-12 00:15:36,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419537488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:36,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:36,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:36,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631551746] [2022-12-12 00:15:36,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:36,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:36,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:36,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:36,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:36,704 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:36,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 221 transitions, 10135 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:36,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:36,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:36,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:37,139 INFO L130 PetriNetUnfolder]: 99/716 cut-off events. [2022-12-12 00:15:37,140 INFO L131 PetriNetUnfolder]: For 51461/53081 co-relation queries the response was YES. [2022-12-12 00:15:37,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11526 conditions, 716 events. 99/716 cut-off events. For 51461/53081 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3722 event pairs, 27 based on Foata normal form. 4/689 useless extension candidates. Maximal degree in co-relation 7841. Up to 281 conditions per place. [2022-12-12 00:15:37,158 INFO L137 encePairwiseOnDemand]: 133/145 looper letters, 101 selfloop transitions, 13 changer transitions 18/234 dead transitions. [2022-12-12 00:15:37,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 234 transitions, 11342 flow [2022-12-12 00:15:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:37,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1547 transitions. [2022-12-12 00:15:37,159 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7112643678160919 [2022-12-12 00:15:37,160 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 118 predicate places. [2022-12-12 00:15:37,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 234 transitions, 11342 flow [2022-12-12 00:15:37,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 216 transitions, 10011 flow [2022-12-12 00:15:37,165 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 216 transitions, 10011 flow [2022-12-12 00:15:37,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:37,177 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:37,177 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:37,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-12 00:15:37,178 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:37,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:37,178 INFO L85 PathProgramCache]: Analyzing trace with hash 201204819, now seen corresponding path program 15 times [2022-12-12 00:15:37,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:37,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694537742] [2022-12-12 00:15:37,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:37,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:37,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694537742] [2022-12-12 00:15:37,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694537742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:37,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:37,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:15:37,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675895797] [2022-12-12 00:15:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:37,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:15:37,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:15:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:15:37,365 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 145 [2022-12-12 00:15:37,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 216 transitions, 10011 flow. Second operand has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:37,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:37,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 145 [2022-12-12 00:15:37,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:37,709 INFO L130 PetriNetUnfolder]: 90/639 cut-off events. [2022-12-12 00:15:37,709 INFO L131 PetriNetUnfolder]: For 47306/49037 co-relation queries the response was YES. [2022-12-12 00:15:37,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10386 conditions, 639 events. 90/639 cut-off events. For 47306/49037 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3098 event pairs, 25 based on Foata normal form. 4/614 useless extension candidates. Maximal degree in co-relation 6955. Up to 248 conditions per place. [2022-12-12 00:15:37,715 INFO L137 encePairwiseOnDemand]: 133/145 looper letters, 81 selfloop transitions, 0 changer transitions 27/207 dead transitions. [2022-12-12 00:15:37,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 207 transitions, 9483 flow [2022-12-12 00:15:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-12 00:15:37,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-12 00:15:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1540 transitions. [2022-12-12 00:15:37,716 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7080459770114943 [2022-12-12 00:15:37,717 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 125 predicate places. [2022-12-12 00:15:37,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 207 transitions, 9483 flow [2022-12-12 00:15:37,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 180 transitions, 7553 flow [2022-12-12 00:15:37,723 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 180 transitions, 7553 flow [2022-12-12 00:15:37,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:37,723 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:37,724 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:37,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-12 00:15:37,724 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:37,725 INFO L85 PathProgramCache]: Analyzing trace with hash 775287318, now seen corresponding path program 1 times [2022-12-12 00:15:37,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:37,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979822953] [2022-12-12 00:15:37,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:37,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:38,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:38,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979822953] [2022-12-12 00:15:38,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979822953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:38,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:38,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:15:38,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608204047] [2022-12-12 00:15:38,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:38,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:15:38,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:38,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:15:38,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:15:38,418 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:15:38,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 180 transitions, 7553 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:38,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:38,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:15:38,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:41,360 INFO L130 PetriNetUnfolder]: 529/1743 cut-off events. [2022-12-12 00:15:41,360 INFO L131 PetriNetUnfolder]: For 180345/181007 co-relation queries the response was YES. [2022-12-12 00:15:41,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23383 conditions, 1743 events. 529/1743 cut-off events. For 180345/181007 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10972 event pairs, 7 based on Foata normal form. 4/1667 useless extension candidates. Maximal degree in co-relation 19153. Up to 526 conditions per place. [2022-12-12 00:15:41,374 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 263 selfloop transitions, 36 changer transitions 52/431 dead transitions. [2022-12-12 00:15:41,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 431 transitions, 20679 flow [2022-12-12 00:15:41,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:15:41,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:15:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3534 transitions. [2022-12-12 00:15:41,377 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5668003207698477 [2022-12-12 00:15:41,377 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 120 predicate places. [2022-12-12 00:15:41,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 431 transitions, 20679 flow [2022-12-12 00:15:41,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 379 transitions, 17231 flow [2022-12-12 00:15:41,391 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 379 transitions, 17231 flow [2022-12-12 00:15:41,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:41,392 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:41,392 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:41,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-12 00:15:41,392 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:41,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:41,392 INFO L85 PathProgramCache]: Analyzing trace with hash -154923824, now seen corresponding path program 2 times [2022-12-12 00:15:41,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:41,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295654946] [2022-12-12 00:15:41,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:41,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:41,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:41,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295654946] [2022-12-12 00:15:41,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295654946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:41,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:41,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:15:41,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739847449] [2022-12-12 00:15:41,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:41,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:15:41,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:41,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:15:41,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:15:41,947 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:15:41,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 379 transitions, 17231 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:41,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:41,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:15:41,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:44,666 INFO L130 PetriNetUnfolder]: 575/1816 cut-off events. [2022-12-12 00:15:44,667 INFO L131 PetriNetUnfolder]: For 189210/189691 co-relation queries the response was YES. [2022-12-12 00:15:44,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27577 conditions, 1816 events. 575/1816 cut-off events. For 189210/189691 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11105 event pairs, 5 based on Foata normal form. 4/1758 useless extension candidates. Maximal degree in co-relation 22362. Up to 601 conditions per place. [2022-12-12 00:15:44,685 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 396 selfloop transitions, 100 changer transitions 51/627 dead transitions. [2022-12-12 00:15:44,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 627 transitions, 31057 flow [2022-12-12 00:15:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-12 00:15:44,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-12 00:15:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 3378 transitions. [2022-12-12 00:15:44,688 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5682085786375105 [2022-12-12 00:15:44,689 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 136 predicate places. [2022-12-12 00:15:44,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 627 transitions, 31057 flow [2022-12-12 00:15:44,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 576 transitions, 27675 flow [2022-12-12 00:15:44,775 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 576 transitions, 27675 flow [2022-12-12 00:15:44,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:44,775 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:44,776 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:44,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-12 00:15:44,776 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:44,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:44,778 INFO L85 PathProgramCache]: Analyzing trace with hash 324512852, now seen corresponding path program 3 times [2022-12-12 00:15:44,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:44,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55351332] [2022-12-12 00:15:44,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:44,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:45,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:45,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:45,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55351332] [2022-12-12 00:15:45,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55351332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:45,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:45,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:15:45,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642052126] [2022-12-12 00:15:45,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:45,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:15:45,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:45,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:15:45,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:15:45,367 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:15:45,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 576 transitions, 27675 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:45,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:45,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:15:45,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:50,210 INFO L130 PetriNetUnfolder]: 876/2659 cut-off events. [2022-12-12 00:15:50,210 INFO L131 PetriNetUnfolder]: For 259239/259817 co-relation queries the response was YES. [2022-12-12 00:15:50,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42349 conditions, 2659 events. 876/2659 cut-off events. For 259239/259817 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 18518 event pairs, 9 based on Foata normal form. 14/2587 useless extension candidates. Maximal degree in co-relation 33881. Up to 868 conditions per place. [2022-12-12 00:15:50,238 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 722 selfloop transitions, 77 changer transitions 93/972 dead transitions. [2022-12-12 00:15:50,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 972 transitions, 48482 flow [2022-12-12 00:15:50,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-12 00:15:50,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2022-12-12 00:15:50,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 4612 transitions. [2022-12-12 00:15:50,241 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5679802955665024 [2022-12-12 00:15:50,242 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 169 predicate places. [2022-12-12 00:15:50,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 972 transitions, 48482 flow [2022-12-12 00:15:50,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 260 places, 879 transitions, 43672 flow [2022-12-12 00:15:50,270 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 879 transitions, 43672 flow [2022-12-12 00:15:50,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:50,271 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:50,271 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:50,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-12 00:15:50,271 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:50,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:50,271 INFO L85 PathProgramCache]: Analyzing trace with hash 48345578, now seen corresponding path program 4 times [2022-12-12 00:15:50,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:50,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275195162] [2022-12-12 00:15:50,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:50,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:50,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:50,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275195162] [2022-12-12 00:15:50,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275195162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:50,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:50,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:15:50,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937459487] [2022-12-12 00:15:50,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:50,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:15:50,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:50,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:15:50,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:15:50,814 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:15:50,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 879 transitions, 43672 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:50,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:50,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:15:50,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:15:55,090 INFO L130 PetriNetUnfolder]: 880/2689 cut-off events. [2022-12-12 00:15:55,090 INFO L131 PetriNetUnfolder]: For 269563/270090 co-relation queries the response was YES. [2022-12-12 00:15:55,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46051 conditions, 2689 events. 880/2689 cut-off events. For 269563/270090 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 18829 event pairs, 6 based on Foata normal form. 20/2627 useless extension candidates. Maximal degree in co-relation 37172. Up to 913 conditions per place. [2022-12-12 00:15:55,119 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 762 selfloop transitions, 98 changer transitions 67/1007 dead transitions. [2022-12-12 00:15:55,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 1007 transitions, 53702 flow [2022-12-12 00:15:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 00:15:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 00:15:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 4136 transitions. [2022-12-12 00:15:55,123 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5704827586206896 [2022-12-12 00:15:55,123 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 178 predicate places. [2022-12-12 00:15:55,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 309 places, 1007 transitions, 53702 flow [2022-12-12 00:15:55,153 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 277 places, 940 transitions, 49390 flow [2022-12-12 00:15:55,153 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 940 transitions, 49390 flow [2022-12-12 00:15:55,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:55,154 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:15:55,154 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:15:55,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-12 00:15:55,154 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:15:55,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:15:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash -657496200, now seen corresponding path program 5 times [2022-12-12 00:15:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:15:55,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814869749] [2022-12-12 00:15:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:15:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:15:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:15:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:15:55,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:15:55,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814869749] [2022-12-12 00:15:55,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814869749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:15:55,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:15:55,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:15:55,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092676771] [2022-12-12 00:15:55,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:15:55,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:15:55,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:15:55,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:15:55,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:15:55,735 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:15:55,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 940 transitions, 49390 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:15:55,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:15:55,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:15:55,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:00,327 INFO L130 PetriNetUnfolder]: 886/2745 cut-off events. [2022-12-12 00:16:00,328 INFO L131 PetriNetUnfolder]: For 277176/277940 co-relation queries the response was YES. [2022-12-12 00:16:00,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48475 conditions, 2745 events. 886/2745 cut-off events. For 277176/277940 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19294 event pairs, 6 based on Foata normal form. 20/2674 useless extension candidates. Maximal degree in co-relation 41908. Up to 916 conditions per place. [2022-12-12 00:16:00,361 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 774 selfloop transitions, 87 changer transitions 75/1016 dead transitions. [2022-12-12 00:16:00,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1016 transitions, 56165 flow [2022-12-12 00:16:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 00:16:00,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 00:16:00,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4382 transitions. [2022-12-12 00:16:00,364 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5702016916070267 [2022-12-12 00:16:00,365 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 198 predicate places. [2022-12-12 00:16:00,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 1016 transitions, 56165 flow [2022-12-12 00:16:00,417 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 941 transitions, 51426 flow [2022-12-12 00:16:00,417 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 941 transitions, 51426 flow [2022-12-12 00:16:00,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:00,418 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:00,418 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:00,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-12 00:16:00,418 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:00,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:00,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1742211694, now seen corresponding path program 6 times [2022-12-12 00:16:00,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:00,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709758116] [2022-12-12 00:16:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:01,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:01,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709758116] [2022-12-12 00:16:01,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709758116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:01,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:01,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:01,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101275744] [2022-12-12 00:16:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:01,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:01,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:01,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:01,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:01,150 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:01,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 941 transitions, 51426 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:01,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:01,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:01,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:05,365 INFO L130 PetriNetUnfolder]: 856/2664 cut-off events. [2022-12-12 00:16:05,365 INFO L131 PetriNetUnfolder]: For 272694/273563 co-relation queries the response was YES. [2022-12-12 00:16:05,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49285 conditions, 2664 events. 856/2664 cut-off events. For 272694/273563 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 18550 event pairs, 3 based on Foata normal form. 22/2605 useless extension candidates. Maximal degree in co-relation 39511. Up to 895 conditions per place. [2022-12-12 00:16:05,398 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 762 selfloop transitions, 92 changer transitions 55/989 dead transitions. [2022-12-12 00:16:05,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 989 transitions, 56568 flow [2022-12-12 00:16:05,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:16:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:16:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3658 transitions. [2022-12-12 00:16:05,402 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5733542319749216 [2022-12-12 00:16:05,402 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 205 predicate places. [2022-12-12 00:16:05,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 989 transitions, 56568 flow [2022-12-12 00:16:05,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 311 places, 934 transitions, 52473 flow [2022-12-12 00:16:05,437 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 934 transitions, 52473 flow [2022-12-12 00:16:05,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:05,438 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:05,438 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:05,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-12 00:16:05,438 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:05,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:05,439 INFO L85 PathProgramCache]: Analyzing trace with hash 257672888, now seen corresponding path program 7 times [2022-12-12 00:16:05,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:05,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650538005] [2022-12-12 00:16:05,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:05,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:06,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:06,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650538005] [2022-12-12 00:16:06,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650538005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:06,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:06,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:06,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663407640] [2022-12-12 00:16:06,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:06,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:06,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:06,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:06,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:06,215 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:06,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 934 transitions, 52473 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:06,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:06,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:06,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:10,228 INFO L130 PetriNetUnfolder]: 860/2695 cut-off events. [2022-12-12 00:16:10,228 INFO L131 PetriNetUnfolder]: For 278794/279652 co-relation queries the response was YES. [2022-12-12 00:16:10,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50737 conditions, 2695 events. 860/2695 cut-off events. For 278794/279652 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18828 event pairs, 5 based on Foata normal form. 18/2622 useless extension candidates. Maximal degree in co-relation 40926. Up to 882 conditions per place. [2022-12-12 00:16:10,262 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 756 selfloop transitions, 96 changer transitions 47/979 dead transitions. [2022-12-12 00:16:10,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 979 transitions, 57403 flow [2022-12-12 00:16:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:16:10,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:16:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3185 transitions. [2022-12-12 00:16:10,265 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5780399274047187 [2022-12-12 00:16:10,265 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 217 predicate places. [2022-12-12 00:16:10,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 348 places, 979 transitions, 57403 flow [2022-12-12 00:16:10,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 932 transitions, 53851 flow [2022-12-12 00:16:10,306 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 932 transitions, 53851 flow [2022-12-12 00:16:10,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:10,307 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:10,307 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:10,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-12 00:16:10,307 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:10,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:10,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1440951454, now seen corresponding path program 8 times [2022-12-12 00:16:10,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:10,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116465109] [2022-12-12 00:16:10,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:10,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:10,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:10,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116465109] [2022-12-12 00:16:10,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116465109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:10,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:10,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:10,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519358645] [2022-12-12 00:16:10,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:10,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:10,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:10,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:10,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:10,901 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:10,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 932 transitions, 53851 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:10,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:10,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:10,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:15,075 INFO L130 PetriNetUnfolder]: 831/2598 cut-off events. [2022-12-12 00:16:15,076 INFO L131 PetriNetUnfolder]: For 269853/270644 co-relation queries the response was YES. [2022-12-12 00:16:15,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50404 conditions, 2598 events. 831/2598 cut-off events. For 269853/270644 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18097 event pairs, 3 based on Foata normal form. 18/2529 useless extension candidates. Maximal degree in co-relation 41420. Up to 841 conditions per place. [2022-12-12 00:16:15,111 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 726 selfloop transitions, 69 changer transitions 56/931 dead transitions. [2022-12-12 00:16:15,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 931 transitions, 55455 flow [2022-12-12 00:16:15,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-12 00:16:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-12 00:16:15,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2939 transitions. [2022-12-12 00:16:15,113 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5791133004926108 [2022-12-12 00:16:15,113 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 233 predicate places. [2022-12-12 00:16:15,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 931 transitions, 55455 flow [2022-12-12 00:16:15,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 875 transitions, 51508 flow [2022-12-12 00:16:15,152 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 875 transitions, 51508 flow [2022-12-12 00:16:15,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:15,153 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:15,153 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:15,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-12 00:16:15,153 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:15,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1178080394, now seen corresponding path program 9 times [2022-12-12 00:16:15,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:15,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140235800] [2022-12-12 00:16:15,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:15,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:15,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:15,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140235800] [2022-12-12 00:16:15,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140235800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:15,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:15,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:15,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448273486] [2022-12-12 00:16:15,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:15,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:15,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:15,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:15,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:15,810 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:15,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 875 transitions, 51508 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:15,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:15,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:15,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:19,872 INFO L130 PetriNetUnfolder]: 907/2773 cut-off events. [2022-12-12 00:16:19,873 INFO L131 PetriNetUnfolder]: For 291478/292395 co-relation queries the response was YES. [2022-12-12 00:16:19,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58271 conditions, 2773 events. 907/2773 cut-off events. For 291478/292395 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19525 event pairs, 5 based on Foata normal form. 20/2706 useless extension candidates. Maximal degree in co-relation 48281. Up to 953 conditions per place. [2022-12-12 00:16:19,913 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 808 selfloop transitions, 98 changer transitions 67/1053 dead transitions. [2022-12-12 00:16:19,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1053 transitions, 66518 flow [2022-12-12 00:16:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 00:16:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 00:16:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 4142 transitions. [2022-12-12 00:16:19,931 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5713103448275862 [2022-12-12 00:16:19,931 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 233 predicate places. [2022-12-12 00:16:19,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 1053 transitions, 66518 flow [2022-12-12 00:16:20,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 332 places, 986 transitions, 61536 flow [2022-12-12 00:16:20,058 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 986 transitions, 61536 flow [2022-12-12 00:16:20,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:20,058 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:20,066 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:20,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-12 00:16:20,066 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:20,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:20,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1295392048, now seen corresponding path program 10 times [2022-12-12 00:16:20,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:20,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561592925] [2022-12-12 00:16:20,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:20,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:20,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:20,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561592925] [2022-12-12 00:16:20,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561592925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:20,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:20,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:20,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767986605] [2022-12-12 00:16:20,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:20,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:20,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:20,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:20,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:20,739 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:20,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 986 transitions, 61536 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:20,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:20,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:20,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:25,928 INFO L130 PetriNetUnfolder]: 913/2810 cut-off events. [2022-12-12 00:16:25,928 INFO L131 PetriNetUnfolder]: For 305441/306582 co-relation queries the response was YES. [2022-12-12 00:16:25,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61668 conditions, 2810 events. 913/2810 cut-off events. For 305441/306582 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 19884 event pairs, 5 based on Foata normal form. 18/2746 useless extension candidates. Maximal degree in co-relation 50053. Up to 977 conditions per place. [2022-12-12 00:16:25,968 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 833 selfloop transitions, 93 changer transitions 75/1081 dead transitions. [2022-12-12 00:16:25,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 1081 transitions, 70588 flow [2022-12-12 00:16:25,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 00:16:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 00:16:25,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4388 transitions. [2022-12-12 00:16:25,972 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5709824333116461 [2022-12-12 00:16:25,973 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 253 predicate places. [2022-12-12 00:16:25,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 384 places, 1081 transitions, 70588 flow [2022-12-12 00:16:26,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 348 places, 1006 transitions, 65099 flow [2022-12-12 00:16:26,021 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 1006 transitions, 65099 flow [2022-12-12 00:16:26,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:26,021 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:26,021 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:26,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-12 00:16:26,021 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:26,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:26,022 INFO L85 PathProgramCache]: Analyzing trace with hash -197810658, now seen corresponding path program 11 times [2022-12-12 00:16:26,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:26,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736618529] [2022-12-12 00:16:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:26,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:26,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:26,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736618529] [2022-12-12 00:16:26,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736618529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:26,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:26,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:26,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211673074] [2022-12-12 00:16:26,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:26,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:26,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:26,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:26,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:26,597 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:26,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 1006 transitions, 65099 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:26,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:26,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:26,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:30,578 INFO L130 PetriNetUnfolder]: 913/2807 cut-off events. [2022-12-12 00:16:30,578 INFO L131 PetriNetUnfolder]: For 312366/313718 co-relation queries the response was YES. [2022-12-12 00:16:30,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63269 conditions, 2807 events. 913/2807 cut-off events. For 312366/313718 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19800 event pairs, 8 based on Foata normal form. 18/2739 useless extension candidates. Maximal degree in co-relation 51612. Up to 966 conditions per place. [2022-12-12 00:16:30,618 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 833 selfloop transitions, 102 changer transitions 47/1062 dead transitions. [2022-12-12 00:16:30,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 1062 transitions, 71702 flow [2022-12-12 00:16:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:16:30,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:16:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3192 transitions. [2022-12-12 00:16:30,621 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5793103448275863 [2022-12-12 00:16:30,621 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 254 predicate places. [2022-12-12 00:16:30,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 385 places, 1062 transitions, 71702 flow [2022-12-12 00:16:30,664 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 367 places, 1015 transitions, 67774 flow [2022-12-12 00:16:30,665 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 1015 transitions, 67774 flow [2022-12-12 00:16:30,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:30,665 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:30,665 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:30,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-12 00:16:30,666 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:30,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:30,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2119974624, now seen corresponding path program 12 times [2022-12-12 00:16:30,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:30,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123935478] [2022-12-12 00:16:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:30,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:31,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:31,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123935478] [2022-12-12 00:16:31,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123935478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:31,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:31,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:31,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784564266] [2022-12-12 00:16:31,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:31,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:31,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:31,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:31,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:31,291 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:31,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 1015 transitions, 67774 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:31,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:31,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:31,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:35,419 INFO L130 PetriNetUnfolder]: 891/2764 cut-off events. [2022-12-12 00:16:35,419 INFO L131 PetriNetUnfolder]: For 312589/313843 co-relation queries the response was YES. [2022-12-12 00:16:35,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64165 conditions, 2764 events. 891/2764 cut-off events. For 312589/313843 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19503 event pairs, 6 based on Foata normal form. 21/2703 useless extension candidates. Maximal degree in co-relation 52481. Up to 949 conditions per place. [2022-12-12 00:16:35,457 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 822 selfloop transitions, 95 changer transitions 55/1052 dead transitions. [2022-12-12 00:16:35,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1052 transitions, 72449 flow [2022-12-12 00:16:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:16:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:16:35,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3660 transitions. [2022-12-12 00:16:35,462 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5736677115987461 [2022-12-12 00:16:35,463 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 279 predicate places. [2022-12-12 00:16:35,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 410 places, 1052 transitions, 72449 flow [2022-12-12 00:16:35,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 385 places, 997 transitions, 67694 flow [2022-12-12 00:16:35,507 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 997 transitions, 67694 flow [2022-12-12 00:16:35,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:35,508 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:35,508 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:35,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-12 00:16:35,508 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:35,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1714993936, now seen corresponding path program 13 times [2022-12-12 00:16:35,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:35,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540169665] [2022-12-12 00:16:35,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:35,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:36,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:36,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540169665] [2022-12-12 00:16:36,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540169665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:36,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:36,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:36,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347590879] [2022-12-12 00:16:36,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:36,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:36,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:36,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:36,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:36,068 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:36,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 997 transitions, 67694 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:36,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:36,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:36,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:40,415 INFO L130 PetriNetUnfolder]: 890/2788 cut-off events. [2022-12-12 00:16:40,415 INFO L131 PetriNetUnfolder]: For 315860/317149 co-relation queries the response was YES. [2022-12-12 00:16:40,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66248 conditions, 2788 events. 890/2788 cut-off events. For 315860/317149 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19724 event pairs, 5 based on Foata normal form. 20/2720 useless extension candidates. Maximal degree in co-relation 54327. Up to 949 conditions per place. [2022-12-12 00:16:40,462 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 814 selfloop transitions, 92 changer transitions 67/1053 dead transitions. [2022-12-12 00:16:40,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 1053 transitions, 74369 flow [2022-12-12 00:16:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 00:16:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 00:16:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4061 transitions. [2022-12-12 00:16:40,465 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5715693173821252 [2022-12-12 00:16:40,466 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 302 predicate places. [2022-12-12 00:16:40,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 433 places, 1053 transitions, 74369 flow [2022-12-12 00:16:40,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 986 transitions, 68851 flow [2022-12-12 00:16:40,508 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 986 transitions, 68851 flow [2022-12-12 00:16:40,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:40,508 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:40,509 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:40,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-12 00:16:40,509 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:40,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1244877490, now seen corresponding path program 14 times [2022-12-12 00:16:40,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:40,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299315819] [2022-12-12 00:16:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:41,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:41,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:41,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299315819] [2022-12-12 00:16:41,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299315819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:41,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:41,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:41,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697622723] [2022-12-12 00:16:41,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:41,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:41,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:41,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:41,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:41,002 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:41,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 986 transitions, 68851 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:41,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:41,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:41,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:44,028 INFO L130 PetriNetUnfolder]: 882/2774 cut-off events. [2022-12-12 00:16:44,028 INFO L131 PetriNetUnfolder]: For 322419/323818 co-relation queries the response was YES. [2022-12-12 00:16:44,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67879 conditions, 2774 events. 882/2774 cut-off events. For 322419/323818 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19592 event pairs, 7 based on Foata normal form. 16/2702 useless extension candidates. Maximal degree in co-relation 56102. Up to 944 conditions per place. [2022-12-12 00:16:44,064 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 821 selfloop transitions, 99 changer transitions 45/1045 dead transitions. [2022-12-12 00:16:44,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1045 transitions, 76077 flow [2022-12-12 00:16:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:16:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:16:44,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3035 transitions. [2022-12-12 00:16:44,067 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5814176245210728 [2022-12-12 00:16:44,067 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 306 predicate places. [2022-12-12 00:16:44,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 437 places, 1045 transitions, 76077 flow [2022-12-12 00:16:44,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 1000 transitions, 72097 flow [2022-12-12 00:16:44,109 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 1000 transitions, 72097 flow [2022-12-12 00:16:44,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:44,109 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:44,109 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:44,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-12 00:16:44,109 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:44,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:44,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1635015890, now seen corresponding path program 15 times [2022-12-12 00:16:44,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:44,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827267051] [2022-12-12 00:16:44,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:44,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:44,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:44,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827267051] [2022-12-12 00:16:44,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827267051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:44,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:44,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:44,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154573595] [2022-12-12 00:16:44,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:44,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:44,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:44,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:44,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:44,709 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:44,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 1000 transitions, 72097 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:44,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:44,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:44,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:48,358 INFO L130 PetriNetUnfolder]: 866/2724 cut-off events. [2022-12-12 00:16:48,358 INFO L131 PetriNetUnfolder]: For 320042/321439 co-relation queries the response was YES. [2022-12-12 00:16:48,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68569 conditions, 2724 events. 866/2724 cut-off events. For 320042/321439 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19081 event pairs, 5 based on Foata normal form. 16/2652 useless extension candidates. Maximal degree in co-relation 56843. Up to 922 conditions per place. [2022-12-12 00:16:48,409 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 805 selfloop transitions, 79 changer transitions 53/1017 dead transitions. [2022-12-12 00:16:48,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 1017 transitions, 75747 flow [2022-12-12 00:16:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-12 00:16:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-12 00:16:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2947 transitions. [2022-12-12 00:16:48,411 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5806896551724138 [2022-12-12 00:16:48,411 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 324 predicate places. [2022-12-12 00:16:48,411 INFO L82 GeneralOperation]: Start removeDead. Operand has 455 places, 1017 transitions, 75747 flow [2022-12-12 00:16:48,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 415 places, 964 transitions, 71112 flow [2022-12-12 00:16:48,456 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 964 transitions, 71112 flow [2022-12-12 00:16:48,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:48,456 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:48,456 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:48,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-12 00:16:48,456 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1789583078, now seen corresponding path program 16 times [2022-12-12 00:16:48,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:48,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159337121] [2022-12-12 00:16:48,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:48,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:49,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:49,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159337121] [2022-12-12 00:16:49,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159337121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:49,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:49,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:49,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057490254] [2022-12-12 00:16:49,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:49,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:49,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:49,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:49,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:49,025 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:49,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 964 transitions, 71112 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:49,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:49,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:49,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:53,038 INFO L130 PetriNetUnfolder]: 891/2749 cut-off events. [2022-12-12 00:16:53,039 INFO L131 PetriNetUnfolder]: For 332863/334681 co-relation queries the response was YES. [2022-12-12 00:16:53,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71987 conditions, 2749 events. 891/2749 cut-off events. For 332863/334681 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19240 event pairs, 7 based on Foata normal form. 22/2686 useless extension candidates. Maximal degree in co-relation 59469. Up to 940 conditions per place. [2022-12-12 00:16:53,078 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 805 selfloop transitions, 89 changer transitions 55/1029 dead transitions. [2022-12-12 00:16:53,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 1029 transitions, 78951 flow [2022-12-12 00:16:53,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:16:53,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:16:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3660 transitions. [2022-12-12 00:16:53,080 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5736677115987461 [2022-12-12 00:16:53,080 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 327 predicate places. [2022-12-12 00:16:53,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 1029 transitions, 78951 flow [2022-12-12 00:16:53,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 433 places, 974 transitions, 73756 flow [2022-12-12 00:16:53,126 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 974 transitions, 73756 flow [2022-12-12 00:16:53,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:53,126 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:53,126 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:53,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-12 00:16:53,126 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:53,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:53,127 INFO L85 PathProgramCache]: Analyzing trace with hash 273424012, now seen corresponding path program 17 times [2022-12-12 00:16:53,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:53,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999896455] [2022-12-12 00:16:53,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:53,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:53,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:53,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999896455] [2022-12-12 00:16:53,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999896455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:53,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:53,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:53,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630581053] [2022-12-12 00:16:53,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:53,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:53,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:53,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:53,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:53,616 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:53,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 974 transitions, 73756 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:53,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:53,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:53,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:16:57,298 INFO L130 PetriNetUnfolder]: 860/2677 cut-off events. [2022-12-12 00:16:57,299 INFO L131 PetriNetUnfolder]: For 329085/330692 co-relation queries the response was YES. [2022-12-12 00:16:57,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71738 conditions, 2677 events. 860/2677 cut-off events. For 329085/330692 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18718 event pairs, 3 based on Foata normal form. 18/2614 useless extension candidates. Maximal degree in co-relation 59441. Up to 907 conditions per place. [2022-12-12 00:16:57,336 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 792 selfloop transitions, 75 changer transitions 53/1000 dead transitions. [2022-12-12 00:16:57,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 1000 transitions, 77842 flow [2022-12-12 00:16:57,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:16:57,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:16:57,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3181 transitions. [2022-12-12 00:16:57,338 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5773139745916516 [2022-12-12 00:16:57,339 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 339 predicate places. [2022-12-12 00:16:57,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 470 places, 1000 transitions, 77842 flow [2022-12-12 00:16:57,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 947 transitions, 72910 flow [2022-12-12 00:16:57,448 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 947 transitions, 72910 flow [2022-12-12 00:16:57,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:57,448 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:16:57,448 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:16:57,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-12 00:16:57,448 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:16:57,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:16:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1831008388, now seen corresponding path program 18 times [2022-12-12 00:16:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:16:57,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758184458] [2022-12-12 00:16:57,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:16:57,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:16:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:16:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:16:57,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:16:57,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758184458] [2022-12-12 00:16:57,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758184458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:16:57,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:16:57,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:16:57,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356747798] [2022-12-12 00:16:57,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:16:57,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:16:57,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:16:57,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:16:57,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:16:57,837 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:16:57,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 947 transitions, 72910 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:16:57,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:16:57,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:16:57,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:00,799 INFO L130 PetriNetUnfolder]: 864/2688 cut-off events. [2022-12-12 00:17:00,800 INFO L131 PetriNetUnfolder]: For 336843/338499 co-relation queries the response was YES. [2022-12-12 00:17:00,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74157 conditions, 2688 events. 864/2688 cut-off events. For 336843/338499 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18772 event pairs, 6 based on Foata normal form. 18/2624 useless extension candidates. Maximal degree in co-relation 61506. Up to 913 conditions per place. [2022-12-12 00:17:00,838 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 790 selfloop transitions, 92 changer transitions 47/1009 dead transitions. [2022-12-12 00:17:00,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 1009 transitions, 80847 flow [2022-12-12 00:17:00,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:17:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:17:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3110 transitions. [2022-12-12 00:17:00,840 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5796831314072693 [2022-12-12 00:17:00,840 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 340 predicate places. [2022-12-12 00:17:00,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 471 places, 1009 transitions, 80847 flow [2022-12-12 00:17:00,884 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 454 places, 962 transitions, 76261 flow [2022-12-12 00:17:00,885 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 962 transitions, 76261 flow [2022-12-12 00:17:00,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:00,885 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:00,885 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:00,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-12 00:17:00,885 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:00,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:00,886 INFO L85 PathProgramCache]: Analyzing trace with hash 606403840, now seen corresponding path program 19 times [2022-12-12 00:17:00,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:00,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671696600] [2022-12-12 00:17:00,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:00,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:01,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:01,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:01,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671696600] [2022-12-12 00:17:01,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671696600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:01,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:01,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:01,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601591025] [2022-12-12 00:17:01,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:01,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:01,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:01,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:01,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:01,478 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:01,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 962 transitions, 76261 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:01,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:01,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:01,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:05,169 INFO L130 PetriNetUnfolder]: 862/2715 cut-off events. [2022-12-12 00:17:05,169 INFO L131 PetriNetUnfolder]: For 344672/346353 co-relation queries the response was YES. [2022-12-12 00:17:05,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76004 conditions, 2715 events. 862/2715 cut-off events. For 344672/346353 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19083 event pairs, 3 based on Foata normal form. 18/2646 useless extension candidates. Maximal degree in co-relation 63245. Up to 911 conditions per place. [2022-12-12 00:17:05,209 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 792 selfloop transitions, 88 changer transitions 49/1009 dead transitions. [2022-12-12 00:17:05,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1009 transitions, 82568 flow [2022-12-12 00:17:05,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:17:05,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:17:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3182 transitions. [2022-12-12 00:17:05,211 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5774954627949184 [2022-12-12 00:17:05,212 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 360 predicate places. [2022-12-12 00:17:05,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 491 places, 1009 transitions, 82568 flow [2022-12-12 00:17:05,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 469 places, 960 transitions, 77781 flow [2022-12-12 00:17:05,260 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 960 transitions, 77781 flow [2022-12-12 00:17:05,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:05,260 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:05,260 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:05,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-12 00:17:05,261 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:05,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1943899982, now seen corresponding path program 20 times [2022-12-12 00:17:05,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:05,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102406048] [2022-12-12 00:17:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:05,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:05,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102406048] [2022-12-12 00:17:05,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102406048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:05,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:05,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731799511] [2022-12-12 00:17:05,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:05,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:05,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:05,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:05,855 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:05,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 960 transitions, 77781 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:05,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:05,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:05,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:09,688 INFO L130 PetriNetUnfolder]: 856/2674 cut-off events. [2022-12-12 00:17:09,688 INFO L131 PetriNetUnfolder]: For 346396/348105 co-relation queries the response was YES. [2022-12-12 00:17:09,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77234 conditions, 2674 events. 856/2674 cut-off events. For 346396/348105 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18621 event pairs, 5 based on Foata normal form. 18/2610 useless extension candidates. Maximal degree in co-relation 64373. Up to 900 conditions per place. [2022-12-12 00:17:09,729 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 781 selfloop transitions, 82 changer transitions 56/999 dead transitions. [2022-12-12 00:17:09,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 999 transitions, 83213 flow [2022-12-12 00:17:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-12 00:17:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-12 00:17:09,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 3413 transitions. [2022-12-12 00:17:09,731 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5740958788898234 [2022-12-12 00:17:09,731 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 378 predicate places. [2022-12-12 00:17:09,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 509 places, 999 transitions, 83213 flow [2022-12-12 00:17:09,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 481 places, 943 transitions, 77594 flow [2022-12-12 00:17:09,780 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 943 transitions, 77594 flow [2022-12-12 00:17:09,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:09,780 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:09,780 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:09,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-12 00:17:09,780 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:09,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1958306326, now seen corresponding path program 21 times [2022-12-12 00:17:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:09,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452084380] [2022-12-12 00:17:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:09,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:10,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:10,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452084380] [2022-12-12 00:17:10,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452084380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:10,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:10,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:10,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685110525] [2022-12-12 00:17:10,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:10,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:10,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:10,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:10,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:10,262 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:10,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 943 transitions, 77594 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:10,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:10,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:10,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:14,358 INFO L130 PetriNetUnfolder]: 849/2656 cut-off events. [2022-12-12 00:17:14,358 INFO L131 PetriNetUnfolder]: For 350286/352173 co-relation queries the response was YES. [2022-12-12 00:17:14,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78343 conditions, 2656 events. 849/2656 cut-off events. For 350286/352173 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18479 event pairs, 7 based on Foata normal form. 18/2592 useless extension candidates. Maximal degree in co-relation 65255. Up to 886 conditions per place. [2022-12-12 00:17:14,399 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 773 selfloop transitions, 82 changer transitions 46/981 dead transitions. [2022-12-12 00:17:14,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 981 transitions, 83130 flow [2022-12-12 00:17:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:17:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:17:14,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3099 transitions. [2022-12-12 00:17:14,401 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5776328052190122 [2022-12-12 00:17:14,402 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 386 predicate places. [2022-12-12 00:17:14,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 981 transitions, 83130 flow [2022-12-12 00:17:14,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 500 places, 935 transitions, 78446 flow [2022-12-12 00:17:14,452 INFO L495 AbstractCegarLoop]: Abstraction has has 500 places, 935 transitions, 78446 flow [2022-12-12 00:17:14,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:14,452 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:14,452 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:14,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-12 00:17:14,452 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:14,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:14,453 INFO L85 PathProgramCache]: Analyzing trace with hash -506071250, now seen corresponding path program 22 times [2022-12-12 00:17:14,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:14,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118568748] [2022-12-12 00:17:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:14,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:14,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:14,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118568748] [2022-12-12 00:17:14,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118568748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:14,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:14,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:14,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868686989] [2022-12-12 00:17:14,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:14,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:14,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:14,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:14,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:14,943 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:14,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 935 transitions, 78446 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:14,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:14,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:14,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:19,061 INFO L130 PetriNetUnfolder]: 862/2681 cut-off events. [2022-12-12 00:17:19,062 INFO L131 PetriNetUnfolder]: For 362007/364085 co-relation queries the response was YES. [2022-12-12 00:17:19,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80799 conditions, 2681 events. 862/2681 cut-off events. For 362007/364085 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18669 event pairs, 9 based on Foata normal form. 20/2615 useless extension candidates. Maximal degree in co-relation 67351. Up to 888 conditions per place. [2022-12-12 00:17:19,113 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 770 selfloop transitions, 77 changer transitions 56/983 dead transitions. [2022-12-12 00:17:19,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 983 transitions, 85112 flow [2022-12-12 00:17:19,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:17:19,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:17:19,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3569 transitions. [2022-12-12 00:17:19,115 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5724137931034483 [2022-12-12 00:17:19,116 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 411 predicate places. [2022-12-12 00:17:19,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 542 places, 983 transitions, 85112 flow [2022-12-12 00:17:19,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 518 places, 927 transitions, 79181 flow [2022-12-12 00:17:19,173 INFO L495 AbstractCegarLoop]: Abstraction has has 518 places, 927 transitions, 79181 flow [2022-12-12 00:17:19,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:19,173 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:19,173 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:19,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-12 00:17:19,173 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:19,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:19,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1876206214, now seen corresponding path program 23 times [2022-12-12 00:17:19,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:19,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951736654] [2022-12-12 00:17:19,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:19,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:19,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:19,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951736654] [2022-12-12 00:17:19,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951736654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:19,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:19,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:19,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211272930] [2022-12-12 00:17:19,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:19,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:19,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:19,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:19,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:19,673 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:19,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 927 transitions, 79181 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:19,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:19,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:19,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:23,530 INFO L130 PetriNetUnfolder]: 829/2594 cut-off events. [2022-12-12 00:17:23,530 INFO L131 PetriNetUnfolder]: For 348071/350022 co-relation queries the response was YES. [2022-12-12 00:17:23,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79034 conditions, 2594 events. 829/2594 cut-off events. For 348071/350022 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18040 event pairs, 5 based on Foata normal form. 16/2522 useless extension candidates. Maximal degree in co-relation 66872. Up to 841 conditions per place. [2022-12-12 00:17:23,572 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 737 selfloop transitions, 54 changer transitions 58/929 dead transitions. [2022-12-12 00:17:23,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 929 transitions, 80974 flow [2022-12-12 00:17:23,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:17:23,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:17:23,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3162 transitions. [2022-12-12 00:17:23,575 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5738656987295826 [2022-12-12 00:17:23,575 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 424 predicate places. [2022-12-12 00:17:23,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 555 places, 929 transitions, 80974 flow [2022-12-12 00:17:23,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 465 places, 871 transitions, 75136 flow [2022-12-12 00:17:23,625 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 871 transitions, 75136 flow [2022-12-12 00:17:23,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:23,626 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:23,626 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:23,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-12 00:17:23,626 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:23,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:23,626 INFO L85 PathProgramCache]: Analyzing trace with hash 143758916, now seen corresponding path program 24 times [2022-12-12 00:17:23,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:23,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961106246] [2022-12-12 00:17:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:23,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:24,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:24,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961106246] [2022-12-12 00:17:24,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961106246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:24,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:24,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:24,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855123236] [2022-12-12 00:17:24,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:24,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:24,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:24,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:24,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:24,131 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:24,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 871 transitions, 75136 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:24,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:24,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:24,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:28,456 INFO L130 PetriNetUnfolder]: 884/2699 cut-off events. [2022-12-12 00:17:28,457 INFO L131 PetriNetUnfolder]: For 358288/360167 co-relation queries the response was YES. [2022-12-12 00:17:28,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86084 conditions, 2699 events. 884/2699 cut-off events. For 358288/360167 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18695 event pairs, 5 based on Foata normal form. 18/2630 useless extension candidates. Maximal degree in co-relation 73852. Up to 903 conditions per place. [2022-12-12 00:17:28,503 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 788 selfloop transitions, 95 changer transitions 65/1028 dead transitions. [2022-12-12 00:17:28,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 1028 transitions, 91870 flow [2022-12-12 00:17:28,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 00:17:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 00:17:28,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 3901 transitions. [2022-12-12 00:17:28,506 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5724137931034483 [2022-12-12 00:17:28,506 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 380 predicate places. [2022-12-12 00:17:28,507 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 1028 transitions, 91870 flow [2022-12-12 00:17:28,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 482 places, 963 transitions, 85288 flow [2022-12-12 00:17:28,564 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 963 transitions, 85288 flow [2022-12-12 00:17:28,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:28,565 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:28,565 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:28,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-12 00:17:28,565 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:28,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1858390982, now seen corresponding path program 25 times [2022-12-12 00:17:28,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:28,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23120953] [2022-12-12 00:17:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:29,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:29,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23120953] [2022-12-12 00:17:29,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23120953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:29,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:29,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:29,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636826652] [2022-12-12 00:17:29,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:29,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:29,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:29,166 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:29,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 963 transitions, 85288 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:29,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:29,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:29,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:33,890 INFO L130 PetriNetUnfolder]: 933/2790 cut-off events. [2022-12-12 00:17:33,891 INFO L131 PetriNetUnfolder]: For 389316/391750 co-relation queries the response was YES. [2022-12-12 00:17:33,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92846 conditions, 2790 events. 933/2790 cut-off events. For 389316/391750 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19467 event pairs, 10 based on Foata normal form. 20/2724 useless extension candidates. Maximal degree in co-relation 83914. Up to 964 conditions per place. [2022-12-12 00:17:33,979 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 844 selfloop transitions, 103 changer transitions 69/1096 dead transitions. [2022-12-12 00:17:33,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 1096 transitions, 101160 flow [2022-12-12 00:17:33,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 00:17:33,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 00:17:33,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 3988 transitions. [2022-12-12 00:17:33,983 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5729885057471265 [2022-12-12 00:17:33,984 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 398 predicate places. [2022-12-12 00:17:33,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 529 places, 1096 transitions, 101160 flow [2022-12-12 00:17:34,051 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 499 places, 1027 transitions, 93900 flow [2022-12-12 00:17:34,052 INFO L495 AbstractCegarLoop]: Abstraction has has 499 places, 1027 transitions, 93900 flow [2022-12-12 00:17:34,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:34,052 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:34,052 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:34,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-12 00:17:34,052 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:34,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:34,053 INFO L85 PathProgramCache]: Analyzing trace with hash 251837428, now seen corresponding path program 26 times [2022-12-12 00:17:34,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:34,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810316813] [2022-12-12 00:17:34,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:34,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:34,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:34,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810316813] [2022-12-12 00:17:34,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810316813] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:34,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:34,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:34,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132484787] [2022-12-12 00:17:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:34,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:34,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:34,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:34,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:34,558 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:34,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 1027 transitions, 93900 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:34,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:34,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:34,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:38,740 INFO L130 PetriNetUnfolder]: 912/2760 cut-off events. [2022-12-12 00:17:38,740 INFO L131 PetriNetUnfolder]: For 392900/394915 co-relation queries the response was YES. [2022-12-12 00:17:38,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93873 conditions, 2760 events. 912/2760 cut-off events. For 392900/394915 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19246 event pairs, 5 based on Foata normal form. 18/2697 useless extension candidates. Maximal degree in co-relation 80607. Up to 957 conditions per place. [2022-12-12 00:17:38,787 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 851 selfloop transitions, 110 changer transitions 47/1088 dead transitions. [2022-12-12 00:17:38,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 1088 transitions, 102762 flow [2022-12-12 00:17:38,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:17:38,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:17:38,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3040 transitions. [2022-12-12 00:17:38,789 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5823754789272031 [2022-12-12 00:17:38,790 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 403 predicate places. [2022-12-12 00:17:38,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 1088 transitions, 102762 flow [2022-12-12 00:17:38,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 518 places, 1041 transitions, 97564 flow [2022-12-12 00:17:38,850 INFO L495 AbstractCegarLoop]: Abstraction has has 518 places, 1041 transitions, 97564 flow [2022-12-12 00:17:38,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:38,851 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:38,851 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:38,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-12 00:17:38,851 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:38,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:38,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1767538992, now seen corresponding path program 27 times [2022-12-12 00:17:38,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:38,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183301017] [2022-12-12 00:17:38,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:38,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:39,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:39,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183301017] [2022-12-12 00:17:39,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183301017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:39,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:39,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:39,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257987816] [2022-12-12 00:17:39,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:39,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:39,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:39,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:39,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:39,412 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:39,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 1041 transitions, 97564 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:39,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:39,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:39,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:43,507 INFO L130 PetriNetUnfolder]: 924/2803 cut-off events. [2022-12-12 00:17:43,507 INFO L131 PetriNetUnfolder]: For 416098/418416 co-relation queries the response was YES. [2022-12-12 00:17:43,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97603 conditions, 2803 events. 924/2803 cut-off events. For 416098/418416 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19693 event pairs, 6 based on Foata normal form. 22/2743 useless extension candidates. Maximal degree in co-relation 88849. Up to 977 conditions per place. [2022-12-12 00:17:43,553 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 861 selfloop transitions, 114 changer transitions 57/1112 dead transitions. [2022-12-12 00:17:43,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 1112 transitions, 107413 flow [2022-12-12 00:17:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:17:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:17:43,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3667 transitions. [2022-12-12 00:17:43,555 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5747648902821316 [2022-12-12 00:17:43,556 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 430 predicate places. [2022-12-12 00:17:43,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 561 places, 1112 transitions, 107413 flow [2022-12-12 00:17:43,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 536 places, 1055 transitions, 100866 flow [2022-12-12 00:17:43,613 INFO L495 AbstractCegarLoop]: Abstraction has has 536 places, 1055 transitions, 100866 flow [2022-12-12 00:17:43,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:43,614 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:43,614 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:43,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-12 00:17:43,614 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:43,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1598936228, now seen corresponding path program 28 times [2022-12-12 00:17:43,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:43,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400350592] [2022-12-12 00:17:43,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:43,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:44,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:44,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400350592] [2022-12-12 00:17:44,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400350592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:44,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:44,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:44,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925065757] [2022-12-12 00:17:44,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:44,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:44,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:44,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:44,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:44,085 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:44,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 1055 transitions, 100866 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:44,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:44,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:44,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:48,244 INFO L130 PetriNetUnfolder]: 906/2745 cut-off events. [2022-12-12 00:17:48,244 INFO L131 PetriNetUnfolder]: For 409512/411905 co-relation queries the response was YES. [2022-12-12 00:17:48,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97331 conditions, 2745 events. 906/2745 cut-off events. For 409512/411905 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19156 event pairs, 5 based on Foata normal form. 19/2683 useless extension candidates. Maximal degree in co-relation 83500. Up to 946 conditions per place. [2022-12-12 00:17:48,294 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 848 selfloop transitions, 96 changer transitions 53/1077 dead transitions. [2022-12-12 00:17:48,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 1077 transitions, 105394 flow [2022-12-12 00:17:48,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:17:48,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:17:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3188 transitions. [2022-12-12 00:17:48,297 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5785843920145191 [2022-12-12 00:17:48,297 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 442 predicate places. [2022-12-12 00:17:48,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 573 places, 1077 transitions, 105394 flow [2022-12-12 00:17:48,357 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 538 places, 1024 transitions, 99296 flow [2022-12-12 00:17:48,358 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 1024 transitions, 99296 flow [2022-12-12 00:17:48,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:48,358 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:48,358 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:48,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-12 00:17:48,358 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:48,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2127846672, now seen corresponding path program 29 times [2022-12-12 00:17:48,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:48,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998496513] [2022-12-12 00:17:48,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:48,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:48,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:48,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:48,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998496513] [2022-12-12 00:17:48,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998496513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:48,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:48,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:48,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698470624] [2022-12-12 00:17:48,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:48,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:48,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:48,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:48,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:48,956 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:48,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 1024 transitions, 99296 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:48,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:48,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:48,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:53,999 INFO L130 PetriNetUnfolder]: 923/2819 cut-off events. [2022-12-12 00:17:53,999 INFO L131 PetriNetUnfolder]: For 425729/428103 co-relation queries the response was YES. [2022-12-12 00:17:54,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101638 conditions, 2819 events. 923/2819 cut-off events. For 425729/428103 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19851 event pairs, 6 based on Foata normal form. 20/2751 useless extension candidates. Maximal degree in co-relation 92610. Up to 974 conditions per place. [2022-12-12 00:17:54,050 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 871 selfloop transitions, 109 changer transitions 54/1114 dead transitions. [2022-12-12 00:17:54,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 1114 transitions, 111922 flow [2022-12-12 00:17:54,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 00:17:54,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 00:17:54,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3510 transitions. [2022-12-12 00:17:54,053 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5763546798029556 [2022-12-12 00:17:54,054 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 448 predicate places. [2022-12-12 00:17:54,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 579 places, 1114 transitions, 111922 flow [2022-12-12 00:17:54,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 556 places, 1060 transitions, 105582 flow [2022-12-12 00:17:54,205 INFO L495 AbstractCegarLoop]: Abstraction has has 556 places, 1060 transitions, 105582 flow [2022-12-12 00:17:54,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:54,205 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:54,206 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:54,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-12 00:17:54,206 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:54,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:54,206 INFO L85 PathProgramCache]: Analyzing trace with hash 33264074, now seen corresponding path program 30 times [2022-12-12 00:17:54,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:54,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079029964] [2022-12-12 00:17:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:54,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:17:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:17:54,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:17:54,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079029964] [2022-12-12 00:17:54,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079029964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:17:54,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:17:54,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:17:54,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505055250] [2022-12-12 00:17:54,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:17:54,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:17:54,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:17:54,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:17:54,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:17:54,757 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:17:54,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1060 transitions, 105582 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:54,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:17:54,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:17:54,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:17:59,644 INFO L130 PetriNetUnfolder]: 937/2804 cut-off events. [2022-12-12 00:17:59,644 INFO L131 PetriNetUnfolder]: For 428117/430819 co-relation queries the response was YES. [2022-12-12 00:17:59,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104437 conditions, 2804 events. 937/2804 cut-off events. For 428117/430819 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19472 event pairs, 5 based on Foata normal form. 18/2737 useless extension candidates. Maximal degree in co-relation 90323. Up to 979 conditions per place. [2022-12-12 00:17:59,711 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 875 selfloop transitions, 115 changer transitions 47/1117 dead transitions. [2022-12-12 00:17:59,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1117 transitions, 114422 flow [2022-12-12 00:17:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:17:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:17:59,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3196 transitions. [2022-12-12 00:17:59,713 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5800362976406533 [2022-12-12 00:17:59,713 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 462 predicate places. [2022-12-12 00:17:59,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 593 places, 1117 transitions, 114422 flow [2022-12-12 00:17:59,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 575 places, 1070 transitions, 108848 flow [2022-12-12 00:17:59,792 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 1070 transitions, 108848 flow [2022-12-12 00:17:59,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:17:59,792 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:17:59,792 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:17:59,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-12 00:17:59,792 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:17:59,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:17:59,793 INFO L85 PathProgramCache]: Analyzing trace with hash -597246866, now seen corresponding path program 31 times [2022-12-12 00:17:59,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:17:59,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231151926] [2022-12-12 00:17:59,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:17:59,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:17:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:00,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:00,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231151926] [2022-12-12 00:18:00,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231151926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:00,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:00,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:00,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096062110] [2022-12-12 00:18:00,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:00,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:00,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:00,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:00,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:00,434 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:00,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 1070 transitions, 108848 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:00,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:00,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:00,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:05,338 INFO L130 PetriNetUnfolder]: 920/2783 cut-off events. [2022-12-12 00:18:05,338 INFO L131 PetriNetUnfolder]: For 435459/438194 co-relation queries the response was YES. [2022-12-12 00:18:05,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105576 conditions, 2783 events. 920/2783 cut-off events. For 435459/438194 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19472 event pairs, 7 based on Foata normal form. 18/2719 useless extension candidates. Maximal degree in co-relation 91100. Up to 970 conditions per place. [2022-12-12 00:18:05,405 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 874 selfloop transitions, 104 changer transitions 51/1109 dead transitions. [2022-12-12 00:18:05,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1109 transitions, 115468 flow [2022-12-12 00:18:05,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:18:05,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:18:05,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3115 transitions. [2022-12-12 00:18:05,408 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5806150978564771 [2022-12-12 00:18:05,408 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 480 predicate places. [2022-12-12 00:18:05,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 611 places, 1109 transitions, 115468 flow [2022-12-12 00:18:05,492 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 584 places, 1058 transitions, 109210 flow [2022-12-12 00:18:05,492 INFO L495 AbstractCegarLoop]: Abstraction has has 584 places, 1058 transitions, 109210 flow [2022-12-12 00:18:05,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:05,493 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:05,493 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:05,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-12 00:18:05,493 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:05,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:05,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1179184408, now seen corresponding path program 32 times [2022-12-12 00:18:05,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:05,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80551134] [2022-12-12 00:18:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:05,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:06,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:06,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80551134] [2022-12-12 00:18:06,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80551134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:06,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:06,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:06,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115177116] [2022-12-12 00:18:06,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:06,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:06,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:06,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:06,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:06,100 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:06,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 584 places, 1058 transitions, 109210 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:06,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:06,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:06,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:11,144 INFO L130 PetriNetUnfolder]: 927/2833 cut-off events. [2022-12-12 00:18:11,145 INFO L131 PetriNetUnfolder]: For 455026/457737 co-relation queries the response was YES. [2022-12-12 00:18:11,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108679 conditions, 2833 events. 927/2833 cut-off events. For 455026/457737 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 19980 event pairs, 6 based on Foata normal form. 18/2763 useless extension candidates. Maximal degree in co-relation 93412. Up to 982 conditions per place. [2022-12-12 00:18:11,201 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 875 selfloop transitions, 109 changer transitions 57/1121 dead transitions. [2022-12-12 00:18:11,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 1121 transitions, 118879 flow [2022-12-12 00:18:11,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:18:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:18:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3587 transitions. [2022-12-12 00:18:11,205 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5753007217321572 [2022-12-12 00:18:11,205 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 495 predicate places. [2022-12-12 00:18:11,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 626 places, 1121 transitions, 118879 flow [2022-12-12 00:18:11,274 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 602 places, 1064 transitions, 111762 flow [2022-12-12 00:18:11,275 INFO L495 AbstractCegarLoop]: Abstraction has has 602 places, 1064 transitions, 111762 flow [2022-12-12 00:18:11,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:11,275 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:11,275 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:11,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-12 00:18:11,275 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:11,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:11,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1544293760, now seen corresponding path program 33 times [2022-12-12 00:18:11,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:11,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311479817] [2022-12-12 00:18:11,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:11,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:11,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:11,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311479817] [2022-12-12 00:18:11,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311479817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:11,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:11,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:11,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398429919] [2022-12-12 00:18:11,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:11,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:11,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:11,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:11,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:11,864 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:11,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 1064 transitions, 111762 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:11,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:11,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:11,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:16,764 INFO L130 PetriNetUnfolder]: 931/2800 cut-off events. [2022-12-12 00:18:16,764 INFO L131 PetriNetUnfolder]: For 462087/465015 co-relation queries the response was YES. [2022-12-12 00:18:16,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110021 conditions, 2800 events. 931/2800 cut-off events. For 462087/465015 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19527 event pairs, 8 based on Foata normal form. 18/2732 useless extension candidates. Maximal degree in co-relation 94835. Up to 969 conditions per place. [2022-12-12 00:18:16,821 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 869 selfloop transitions, 107 changer transitions 47/1103 dead transitions. [2022-12-12 00:18:16,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 1103 transitions, 118520 flow [2022-12-12 00:18:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:18:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:18:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3113 transitions. [2022-12-12 00:18:16,826 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.580242311276794 [2022-12-12 00:18:16,827 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 507 predicate places. [2022-12-12 00:18:16,827 INFO L82 GeneralOperation]: Start removeDead. Operand has 638 places, 1103 transitions, 118520 flow [2022-12-12 00:18:16,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 621 places, 1056 transitions, 112664 flow [2022-12-12 00:18:16,898 INFO L495 AbstractCegarLoop]: Abstraction has has 621 places, 1056 transitions, 112664 flow [2022-12-12 00:18:16,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:16,898 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:16,898 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:16,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-12 00:18:16,898 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:16,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:16,898 INFO L85 PathProgramCache]: Analyzing trace with hash -8347548, now seen corresponding path program 34 times [2022-12-12 00:18:16,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:16,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898009081] [2022-12-12 00:18:16,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:16,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:17,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:17,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898009081] [2022-12-12 00:18:17,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898009081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:17,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:17,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:17,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560491429] [2022-12-12 00:18:17,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:17,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:17,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:17,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:17,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:17,591 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:17,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 1056 transitions, 112664 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:17,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:17,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:17,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:21,801 INFO L130 PetriNetUnfolder]: 904/2772 cut-off events. [2022-12-12 00:18:21,802 INFO L131 PetriNetUnfolder]: For 468328/470862 co-relation queries the response was YES. [2022-12-12 00:18:21,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109626 conditions, 2772 events. 904/2772 cut-off events. For 468328/470862 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19436 event pairs, 6 based on Foata normal form. 18/2702 useless extension candidates. Maximal degree in co-relation 94501. Up to 944 conditions per place. [2022-12-12 00:18:21,856 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 856 selfloop transitions, 85 changer transitions 54/1075 dead transitions. [2022-12-12 00:18:21,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 1075 transitions, 117188 flow [2022-12-12 00:18:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:18:21,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:18:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3182 transitions. [2022-12-12 00:18:21,858 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5774954627949184 [2022-12-12 00:18:21,859 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 527 predicate places. [2022-12-12 00:18:21,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 658 places, 1075 transitions, 117188 flow [2022-12-12 00:18:21,938 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 610 places, 1021 transitions, 110354 flow [2022-12-12 00:18:21,939 INFO L495 AbstractCegarLoop]: Abstraction has has 610 places, 1021 transitions, 110354 flow [2022-12-12 00:18:21,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:21,939 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:21,939 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:21,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-12 00:18:21,939 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:21,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:21,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1289927452, now seen corresponding path program 35 times [2022-12-12 00:18:21,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:21,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151066939] [2022-12-12 00:18:21,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:21,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:22,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:22,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151066939] [2022-12-12 00:18:22,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151066939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:22,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:22,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:22,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643783966] [2022-12-12 00:18:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:22,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:22,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:22,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:22,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:22,680 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:22,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 1021 transitions, 110354 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:22,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:22,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:22,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:26,986 INFO L130 PetriNetUnfolder]: 910/2785 cut-off events. [2022-12-12 00:18:26,986 INFO L131 PetriNetUnfolder]: For 480490/483407 co-relation queries the response was YES. [2022-12-12 00:18:27,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112572 conditions, 2785 events. 910/2785 cut-off events. For 480490/483407 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19561 event pairs, 7 based on Foata normal form. 16/2713 useless extension candidates. Maximal degree in co-relation 97077. Up to 956 conditions per place. [2022-12-12 00:18:27,042 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 828 selfloop transitions, 128 changer transitions 49/1085 dead transitions. [2022-12-12 00:18:27,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 645 places, 1085 transitions, 120773 flow [2022-12-12 00:18:27,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:18:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:18:27,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3037 transitions. [2022-12-12 00:18:27,044 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.581800766283525 [2022-12-12 00:18:27,045 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 514 predicate places. [2022-12-12 00:18:27,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 645 places, 1085 transitions, 120773 flow [2022-12-12 00:18:27,153 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 629 places, 1036 transitions, 114415 flow [2022-12-12 00:18:27,153 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 1036 transitions, 114415 flow [2022-12-12 00:18:27,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:27,154 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:27,154 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:27,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-12 00:18:27,154 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:27,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:27,155 INFO L85 PathProgramCache]: Analyzing trace with hash 608739974, now seen corresponding path program 36 times [2022-12-12 00:18:27,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:27,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564987352] [2022-12-12 00:18:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:27,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:27,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:27,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564987352] [2022-12-12 00:18:27,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564987352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:27,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:27,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:27,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214298424] [2022-12-12 00:18:27,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:27,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:27,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:27,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:27,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:27,913 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:27,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 1036 transitions, 114415 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:27,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:27,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:27,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:32,297 INFO L130 PetriNetUnfolder]: 908/2782 cut-off events. [2022-12-12 00:18:32,297 INFO L131 PetriNetUnfolder]: For 486949/489776 co-relation queries the response was YES. [2022-12-12 00:18:32,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114415 conditions, 2782 events. 908/2782 cut-off events. For 486949/489776 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19497 event pairs, 5 based on Foata normal form. 16/2710 useless extension candidates. Maximal degree in co-relation 98862. Up to 954 conditions per place. [2022-12-12 00:18:32,356 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 829 selfloop transitions, 125 changer transitions 49/1083 dead transitions. [2022-12-12 00:18:32,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 666 places, 1083 transitions, 122468 flow [2022-12-12 00:18:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:18:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:18:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3187 transitions. [2022-12-12 00:18:32,363 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5784029038112523 [2022-12-12 00:18:32,363 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 535 predicate places. [2022-12-12 00:18:32,363 INFO L82 GeneralOperation]: Start removeDead. Operand has 666 places, 1083 transitions, 122468 flow [2022-12-12 00:18:32,435 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 644 places, 1034 transitions, 116015 flow [2022-12-12 00:18:32,436 INFO L495 AbstractCegarLoop]: Abstraction has has 644 places, 1034 transitions, 116015 flow [2022-12-12 00:18:32,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:32,436 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:32,436 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:32,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-12 00:18:32,436 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:32,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:32,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1221653836, now seen corresponding path program 37 times [2022-12-12 00:18:32,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:32,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137543932] [2022-12-12 00:18:32,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:32,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:33,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:33,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137543932] [2022-12-12 00:18:33,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137543932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:33,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:33,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:33,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045994881] [2022-12-12 00:18:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:33,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:33,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:33,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:33,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:33,094 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:33,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 1034 transitions, 116015 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:33,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:33,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:33,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:37,817 INFO L130 PetriNetUnfolder]: 904/2746 cut-off events. [2022-12-12 00:18:37,817 INFO L131 PetriNetUnfolder]: For 489396/492295 co-relation queries the response was YES. [2022-12-12 00:18:37,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115829 conditions, 2746 events. 904/2746 cut-off events. For 489396/492295 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19115 event pairs, 7 based on Foata normal form. 16/2680 useless extension candidates. Maximal degree in co-relation 100220. Up to 947 conditions per place. [2022-12-12 00:18:37,875 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 824 selfloop transitions, 114 changer transitions 58/1076 dead transitions. [2022-12-12 00:18:37,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 1076 transitions, 123365 flow [2022-12-12 00:18:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:18:37,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:18:37,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3645 transitions. [2022-12-12 00:18:37,878 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5713166144200627 [2022-12-12 00:18:37,879 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 556 predicate places. [2022-12-12 00:18:37,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 687 places, 1076 transitions, 123365 flow [2022-12-12 00:18:37,948 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 649 places, 1018 transitions, 115660 flow [2022-12-12 00:18:37,948 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 1018 transitions, 115660 flow [2022-12-12 00:18:37,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:37,948 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:37,948 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:37,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-12 00:18:37,949 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:37,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:37,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1478085420, now seen corresponding path program 38 times [2022-12-12 00:18:37,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:37,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362116263] [2022-12-12 00:18:37,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:37,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:38,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:38,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362116263] [2022-12-12 00:18:38,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362116263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:38,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:38,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:38,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421578093] [2022-12-12 00:18:38,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:38,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:38,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:38,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:38,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:38,492 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:38,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 1018 transitions, 115660 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:38,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:38,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:38,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:43,017 INFO L130 PetriNetUnfolder]: 899/2752 cut-off events. [2022-12-12 00:18:43,017 INFO L131 PetriNetUnfolder]: For 500000/502971 co-relation queries the response was YES. [2022-12-12 00:18:43,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117378 conditions, 2752 events. 899/2752 cut-off events. For 500000/502971 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19272 event pairs, 9 based on Foata normal form. 16/2685 useless extension candidates. Maximal degree in co-relation 101556. Up to 941 conditions per place. [2022-12-12 00:18:43,136 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 825 selfloop transitions, 109 changer transitions 54/1068 dead transitions. [2022-12-12 00:18:43,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 1068 transitions, 124290 flow [2022-12-12 00:18:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:18:43,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:18:43,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3582 transitions. [2022-12-12 00:18:43,139 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5744987971130714 [2022-12-12 00:18:43,140 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 560 predicate places. [2022-12-12 00:18:43,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 691 places, 1068 transitions, 124290 flow [2022-12-12 00:18:43,208 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 667 places, 1014 transitions, 116978 flow [2022-12-12 00:18:43,208 INFO L495 AbstractCegarLoop]: Abstraction has has 667 places, 1014 transitions, 116978 flow [2022-12-12 00:18:43,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:43,209 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:43,209 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:43,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-12 00:18:43,209 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:43,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:43,210 INFO L85 PathProgramCache]: Analyzing trace with hash 46239738, now seen corresponding path program 39 times [2022-12-12 00:18:43,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:43,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61600362] [2022-12-12 00:18:43,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:43,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:43,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:43,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61600362] [2022-12-12 00:18:43,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61600362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:43,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:43,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:43,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077261258] [2022-12-12 00:18:43,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:43,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:43,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:43,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:43,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:43,688 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:43,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 667 places, 1014 transitions, 116978 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:43,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:43,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:43,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:48,305 INFO L130 PetriNetUnfolder]: 902/2756 cut-off events. [2022-12-12 00:18:48,305 INFO L131 PetriNetUnfolder]: For 512266/515740 co-relation queries the response was YES. [2022-12-12 00:18:48,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119951 conditions, 2756 events. 902/2756 cut-off events. For 512266/515740 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19367 event pairs, 6 based on Foata normal form. 20/2688 useless extension candidates. Maximal degree in co-relation 103598. Up to 945 conditions per place. [2022-12-12 00:18:48,364 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 831 selfloop transitions, 114 changer transitions 49/1074 dead transitions. [2022-12-12 00:18:48,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 1074 transitions, 127247 flow [2022-12-12 00:18:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:18:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:18:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3116 transitions. [2022-12-12 00:18:48,366 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5808014911463187 [2022-12-12 00:18:48,366 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 572 predicate places. [2022-12-12 00:18:48,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 703 places, 1074 transitions, 127247 flow [2022-12-12 00:18:48,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 686 places, 1025 transitions, 120497 flow [2022-12-12 00:18:48,441 INFO L495 AbstractCegarLoop]: Abstraction has has 686 places, 1025 transitions, 120497 flow [2022-12-12 00:18:48,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:48,442 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:48,442 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:48,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-12 00:18:48,442 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:48,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:48,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1764582458, now seen corresponding path program 40 times [2022-12-12 00:18:48,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:48,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713077701] [2022-12-12 00:18:48,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:48,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:48,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:48,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713077701] [2022-12-12 00:18:48,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713077701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:48,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:48,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:48,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739569930] [2022-12-12 00:18:48,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:48,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:48,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:48,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:48,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:48,941 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:48,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 686 places, 1025 transitions, 120497 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:48,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:48,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:48,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:53,966 INFO L130 PetriNetUnfolder]: 914/2781 cut-off events. [2022-12-12 00:18:53,966 INFO L131 PetriNetUnfolder]: For 526087/529699 co-relation queries the response was YES. [2022-12-12 00:18:53,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122575 conditions, 2781 events. 914/2781 cut-off events. For 526087/529699 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19451 event pairs, 6 based on Foata normal form. 20/2710 useless extension candidates. Maximal degree in co-relation 106001. Up to 946 conditions per place. [2022-12-12 00:18:54,044 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 828 selfloop transitions, 108 changer transitions 57/1073 dead transitions. [2022-12-12 00:18:54,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 727 places, 1073 transitions, 129071 flow [2022-12-12 00:18:54,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 00:18:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 00:18:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3506 transitions. [2022-12-12 00:18:54,046 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5756978653530378 [2022-12-12 00:18:54,046 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 596 predicate places. [2022-12-12 00:18:54,046 INFO L82 GeneralOperation]: Start removeDead. Operand has 727 places, 1073 transitions, 129071 flow [2022-12-12 00:18:54,121 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 704 places, 1016 transitions, 121042 flow [2022-12-12 00:18:54,122 INFO L495 AbstractCegarLoop]: Abstraction has has 704 places, 1016 transitions, 121042 flow [2022-12-12 00:18:54,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:54,122 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:54,122 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:54,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-12-12 00:18:54,122 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:54,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:54,123 INFO L85 PathProgramCache]: Analyzing trace with hash -554601806, now seen corresponding path program 41 times [2022-12-12 00:18:54,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:54,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916737353] [2022-12-12 00:18:54,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:54,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:54,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:54,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916737353] [2022-12-12 00:18:54,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916737353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:54,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:54,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:54,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156884034] [2022-12-12 00:18:54,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:54,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:54,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:54,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:54,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:54,771 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:54,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 704 places, 1016 transitions, 121042 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:54,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:54,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:54,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:18:59,192 INFO L130 PetriNetUnfolder]: 903/2726 cut-off events. [2022-12-12 00:18:59,193 INFO L131 PetriNetUnfolder]: For 530573/533917 co-relation queries the response was YES. [2022-12-12 00:18:59,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122842 conditions, 2726 events. 903/2726 cut-off events. For 530573/533917 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18917 event pairs, 6 based on Foata normal form. 18/2659 useless extension candidates. Maximal degree in co-relation 111526. Up to 928 conditions per place. [2022-12-12 00:18:59,251 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 824 selfloop transitions, 99 changer transitions 50/1053 dead transitions. [2022-12-12 00:18:59,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 741 places, 1053 transitions, 127996 flow [2022-12-12 00:18:59,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:18:59,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:18:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3185 transitions. [2022-12-12 00:18:59,253 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5780399274047187 [2022-12-12 00:18:59,253 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 610 predicate places. [2022-12-12 00:18:59,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 741 places, 1053 transitions, 127996 flow [2022-12-12 00:18:59,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 713 places, 1003 transitions, 120887 flow [2022-12-12 00:18:59,326 INFO L495 AbstractCegarLoop]: Abstraction has has 713 places, 1003 transitions, 120887 flow [2022-12-12 00:18:59,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:59,326 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:59,326 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:59,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-12-12 00:18:59,326 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:18:59,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1296424536, now seen corresponding path program 42 times [2022-12-12 00:18:59,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:59,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762715828] [2022-12-12 00:18:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:59,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:18:59,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:18:59,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:18:59,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762715828] [2022-12-12 00:18:59,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762715828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:18:59,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:18:59,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:18:59,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899419680] [2022-12-12 00:18:59,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:18:59,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:18:59,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:18:59,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:18:59,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:18:59,888 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:18:59,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 713 places, 1003 transitions, 120887 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:18:59,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:18:59,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:18:59,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:04,461 INFO L130 PetriNetUnfolder]: 899/2748 cut-off events. [2022-12-12 00:19:04,462 INFO L131 PetriNetUnfolder]: For 551499/554947 co-relation queries the response was YES. [2022-12-12 00:19:04,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124155 conditions, 2748 events. 899/2748 cut-off events. For 551499/554947 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19151 event pairs, 6 based on Foata normal form. 18/2675 useless extension candidates. Maximal degree in co-relation 107654. Up to 919 conditions per place. [2022-12-12 00:19:04,524 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 812 selfloop transitions, 103 changer transitions 49/1044 dead transitions. [2022-12-12 00:19:04,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 750 places, 1044 transitions, 128567 flow [2022-12-12 00:19:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:19:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:19:04,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3188 transitions. [2022-12-12 00:19:04,527 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5785843920145191 [2022-12-12 00:19:04,528 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 619 predicate places. [2022-12-12 00:19:04,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 750 places, 1044 transitions, 128567 flow [2022-12-12 00:19:04,607 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 732 places, 995 transitions, 121523 flow [2022-12-12 00:19:04,607 INFO L495 AbstractCegarLoop]: Abstraction has has 732 places, 995 transitions, 121523 flow [2022-12-12 00:19:04,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:04,607 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:04,608 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:04,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-12-12 00:19:04,608 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:04,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:04,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1831355924, now seen corresponding path program 43 times [2022-12-12 00:19:04,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:04,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784551156] [2022-12-12 00:19:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:04,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:05,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:05,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784551156] [2022-12-12 00:19:05,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784551156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:05,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:05,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959978713] [2022-12-12 00:19:05,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:05,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:05,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:05,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:05,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:05,108 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:05,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 732 places, 995 transitions, 121523 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:05,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:05,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:05,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:09,453 INFO L130 PetriNetUnfolder]: 882/2693 cut-off events. [2022-12-12 00:19:09,453 INFO L131 PetriNetUnfolder]: For 530957/534479 co-relation queries the response was YES. [2022-12-12 00:19:09,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123493 conditions, 2693 events. 882/2693 cut-off events. For 530957/534479 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18687 event pairs, 5 based on Foata normal form. 18/2620 useless extension candidates. Maximal degree in co-relation 107406. Up to 894 conditions per place. [2022-12-12 00:19:09,516 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 796 selfloop transitions, 77 changer transitions 56/1009 dead transitions. [2022-12-12 00:19:09,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 768 places, 1009 transitions, 125657 flow [2022-12-12 00:19:09,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:19:09,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:19:09,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3098 transitions. [2022-12-12 00:19:09,519 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5774464119291706 [2022-12-12 00:19:09,519 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 637 predicate places. [2022-12-12 00:19:09,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 768 places, 1009 transitions, 125657 flow [2022-12-12 00:19:09,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 703 places, 953 transitions, 117760 flow [2022-12-12 00:19:09,593 INFO L495 AbstractCegarLoop]: Abstraction has has 703 places, 953 transitions, 117760 flow [2022-12-12 00:19:09,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:09,593 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:09,594 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:09,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-12-12 00:19:09,595 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:09,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:09,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1386758822, now seen corresponding path program 44 times [2022-12-12 00:19:09,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:09,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526688543] [2022-12-12 00:19:09,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:09,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:10,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:10,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:10,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526688543] [2022-12-12 00:19:10,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526688543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:10,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:10,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:10,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683369384] [2022-12-12 00:19:10,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:10,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:10,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:10,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:10,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:10,100 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:10,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 953 transitions, 117760 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:10,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:10,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:10,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:15,207 INFO L130 PetriNetUnfolder]: 905/2760 cut-off events. [2022-12-12 00:19:15,207 INFO L131 PetriNetUnfolder]: For 570514/574124 co-relation queries the response was YES. [2022-12-12 00:19:15,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130312 conditions, 2760 events. 905/2760 cut-off events. For 570514/574124 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19423 event pairs, 4 based on Foata normal form. 20/2692 useless extension candidates. Maximal degree in co-relation 119229. Up to 946 conditions per place. [2022-12-12 00:19:15,267 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 819 selfloop transitions, 105 changer transitions 69/1073 dead transitions. [2022-12-12 00:19:15,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 751 places, 1073 transitions, 136698 flow [2022-12-12 00:19:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 00:19:15,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 00:19:15,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4061 transitions. [2022-12-12 00:19:15,270 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5715693173821252 [2022-12-12 00:19:15,272 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 620 predicate places. [2022-12-12 00:19:15,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 751 places, 1073 transitions, 136698 flow [2022-12-12 00:19:15,346 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 720 places, 1004 transitions, 126816 flow [2022-12-12 00:19:15,346 INFO L495 AbstractCegarLoop]: Abstraction has has 720 places, 1004 transitions, 126816 flow [2022-12-12 00:19:15,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:15,347 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:15,347 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:15,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-12-12 00:19:15,348 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:15,348 INFO L85 PathProgramCache]: Analyzing trace with hash 859635298, now seen corresponding path program 45 times [2022-12-12 00:19:15,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:15,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921207164] [2022-12-12 00:19:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:15,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:16,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:16,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:16,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921207164] [2022-12-12 00:19:16,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921207164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:16,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:16,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:16,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086736754] [2022-12-12 00:19:16,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:16,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:16,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:16,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:16,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:16,189 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:16,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 720 places, 1004 transitions, 126816 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:16,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:16,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:16,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:20,667 INFO L130 PetriNetUnfolder]: 916/2774 cut-off events. [2022-12-12 00:19:20,668 INFO L131 PetriNetUnfolder]: For 583839/588035 co-relation queries the response was YES. [2022-12-12 00:19:20,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133139 conditions, 2774 events. 916/2774 cut-off events. For 583839/588035 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19341 event pairs, 8 based on Foata normal form. 18/2701 useless extension candidates. Maximal degree in co-relation 115480. Up to 953 conditions per place. [2022-12-12 00:19:20,731 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 830 selfloop transitions, 117 changer transitions 49/1076 dead transitions. [2022-12-12 00:19:20,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 757 places, 1076 transitions, 139769 flow [2022-12-12 00:19:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:19:20,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:19:20,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3193 transitions. [2022-12-12 00:19:20,734 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5794918330308529 [2022-12-12 00:19:20,735 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 626 predicate places. [2022-12-12 00:19:20,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 757 places, 1076 transitions, 139769 flow [2022-12-12 00:19:20,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 739 places, 1027 transitions, 132431 flow [2022-12-12 00:19:20,813 INFO L495 AbstractCegarLoop]: Abstraction has has 739 places, 1027 transitions, 132431 flow [2022-12-12 00:19:20,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:20,814 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:20,814 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:20,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-12-12 00:19:20,814 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:20,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash -750112812, now seen corresponding path program 46 times [2022-12-12 00:19:20,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:20,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222425641] [2022-12-12 00:19:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:20,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:21,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:21,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222425641] [2022-12-12 00:19:21,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222425641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:21,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:21,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:21,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237375595] [2022-12-12 00:19:21,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:21,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:21,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:21,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:21,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:21,486 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:21,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 739 places, 1027 transitions, 132431 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:21,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:21,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:21,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:26,307 INFO L130 PetriNetUnfolder]: 919/2769 cut-off events. [2022-12-12 00:19:26,307 INFO L131 PetriNetUnfolder]: For 599261/603505 co-relation queries the response was YES. [2022-12-12 00:19:26,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135757 conditions, 2769 events. 919/2769 cut-off events. For 599261/603505 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19275 event pairs, 8 based on Foata normal form. 20/2704 useless extension candidates. Maximal degree in co-relation 117547. Up to 958 conditions per place. [2022-12-12 00:19:26,370 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 834 selfloop transitions, 112 changer transitions 57/1083 dead transitions. [2022-12-12 00:19:26,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 782 places, 1083 transitions, 142575 flow [2022-12-12 00:19:26,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:19:26,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:19:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3661 transitions. [2022-12-12 00:19:26,372 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5738244514106583 [2022-12-12 00:19:26,372 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 651 predicate places. [2022-12-12 00:19:26,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 782 places, 1083 transitions, 142575 flow [2022-12-12 00:19:26,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 757 places, 1026 transitions, 133862 flow [2022-12-12 00:19:26,453 INFO L495 AbstractCegarLoop]: Abstraction has has 757 places, 1026 transitions, 133862 flow [2022-12-12 00:19:26,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:26,454 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:26,454 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:26,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-12-12 00:19:26,454 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:26,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:26,454 INFO L85 PathProgramCache]: Analyzing trace with hash 892489132, now seen corresponding path program 47 times [2022-12-12 00:19:26,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:26,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798842642] [2022-12-12 00:19:26,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:26,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:27,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:27,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:27,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798842642] [2022-12-12 00:19:27,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798842642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:27,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:27,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:27,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202885646] [2022-12-12 00:19:27,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:27,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:27,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:27,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:27,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:27,019 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:27,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 757 places, 1026 transitions, 133862 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:27,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:27,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:27,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:31,401 INFO L130 PetriNetUnfolder]: 903/2753 cut-off events. [2022-12-12 00:19:31,401 INFO L131 PetriNetUnfolder]: For 605720/609853 co-relation queries the response was YES. [2022-12-12 00:19:31,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135187 conditions, 2753 events. 903/2753 cut-off events. For 605720/609853 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19233 event pairs, 9 based on Foata normal form. 19/2680 useless extension candidates. Maximal degree in co-relation 122977. Up to 931 conditions per place. [2022-12-12 00:19:31,460 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 824 selfloop transitions, 97 changer transitions 52/1053 dead transitions. [2022-12-12 00:19:31,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 1053 transitions, 139891 flow [2022-12-12 00:19:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:19:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:19:31,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3027 transitions. [2022-12-12 00:19:31,462 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5798850574712644 [2022-12-12 00:19:31,463 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 661 predicate places. [2022-12-12 00:19:31,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 792 places, 1053 transitions, 139891 flow [2022-12-12 00:19:31,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 759 places, 1001 transitions, 131960 flow [2022-12-12 00:19:31,588 INFO L495 AbstractCegarLoop]: Abstraction has has 759 places, 1001 transitions, 131960 flow [2022-12-12 00:19:31,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:31,588 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:31,589 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:31,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-12-12 00:19:31,589 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:31,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:31,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1003795400, now seen corresponding path program 48 times [2022-12-12 00:19:31,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:31,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996568537] [2022-12-12 00:19:31,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:31,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:32,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:32,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996568537] [2022-12-12 00:19:32,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996568537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:32,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:32,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:32,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363156454] [2022-12-12 00:19:32,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:32,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:32,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:32,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:32,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:32,032 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:32,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 1001 transitions, 131960 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:32,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:32,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:32,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:37,391 INFO L130 PetriNetUnfolder]: 908/2816 cut-off events. [2022-12-12 00:19:37,392 INFO L131 PetriNetUnfolder]: For 654650/658555 co-relation queries the response was YES. [2022-12-12 00:19:37,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141267 conditions, 2816 events. 908/2816 cut-off events. For 654650/658555 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 19951 event pairs, 9 based on Foata normal form. 18/2751 useless extension candidates. Maximal degree in co-relation 120104. Up to 974 conditions per place. [2022-12-12 00:19:37,454 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 835 selfloop transitions, 105 changer transitions 77/1097 dead transitions. [2022-12-12 00:19:37,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 811 places, 1097 transitions, 148770 flow [2022-12-12 00:19:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 00:19:37,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 00:19:37,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4379 transitions. [2022-12-12 00:19:37,456 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.569811320754717 [2022-12-12 00:19:37,456 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 680 predicate places. [2022-12-12 00:19:37,456 INFO L82 GeneralOperation]: Start removeDead. Operand has 811 places, 1097 transitions, 148770 flow [2022-12-12 00:19:37,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 775 places, 1020 transitions, 137355 flow [2022-12-12 00:19:37,609 INFO L495 AbstractCegarLoop]: Abstraction has has 775 places, 1020 transitions, 137355 flow [2022-12-12 00:19:37,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:37,610 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:37,610 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:37,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-12-12 00:19:37,610 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:37,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:37,610 INFO L85 PathProgramCache]: Analyzing trace with hash 230079746, now seen corresponding path program 49 times [2022-12-12 00:19:37,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:37,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592132422] [2022-12-12 00:19:37,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:37,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:38,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:38,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:38,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592132422] [2022-12-12 00:19:38,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592132422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:38,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:38,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:38,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818520158] [2022-12-12 00:19:38,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:38,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:38,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:38,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:38,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:38,095 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:38,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 1020 transitions, 137355 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:38,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:38,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:38,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:42,498 INFO L130 PetriNetUnfolder]: 897/2794 cut-off events. [2022-12-12 00:19:42,498 INFO L131 PetriNetUnfolder]: For 663661/667795 co-relation queries the response was YES. [2022-12-12 00:19:42,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141921 conditions, 2794 events. 897/2794 cut-off events. For 663661/667795 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19739 event pairs, 7 based on Foata normal form. 17/2729 useless extension candidates. Maximal degree in co-relation 121316. Up to 968 conditions per place. [2022-12-12 00:19:42,558 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 832 selfloop transitions, 122 changer transitions 47/1081 dead transitions. [2022-12-12 00:19:42,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 812 places, 1081 transitions, 149009 flow [2022-12-12 00:19:42,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:19:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:19:42,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3185 transitions. [2022-12-12 00:19:42,560 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5780399274047187 [2022-12-12 00:19:42,561 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 681 predicate places. [2022-12-12 00:19:42,561 INFO L82 GeneralOperation]: Start removeDead. Operand has 812 places, 1081 transitions, 149009 flow [2022-12-12 00:19:42,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 794 places, 1034 transitions, 141649 flow [2022-12-12 00:19:42,637 INFO L495 AbstractCegarLoop]: Abstraction has has 794 places, 1034 transitions, 141649 flow [2022-12-12 00:19:42,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:42,637 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:42,638 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:42,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-12-12 00:19:42,638 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:42,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:42,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1094088720, now seen corresponding path program 50 times [2022-12-12 00:19:42,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:42,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238550714] [2022-12-12 00:19:42,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:42,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:43,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:43,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238550714] [2022-12-12 00:19:43,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238550714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:43,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:43,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:43,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357231670] [2022-12-12 00:19:43,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:43,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:43,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:43,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:43,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:43,121 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:43,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 794 places, 1034 transitions, 141649 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:43,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:43,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:43,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:48,394 INFO L130 PetriNetUnfolder]: 901/2795 cut-off events. [2022-12-12 00:19:48,395 INFO L131 PetriNetUnfolder]: For 669783/673652 co-relation queries the response was YES. [2022-12-12 00:19:48,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144791 conditions, 2795 events. 901/2795 cut-off events. For 669783/673652 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19726 event pairs, 5 based on Foata normal form. 20/2733 useless extension candidates. Maximal degree in co-relation 123579. Up to 974 conditions per place. [2022-12-12 00:19:48,454 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 834 selfloop transitions, 107 changer transitions 69/1090 dead transitions. [2022-12-12 00:19:48,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 1090 transitions, 152542 flow [2022-12-12 00:19:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 00:19:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 00:19:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 4136 transitions. [2022-12-12 00:19:48,456 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5704827586206896 [2022-12-12 00:19:48,457 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 712 predicate places. [2022-12-12 00:19:48,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 843 places, 1090 transitions, 152542 flow [2022-12-12 00:19:48,531 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 811 places, 1021 transitions, 141832 flow [2022-12-12 00:19:48,531 INFO L495 AbstractCegarLoop]: Abstraction has has 811 places, 1021 transitions, 141832 flow [2022-12-12 00:19:48,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:48,532 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:48,532 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:48,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-12-12 00:19:48,532 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:48,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:48,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1906767252, now seen corresponding path program 51 times [2022-12-12 00:19:48,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:48,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159437656] [2022-12-12 00:19:48,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:48,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:48,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:48,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159437656] [2022-12-12 00:19:48,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159437656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:48,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:48,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:48,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067782804] [2022-12-12 00:19:48,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:48,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:48,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:48,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:48,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:48,985 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:48,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 811 places, 1021 transitions, 141832 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:48,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:48,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:48,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:53,396 INFO L130 PetriNetUnfolder]: 887/2797 cut-off events. [2022-12-12 00:19:53,396 INFO L131 PetriNetUnfolder]: For 689359/693172 co-relation queries the response was YES. [2022-12-12 00:19:53,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144768 conditions, 2797 events. 887/2797 cut-off events. For 689359/693172 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19851 event pairs, 5 based on Foata normal form. 18/2728 useless extension candidates. Maximal degree in co-relation 123988. Up to 957 conditions per place. [2022-12-12 00:19:53,461 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 830 selfloop transitions, 113 changer transitions 47/1070 dead transitions. [2022-12-12 00:19:53,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 847 places, 1070 transitions, 151500 flow [2022-12-12 00:19:53,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:19:53,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:19:53,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3107 transitions. [2022-12-12 00:19:53,464 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5791239515377447 [2022-12-12 00:19:53,464 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 716 predicate places. [2022-12-12 00:19:53,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 847 places, 1070 transitions, 151500 flow [2022-12-12 00:19:53,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 830 places, 1023 transitions, 143952 flow [2022-12-12 00:19:53,548 INFO L495 AbstractCegarLoop]: Abstraction has has 830 places, 1023 transitions, 143952 flow [2022-12-12 00:19:53,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:53,548 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:53,548 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:53,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-12-12 00:19:53,548 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:53,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:53,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1037634014, now seen corresponding path program 52 times [2022-12-12 00:19:53,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:53,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806533836] [2022-12-12 00:19:53,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:53,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:54,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:54,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806533836] [2022-12-12 00:19:54,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806533836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:54,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:54,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:54,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406550722] [2022-12-12 00:19:54,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:54,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:54,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:54,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:54,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:54,102 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:54,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 1023 transitions, 143952 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:54,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:54,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:54,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:58,334 INFO L130 PetriNetUnfolder]: 883/2778 cut-off events. [2022-12-12 00:19:58,335 INFO L131 PetriNetUnfolder]: For 703228/707263 co-relation queries the response was YES. [2022-12-12 00:19:58,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146368 conditions, 2778 events. 883/2778 cut-off events. For 703228/707263 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19625 event pairs, 8 based on Foata normal form. 16/2711 useless extension candidates. Maximal degree in co-relation 125347. Up to 953 conditions per place. [2022-12-12 00:19:58,397 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 829 selfloop transitions, 108 changer transitions 47/1064 dead transitions. [2022-12-12 00:19:58,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 864 places, 1064 transitions, 152486 flow [2022-12-12 00:19:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-12 00:19:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-12 00:19:58,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2950 transitions. [2022-12-12 00:19:58,399 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5812807881773399 [2022-12-12 00:19:58,399 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 733 predicate places. [2022-12-12 00:19:58,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 864 places, 1064 transitions, 152486 flow [2022-12-12 00:19:58,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 849 places, 1017 transitions, 144844 flow [2022-12-12 00:19:58,483 INFO L495 AbstractCegarLoop]: Abstraction has has 849 places, 1017 transitions, 144844 flow [2022-12-12 00:19:58,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:58,483 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:58,483 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:58,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-12-12 00:19:58,483 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:19:58,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:58,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1739288936, now seen corresponding path program 53 times [2022-12-12 00:19:58,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:58,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174254849] [2022-12-12 00:19:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:58,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:59,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:59,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174254849] [2022-12-12 00:19:59,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174254849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:59,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:59,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:19:59,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981826537] [2022-12-12 00:19:59,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:59,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:19:59,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:59,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:19:59,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:19:59,150 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:19:59,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 849 places, 1017 transitions, 144844 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:59,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:59,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:19:59,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:03,350 INFO L130 PetriNetUnfolder]: 896/2800 cut-off events. [2022-12-12 00:20:03,350 INFO L131 PetriNetUnfolder]: For 743222/747836 co-relation queries the response was YES. [2022-12-12 00:20:03,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149255 conditions, 2800 events. 896/2800 cut-off events. For 743222/747836 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19794 event pairs, 8 based on Foata normal form. 18/2733 useless extension candidates. Maximal degree in co-relation 127802. Up to 954 conditions per place. [2022-12-12 00:20:03,412 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 829 selfloop transitions, 106 changer transitions 50/1065 dead transitions. [2022-12-12 00:20:03,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 886 places, 1065 transitions, 154650 flow [2022-12-12 00:20:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:20:03,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:20:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3182 transitions. [2022-12-12 00:20:03,414 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5774954627949184 [2022-12-12 00:20:03,414 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 755 predicate places. [2022-12-12 00:20:03,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 886 places, 1065 transitions, 154650 flow [2022-12-12 00:20:03,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 864 places, 1015 transitions, 146338 flow [2022-12-12 00:20:03,494 INFO L495 AbstractCegarLoop]: Abstraction has has 864 places, 1015 transitions, 146338 flow [2022-12-12 00:20:03,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:03,494 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:03,495 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:03,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-12-12 00:20:03,495 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:03,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:03,495 INFO L85 PathProgramCache]: Analyzing trace with hash 542335876, now seen corresponding path program 54 times [2022-12-12 00:20:03,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:03,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596642444] [2022-12-12 00:20:03,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:04,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:04,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596642444] [2022-12-12 00:20:04,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596642444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:04,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:04,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:04,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697769239] [2022-12-12 00:20:04,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:04,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:04,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:04,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:04,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:04,016 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:04,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 864 places, 1015 transitions, 146338 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:04,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:04,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:04,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:08,619 INFO L130 PetriNetUnfolder]: 882/2806 cut-off events. [2022-12-12 00:20:08,619 INFO L131 PetriNetUnfolder]: For 758228/762122 co-relation queries the response was YES. [2022-12-12 00:20:08,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150354 conditions, 2806 events. 882/2806 cut-off events. For 758228/762122 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19988 event pairs, 6 based on Foata normal form. 20/2738 useless extension candidates. Maximal degree in co-relation 136649. Up to 950 conditions per place. [2022-12-12 00:20:08,680 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 818 selfloop transitions, 108 changer transitions 57/1063 dead transitions. [2022-12-12 00:20:08,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 906 places, 1063 transitions, 156236 flow [2022-12-12 00:20:08,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:20:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:20:08,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3579 transitions. [2022-12-12 00:20:08,682 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5740176423416199 [2022-12-12 00:20:08,683 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 775 predicate places. [2022-12-12 00:20:08,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 906 places, 1063 transitions, 156236 flow [2022-12-12 00:20:08,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 882 places, 1006 transitions, 146611 flow [2022-12-12 00:20:08,864 INFO L495 AbstractCegarLoop]: Abstraction has has 882 places, 1006 transitions, 146611 flow [2022-12-12 00:20:08,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:08,864 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:08,864 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:08,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-12-12 00:20:08,864 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:08,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:08,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1403224808, now seen corresponding path program 55 times [2022-12-12 00:20:08,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:08,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273683476] [2022-12-12 00:20:08,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:08,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:09,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:09,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:09,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273683476] [2022-12-12 00:20:09,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273683476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:09,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:09,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:09,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308374908] [2022-12-12 00:20:09,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:09,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:09,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:09,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:09,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:09,326 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:09,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 882 places, 1006 transitions, 146611 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:09,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:09,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:09,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:13,904 INFO L130 PetriNetUnfolder]: 870/2745 cut-off events. [2022-12-12 00:20:13,904 INFO L131 PetriNetUnfolder]: For 746460/750781 co-relation queries the response was YES. [2022-12-12 00:20:13,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150099 conditions, 2745 events. 870/2745 cut-off events. For 746460/750781 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19323 event pairs, 7 based on Foata normal form. 16/2678 useless extension candidates. Maximal degree in co-relation 128564. Up to 930 conditions per place. [2022-12-12 00:20:13,967 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 806 selfloop transitions, 98 changer transitions 54/1038 dead transitions. [2022-12-12 00:20:13,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 922 places, 1038 transitions, 153745 flow [2022-12-12 00:20:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-12 00:20:13,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-12 00:20:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 3408 transitions. [2022-12-12 00:20:13,975 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5732548359966358 [2022-12-12 00:20:13,975 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 791 predicate places. [2022-12-12 00:20:13,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 922 places, 1038 transitions, 153745 flow [2022-12-12 00:20:14,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 900 places, 984 transitions, 144597 flow [2022-12-12 00:20:14,057 INFO L495 AbstractCegarLoop]: Abstraction has has 900 places, 984 transitions, 144597 flow [2022-12-12 00:20:14,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:14,057 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:14,057 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:14,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-12-12 00:20:14,057 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:14,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:14,058 INFO L85 PathProgramCache]: Analyzing trace with hash 577794636, now seen corresponding path program 56 times [2022-12-12 00:20:14,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:14,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560864577] [2022-12-12 00:20:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:14,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:14,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:14,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560864577] [2022-12-12 00:20:14,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560864577] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:14,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:14,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:14,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760463584] [2022-12-12 00:20:14,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:14,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:14,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:14,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:14,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:14,570 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:14,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 900 places, 984 transitions, 144597 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:14,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:14,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:14,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:18,656 INFO L130 PetriNetUnfolder]: 863/2725 cut-off events. [2022-12-12 00:20:18,656 INFO L131 PetriNetUnfolder]: For 752894/757807 co-relation queries the response was YES. [2022-12-12 00:20:18,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150732 conditions, 2725 events. 863/2725 cut-off events. For 752894/757807 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19189 event pairs, 5 based on Foata normal form. 20/2658 useless extension candidates. Maximal degree in co-relation 128773. Up to 915 conditions per place. [2022-12-12 00:20:18,719 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 806 selfloop transitions, 86 changer transitions 51/1023 dead transitions. [2022-12-12 00:20:18,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 1023 transitions, 152995 flow [2022-12-12 00:20:18,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:20:18,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:20:18,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3177 transitions. [2022-12-12 00:20:18,721 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5765880217785844 [2022-12-12 00:20:18,721 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 806 predicate places. [2022-12-12 00:20:18,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 937 places, 1023 transitions, 152995 flow [2022-12-12 00:20:18,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 909 places, 972 transitions, 144187 flow [2022-12-12 00:20:18,803 INFO L495 AbstractCegarLoop]: Abstraction has has 909 places, 972 transitions, 144187 flow [2022-12-12 00:20:18,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:18,808 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:18,808 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:18,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-12-12 00:20:18,808 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:18,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:18,808 INFO L85 PathProgramCache]: Analyzing trace with hash 81858132, now seen corresponding path program 57 times [2022-12-12 00:20:18,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:18,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250000550] [2022-12-12 00:20:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:19,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:19,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:19,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250000550] [2022-12-12 00:20:19,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250000550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:19,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:19,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888684598] [2022-12-12 00:20:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:19,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:19,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:19,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:19,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:19,339 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:19,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 909 places, 972 transitions, 144187 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:19,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:19,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:19,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:23,621 INFO L130 PetriNetUnfolder]: 859/2679 cut-off events. [2022-12-12 00:20:23,621 INFO L131 PetriNetUnfolder]: For 736445/741519 co-relation queries the response was YES. [2022-12-12 00:20:23,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150193 conditions, 2679 events. 859/2679 cut-off events. For 736445/741519 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18670 event pairs, 5 based on Foata normal form. 20/2608 useless extension candidates. Maximal degree in co-relation 128740. Up to 890 conditions per place. [2022-12-12 00:20:23,721 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 781 selfloop transitions, 66 changer transitions 61/988 dead transitions. [2022-12-12 00:20:23,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 988 transitions, 149014 flow [2022-12-12 00:20:23,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:20:23,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:20:23,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3638 transitions. [2022-12-12 00:20:23,724 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5702194357366771 [2022-12-12 00:20:23,724 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 821 predicate places. [2022-12-12 00:20:23,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 952 places, 988 transitions, 149014 flow [2022-12-12 00:20:23,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 906 places, 927 transitions, 138471 flow [2022-12-12 00:20:23,801 INFO L495 AbstractCegarLoop]: Abstraction has has 906 places, 927 transitions, 138471 flow [2022-12-12 00:20:23,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:23,801 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:23,801 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:23,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-12-12 00:20:23,801 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:23,801 INFO L85 PathProgramCache]: Analyzing trace with hash 644684266, now seen corresponding path program 58 times [2022-12-12 00:20:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:23,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751884550] [2022-12-12 00:20:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:23,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:24,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:24,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751884550] [2022-12-12 00:20:24,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751884550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:24,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:24,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:24,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526239342] [2022-12-12 00:20:24,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:24,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:24,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:24,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:24,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:24,262 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:24,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 906 places, 927 transitions, 138471 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:24,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:24,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:24,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:28,420 INFO L130 PetriNetUnfolder]: 826/2577 cut-off events. [2022-12-12 00:20:28,421 INFO L131 PetriNetUnfolder]: For 720369/724306 co-relation queries the response was YES. [2022-12-12 00:20:28,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145448 conditions, 2577 events. 826/2577 cut-off events. For 720369/724306 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17866 event pairs, 7 based on Foata normal form. 18/2513 useless extension candidates. Maximal degree in co-relation 126101. Up to 840 conditions per place. [2022-12-12 00:20:28,481 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 739 selfloop transitions, 47 changer transitions 61/927 dead transitions. [2022-12-12 00:20:28,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 927 transitions, 140168 flow [2022-12-12 00:20:28,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:20:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:20:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3076 transitions. [2022-12-12 00:20:28,484 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5733457595526561 [2022-12-12 00:20:28,484 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 811 predicate places. [2022-12-12 00:20:28,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 942 places, 927 transitions, 140168 flow [2022-12-12 00:20:28,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 780 places, 866 transitions, 129916 flow [2022-12-12 00:20:28,624 INFO L495 AbstractCegarLoop]: Abstraction has has 780 places, 866 transitions, 129916 flow [2022-12-12 00:20:28,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:28,624 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:28,624 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:28,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-12-12 00:20:28,624 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:28,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:28,625 INFO L85 PathProgramCache]: Analyzing trace with hash -904805704, now seen corresponding path program 59 times [2022-12-12 00:20:28,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:28,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268429907] [2022-12-12 00:20:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:28,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:29,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:29,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268429907] [2022-12-12 00:20:29,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268429907] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:29,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:29,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:29,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175858647] [2022-12-12 00:20:29,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:29,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:29,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:29,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:29,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:29,260 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:29,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 780 places, 866 transitions, 129916 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:29,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:29,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:29,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:34,109 INFO L130 PetriNetUnfolder]: 899/2812 cut-off events. [2022-12-12 00:20:34,110 INFO L131 PetriNetUnfolder]: For 814353/818578 co-relation queries the response was YES. [2022-12-12 00:20:34,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161820 conditions, 2812 events. 899/2812 cut-off events. For 814353/818578 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19776 event pairs, 5 based on Foata normal form. 16/2740 useless extension candidates. Maximal degree in co-relation 139589. Up to 945 conditions per place. [2022-12-12 00:20:34,176 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 833 selfloop transitions, 94 changer transitions 73/1080 dead transitions. [2022-12-12 00:20:34,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 832 places, 1080 transitions, 167148 flow [2022-12-12 00:20:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 00:20:34,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 00:20:34,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4389 transitions. [2022-12-12 00:20:34,179 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5711125569290826 [2022-12-12 00:20:34,179 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 701 predicate places. [2022-12-12 00:20:34,179 INFO L82 GeneralOperation]: Start removeDead. Operand has 832 places, 1080 transitions, 167148 flow [2022-12-12 00:20:34,264 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 796 places, 1007 transitions, 154859 flow [2022-12-12 00:20:34,264 INFO L495 AbstractCegarLoop]: Abstraction has has 796 places, 1007 transitions, 154859 flow [2022-12-12 00:20:34,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:34,265 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:34,265 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:34,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-12-12 00:20:34,265 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:34,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:34,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1897156404, now seen corresponding path program 60 times [2022-12-12 00:20:34,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:34,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126326479] [2022-12-12 00:20:34,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:34,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:34,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:34,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126326479] [2022-12-12 00:20:34,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126326479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:34,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:34,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:34,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797156136] [2022-12-12 00:20:34,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:34,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:34,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:34,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:34,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:34,752 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:34,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 796 places, 1007 transitions, 154859 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:34,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:34,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:34,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:39,886 INFO L130 PetriNetUnfolder]: 973/2946 cut-off events. [2022-12-12 00:20:39,886 INFO L131 PetriNetUnfolder]: For 829834/833899 co-relation queries the response was YES. [2022-12-12 00:20:39,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176915 conditions, 2946 events. 973/2946 cut-off events. For 829834/833899 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 20824 event pairs, 5 based on Foata normal form. 18/2883 useless extension candidates. Maximal degree in co-relation 154449. Up to 1039 conditions per place. [2022-12-12 00:20:39,960 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 961 selfloop transitions, 110 changer transitions 66/1217 dead transitions. [2022-12-12 00:20:39,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 1217 transitions, 192600 flow [2022-12-12 00:20:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 00:20:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 00:20:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 4003 transitions. [2022-12-12 00:20:39,963 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5751436781609195 [2022-12-12 00:20:39,963 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 712 predicate places. [2022-12-12 00:20:39,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 843 places, 1217 transitions, 192600 flow [2022-12-12 00:20:40,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 813 places, 1151 transitions, 181131 flow [2022-12-12 00:20:40,063 INFO L495 AbstractCegarLoop]: Abstraction has has 813 places, 1151 transitions, 181131 flow [2022-12-12 00:20:40,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:40,063 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:40,063 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:40,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-12-12 00:20:40,063 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:40,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:40,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1545963258, now seen corresponding path program 61 times [2022-12-12 00:20:40,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:40,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510293166] [2022-12-12 00:20:40,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:40,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:40,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:40,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510293166] [2022-12-12 00:20:40,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510293166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:40,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:40,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:40,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640986618] [2022-12-12 00:20:40,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:40,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:40,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:40,632 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:40,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 813 places, 1151 transitions, 181131 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:40,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:40,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:40,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:45,580 INFO L130 PetriNetUnfolder]: 973/2958 cut-off events. [2022-12-12 00:20:45,581 INFO L131 PetriNetUnfolder]: For 831529/835808 co-relation queries the response was YES. [2022-12-12 00:20:45,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179506 conditions, 2958 events. 973/2958 cut-off events. For 831529/835808 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 20998 event pairs, 5 based on Foata normal form. 18/2889 useless extension candidates. Maximal degree in co-relation 156817. Up to 1047 conditions per place. [2022-12-12 00:20:45,652 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 970 selfloop transitions, 123 changer transitions 48/1221 dead transitions. [2022-12-12 00:20:45,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 1221 transitions, 196264 flow [2022-12-12 00:20:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:20:45,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:20:45,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3217 transitions. [2022-12-12 00:20:45,654 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5838475499092559 [2022-12-12 00:20:45,654 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 719 predicate places. [2022-12-12 00:20:45,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 850 places, 1221 transitions, 196264 flow [2022-12-12 00:20:45,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 832 places, 1173 transitions, 187567 flow [2022-12-12 00:20:45,832 INFO L495 AbstractCegarLoop]: Abstraction has has 832 places, 1173 transitions, 187567 flow [2022-12-12 00:20:45,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:45,832 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:45,832 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:45,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-12-12 00:20:45,833 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:45,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:45,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1032456568, now seen corresponding path program 62 times [2022-12-12 00:20:45,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:45,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101617999] [2022-12-12 00:20:45,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:45,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:46,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:46,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101617999] [2022-12-12 00:20:46,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101617999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:46,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:46,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:46,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462066495] [2022-12-12 00:20:46,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:46,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:46,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:46,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:46,288 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:46,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 1173 transitions, 187567 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:46,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:46,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:46,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:52,256 INFO L130 PetriNetUnfolder]: 1032/3073 cut-off events. [2022-12-12 00:20:52,257 INFO L131 PetriNetUnfolder]: For 891816/896782 co-relation queries the response was YES. [2022-12-12 00:20:52,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191666 conditions, 3073 events. 1032/3073 cut-off events. For 891816/896782 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 21950 event pairs, 8 based on Foata normal form. 20/3007 useless extension candidates. Maximal degree in co-relation 166991. Up to 1119 conditions per place. [2022-12-12 00:20:52,335 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1042 selfloop transitions, 116 changer transitions 69/1307 dead transitions. [2022-12-12 00:20:52,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 879 places, 1307 transitions, 213912 flow [2022-12-12 00:20:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 00:20:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 00:20:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 4007 transitions. [2022-12-12 00:20:52,337 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5757183908045977 [2022-12-12 00:20:52,338 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 748 predicate places. [2022-12-12 00:20:52,338 INFO L82 GeneralOperation]: Start removeDead. Operand has 879 places, 1307 transitions, 213912 flow [2022-12-12 00:20:52,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 849 places, 1238 transitions, 201546 flow [2022-12-12 00:20:52,446 INFO L495 AbstractCegarLoop]: Abstraction has has 849 places, 1238 transitions, 201546 flow [2022-12-12 00:20:52,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:52,446 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:52,447 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:52,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-12-12 00:20:52,447 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:52,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:52,448 INFO L85 PathProgramCache]: Analyzing trace with hash -805891410, now seen corresponding path program 63 times [2022-12-12 00:20:52,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:52,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750080227] [2022-12-12 00:20:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:52,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:52,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:52,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750080227] [2022-12-12 00:20:52,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750080227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:52,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:52,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:52,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140336498] [2022-12-12 00:20:52,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:52,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:52,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:52,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:52,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:52,962 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:52,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 849 places, 1238 transitions, 201546 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:52,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:52,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:52,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:20:58,155 INFO L130 PetriNetUnfolder]: 1024/3081 cut-off events. [2022-12-12 00:20:58,155 INFO L131 PetriNetUnfolder]: For 917264/922386 co-relation queries the response was YES. [2022-12-12 00:20:58,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192817 conditions, 3081 events. 1024/3081 cut-off events. For 917264/922386 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 22055 event pairs, 6 based on Foata normal form. 20/3010 useless extension candidates. Maximal degree in co-relation 176854. Up to 1114 conditions per place. [2022-12-12 00:20:58,239 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1049 selfloop transitions, 123 changer transitions 48/1300 dead transitions. [2022-12-12 00:20:58,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 884 places, 1300 transitions, 215557 flow [2022-12-12 00:20:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:20:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:20:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3059 transitions. [2022-12-12 00:20:58,241 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5860153256704981 [2022-12-12 00:20:58,241 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 753 predicate places. [2022-12-12 00:20:58,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 884 places, 1300 transitions, 215557 flow [2022-12-12 00:20:58,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 868 places, 1252 transitions, 206668 flow [2022-12-12 00:20:58,358 INFO L495 AbstractCegarLoop]: Abstraction has has 868 places, 1252 transitions, 206668 flow [2022-12-12 00:20:58,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:58,359 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:20:58,360 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:20:58,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-12-12 00:20:58,360 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:20:58,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:20:58,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1462972172, now seen corresponding path program 64 times [2022-12-12 00:20:58,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:20:58,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995413181] [2022-12-12 00:20:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:20:58,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:20:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:20:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:20:58,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:20:59,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995413181] [2022-12-12 00:20:59,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995413181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:20:59,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:20:59,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:20:59,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542372683] [2022-12-12 00:20:59,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:20:59,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:20:59,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:20:59,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:20:59,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:20:59,002 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:20:59,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 868 places, 1252 transitions, 206668 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:20:59,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:20:59,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:20:59,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:04,612 INFO L130 PetriNetUnfolder]: 1024/3056 cut-off events. [2022-12-12 00:21:04,613 INFO L131 PetriNetUnfolder]: For 917216/922608 co-relation queries the response was YES. [2022-12-12 00:21:04,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195224 conditions, 3056 events. 1024/3056 cut-off events. For 917216/922608 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 21790 event pairs, 8 based on Foata normal form. 20/2990 useless extension candidates. Maximal degree in co-relation 179099. Up to 1114 conditions per place. [2022-12-12 00:21:04,695 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1050 selfloop transitions, 120 changer transitions 50/1300 dead transitions. [2022-12-12 00:21:04,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 905 places, 1300 transitions, 218000 flow [2022-12-12 00:21:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:21:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:21:04,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3213 transitions. [2022-12-12 00:21:04,698 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5831215970961887 [2022-12-12 00:21:04,698 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 774 predicate places. [2022-12-12 00:21:04,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 905 places, 1300 transitions, 218000 flow [2022-12-12 00:21:04,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 883 places, 1250 transitions, 208588 flow [2022-12-12 00:21:04,840 INFO L495 AbstractCegarLoop]: Abstraction has has 883 places, 1250 transitions, 208588 flow [2022-12-12 00:21:04,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:04,840 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:04,840 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:04,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-12-12 00:21:04,840 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:04,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:04,841 INFO L85 PathProgramCache]: Analyzing trace with hash 96047598, now seen corresponding path program 65 times [2022-12-12 00:21:04,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:04,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714068448] [2022-12-12 00:21:04,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:04,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:05,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:05,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714068448] [2022-12-12 00:21:05,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714068448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:05,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:05,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:05,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847718064] [2022-12-12 00:21:05,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:05,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:05,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:05,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:05,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:05,297 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:05,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 883 places, 1250 transitions, 208588 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:05,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:05,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:05,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:10,914 INFO L130 PetriNetUnfolder]: 1009/3050 cut-off events. [2022-12-12 00:21:10,914 INFO L131 PetriNetUnfolder]: For 933038/937755 co-relation queries the response was YES. [2022-12-12 00:21:10,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196208 conditions, 3050 events. 1009/3050 cut-off events. For 933038/937755 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 21844 event pairs, 7 based on Foata normal form. 18/2986 useless extension candidates. Maximal degree in co-relation 171135. Up to 1107 conditions per place. [2022-12-12 00:21:10,993 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1046 selfloop transitions, 109 changer transitions 60/1295 dead transitions. [2022-12-12 00:21:10,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 926 places, 1295 transitions, 219373 flow [2022-12-12 00:21:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:21:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:21:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3673 transitions. [2022-12-12 00:21:10,995 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5757053291536051 [2022-12-12 00:21:10,995 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 795 predicate places. [2022-12-12 00:21:10,996 INFO L82 GeneralOperation]: Start removeDead. Operand has 926 places, 1295 transitions, 219373 flow [2022-12-12 00:21:11,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 888 places, 1235 transitions, 207986 flow [2022-12-12 00:21:11,102 INFO L495 AbstractCegarLoop]: Abstraction has has 888 places, 1235 transitions, 207986 flow [2022-12-12 00:21:11,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:11,103 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:11,103 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:11,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-12-12 00:21:11,103 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:11,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:11,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1775903966, now seen corresponding path program 66 times [2022-12-12 00:21:11,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:11,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142116676] [2022-12-12 00:21:11,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:11,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:11,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:11,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142116676] [2022-12-12 00:21:11,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142116676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:11,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:11,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:11,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064679723] [2022-12-12 00:21:11,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:11,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:11,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:11,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:11,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:11,580 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:11,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 888 places, 1235 transitions, 207986 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:11,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:11,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:11,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:17,089 INFO L130 PetriNetUnfolder]: 1027/3106 cut-off events. [2022-12-12 00:21:17,089 INFO L131 PetriNetUnfolder]: For 970217/975221 co-relation queries the response was YES. [2022-12-12 00:21:17,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202328 conditions, 3106 events. 1027/3106 cut-off events. For 970217/975221 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 22381 event pairs, 7 based on Foata normal form. 20/3038 useless extension candidates. Maximal degree in co-relation 186823. Up to 1140 conditions per place. [2022-12-12 00:21:17,172 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1072 selfloop transitions, 122 changer transitions 57/1331 dead transitions. [2022-12-12 00:21:17,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 1331 transitions, 229008 flow [2022-12-12 00:21:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:21:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:21:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3610 transitions. [2022-12-12 00:21:17,174 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5789895749799518 [2022-12-12 00:21:17,174 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 799 predicate places. [2022-12-12 00:21:17,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 930 places, 1331 transitions, 229008 flow [2022-12-12 00:21:17,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 906 places, 1274 transitions, 218015 flow [2022-12-12 00:21:17,331 INFO L495 AbstractCegarLoop]: Abstraction has has 906 places, 1274 transitions, 218015 flow [2022-12-12 00:21:17,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:17,331 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:17,331 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:17,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-12-12 00:21:17,332 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:17,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:17,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1988846506, now seen corresponding path program 67 times [2022-12-12 00:21:17,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:17,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946262196] [2022-12-12 00:21:17,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:17,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:17,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:17,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946262196] [2022-12-12 00:21:17,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946262196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:17,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:17,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:17,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897254418] [2022-12-12 00:21:17,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:17,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:17,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:17,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:17,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:17,738 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:17,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 906 places, 1274 transitions, 218015 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:17,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:17,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:17,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:23,316 INFO L130 PetriNetUnfolder]: 1041/3115 cut-off events. [2022-12-12 00:21:23,316 INFO L131 PetriNetUnfolder]: For 1005002/1010184 co-relation queries the response was YES. [2022-12-12 00:21:23,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205948 conditions, 3115 events. 1041/3115 cut-off events. For 1005002/1010184 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 22296 event pairs, 9 based on Foata normal form. 18/3047 useless extension candidates. Maximal degree in co-relation 179744. Up to 1145 conditions per place. [2022-12-12 00:21:23,404 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1078 selfloop transitions, 127 changer transitions 49/1334 dead transitions. [2022-12-12 00:21:23,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 943 places, 1334 transitions, 232164 flow [2022-12-12 00:21:23,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:21:23,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:21:23,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3217 transitions. [2022-12-12 00:21:23,406 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5838475499092559 [2022-12-12 00:21:23,406 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 812 predicate places. [2022-12-12 00:21:23,406 INFO L82 GeneralOperation]: Start removeDead. Operand has 943 places, 1334 transitions, 232164 flow [2022-12-12 00:21:23,527 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 925 places, 1285 transitions, 222670 flow [2022-12-12 00:21:23,527 INFO L495 AbstractCegarLoop]: Abstraction has has 925 places, 1285 transitions, 222670 flow [2022-12-12 00:21:23,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:23,528 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:23,528 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:23,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-12-12 00:21:23,528 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1199886554, now seen corresponding path program 68 times [2022-12-12 00:21:23,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:23,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922112181] [2022-12-12 00:21:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:23,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:24,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:24,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:24,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922112181] [2022-12-12 00:21:24,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922112181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:24,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:24,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:24,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519791848] [2022-12-12 00:21:24,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:24,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:24,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:24,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:24,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:24,292 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:24,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 925 places, 1285 transitions, 222670 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:24,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:24,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:24,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:30,190 INFO L130 PetriNetUnfolder]: 1030/3133 cut-off events. [2022-12-12 00:21:30,190 INFO L131 PetriNetUnfolder]: For 1017269/1022284 co-relation queries the response was YES. [2022-12-12 00:21:30,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208196 conditions, 3133 events. 1030/3133 cut-off events. For 1017269/1022284 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 22680 event pairs, 7 based on Foata normal form. 16/3061 useless extension candidates. Maximal degree in co-relation 181962. Up to 1148 conditions per place. [2022-12-12 00:21:30,277 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1081 selfloop transitions, 128 changer transitions 55/1344 dead transitions. [2022-12-12 00:21:30,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 966 places, 1344 transitions, 236437 flow [2022-12-12 00:21:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 00:21:30,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 00:21:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3526 transitions. [2022-12-12 00:21:30,280 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5789819376026273 [2022-12-12 00:21:30,280 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 835 predicate places. [2022-12-12 00:21:30,280 INFO L82 GeneralOperation]: Start removeDead. Operand has 966 places, 1344 transitions, 236437 flow [2022-12-12 00:21:30,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 943 places, 1289 transitions, 225662 flow [2022-12-12 00:21:30,397 INFO L495 AbstractCegarLoop]: Abstraction has has 943 places, 1289 transitions, 225662 flow [2022-12-12 00:21:30,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:30,398 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:30,398 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:30,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-12-12 00:21:30,398 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:30,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:30,398 INFO L85 PathProgramCache]: Analyzing trace with hash 817914806, now seen corresponding path program 69 times [2022-12-12 00:21:30,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:30,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139589325] [2022-12-12 00:21:30,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:30,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:31,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:31,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139589325] [2022-12-12 00:21:31,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139589325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:31,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:31,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:31,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986096734] [2022-12-12 00:21:31,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:31,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:31,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:31,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:31,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:31,042 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:31,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 943 places, 1289 transitions, 225662 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:31,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:31,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:31,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:36,341 INFO L130 PetriNetUnfolder]: 1027/3089 cut-off events. [2022-12-12 00:21:36,341 INFO L131 PetriNetUnfolder]: For 1027361/1032159 co-relation queries the response was YES. [2022-12-12 00:21:36,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209911 conditions, 3089 events. 1027/3089 cut-off events. For 1027361/1032159 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 22201 event pairs, 6 based on Foata normal form. 18/3025 useless extension candidates. Maximal degree in co-relation 183426. Up to 1142 conditions per place. [2022-12-12 00:21:36,430 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1080 selfloop transitions, 131 changer transitions 48/1339 dead transitions. [2022-12-12 00:21:36,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 980 places, 1339 transitions, 237855 flow [2022-12-12 00:21:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:21:36,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:21:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3215 transitions. [2022-12-12 00:21:36,432 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5834845735027223 [2022-12-12 00:21:36,432 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 849 predicate places. [2022-12-12 00:21:36,432 INFO L82 GeneralOperation]: Start removeDead. Operand has 980 places, 1339 transitions, 237855 flow [2022-12-12 00:21:36,630 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 962 places, 1291 transitions, 228390 flow [2022-12-12 00:21:36,630 INFO L495 AbstractCegarLoop]: Abstraction has has 962 places, 1291 transitions, 228390 flow [2022-12-12 00:21:36,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:36,631 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:36,631 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:36,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-12-12 00:21:36,631 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:36,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:36,631 INFO L85 PathProgramCache]: Analyzing trace with hash -313314792, now seen corresponding path program 70 times [2022-12-12 00:21:36,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:36,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746260282] [2022-12-12 00:21:36,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:36,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:37,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:37,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:37,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746260282] [2022-12-12 00:21:37,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746260282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:37,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:37,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:37,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097343338] [2022-12-12 00:21:37,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:37,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:37,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:37,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:37,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:37,054 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:37,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 1291 transitions, 228390 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:37,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:37,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:37,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:43,009 INFO L130 PetriNetUnfolder]: 1030/3079 cut-off events. [2022-12-12 00:21:43,010 INFO L131 PetriNetUnfolder]: For 1027762/1033564 co-relation queries the response was YES. [2022-12-12 00:21:43,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210989 conditions, 3079 events. 1030/3079 cut-off events. For 1027762/1033564 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 22051 event pairs, 10 based on Foata normal form. 19/3012 useless extension candidates. Maximal degree in co-relation 193892. Up to 1126 conditions per place. [2022-12-12 00:21:43,211 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1073 selfloop transitions, 115 changer transitions 50/1318 dead transitions. [2022-12-12 00:21:43,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 998 places, 1318 transitions, 236068 flow [2022-12-12 00:21:43,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:21:43,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:21:43,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3132 transitions. [2022-12-12 00:21:43,213 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5837837837837838 [2022-12-12 00:21:43,214 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 867 predicate places. [2022-12-12 00:21:43,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 998 places, 1318 transitions, 236068 flow [2022-12-12 00:21:43,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 971 places, 1268 transitions, 226059 flow [2022-12-12 00:21:43,340 INFO L495 AbstractCegarLoop]: Abstraction has has 971 places, 1268 transitions, 226059 flow [2022-12-12 00:21:43,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:43,341 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:43,341 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:43,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-12-12 00:21:43,341 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:43,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:43,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1375273072, now seen corresponding path program 71 times [2022-12-12 00:21:43,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:43,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550825219] [2022-12-12 00:21:43,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:43,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:43,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:43,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550825219] [2022-12-12 00:21:43,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550825219] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:43,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:43,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:43,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358835390] [2022-12-12 00:21:43,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:43,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:43,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:43,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:43,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:43,827 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:43,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 971 places, 1268 transitions, 226059 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:43,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:43,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:43,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:49,996 INFO L130 PetriNetUnfolder]: 1003/3059 cut-off events. [2022-12-12 00:21:49,996 INFO L131 PetriNetUnfolder]: For 1056382/1061585 co-relation queries the response was YES. [2022-12-12 00:21:50,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208984 conditions, 3059 events. 1003/3059 cut-off events. For 1056382/1061585 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 21983 event pairs, 5 based on Foata normal form. 20/2992 useless extension candidates. Maximal degree in co-relation 182652. Up to 1099 conditions per place. [2022-12-12 00:21:50,080 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1054 selfloop transitions, 98 changer transitions 54/1286 dead transitions. [2022-12-12 00:21:50,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1007 places, 1286 transitions, 232184 flow [2022-12-12 00:21:50,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:21:50,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:21:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3124 transitions. [2022-12-12 00:21:50,084 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5822926374650512 [2022-12-12 00:21:50,084 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 876 predicate places. [2022-12-12 00:21:50,084 INFO L82 GeneralOperation]: Start removeDead. Operand has 1007 places, 1286 transitions, 232184 flow [2022-12-12 00:21:50,208 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 960 places, 1232 transitions, 221354 flow [2022-12-12 00:21:50,208 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 1232 transitions, 221354 flow [2022-12-12 00:21:50,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:50,209 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:50,209 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:50,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-12-12 00:21:50,209 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:50,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:50,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1564521306, now seen corresponding path program 72 times [2022-12-12 00:21:50,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:50,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522018307] [2022-12-12 00:21:50,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:50,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:50,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:50,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522018307] [2022-12-12 00:21:50,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522018307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:50,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:50,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:50,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118299753] [2022-12-12 00:21:50,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:50,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:50,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:50,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:50,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:50,745 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:50,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 1232 transitions, 221354 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:50,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:50,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:50,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:21:56,628 INFO L130 PetriNetUnfolder]: 1011/3064 cut-off events. [2022-12-12 00:21:56,628 INFO L131 PetriNetUnfolder]: For 1090729/1096335 co-relation queries the response was YES. [2022-12-12 00:21:56,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210990 conditions, 3064 events. 1011/3064 cut-off events. For 1090729/1096335 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 21884 event pairs, 7 based on Foata normal form. 20/2993 useless extension candidates. Maximal degree in co-relation 184180. Up to 1092 conditions per place. [2022-12-12 00:21:56,719 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1021 selfloop transitions, 122 changer transitions 50/1273 dead transitions. [2022-12-12 00:21:56,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 995 places, 1273 transitions, 231925 flow [2022-12-12 00:21:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:21:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:21:56,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3062 transitions. [2022-12-12 00:21:56,721 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5865900383141762 [2022-12-12 00:21:56,721 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 864 predicate places. [2022-12-12 00:21:56,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 995 places, 1273 transitions, 231925 flow [2022-12-12 00:21:56,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 975 places, 1223 transitions, 221713 flow [2022-12-12 00:21:56,897 INFO L495 AbstractCegarLoop]: Abstraction has has 975 places, 1223 transitions, 221713 flow [2022-12-12 00:21:56,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:56,897 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:21:56,897 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:21:56,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-12-12 00:21:56,897 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:21:56,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:21:56,897 INFO L85 PathProgramCache]: Analyzing trace with hash -129799284, now seen corresponding path program 73 times [2022-12-12 00:21:56,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:21:56,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347156327] [2022-12-12 00:21:56,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:21:56,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:21:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:21:57,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:21:57,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:21:57,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347156327] [2022-12-12 00:21:57,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347156327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:21:57,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:21:57,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:21:57,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640682549] [2022-12-12 00:21:57,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:21:57,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:21:57,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:21:57,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:21:57,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:21:57,356 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:21:57,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 975 places, 1223 transitions, 221713 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:21:57,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:21:57,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:21:57,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:03,442 INFO L130 PetriNetUnfolder]: 993/3034 cut-off events. [2022-12-12 00:22:03,442 INFO L131 PetriNetUnfolder]: For 1088958/1094093 co-relation queries the response was YES. [2022-12-12 00:22:03,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211107 conditions, 3034 events. 993/3034 cut-off events. For 1088958/1094093 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 21709 event pairs, 5 based on Foata normal form. 19/2966 useless extension candidates. Maximal degree in co-relation 184518. Up to 1082 conditions per place. [2022-12-12 00:22:03,527 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1018 selfloop transitions, 109 changer transitions 58/1265 dead transitions. [2022-12-12 00:22:03,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1018 places, 1265 transitions, 232465 flow [2022-12-12 00:22:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:22:03,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:22:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3671 transitions. [2022-12-12 00:22:03,530 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5753918495297806 [2022-12-12 00:22:03,530 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 887 predicate places. [2022-12-12 00:22:03,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 1018 places, 1265 transitions, 232465 flow [2022-12-12 00:22:03,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 980 places, 1207 transitions, 220584 flow [2022-12-12 00:22:03,673 INFO L495 AbstractCegarLoop]: Abstraction has has 980 places, 1207 transitions, 220584 flow [2022-12-12 00:22:03,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:03,674 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:03,674 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:03,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-12-12 00:22:03,674 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:03,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:03,674 INFO L85 PathProgramCache]: Analyzing trace with hash -60238436, now seen corresponding path program 74 times [2022-12-12 00:22:03,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:03,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275398416] [2022-12-12 00:22:03,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:03,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:04,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:04,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275398416] [2022-12-12 00:22:04,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275398416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:04,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:04,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:04,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722126756] [2022-12-12 00:22:04,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:04,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:04,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:04,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:04,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:04,324 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:04,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 980 places, 1207 transitions, 220584 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:04,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:04,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:04,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:10,740 INFO L130 PetriNetUnfolder]: 1008/3061 cut-off events. [2022-12-12 00:22:10,741 INFO L131 PetriNetUnfolder]: For 1097453/1102900 co-relation queries the response was YES. [2022-12-12 00:22:10,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216853 conditions, 3061 events. 1008/3061 cut-off events. For 1097453/1102900 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 21967 event pairs, 5 based on Foata normal form. 16/2989 useless extension candidates. Maximal degree in co-relation 190029. Up to 1108 conditions per place. [2022-12-12 00:22:10,829 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1041 selfloop transitions, 122 changer transitions 55/1298 dead transitions. [2022-12-12 00:22:10,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1298 transitions, 241911 flow [2022-12-12 00:22:10,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:22:10,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:22:10,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3608 transitions. [2022-12-12 00:22:10,831 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5786688051323176 [2022-12-12 00:22:10,831 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 891 predicate places. [2022-12-12 00:22:10,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 1022 places, 1298 transitions, 241911 flow [2022-12-12 00:22:10,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 998 places, 1243 transitions, 230476 flow [2022-12-12 00:22:10,959 INFO L495 AbstractCegarLoop]: Abstraction has has 998 places, 1243 transitions, 230476 flow [2022-12-12 00:22:10,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:10,959 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:10,959 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:10,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-12-12 00:22:10,959 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:10,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:10,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1655645018, now seen corresponding path program 75 times [2022-12-12 00:22:10,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:10,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562357000] [2022-12-12 00:22:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:10,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:11,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:11,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562357000] [2022-12-12 00:22:11,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562357000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:11,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:11,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:11,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341136552] [2022-12-12 00:22:11,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:11,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:11,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:11,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:11,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:11,568 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:11,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 998 places, 1243 transitions, 230476 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:11,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:11,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:11,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:17,878 INFO L130 PetriNetUnfolder]: 1020/3060 cut-off events. [2022-12-12 00:22:17,878 INFO L131 PetriNetUnfolder]: For 1121617/1127391 co-relation queries the response was YES. [2022-12-12 00:22:17,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220705 conditions, 3060 events. 1020/3060 cut-off events. For 1121617/1127391 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 21859 event pairs, 8 based on Foata normal form. 18/2992 useless extension candidates. Maximal degree in co-relation 202798. Up to 1111 conditions per place. [2022-12-12 00:22:17,966 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1023 selfloop transitions, 135 changer transitions 66/1304 dead transitions. [2022-12-12 00:22:17,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1044 places, 1304 transitions, 245483 flow [2022-12-12 00:22:17,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 00:22:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 00:22:17,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 3919 transitions. [2022-12-12 00:22:17,969 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5750550256786501 [2022-12-12 00:22:17,969 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 913 predicate places. [2022-12-12 00:22:17,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 1044 places, 1304 transitions, 245483 flow [2022-12-12 00:22:18,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1015 places, 1238 transitions, 232034 flow [2022-12-12 00:22:18,095 INFO L495 AbstractCegarLoop]: Abstraction has has 1015 places, 1238 transitions, 232034 flow [2022-12-12 00:22:18,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:18,096 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:18,096 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:18,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-12-12 00:22:18,096 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:18,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:18,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1550637766, now seen corresponding path program 76 times [2022-12-12 00:22:18,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:18,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422848623] [2022-12-12 00:22:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:18,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:18,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:18,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422848623] [2022-12-12 00:22:18,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422848623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:18,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:18,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:18,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669970540] [2022-12-12 00:22:18,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:18,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:18,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:18,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:18,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:18,641 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:18,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1015 places, 1238 transitions, 232034 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:18,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:18,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:18,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:24,732 INFO L130 PetriNetUnfolder]: 1012/3053 cut-off events. [2022-12-12 00:22:24,733 INFO L131 PetriNetUnfolder]: For 1107340/1112901 co-relation queries the response was YES. [2022-12-12 00:22:24,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223571 conditions, 3053 events. 1012/3053 cut-off events. For 1107340/1112901 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 21968 event pairs, 3 based on Foata normal form. 18/2990 useless extension candidates. Maximal degree in co-relation 196265. Up to 1124 conditions per place. [2022-12-12 00:22:24,895 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1043 selfloop transitions, 143 changer transitions 55/1321 dead transitions. [2022-12-12 00:22:24,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1058 places, 1321 transitions, 251951 flow [2022-12-12 00:22:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:22:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:22:24,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3680 transitions. [2022-12-12 00:22:24,897 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5768025078369906 [2022-12-12 00:22:24,897 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 927 predicate places. [2022-12-12 00:22:24,897 INFO L82 GeneralOperation]: Start removeDead. Operand has 1058 places, 1321 transitions, 251951 flow [2022-12-12 00:22:25,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1033 places, 1266 transitions, 240296 flow [2022-12-12 00:22:25,032 INFO L495 AbstractCegarLoop]: Abstraction has has 1033 places, 1266 transitions, 240296 flow [2022-12-12 00:22:25,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:25,032 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:25,032 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:25,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-12-12 00:22:25,032 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:25,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2124182714, now seen corresponding path program 77 times [2022-12-12 00:22:25,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:25,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768276067] [2022-12-12 00:22:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:25,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:25,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:25,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768276067] [2022-12-12 00:22:25,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768276067] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:25,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:25,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:25,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373616593] [2022-12-12 00:22:25,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:25,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:25,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:25,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:25,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:25,512 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:25,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1266 transitions, 240296 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:25,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:25,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:25,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:31,294 INFO L130 PetriNetUnfolder]: 1009/3072 cut-off events. [2022-12-12 00:22:31,294 INFO L131 PetriNetUnfolder]: For 1156495/1162373 co-relation queries the response was YES. [2022-12-12 00:22:31,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225382 conditions, 3072 events. 1009/3072 cut-off events. For 1156495/1162373 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 22254 event pairs, 4 based on Foata normal form. 22/3006 useless extension candidates. Maximal degree in co-relation 197355. Up to 1119 conditions per place. [2022-12-12 00:22:31,384 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1043 selfloop transitions, 142 changer transitions 49/1314 dead transitions. [2022-12-12 00:22:31,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1068 places, 1314 transitions, 252877 flow [2022-12-12 00:22:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:22:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:22:31,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3054 transitions. [2022-12-12 00:22:31,386 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5850574712643678 [2022-12-12 00:22:31,386 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 937 predicate places. [2022-12-12 00:22:31,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 1068 places, 1314 transitions, 252877 flow [2022-12-12 00:22:31,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1052 places, 1265 transitions, 242403 flow [2022-12-12 00:22:31,569 INFO L495 AbstractCegarLoop]: Abstraction has has 1052 places, 1265 transitions, 242403 flow [2022-12-12 00:22:31,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:31,570 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:31,570 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:31,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-12-12 00:22:31,570 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:31,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash 160489142, now seen corresponding path program 78 times [2022-12-12 00:22:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:31,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990773145] [2022-12-12 00:22:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:32,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:32,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990773145] [2022-12-12 00:22:32,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990773145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:32,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:32,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:32,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863027772] [2022-12-12 00:22:32,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:32,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:32,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:32,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:32,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:32,059 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:32,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1052 places, 1265 transitions, 242403 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:32,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:32,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:32,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:37,905 INFO L130 PetriNetUnfolder]: 1009/3041 cut-off events. [2022-12-12 00:22:37,905 INFO L131 PetriNetUnfolder]: For 1182894/1188890 co-relation queries the response was YES. [2022-12-12 00:22:37,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225637 conditions, 3041 events. 1009/3041 cut-off events. For 1182894/1188890 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 21728 event pairs, 8 based on Foata normal form. 18/2974 useless extension candidates. Maximal degree in co-relation 197839. Up to 1101 conditions per place. [2022-12-12 00:22:38,008 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1031 selfloop transitions, 124 changer transitions 52/1287 dead transitions. [2022-12-12 00:22:38,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1089 places, 1287 transitions, 249551 flow [2022-12-12 00:22:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:22:38,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:22:38,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3200 transitions. [2022-12-12 00:22:38,025 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5807622504537205 [2022-12-12 00:22:38,025 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 958 predicate places. [2022-12-12 00:22:38,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 1089 places, 1287 transitions, 249551 flow [2022-12-12 00:22:38,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1054 places, 1235 transitions, 238396 flow [2022-12-12 00:22:38,170 INFO L495 AbstractCegarLoop]: Abstraction has has 1054 places, 1235 transitions, 238396 flow [2022-12-12 00:22:38,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:38,171 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:38,171 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:38,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-12-12 00:22:38,171 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:38,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:38,171 INFO L85 PathProgramCache]: Analyzing trace with hash -478650692, now seen corresponding path program 79 times [2022-12-12 00:22:38,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:38,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346534511] [2022-12-12 00:22:38,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:38,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:38,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:38,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346534511] [2022-12-12 00:22:38,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346534511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:38,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:38,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:38,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167219853] [2022-12-12 00:22:38,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:38,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:38,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:38,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:38,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:38,644 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:38,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1054 places, 1235 transitions, 238396 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:38,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:38,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:38,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:43,888 INFO L130 PetriNetUnfolder]: 999/3046 cut-off events. [2022-12-12 00:22:43,889 INFO L131 PetriNetUnfolder]: For 1182691/1188721 co-relation queries the response was YES. [2022-12-12 00:22:43,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227466 conditions, 3046 events. 999/3046 cut-off events. For 1182691/1188721 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 21960 event pairs, 6 based on Foata normal form. 18/2976 useless extension candidates. Maximal degree in co-relation 199429. Up to 1105 conditions per place. [2022-12-12 00:22:43,977 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1037 selfloop transitions, 128 changer transitions 48/1293 dead transitions. [2022-12-12 00:22:43,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1090 places, 1293 transitions, 253417 flow [2022-12-12 00:22:43,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:22:43,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:22:43,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3133 transitions. [2022-12-12 00:22:43,979 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5839701770736253 [2022-12-12 00:22:43,979 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 959 predicate places. [2022-12-12 00:22:43,979 INFO L82 GeneralOperation]: Start removeDead. Operand has 1090 places, 1293 transitions, 253417 flow [2022-12-12 00:22:44,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1073 places, 1245 transitions, 242992 flow [2022-12-12 00:22:44,102 INFO L495 AbstractCegarLoop]: Abstraction has has 1073 places, 1245 transitions, 242992 flow [2022-12-12 00:22:44,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:44,103 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:44,103 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:44,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-12-12 00:22:44,103 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1995775500, now seen corresponding path program 80 times [2022-12-12 00:22:44,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:44,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395293914] [2022-12-12 00:22:44,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:44,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:44,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:44,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395293914] [2022-12-12 00:22:44,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395293914] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:44,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:44,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:44,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659047774] [2022-12-12 00:22:44,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:44,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:44,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:44,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:44,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:44,635 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:44,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1073 places, 1245 transitions, 242992 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:44,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:44,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:44,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:50,766 INFO L130 PetriNetUnfolder]: 1012/3069 cut-off events. [2022-12-12 00:22:50,766 INFO L131 PetriNetUnfolder]: For 1203356/1210108 co-relation queries the response was YES. [2022-12-12 00:22:50,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231004 conditions, 3069 events. 1012/3069 cut-off events. For 1203356/1210108 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 22108 event pairs, 5 based on Foata normal form. 20/2998 useless extension candidates. Maximal degree in co-relation 202479. Up to 1107 conditions per place. [2022-12-12 00:22:50,858 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1032 selfloop transitions, 124 changer transitions 57/1293 dead transitions. [2022-12-12 00:22:50,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1114 places, 1293 transitions, 255846 flow [2022-12-12 00:22:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 00:22:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 00:22:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3528 transitions. [2022-12-12 00:22:50,860 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5793103448275863 [2022-12-12 00:22:50,860 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 983 predicate places. [2022-12-12 00:22:50,861 INFO L82 GeneralOperation]: Start removeDead. Operand has 1114 places, 1293 transitions, 255846 flow [2022-12-12 00:22:50,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1091 places, 1236 transitions, 243257 flow [2022-12-12 00:22:50,995 INFO L495 AbstractCegarLoop]: Abstraction has has 1091 places, 1236 transitions, 243257 flow [2022-12-12 00:22:50,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:50,995 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:50,995 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:50,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-12-12 00:22:50,995 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:50,995 INFO L85 PathProgramCache]: Analyzing trace with hash -369760106, now seen corresponding path program 81 times [2022-12-12 00:22:50,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:50,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414861569] [2022-12-12 00:22:50,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:50,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:51,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:51,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:51,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414861569] [2022-12-12 00:22:51,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414861569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:51,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:51,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:51,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100574657] [2022-12-12 00:22:51,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:51,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:51,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:51,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:51,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:51,549 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:51,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1091 places, 1236 transitions, 243257 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:51,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:51,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:51,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:22:57,387 INFO L130 PetriNetUnfolder]: 1015/3089 cut-off events. [2022-12-12 00:22:57,387 INFO L131 PetriNetUnfolder]: For 1239559/1246341 co-relation queries the response was YES. [2022-12-12 00:22:57,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234384 conditions, 3089 events. 1015/3089 cut-off events. For 1239559/1246341 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 22308 event pairs, 7 based on Foata normal form. 20/3018 useless extension candidates. Maximal degree in co-relation 204893. Up to 1115 conditions per place. [2022-12-12 00:22:57,481 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1041 selfloop transitions, 122 changer transitions 57/1300 dead transitions. [2022-12-12 00:22:57,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1132 places, 1300 transitions, 259705 flow [2022-12-12 00:22:57,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 00:22:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 00:22:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3532 transitions. [2022-12-12 00:22:57,483 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5799671592775041 [2022-12-12 00:22:57,483 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1001 predicate places. [2022-12-12 00:22:57,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 1132 places, 1300 transitions, 259705 flow [2022-12-12 00:22:57,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1109 places, 1243 transitions, 247002 flow [2022-12-12 00:22:57,719 INFO L495 AbstractCegarLoop]: Abstraction has has 1109 places, 1243 transitions, 247002 flow [2022-12-12 00:22:57,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:57,719 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:22:57,719 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:22:57,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-12-12 00:22:57,719 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:22:57,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:22:57,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1593533944, now seen corresponding path program 82 times [2022-12-12 00:22:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:22:57,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103780593] [2022-12-12 00:22:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:22:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:22:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:22:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:22:58,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:22:58,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103780593] [2022-12-12 00:22:58,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103780593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:22:58,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:22:58,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:22:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758094550] [2022-12-12 00:22:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:22:58,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:22:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:22:58,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:22:58,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:22:58,181 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:22:58,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1109 places, 1243 transitions, 247002 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:22:58,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:22:58,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:22:58,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:23:05,343 INFO L130 PetriNetUnfolder]: 1003/3067 cut-off events. [2022-12-12 00:23:05,343 INFO L131 PetriNetUnfolder]: For 1266807/1273252 co-relation queries the response was YES. [2022-12-12 00:23:05,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235987 conditions, 3067 events. 1003/3067 cut-off events. For 1266807/1273252 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 22139 event pairs, 7 based on Foata normal form. 18/3003 useless extension candidates. Maximal degree in co-relation 206241. Up to 1117 conditions per place. [2022-12-12 00:23:05,440 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1046 selfloop transitions, 128 changer transitions 49/1303 dead transitions. [2022-12-12 00:23:05,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1145 places, 1303 transitions, 262889 flow [2022-12-12 00:23:05,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:23:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:23:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3142 transitions. [2022-12-12 00:23:05,442 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5856477166821994 [2022-12-12 00:23:05,442 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1014 predicate places. [2022-12-12 00:23:05,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 1145 places, 1303 transitions, 262889 flow [2022-12-12 00:23:05,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1128 places, 1254 transitions, 251925 flow [2022-12-12 00:23:05,701 INFO L495 AbstractCegarLoop]: Abstraction has has 1128 places, 1254 transitions, 251925 flow [2022-12-12 00:23:05,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:05,701 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:23:05,701 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:23:05,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-12-12 00:23:05,701 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:23:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:23:05,701 INFO L85 PathProgramCache]: Analyzing trace with hash -71098500, now seen corresponding path program 83 times [2022-12-12 00:23:05,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:23:05,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970879951] [2022-12-12 00:23:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:23:05,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:23:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:23:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:23:06,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:23:06,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970879951] [2022-12-12 00:23:06,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970879951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:23:06,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:23:06,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:23:06,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717003994] [2022-12-12 00:23:06,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:23:06,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:23:06,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:23:06,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:23:06,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:23:06,120 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:23:06,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1128 places, 1254 transitions, 251925 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:06,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:23:06,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:23:06,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:23:12,214 INFO L130 PetriNetUnfolder]: 998/3073 cut-off events. [2022-12-12 00:23:12,214 INFO L131 PetriNetUnfolder]: For 1305459/1311554 co-relation queries the response was YES. [2022-12-12 00:23:12,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237132 conditions, 3073 events. 998/3073 cut-off events. For 1305459/1311554 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 22198 event pairs, 5 based on Foata normal form. 16/3001 useless extension candidates. Maximal degree in co-relation 207388. Up to 1109 conditions per place. [2022-12-12 00:23:12,310 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1040 selfloop transitions, 125 changer transitions 49/1294 dead transitions. [2022-12-12 00:23:12,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1165 places, 1294 transitions, 263216 flow [2022-12-12 00:23:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:23:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:23:12,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3218 transitions. [2022-12-12 00:23:12,312 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5840290381125227 [2022-12-12 00:23:12,312 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1034 predicate places. [2022-12-12 00:23:12,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 1165 places, 1294 transitions, 263216 flow [2022-12-12 00:23:12,565 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1147 places, 1245 transitions, 252154 flow [2022-12-12 00:23:12,565 INFO L495 AbstractCegarLoop]: Abstraction has has 1147 places, 1245 transitions, 252154 flow [2022-12-12 00:23:12,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:12,566 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:23:12,566 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:23:12,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-12-12 00:23:12,566 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:23:12,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:23:12,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1393697030, now seen corresponding path program 84 times [2022-12-12 00:23:12,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:23:12,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033545605] [2022-12-12 00:23:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:23:12,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:23:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:23:12,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:23:12,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:23:12,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033545605] [2022-12-12 00:23:12,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033545605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:23:12,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:23:12,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:23:12,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464973598] [2022-12-12 00:23:12,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:23:12,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:23:12,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:23:12,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:23:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:23:12,996 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:23:12,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1147 places, 1245 transitions, 252154 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:12,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:23:12,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:23:12,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:23:19,304 INFO L130 PetriNetUnfolder]: 996/3078 cut-off events. [2022-12-12 00:23:19,304 INFO L131 PetriNetUnfolder]: For 1322180/1328347 co-relation queries the response was YES. [2022-12-12 00:23:19,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239538 conditions, 3078 events. 996/3078 cut-off events. For 1322180/1328347 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 22345 event pairs, 5 based on Foata normal form. 16/3006 useless extension candidates. Maximal degree in co-relation 209800. Up to 1110 conditions per place. [2022-12-12 00:23:19,517 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1039 selfloop transitions, 122 changer transitions 55/1296 dead transitions. [2022-12-12 00:23:19,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1189 places, 1296 transitions, 266093 flow [2022-12-12 00:23:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:23:19,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:23:19,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3598 transitions. [2022-12-12 00:23:19,520 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.577064955894146 [2022-12-12 00:23:19,520 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1058 predicate places. [2022-12-12 00:23:19,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 1189 places, 1296 transitions, 266093 flow [2022-12-12 00:23:19,649 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1165 places, 1241 transitions, 253558 flow [2022-12-12 00:23:19,650 INFO L495 AbstractCegarLoop]: Abstraction has has 1165 places, 1241 transitions, 253558 flow [2022-12-12 00:23:19,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:19,650 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:23:19,650 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:23:19,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-12-12 00:23:19,650 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:23:19,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:23:19,651 INFO L85 PathProgramCache]: Analyzing trace with hash 467355794, now seen corresponding path program 85 times [2022-12-12 00:23:19,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:23:19,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990442104] [2022-12-12 00:23:19,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:23:19,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:23:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:23:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:23:20,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:23:20,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990442104] [2022-12-12 00:23:20,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990442104] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:23:20,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:23:20,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:23:20,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335663427] [2022-12-12 00:23:20,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:23:20,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:23:20,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:23:20,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:23:20,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:23:20,103 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:23:20,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1165 places, 1241 transitions, 253558 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:20,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:23:20,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:23:20,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:23:26,168 INFO L130 PetriNetUnfolder]: 1002/3052 cut-off events. [2022-12-12 00:23:26,168 INFO L131 PetriNetUnfolder]: For 1338283/1345216 co-relation queries the response was YES. [2022-12-12 00:23:26,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241162 conditions, 3052 events. 1002/3052 cut-off events. For 1338283/1345216 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 21975 event pairs, 6 based on Foata normal form. 19/2986 useless extension candidates. Maximal degree in co-relation 221635. Up to 1098 conditions per place. [2022-12-12 00:23:26,259 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1033 selfloop transitions, 120 changer transitions 48/1281 dead transitions. [2022-12-12 00:23:26,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1202 places, 1281 transitions, 264983 flow [2022-12-12 00:23:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:23:26,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:23:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3209 transitions. [2022-12-12 00:23:26,261 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5823956442831216 [2022-12-12 00:23:26,262 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1071 predicate places. [2022-12-12 00:23:26,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 1202 places, 1281 transitions, 264983 flow [2022-12-12 00:23:26,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1184 places, 1233 transitions, 253982 flow [2022-12-12 00:23:26,390 INFO L495 AbstractCegarLoop]: Abstraction has has 1184 places, 1233 transitions, 253982 flow [2022-12-12 00:23:26,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:26,391 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:23:26,391 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:23:26,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-12-12 00:23:26,391 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:23:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:23:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash 400850292, now seen corresponding path program 86 times [2022-12-12 00:23:26,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:23:26,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015781788] [2022-12-12 00:23:26,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:23:26,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:23:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:23:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:23:26,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:23:26,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015781788] [2022-12-12 00:23:26,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015781788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:23:26,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:23:26,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:23:26,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668152007] [2022-12-12 00:23:26,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:23:26,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:23:26,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:23:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:23:26,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:23:26,875 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:23:26,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1184 places, 1233 transitions, 253982 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:26,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:23:26,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:23:26,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:23:32,787 INFO L130 PetriNetUnfolder]: 985/3026 cut-off events. [2022-12-12 00:23:32,787 INFO L131 PetriNetUnfolder]: For 1335182/1341161 co-relation queries the response was YES. [2022-12-12 00:23:32,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241323 conditions, 3026 events. 985/3026 cut-off events. For 1335182/1341161 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 21861 event pairs, 5 based on Foata normal form. 18/2963 useless extension candidates. Maximal degree in co-relation 210830. Up to 1088 conditions per place. [2022-12-12 00:23:32,880 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1031 selfloop transitions, 110 changer transitions 51/1272 dead transitions. [2022-12-12 00:23:32,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1221 places, 1272 transitions, 265218 flow [2022-12-12 00:23:32,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:23:32,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:23:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3206 transitions. [2022-12-12 00:23:32,882 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5818511796733212 [2022-12-12 00:23:32,882 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1090 predicate places. [2022-12-12 00:23:32,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 1221 places, 1272 transitions, 265218 flow [2022-12-12 00:23:33,024 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1193 places, 1221 transitions, 253350 flow [2022-12-12 00:23:33,024 INFO L495 AbstractCegarLoop]: Abstraction has has 1193 places, 1221 transitions, 253350 flow [2022-12-12 00:23:33,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:33,024 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:23:33,024 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:23:33,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-12-12 00:23:33,025 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:23:33,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:23:33,025 INFO L85 PathProgramCache]: Analyzing trace with hash -323552858, now seen corresponding path program 87 times [2022-12-12 00:23:33,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:23:33,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503241366] [2022-12-12 00:23:33,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:23:33,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:23:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:23:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:23:33,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:23:33,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503241366] [2022-12-12 00:23:33,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503241366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:23:33,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:23:33,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:23:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15843490] [2022-12-12 00:23:33,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:23:33,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:23:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:23:33,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:23:33,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:23:33,489 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:23:33,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1193 places, 1221 transitions, 253350 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:33,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:23:33,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:23:33,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:23:39,441 INFO L130 PetriNetUnfolder]: 968/2987 cut-off events. [2022-12-12 00:23:39,441 INFO L131 PetriNetUnfolder]: For 1318867/1325222 co-relation queries the response was YES. [2022-12-12 00:23:39,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238942 conditions, 2987 events. 968/2987 cut-off events. For 1318867/1325222 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 21494 event pairs, 5 based on Foata normal form. 20/2920 useless extension candidates. Maximal degree in co-relation 209179. Up to 1061 conditions per place. [2022-12-12 00:23:39,530 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1008 selfloop transitions, 90 changer transitions 57/1235 dead transitions. [2022-12-12 00:23:39,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1229 places, 1235 transitions, 259168 flow [2022-12-12 00:23:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:23:39,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:23:39,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3119 transitions. [2022-12-12 00:23:39,533 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5813606710158434 [2022-12-12 00:23:39,534 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1098 predicate places. [2022-12-12 00:23:39,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 1229 places, 1235 transitions, 259168 flow [2022-12-12 00:23:39,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1164 places, 1178 transitions, 246082 flow [2022-12-12 00:23:39,659 INFO L495 AbstractCegarLoop]: Abstraction has has 1164 places, 1178 transitions, 246082 flow [2022-12-12 00:23:39,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:39,660 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:23:39,660 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:23:39,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-12-12 00:23:39,661 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:23:39,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:23:39,661 INFO L85 PathProgramCache]: Analyzing trace with hash 706604114, now seen corresponding path program 88 times [2022-12-12 00:23:39,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:23:39,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411616596] [2022-12-12 00:23:39,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:23:39,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:23:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:23:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:23:40,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:23:40,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411616596] [2022-12-12 00:23:40,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411616596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:23:40,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:23:40,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:23:40,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609077452] [2022-12-12 00:23:40,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:23:40,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:23:40,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:23:40,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:23:40,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:23:40,252 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:23:40,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1164 places, 1178 transitions, 246082 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:40,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:23:40,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:23:40,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:23:46,840 INFO L130 PetriNetUnfolder]: 1003/3070 cut-off events. [2022-12-12 00:23:46,841 INFO L131 PetriNetUnfolder]: For 1388949/1395632 co-relation queries the response was YES. [2022-12-12 00:23:46,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249715 conditions, 3070 events. 1003/3070 cut-off events. For 1388949/1395632 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 22333 event pairs, 5 based on Foata normal form. 20/3003 useless extension candidates. Maximal degree in co-relation 217753. Up to 1114 conditions per place. [2022-12-12 00:23:46,938 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1006 selfloop transitions, 144 changer transitions 69/1299 dead transitions. [2022-12-12 00:23:46,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1212 places, 1299 transitions, 276293 flow [2022-12-12 00:23:46,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 00:23:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 00:23:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4080 transitions. [2022-12-12 00:23:46,940 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5742434904996482 [2022-12-12 00:23:46,941 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1081 predicate places. [2022-12-12 00:23:46,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 1212 places, 1299 transitions, 276293 flow [2022-12-12 00:23:47,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1181 places, 1230 transitions, 260339 flow [2022-12-12 00:23:47,149 INFO L495 AbstractCegarLoop]: Abstraction has has 1181 places, 1230 transitions, 260339 flow [2022-12-12 00:23:47,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:47,150 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:23:47,150 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:23:47,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-12-12 00:23:47,150 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:23:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:23:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1139341694, now seen corresponding path program 89 times [2022-12-12 00:23:47,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:23:47,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154702001] [2022-12-12 00:23:47,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:23:47,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:23:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:23:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:23:47,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:23:47,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154702001] [2022-12-12 00:23:47,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154702001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:23:47,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:23:47,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:23:47,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84152991] [2022-12-12 00:23:47,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:23:47,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:23:47,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:23:47,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:23:47,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:23:47,627 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:23:47,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1181 places, 1230 transitions, 260339 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:47,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:23:47,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:23:47,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:23:53,897 INFO L130 PetriNetUnfolder]: 983/3006 cut-off events. [2022-12-12 00:23:53,897 INFO L131 PetriNetUnfolder]: For 1383773/1390270 co-relation queries the response was YES. [2022-12-12 00:23:53,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247102 conditions, 3006 events. 983/3006 cut-off events. For 1383773/1390270 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 21570 event pairs, 5 based on Foata normal form. 18/2943 useless extension candidates. Maximal degree in co-relation 216129. Up to 1086 conditions per place. [2022-12-12 00:23:53,991 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1026 selfloop transitions, 111 changer transitions 50/1267 dead transitions. [2022-12-12 00:23:53,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1217 places, 1267 transitions, 271273 flow [2022-12-12 00:23:53,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:23:53,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:23:53,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3131 transitions. [2022-12-12 00:23:53,993 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5835973904939422 [2022-12-12 00:23:53,993 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1086 predicate places. [2022-12-12 00:23:53,993 INFO L82 GeneralOperation]: Start removeDead. Operand has 1217 places, 1267 transitions, 271273 flow [2022-12-12 00:23:54,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1190 places, 1217 transitions, 259364 flow [2022-12-12 00:23:54,128 INFO L495 AbstractCegarLoop]: Abstraction has has 1190 places, 1217 transitions, 259364 flow [2022-12-12 00:23:54,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:54,129 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:23:54,129 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:23:54,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-12-12 00:23:54,129 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:23:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:23:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1907977380, now seen corresponding path program 90 times [2022-12-12 00:23:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:23:54,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663549684] [2022-12-12 00:23:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:23:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:23:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:23:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:23:54,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:23:54,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663549684] [2022-12-12 00:23:54,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663549684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:23:54,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:23:54,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:23:54,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394248813] [2022-12-12 00:23:54,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:23:54,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:23:54,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:23:54,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:23:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:23:54,608 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:23:54,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1190 places, 1217 transitions, 259364 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:23:54,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:23:54,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:23:54,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:00,464 INFO L130 PetriNetUnfolder]: 969/2982 cut-off events. [2022-12-12 00:24:00,465 INFO L131 PetriNetUnfolder]: For 1427244/1433736 co-relation queries the response was YES. [2022-12-12 00:24:00,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245358 conditions, 2982 events. 969/2982 cut-off events. For 1427244/1433736 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 21407 event pairs, 6 based on Foata normal form. 18/2912 useless extension candidates. Maximal degree in co-relation 226253. Up to 1061 conditions per place. [2022-12-12 00:24:00,560 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1007 selfloop transitions, 95 changer transitions 53/1235 dead transitions. [2022-12-12 00:24:00,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1227 places, 1235 transitions, 266071 flow [2022-12-12 00:24:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:24:00,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:24:00,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3199 transitions. [2022-12-12 00:24:00,562 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5805807622504537 [2022-12-12 00:24:00,562 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1096 predicate places. [2022-12-12 00:24:00,562 INFO L82 GeneralOperation]: Start removeDead. Operand has 1227 places, 1235 transitions, 266071 flow [2022-12-12 00:24:00,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1179 places, 1182 transitions, 253456 flow [2022-12-12 00:24:00,702 INFO L495 AbstractCegarLoop]: Abstraction has has 1179 places, 1182 transitions, 253456 flow [2022-12-12 00:24:00,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:00,703 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:00,703 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:00,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-12-12 00:24:00,703 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:00,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:00,703 INFO L85 PathProgramCache]: Analyzing trace with hash 144447094, now seen corresponding path program 91 times [2022-12-12 00:24:00,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:00,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248684199] [2022-12-12 00:24:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:00,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:01,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:01,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248684199] [2022-12-12 00:24:01,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248684199] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:01,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:01,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:01,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556683494] [2022-12-12 00:24:01,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:01,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:01,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:01,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:01,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:01,271 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:01,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1179 places, 1182 transitions, 253456 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:01,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:01,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:01,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:07,788 INFO L130 PetriNetUnfolder]: 979/3011 cut-off events. [2022-12-12 00:24:07,789 INFO L131 PetriNetUnfolder]: For 1473045/1479767 co-relation queries the response was YES. [2022-12-12 00:24:07,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250717 conditions, 3011 events. 979/3011 cut-off events. For 1473045/1479767 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 21758 event pairs, 8 based on Foata normal form. 22/2950 useless extension candidates. Maximal degree in co-relation 231462. Up to 1081 conditions per place. [2022-12-12 00:24:07,880 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 970 selfloop transitions, 132 changer transitions 69/1251 dead transitions. [2022-12-12 00:24:07,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1225 places, 1251 transitions, 272445 flow [2022-12-12 00:24:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 00:24:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 00:24:07,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 3924 transitions. [2022-12-12 00:24:07,883 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5757887013939839 [2022-12-12 00:24:07,883 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1094 predicate places. [2022-12-12 00:24:07,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 1225 places, 1251 transitions, 272445 flow [2022-12-12 00:24:08,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1196 places, 1182 transitions, 256077 flow [2022-12-12 00:24:08,014 INFO L495 AbstractCegarLoop]: Abstraction has has 1196 places, 1182 transitions, 256077 flow [2022-12-12 00:24:08,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:08,014 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:08,014 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:08,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-12-12 00:24:08,014 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:08,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:08,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1386233664, now seen corresponding path program 92 times [2022-12-12 00:24:08,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:08,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265668576] [2022-12-12 00:24:08,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:08,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:08,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:08,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265668576] [2022-12-12 00:24:08,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265668576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:08,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:08,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:08,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637880304] [2022-12-12 00:24:08,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:08,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:08,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:08,577 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:08,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1196 places, 1182 transitions, 256077 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:08,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:08,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:08,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:14,797 INFO L130 PetriNetUnfolder]: 985/3036 cut-off events. [2022-12-12 00:24:14,797 INFO L131 PetriNetUnfolder]: For 1515543/1521814 co-relation queries the response was YES. [2022-12-12 00:24:14,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255112 conditions, 3036 events. 985/3036 cut-off events. For 1515543/1521814 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 21936 event pairs, 6 based on Foata normal form. 20/2975 useless extension candidates. Maximal degree in co-relation 221297. Up to 1099 conditions per place. [2022-12-12 00:24:14,897 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 993 selfloop transitions, 140 changer transitions 57/1270 dead transitions. [2022-12-12 00:24:14,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1239 places, 1270 transitions, 279893 flow [2022-12-12 00:24:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:24:14,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:24:14,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3684 transitions. [2022-12-12 00:24:14,899 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5774294670846395 [2022-12-12 00:24:14,899 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1108 predicate places. [2022-12-12 00:24:14,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 1239 places, 1270 transitions, 279893 flow [2022-12-12 00:24:15,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1214 places, 1213 transitions, 265936 flow [2022-12-12 00:24:15,047 INFO L495 AbstractCegarLoop]: Abstraction has has 1214 places, 1213 transitions, 265936 flow [2022-12-12 00:24:15,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:15,047 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:15,047 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:15,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-12-12 00:24:15,047 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:15,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:15,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1363605616, now seen corresponding path program 93 times [2022-12-12 00:24:15,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:15,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7319903] [2022-12-12 00:24:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:15,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:15,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:15,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:15,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7319903] [2022-12-12 00:24:15,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7319903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:15,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:15,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:15,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885545799] [2022-12-12 00:24:15,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:15,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:15,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:15,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:15,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:15,482 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:15,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1214 places, 1213 transitions, 265936 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:15,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:15,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:15,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:21,705 INFO L130 PetriNetUnfolder]: 976/3030 cut-off events. [2022-12-12 00:24:21,705 INFO L131 PetriNetUnfolder]: For 1526502/1533647 co-relation queries the response was YES. [2022-12-12 00:24:21,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255021 conditions, 3030 events. 976/3030 cut-off events. For 1526502/1533647 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 21954 event pairs, 5 based on Foata normal form. 16/2958 useless extension candidates. Maximal degree in co-relation 221497. Up to 1085 conditions per place. [2022-12-12 00:24:21,804 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 986 selfloop transitions, 138 changer transitions 49/1253 dead transitions. [2022-12-12 00:24:21,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1251 places, 1253 transitions, 277945 flow [2022-12-12 00:24:21,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:24:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:24:21,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3211 transitions. [2022-12-12 00:24:21,806 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5827586206896552 [2022-12-12 00:24:21,806 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1120 predicate places. [2022-12-12 00:24:21,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 1251 places, 1253 transitions, 277945 flow [2022-12-12 00:24:22,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1233 places, 1204 transitions, 265903 flow [2022-12-12 00:24:22,006 INFO L495 AbstractCegarLoop]: Abstraction has has 1233 places, 1204 transitions, 265903 flow [2022-12-12 00:24:22,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:22,007 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:22,007 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:22,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-12-12 00:24:22,007 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:22,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:22,007 INFO L85 PathProgramCache]: Analyzing trace with hash -897290642, now seen corresponding path program 94 times [2022-12-12 00:24:22,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:22,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856651469] [2022-12-12 00:24:22,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:22,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:22,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:22,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:22,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856651469] [2022-12-12 00:24:22,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856651469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:22,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:22,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:22,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613292742] [2022-12-12 00:24:22,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:22,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:22,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:22,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:22,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:22,435 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:22,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1233 places, 1204 transitions, 265903 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:22,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:22,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:22,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:29,534 INFO L130 PetriNetUnfolder]: 1008/3112 cut-off events. [2022-12-12 00:24:29,534 INFO L131 PetriNetUnfolder]: For 1652134/1659472 co-relation queries the response was YES. [2022-12-12 00:24:29,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263956 conditions, 3112 events. 1008/3112 cut-off events. For 1652134/1659472 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 22622 event pairs, 6 based on Foata normal form. 19/3040 useless extension candidates. Maximal degree in co-relation 242971. Up to 1121 conditions per place. [2022-12-12 00:24:29,630 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1007 selfloop transitions, 148 changer transitions 57/1292 dead transitions. [2022-12-12 00:24:29,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1276 places, 1292 transitions, 290115 flow [2022-12-12 00:24:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:24:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:24:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3684 transitions. [2022-12-12 00:24:29,632 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5774294670846395 [2022-12-12 00:24:29,637 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1145 predicate places. [2022-12-12 00:24:29,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 1276 places, 1292 transitions, 290115 flow [2022-12-12 00:24:29,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1251 places, 1235 transitions, 275930 flow [2022-12-12 00:24:29,774 INFO L495 AbstractCegarLoop]: Abstraction has has 1251 places, 1235 transitions, 275930 flow [2022-12-12 00:24:29,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:29,775 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:29,775 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:29,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-12-12 00:24:29,775 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:29,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:29,775 INFO L85 PathProgramCache]: Analyzing trace with hash -618356552, now seen corresponding path program 95 times [2022-12-12 00:24:29,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:29,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550890253] [2022-12-12 00:24:29,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:29,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:30,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:30,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:30,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550890253] [2022-12-12 00:24:30,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550890253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:30,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:30,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:30,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026027985] [2022-12-12 00:24:30,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:30,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:30,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:30,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:30,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:30,284 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:30,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1251 places, 1235 transitions, 275930 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:30,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:30,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:30,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:37,245 INFO L130 PetriNetUnfolder]: 1002/3095 cut-off events. [2022-12-12 00:24:37,245 INFO L131 PetriNetUnfolder]: For 1619147/1626362 co-relation queries the response was YES. [2022-12-12 00:24:37,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266823 conditions, 3095 events. 1002/3095 cut-off events. For 1619147/1626362 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 22627 event pairs, 5 based on Foata normal form. 20/3028 useless extension candidates. Maximal degree in co-relation 231214. Up to 1127 conditions per place. [2022-12-12 00:24:37,347 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 955 selfloop transitions, 191 changer transitions 77/1303 dead transitions. [2022-12-12 00:24:37,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1303 places, 1303 transitions, 294886 flow [2022-12-12 00:24:37,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 00:24:37,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 00:24:37,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4379 transitions. [2022-12-12 00:24:37,350 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.569811320754717 [2022-12-12 00:24:37,350 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1172 predicate places. [2022-12-12 00:24:37,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 1303 places, 1303 transitions, 294886 flow [2022-12-12 00:24:37,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1267 places, 1226 transitions, 276233 flow [2022-12-12 00:24:37,501 INFO L495 AbstractCegarLoop]: Abstraction has has 1267 places, 1226 transitions, 276233 flow [2022-12-12 00:24:37,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:37,501 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:37,501 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:37,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-12-12 00:24:37,501 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:37,501 INFO L85 PathProgramCache]: Analyzing trace with hash -349966636, now seen corresponding path program 96 times [2022-12-12 00:24:37,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:37,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808483981] [2022-12-12 00:24:37,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:37,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:38,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:38,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808483981] [2022-12-12 00:24:38,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808483981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:38,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:38,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:38,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914113773] [2022-12-12 00:24:38,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:38,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:38,029 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:38,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1267 places, 1226 transitions, 276233 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:38,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:38,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:38,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:43,959 INFO L130 PetriNetUnfolder]: 996/3081 cut-off events. [2022-12-12 00:24:43,959 INFO L131 PetriNetUnfolder]: For 1672302/1680244 co-relation queries the response was YES. [2022-12-12 00:24:43,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265721 conditions, 3081 events. 996/3081 cut-off events. For 1672302/1680244 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 22361 event pairs, 6 based on Foata normal form. 20/3010 useless extension candidates. Maximal degree in co-relation 231120. Up to 1107 conditions per place. [2022-12-12 00:24:44,127 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 1001 selfloop transitions, 143 changer transitions 48/1272 dead transitions. [2022-12-12 00:24:44,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1302 places, 1272 transitions, 290000 flow [2022-12-12 00:24:44,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:24:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:24:44,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3051 transitions. [2022-12-12 00:24:44,129 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5844827586206897 [2022-12-12 00:24:44,130 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1171 predicate places. [2022-12-12 00:24:44,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 1302 places, 1272 transitions, 290000 flow [2022-12-12 00:24:44,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1286 places, 1224 transitions, 277943 flow [2022-12-12 00:24:44,283 INFO L495 AbstractCegarLoop]: Abstraction has has 1286 places, 1224 transitions, 277943 flow [2022-12-12 00:24:44,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:44,284 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:44,284 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:44,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-12-12 00:24:44,284 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash 857335324, now seen corresponding path program 97 times [2022-12-12 00:24:44,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:44,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389846418] [2022-12-12 00:24:44,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:44,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:44,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:44,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389846418] [2022-12-12 00:24:44,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389846418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:44,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:44,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:44,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160954011] [2022-12-12 00:24:44,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:44,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:44,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:44,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:44,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:44,737 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:44,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1286 places, 1224 transitions, 277943 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:44,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:44,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:44,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:51,307 INFO L130 PetriNetUnfolder]: 970/2999 cut-off events. [2022-12-12 00:24:51,307 INFO L131 PetriNetUnfolder]: For 1603792/1611591 co-relation queries the response was YES. [2022-12-12 00:24:51,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263051 conditions, 2999 events. 970/2999 cut-off events. For 1603792/1611591 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 21571 event pairs, 7 based on Foata normal form. 18/2935 useless extension candidates. Maximal degree in co-relation 228727. Up to 1083 conditions per place. [2022-12-12 00:24:51,407 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 987 selfloop transitions, 125 changer transitions 53/1245 dead transitions. [2022-12-12 00:24:51,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1323 places, 1245 transitions, 285564 flow [2022-12-12 00:24:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:24:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:24:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3201 transitions. [2022-12-12 00:24:51,409 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5809437386569873 [2022-12-12 00:24:51,410 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1192 predicate places. [2022-12-12 00:24:51,410 INFO L82 GeneralOperation]: Start removeDead. Operand has 1323 places, 1245 transitions, 285564 flow [2022-12-12 00:24:51,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1288 places, 1192 transitions, 272152 flow [2022-12-12 00:24:51,614 INFO L495 AbstractCegarLoop]: Abstraction has has 1288 places, 1192 transitions, 272152 flow [2022-12-12 00:24:51,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:51,614 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:51,614 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:51,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-12-12 00:24:51,614 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:51,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:51,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1390578122, now seen corresponding path program 98 times [2022-12-12 00:24:51,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:51,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869629778] [2022-12-12 00:24:51,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:51,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:52,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:52,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869629778] [2022-12-12 00:24:52,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869629778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:52,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:52,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:52,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384320293] [2022-12-12 00:24:52,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:52,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:52,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:52,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:52,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:52,035 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:52,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1288 places, 1192 transitions, 272152 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:52,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:52,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:52,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:24:58,242 INFO L130 PetriNetUnfolder]: 970/3000 cut-off events. [2022-12-12 00:24:58,243 INFO L131 PetriNetUnfolder]: For 1649711/1657485 co-relation queries the response was YES. [2022-12-12 00:24:58,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262743 conditions, 3000 events. 970/3000 cut-off events. For 1649711/1657485 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 21552 event pairs, 5 based on Foata normal form. 18/2927 useless extension candidates. Maximal degree in co-relation 228983. Up to 1060 conditions per place. [2022-12-12 00:24:58,410 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 970 selfloop transitions, 117 changer transitions 52/1219 dead transitions. [2022-12-12 00:24:58,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1323 places, 1219 transitions, 281267 flow [2022-12-12 00:24:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:24:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:24:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3046 transitions. [2022-12-12 00:24:58,412 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5835249042145594 [2022-12-12 00:24:58,412 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1192 predicate places. [2022-12-12 00:24:58,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 1323 places, 1219 transitions, 281267 flow [2022-12-12 00:24:58,548 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1290 places, 1167 transitions, 268032 flow [2022-12-12 00:24:58,548 INFO L495 AbstractCegarLoop]: Abstraction has has 1290 places, 1167 transitions, 268032 flow [2022-12-12 00:24:58,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:58,548 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:24:58,548 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:24:58,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-12-12 00:24:58,549 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:24:58,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:24:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1594620532, now seen corresponding path program 99 times [2022-12-12 00:24:58,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:24:58,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742880453] [2022-12-12 00:24:58,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:24:58,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:24:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:24:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:24:59,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:24:59,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742880453] [2022-12-12 00:24:59,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742880453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:24:59,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:24:59,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:24:59,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746281578] [2022-12-12 00:24:59,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:24:59,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:24:59,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:24:59,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:24:59,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:24:59,008 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:24:59,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1290 places, 1167 transitions, 268032 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:24:59,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:24:59,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:24:59,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:25:05,443 INFO L130 PetriNetUnfolder]: 960/3002 cut-off events. [2022-12-12 00:25:05,444 INFO L131 PetriNetUnfolder]: For 1682963/1690180 co-relation queries the response was YES. [2022-12-12 00:25:05,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264794 conditions, 3002 events. 960/3002 cut-off events. For 1682963/1690180 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 21738 event pairs, 3 based on Foata normal form. 20/2935 useless extension candidates. Maximal degree in co-relation 229386. Up to 1066 conditions per place. [2022-12-12 00:25:05,565 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 974 selfloop transitions, 112 changer transitions 57/1223 dead transitions. [2022-12-12 00:25:05,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1332 places, 1223 transitions, 284770 flow [2022-12-12 00:25:05,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:25:05,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:25:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3605 transitions. [2022-12-12 00:25:05,568 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5781876503608661 [2022-12-12 00:25:05,568 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1201 predicate places. [2022-12-12 00:25:05,568 INFO L82 GeneralOperation]: Start removeDead. Operand has 1332 places, 1223 transitions, 284770 flow [2022-12-12 00:25:05,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1308 places, 1166 transitions, 270015 flow [2022-12-12 00:25:05,716 INFO L495 AbstractCegarLoop]: Abstraction has has 1308 places, 1166 transitions, 270015 flow [2022-12-12 00:25:05,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:05,716 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:25:05,716 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:25:05,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-12-12 00:25:05,716 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:25:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:25:05,716 INFO L85 PathProgramCache]: Analyzing trace with hash 292025638, now seen corresponding path program 100 times [2022-12-12 00:25:05,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:25:05,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937191702] [2022-12-12 00:25:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:25:05,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:25:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:25:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:25:06,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:25:06,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937191702] [2022-12-12 00:25:06,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937191702] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:25:06,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:25:06,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:25:06,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763686814] [2022-12-12 00:25:06,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:25:06,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:25:06,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:25:06,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:25:06,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:25:06,170 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:25:06,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1308 places, 1166 transitions, 270015 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:06,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:25:06,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:25:06,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:25:12,136 INFO L130 PetriNetUnfolder]: 959/2983 cut-off events. [2022-12-12 00:25:12,137 INFO L131 PetriNetUnfolder]: For 1675628/1682559 co-relation queries the response was YES. [2022-12-12 00:25:12,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266859 conditions, 2983 events. 959/2983 cut-off events. For 1675628/1682559 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 21503 event pairs, 5 based on Foata normal form. 18/2920 useless extension candidates. Maximal degree in co-relation 231758. Up to 1067 conditions per place. [2022-12-12 00:25:12,282 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 979 selfloop transitions, 117 changer transitions 48/1224 dead transitions. [2022-12-12 00:25:12,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1344 places, 1224 transitions, 287334 flow [2022-12-12 00:25:12,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:25:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:25:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3133 transitions. [2022-12-12 00:25:12,284 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5839701770736253 [2022-12-12 00:25:12,285 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1213 predicate places. [2022-12-12 00:25:12,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 1344 places, 1224 transitions, 287334 flow [2022-12-12 00:25:12,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1327 places, 1176 transitions, 274893 flow [2022-12-12 00:25:12,430 INFO L495 AbstractCegarLoop]: Abstraction has has 1327 places, 1176 transitions, 274893 flow [2022-12-12 00:25:12,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:12,431 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:25:12,431 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:25:12,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-12-12 00:25:12,431 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:25:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:25:12,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1376387090, now seen corresponding path program 101 times [2022-12-12 00:25:12,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:25:12,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945357403] [2022-12-12 00:25:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:25:12,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:25:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:25:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:25:12,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:25:12,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945357403] [2022-12-12 00:25:12,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945357403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:25:12,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:25:12,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:25:12,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305384785] [2022-12-12 00:25:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:25:12,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:25:12,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:25:12,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:25:12,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:25:12,957 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:25:12,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1327 places, 1176 transitions, 274893 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:12,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:25:12,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:25:12,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:25:19,776 INFO L130 PetriNetUnfolder]: 963/3003 cut-off events. [2022-12-12 00:25:19,776 INFO L131 PetriNetUnfolder]: For 1745554/1752528 co-relation queries the response was YES. [2022-12-12 00:25:19,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270460 conditions, 3003 events. 963/3003 cut-off events. For 1745554/1752528 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 21773 event pairs, 6 based on Foata normal form. 20/2940 useless extension candidates. Maximal degree in co-relation 249705. Up to 1074 conditions per place. [2022-12-12 00:25:19,913 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 928 selfloop transitions, 155 changer transitions 69/1232 dead transitions. [2022-12-12 00:25:19,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1376 places, 1232 transitions, 291782 flow [2022-12-12 00:25:19,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 00:25:19,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 00:25:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 4149 transitions. [2022-12-12 00:25:19,916 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5722758620689655 [2022-12-12 00:25:19,917 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1245 predicate places. [2022-12-12 00:25:19,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 1376 places, 1232 transitions, 291782 flow [2022-12-12 00:25:20,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1344 places, 1163 transitions, 274034 flow [2022-12-12 00:25:20,088 INFO L495 AbstractCegarLoop]: Abstraction has has 1344 places, 1163 transitions, 274034 flow [2022-12-12 00:25:20,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:20,088 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:25:20,089 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:25:20,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-12-12 00:25:20,089 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:25:20,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:25:20,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1979405760, now seen corresponding path program 102 times [2022-12-12 00:25:20,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:25:20,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64714038] [2022-12-12 00:25:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:25:20,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:25:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:25:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:25:20,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:25:20,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64714038] [2022-12-12 00:25:20,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64714038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:25:20,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:25:20,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:25:20,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624198926] [2022-12-12 00:25:20,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:25:20,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:25:20,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:25:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:25:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:25:20,636 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:25:20,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1344 places, 1163 transitions, 274034 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:20,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:25:20,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:25:20,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:25:26,864 INFO L130 PetriNetUnfolder]: 958/3003 cut-off events. [2022-12-12 00:25:26,864 INFO L131 PetriNetUnfolder]: For 1807248/1814983 co-relation queries the response was YES. [2022-12-12 00:25:26,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269220 conditions, 3003 events. 958/3003 cut-off events. For 1807248/1814983 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 21626 event pairs, 5 based on Foata normal form. 19/2931 useless extension candidates. Maximal degree in co-relation 233821. Up to 1050 conditions per place. [2022-12-12 00:25:26,966 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 965 selfloop transitions, 106 changer transitions 51/1202 dead transitions. [2022-12-12 00:25:26,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1381 places, 1202 transitions, 286378 flow [2022-12-12 00:25:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:25:26,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:25:26,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3206 transitions. [2022-12-12 00:25:26,968 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5818511796733212 [2022-12-12 00:25:26,972 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1250 predicate places. [2022-12-12 00:25:26,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 1381 places, 1202 transitions, 286378 flow [2022-12-12 00:25:27,121 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1353 places, 1151 transitions, 272878 flow [2022-12-12 00:25:27,121 INFO L495 AbstractCegarLoop]: Abstraction has has 1353 places, 1151 transitions, 272878 flow [2022-12-12 00:25:27,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:27,121 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:25:27,121 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:25:27,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-12-12 00:25:27,122 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:25:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:25:27,128 INFO L85 PathProgramCache]: Analyzing trace with hash 739917758, now seen corresponding path program 103 times [2022-12-12 00:25:27,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:25:27,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096830364] [2022-12-12 00:25:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:25:27,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:25:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:25:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:25:27,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:25:27,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096830364] [2022-12-12 00:25:27,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096830364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:25:27,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:25:27,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:25:27,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923853117] [2022-12-12 00:25:27,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:25:27,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:25:27,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:25:27,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:25:27,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:25:27,655 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:25:27,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1353 places, 1151 transitions, 272878 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:27,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:25:27,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:25:27,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:25:33,849 INFO L130 PetriNetUnfolder]: 959/2971 cut-off events. [2022-12-12 00:25:33,849 INFO L131 PetriNetUnfolder]: For 1758469/1767059 co-relation queries the response was YES. [2022-12-12 00:25:33,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271618 conditions, 2971 events. 959/2971 cut-off events. For 1758469/1767059 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 21328 event pairs, 7 based on Foata normal form. 18/2904 useless extension candidates. Maximal degree in co-relation 236265. Up to 1052 conditions per place. [2022-12-12 00:25:33,952 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 960 selfloop transitions, 117 changer transitions 48/1205 dead transitions. [2022-12-12 00:25:33,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1390 places, 1205 transitions, 289355 flow [2022-12-12 00:25:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:25:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:25:33,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3209 transitions. [2022-12-12 00:25:33,954 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5823956442831216 [2022-12-12 00:25:33,954 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1259 predicate places. [2022-12-12 00:25:33,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 1390 places, 1205 transitions, 289355 flow [2022-12-12 00:25:34,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1372 places, 1157 transitions, 276626 flow [2022-12-12 00:25:34,107 INFO L495 AbstractCegarLoop]: Abstraction has has 1372 places, 1157 transitions, 276626 flow [2022-12-12 00:25:34,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:34,108 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:25:34,108 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:25:34,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-12-12 00:25:34,108 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:25:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:25:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2105984560, now seen corresponding path program 104 times [2022-12-12 00:25:34,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:25:34,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447553668] [2022-12-12 00:25:34,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:25:34,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:25:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:25:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:25:34,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:25:34,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447553668] [2022-12-12 00:25:34,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447553668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:25:34,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:25:34,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:25:34,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100113941] [2022-12-12 00:25:34,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:25:34,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:25:34,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:25:34,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:25:34,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:25:34,520 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:25:34,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1372 places, 1157 transitions, 276626 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:34,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:25:34,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:25:34,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:25:40,399 INFO L130 PetriNetUnfolder]: 939/2970 cut-off events. [2022-12-12 00:25:40,399 INFO L131 PetriNetUnfolder]: For 1832415/1839296 co-relation queries the response was YES. [2022-12-12 00:25:40,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270406 conditions, 2970 events. 939/2970 cut-off events. For 1832415/1839296 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 21436 event pairs, 3 based on Foata normal form. 18/2901 useless extension candidates. Maximal degree in co-relation 234792. Up to 1037 conditions per place. [2022-12-12 00:25:40,578 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 952 selfloop transitions, 108 changer transitions 50/1190 dead transitions. [2022-12-12 00:25:40,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1408 places, 1190 transitions, 287493 flow [2022-12-12 00:25:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:25:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:25:40,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3131 transitions. [2022-12-12 00:25:40,580 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5835973904939422 [2022-12-12 00:25:40,580 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1277 predicate places. [2022-12-12 00:25:40,580 INFO L82 GeneralOperation]: Start removeDead. Operand has 1408 places, 1190 transitions, 287493 flow [2022-12-12 00:25:40,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1387 places, 1140 transitions, 274081 flow [2022-12-12 00:25:40,733 INFO L495 AbstractCegarLoop]: Abstraction has has 1387 places, 1140 transitions, 274081 flow [2022-12-12 00:25:40,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:40,734 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:25:40,734 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:25:40,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-12-12 00:25:40,734 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:25:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:25:40,734 INFO L85 PathProgramCache]: Analyzing trace with hash -163884374, now seen corresponding path program 105 times [2022-12-12 00:25:40,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:25:40,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773732680] [2022-12-12 00:25:40,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:25:40,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:25:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:25:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:25:41,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:25:41,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773732680] [2022-12-12 00:25:41,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773732680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:25:41,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:25:41,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:25:41,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559937881] [2022-12-12 00:25:41,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:25:41,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:25:41,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:25:41,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:25:41,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:25:41,192 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:25:41,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1387 places, 1140 transitions, 274081 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:41,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:25:41,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:25:41,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:25:47,738 INFO L130 PetriNetUnfolder]: 938/2946 cut-off events. [2022-12-12 00:25:47,739 INFO L131 PetriNetUnfolder]: For 1852876/1859796 co-relation queries the response was YES. [2022-12-12 00:25:47,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272275 conditions, 2946 events. 938/2946 cut-off events. For 1852876/1859796 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 21230 event pairs, 6 based on Foata normal form. 18/2882 useless extension candidates. Maximal degree in co-relation 236406. Up to 1035 conditions per place. [2022-12-12 00:25:47,840 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 908 selfloop transitions, 143 changer transitions 57/1188 dead transitions. [2022-12-12 00:25:47,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1430 places, 1188 transitions, 289125 flow [2022-12-12 00:25:47,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:25:47,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:25:47,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3672 transitions. [2022-12-12 00:25:47,842 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5755485893416928 [2022-12-12 00:25:47,842 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1299 predicate places. [2022-12-12 00:25:47,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 1430 places, 1188 transitions, 289125 flow [2022-12-12 00:25:47,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1405 places, 1131 transitions, 273686 flow [2022-12-12 00:25:47,989 INFO L495 AbstractCegarLoop]: Abstraction has has 1405 places, 1131 transitions, 273686 flow [2022-12-12 00:25:47,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:47,989 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:25:47,989 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:25:47,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-12-12 00:25:47,990 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:25:47,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:25:47,997 INFO L85 PathProgramCache]: Analyzing trace with hash -506848066, now seen corresponding path program 106 times [2022-12-12 00:25:47,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:25:47,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453488180] [2022-12-12 00:25:47,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:25:47,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:25:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:25:48,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:25:48,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:25:48,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453488180] [2022-12-12 00:25:48,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453488180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:25:48,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:25:48,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:25:48,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137544695] [2022-12-12 00:25:48,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:25:48,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:25:48,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:25:48,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:25:48,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:25:48,500 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:25:48,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1405 places, 1131 transitions, 273686 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:48,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:25:48,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:25:48,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:25:54,522 INFO L130 PetriNetUnfolder]: 918/2888 cut-off events. [2022-12-12 00:25:54,523 INFO L131 PetriNetUnfolder]: For 1806029/1813380 co-relation queries the response was YES. [2022-12-12 00:25:54,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268289 conditions, 2888 events. 918/2888 cut-off events. For 1806029/1813380 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 20647 event pairs, 7 based on Foata normal form. 22/2828 useless extension candidates. Maximal degree in co-relation 233337. Up to 1004 conditions per place. [2022-12-12 00:25:54,693 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 924 selfloop transitions, 80 changer transitions 62/1146 dead transitions. [2022-12-12 00:25:54,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1446 places, 1146 transitions, 280155 flow [2022-12-12 00:25:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 00:25:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 00:25:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3504 transitions. [2022-12-12 00:25:54,696 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5753694581280788 [2022-12-12 00:25:54,696 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1315 predicate places. [2022-12-12 00:25:54,696 INFO L82 GeneralOperation]: Start removeDead. Operand has 1446 places, 1146 transitions, 280155 flow [2022-12-12 00:25:54,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1379 places, 1084 transitions, 263560 flow [2022-12-12 00:25:54,843 INFO L495 AbstractCegarLoop]: Abstraction has has 1379 places, 1084 transitions, 263560 flow [2022-12-12 00:25:54,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:54,843 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:25:54,843 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:25:54,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-12-12 00:25:54,843 INFO L420 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:25:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:25:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash -882687656, now seen corresponding path program 107 times [2022-12-12 00:25:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:25:54,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139195897] [2022-12-12 00:25:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:25:54,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:25:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:25:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:25:55,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:25:55,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139195897] [2022-12-12 00:25:55,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139195897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:25:55,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:25:55,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:25:55,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703995998] [2022-12-12 00:25:55,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:25:55,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:25:55,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:25:55,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:25:55,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:25:55,266 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:25:55,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1379 places, 1084 transitions, 263560 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:25:55,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:25:55,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:25:55,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:01,077 INFO L130 PetriNetUnfolder]: 920/2898 cut-off events. [2022-12-12 00:26:01,078 INFO L131 PetriNetUnfolder]: For 1850935/1858562 co-relation queries the response was YES. [2022-12-12 00:26:01,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270803 conditions, 2898 events. 920/2898 cut-off events. For 1850935/1858562 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 20753 event pairs, 3 based on Foata normal form. 18/2829 useless extension candidates. Maximal degree in co-relation 235012. Up to 1011 conditions per place. [2022-12-12 00:26:01,178 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 895 selfloop transitions, 124 changer transitions 49/1148 dead transitions. [2022-12-12 00:26:01,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1416 places, 1148 transitions, 283321 flow [2022-12-12 00:26:01,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:26:01,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:26:01,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3204 transitions. [2022-12-12 00:26:01,180 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5814882032667876 [2022-12-12 00:26:01,180 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1285 predicate places. [2022-12-12 00:26:01,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 1416 places, 1148 transitions, 283321 flow [2022-12-12 00:26:01,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1398 places, 1099 transitions, 269907 flow [2022-12-12 00:26:01,392 INFO L495 AbstractCegarLoop]: Abstraction has has 1398 places, 1099 transitions, 269907 flow [2022-12-12 00:26:01,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:01,392 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:01,392 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:01,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-12-12 00:26:01,393 INFO L420 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1428216246, now seen corresponding path program 108 times [2022-12-12 00:26:01,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:01,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148507613] [2022-12-12 00:26:01,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:01,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:01,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:01,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:01,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148507613] [2022-12-12 00:26:01,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148507613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:01,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:01,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:01,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268660403] [2022-12-12 00:26:01,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:01,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:01,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:01,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:01,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:01,863 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:01,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1398 places, 1099 transitions, 269907 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:01,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:01,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:01,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:07,762 INFO L130 PetriNetUnfolder]: 915/2878 cut-off events. [2022-12-12 00:26:07,762 INFO L131 PetriNetUnfolder]: For 1888110/1895222 co-relation queries the response was YES. [2022-12-12 00:26:07,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271496 conditions, 2878 events. 915/2878 cut-off events. For 1888110/1895222 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 20497 event pairs, 8 based on Foata normal form. 18/2813 useless extension candidates. Maximal degree in co-relation 235751. Up to 1003 conditions per place. [2022-12-12 00:26:07,863 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 882 selfloop transitions, 128 changer transitions 49/1139 dead transitions. [2022-12-12 00:26:07,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1435 places, 1139 transitions, 282888 flow [2022-12-12 00:26:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:26:07,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:26:07,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3198 transitions. [2022-12-12 00:26:07,865 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5803992740471869 [2022-12-12 00:26:07,865 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1304 predicate places. [2022-12-12 00:26:07,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 1435 places, 1139 transitions, 282888 flow [2022-12-12 00:26:08,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1417 places, 1090 transitions, 269376 flow [2022-12-12 00:26:08,058 INFO L495 AbstractCegarLoop]: Abstraction has has 1417 places, 1090 transitions, 269376 flow [2022-12-12 00:26:08,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:08,058 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:08,058 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:08,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-12-12 00:26:08,058 INFO L420 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:08,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:08,058 INFO L85 PathProgramCache]: Analyzing trace with hash 185446534, now seen corresponding path program 109 times [2022-12-12 00:26:08,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:08,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519088720] [2022-12-12 00:26:08,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:08,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:08,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:08,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519088720] [2022-12-12 00:26:08,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519088720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:08,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:08,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:08,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953030786] [2022-12-12 00:26:08,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:08,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:08,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:08,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:08,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:08,530 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:08,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1417 places, 1090 transitions, 269376 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:08,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:08,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:08,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:14,832 INFO L130 PetriNetUnfolder]: 911/2834 cut-off events. [2022-12-12 00:26:14,832 INFO L131 PetriNetUnfolder]: For 1864044/1871992 co-relation queries the response was YES. [2022-12-12 00:26:14,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270220 conditions, 2834 events. 911/2834 cut-off events. For 1864044/1871992 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19991 event pairs, 7 based on Foata normal form. 18/2767 useless extension candidates. Maximal degree in co-relation 235381. Up to 982 conditions per place. [2022-12-12 00:26:14,931 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 869 selfloop transitions, 105 changer transitions 53/1107 dead transitions. [2022-12-12 00:26:14,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1451 places, 1107 transitions, 276402 flow [2022-12-12 00:26:14,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-12 00:26:14,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-12 00:26:14,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2954 transitions. [2022-12-12 00:26:14,933 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5820689655172414 [2022-12-12 00:26:14,933 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1320 predicate places. [2022-12-12 00:26:14,933 INFO L82 GeneralOperation]: Start removeDead. Operand has 1451 places, 1107 transitions, 276402 flow [2022-12-12 00:26:15,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1411 places, 1054 transitions, 261803 flow [2022-12-12 00:26:15,075 INFO L495 AbstractCegarLoop]: Abstraction has has 1411 places, 1054 transitions, 261803 flow [2022-12-12 00:26:15,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:15,075 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:15,075 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:15,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-12-12 00:26:15,076 INFO L420 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:15,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:15,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2038156158, now seen corresponding path program 110 times [2022-12-12 00:26:15,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:15,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302339535] [2022-12-12 00:26:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:15,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:15,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:15,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302339535] [2022-12-12 00:26:15,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302339535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:15,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:15,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:15,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129653123] [2022-12-12 00:26:15,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:15,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:15,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:15,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:15,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:15,733 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:15,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1411 places, 1054 transitions, 261803 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:15,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:15,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:15,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:21,089 INFO L130 PetriNetUnfolder]: 900/2817 cut-off events. [2022-12-12 00:26:21,089 INFO L131 PetriNetUnfolder]: For 1902862/1911192 co-relation queries the response was YES. [2022-12-12 00:26:21,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271046 conditions, 2817 events. 900/2817 cut-off events. For 1902862/1911192 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19964 event pairs, 4 based on Foata normal form. 18/2753 useless extension candidates. Maximal degree in co-relation 248941. Up to 980 conditions per place. [2022-12-12 00:26:21,188 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 868 selfloop transitions, 109 changer transitions 49/1106 dead transitions. [2022-12-12 00:26:21,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1447 places, 1106 transitions, 278240 flow [2022-12-12 00:26:21,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:26:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:26:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3124 transitions. [2022-12-12 00:26:21,190 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5822926374650512 [2022-12-12 00:26:21,190 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1316 predicate places. [2022-12-12 00:26:21,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 1447 places, 1106 transitions, 278240 flow [2022-12-12 00:26:21,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1430 places, 1057 transitions, 264532 flow [2022-12-12 00:26:21,340 INFO L495 AbstractCegarLoop]: Abstraction has has 1430 places, 1057 transitions, 264532 flow [2022-12-12 00:26:21,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:21,340 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:21,340 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:21,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-12-12 00:26:21,341 INFO L420 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:21,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:21,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1540892140, now seen corresponding path program 111 times [2022-12-12 00:26:21,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:21,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508104518] [2022-12-12 00:26:21,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:21,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:21,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:21,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508104518] [2022-12-12 00:26:21,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508104518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:21,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:21,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:21,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632805595] [2022-12-12 00:26:21,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:21,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:21,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:21,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:21,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:21,964 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:21,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1430 places, 1057 transitions, 264532 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:21,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:21,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:21,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:28,028 INFO L130 PetriNetUnfolder]: 898/2847 cut-off events. [2022-12-12 00:26:28,028 INFO L131 PetriNetUnfolder]: For 1956849/1965012 co-relation queries the response was YES. [2022-12-12 00:26:28,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272763 conditions, 2847 events. 898/2847 cut-off events. For 1956849/1965012 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 20220 event pairs, 7 based on Foata normal form. 16/2775 useless extension candidates. Maximal degree in co-relation 237139. Up to 979 conditions per place. [2022-12-12 00:26:28,189 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 865 selfloop transitions, 104 changer transitions 55/1104 dead transitions. [2022-12-12 00:26:28,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1470 places, 1104 transitions, 279677 flow [2022-12-12 00:26:28,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-12 00:26:28,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-12 00:26:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 3431 transitions. [2022-12-12 00:26:28,191 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5771236333052986 [2022-12-12 00:26:28,191 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1339 predicate places. [2022-12-12 00:26:28,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 1470 places, 1104 transitions, 279677 flow [2022-12-12 00:26:28,335 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1448 places, 1049 transitions, 264172 flow [2022-12-12 00:26:28,335 INFO L495 AbstractCegarLoop]: Abstraction has has 1448 places, 1049 transitions, 264172 flow [2022-12-12 00:26:28,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:28,336 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:28,336 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:28,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-12-12 00:26:28,336 INFO L420 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1270166668, now seen corresponding path program 112 times [2022-12-12 00:26:28,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:28,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853399459] [2022-12-12 00:26:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:28,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:28,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:28,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:28,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853399459] [2022-12-12 00:26:28,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853399459] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:28,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:28,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:28,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836259559] [2022-12-12 00:26:28,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:28,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:28,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:28,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:28,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:28,904 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:28,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1448 places, 1049 transitions, 264172 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:28,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:28,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:28,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:35,485 INFO L130 PetriNetUnfolder]: 925/2886 cut-off events. [2022-12-12 00:26:35,486 INFO L131 PetriNetUnfolder]: For 1955860/1963228 co-relation queries the response was YES. [2022-12-12 00:26:35,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283186 conditions, 2886 events. 925/2886 cut-off events. For 1955860/1963228 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20539 event pairs, 6 based on Foata normal form. 18/2822 useless extension candidates. Maximal degree in co-relation 260781. Up to 1013 conditions per place. [2022-12-12 00:26:35,616 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 885 selfloop transitions, 131 changer transitions 66/1162 dead transitions. [2022-12-12 00:26:35,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1497 places, 1162 transitions, 297445 flow [2022-12-12 00:26:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 00:26:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 00:26:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 4152 transitions. [2022-12-12 00:26:35,618 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5726896551724138 [2022-12-12 00:26:35,618 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1366 predicate places. [2022-12-12 00:26:35,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 1497 places, 1162 transitions, 297445 flow [2022-12-12 00:26:35,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1465 places, 1096 transitions, 279112 flow [2022-12-12 00:26:35,768 INFO L495 AbstractCegarLoop]: Abstraction has has 1465 places, 1096 transitions, 279112 flow [2022-12-12 00:26:35,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:35,768 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:35,769 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:35,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-12-12 00:26:35,769 INFO L420 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:35,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:35,769 INFO L85 PathProgramCache]: Analyzing trace with hash -115249526, now seen corresponding path program 113 times [2022-12-12 00:26:35,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:35,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563349870] [2022-12-12 00:26:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:35,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:36,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:36,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:36,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563349870] [2022-12-12 00:26:36,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563349870] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:36,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:36,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:36,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268495565] [2022-12-12 00:26:36,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:36,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:36,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:36,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:36,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:36,321 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:36,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1465 places, 1096 transitions, 279112 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:36,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:36,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:36,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:42,721 INFO L130 PetriNetUnfolder]: 914/2871 cut-off events. [2022-12-12 00:26:42,721 INFO L131 PetriNetUnfolder]: For 1963286/1970923 co-relation queries the response was YES. [2022-12-12 00:26:42,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282249 conditions, 2871 events. 914/2871 cut-off events. For 1963286/1970923 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 20375 event pairs, 7 based on Foata normal form. 20/2809 useless extension candidates. Maximal degree in co-relation 246141. Up to 1001 conditions per place. [2022-12-12 00:26:42,828 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 879 selfloop transitions, 129 changer transitions 55/1143 dead transitions. [2022-12-12 00:26:42,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1508 places, 1143 transitions, 294523 flow [2022-12-12 00:26:42,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:26:42,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:26:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3677 transitions. [2022-12-12 00:26:42,831 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.576332288401254 [2022-12-12 00:26:42,831 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1377 predicate places. [2022-12-12 00:26:42,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 1508 places, 1143 transitions, 294523 flow [2022-12-12 00:26:42,990 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1483 places, 1088 transitions, 278798 flow [2022-12-12 00:26:42,991 INFO L495 AbstractCegarLoop]: Abstraction has has 1483 places, 1088 transitions, 278798 flow [2022-12-12 00:26:42,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:42,991 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:42,991 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:42,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-12-12 00:26:42,991 INFO L420 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:42,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:42,991 INFO L85 PathProgramCache]: Analyzing trace with hash -7062006, now seen corresponding path program 114 times [2022-12-12 00:26:42,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:42,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339568202] [2022-12-12 00:26:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:42,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:43,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:43,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:43,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339568202] [2022-12-12 00:26:43,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339568202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:43,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:43,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:43,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799944470] [2022-12-12 00:26:43,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:43,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:43,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:43,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:43,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:43,529 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:43,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1483 places, 1088 transitions, 278798 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:43,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:43,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:43,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:49,455 INFO L130 PetriNetUnfolder]: 920/2867 cut-off events. [2022-12-12 00:26:49,455 INFO L131 PetriNetUnfolder]: For 1999326/2007624 co-relation queries the response was YES. [2022-12-12 00:26:49,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283771 conditions, 2867 events. 920/2867 cut-off events. For 1999326/2007624 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 20312 event pairs, 5 based on Foata normal form. 18/2800 useless extension candidates. Maximal degree in co-relation 247739. Up to 991 conditions per place. [2022-12-12 00:26:49,558 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 889 selfloop transitions, 112 changer transitions 49/1130 dead transitions. [2022-12-12 00:26:49,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1519 places, 1130 transitions, 292724 flow [2022-12-12 00:26:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:26:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:26:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3120 transitions. [2022-12-12 00:26:49,560 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.581547064305685 [2022-12-12 00:26:49,560 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1388 predicate places. [2022-12-12 00:26:49,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 1519 places, 1130 transitions, 292724 flow [2022-12-12 00:26:49,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1498 places, 1081 transitions, 278627 flow [2022-12-12 00:26:49,734 INFO L495 AbstractCegarLoop]: Abstraction has has 1498 places, 1081 transitions, 278627 flow [2022-12-12 00:26:49,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:49,734 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:49,734 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:49,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-12-12 00:26:49,734 INFO L420 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:49,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash 385208100, now seen corresponding path program 115 times [2022-12-12 00:26:49,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:49,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94758312] [2022-12-12 00:26:49,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:49,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:50,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:50,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94758312] [2022-12-12 00:26:50,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94758312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:50,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:50,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:50,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422352367] [2022-12-12 00:26:50,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:50,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:50,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:50,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:50,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:50,216 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:50,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1498 places, 1081 transitions, 278627 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:50,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:50,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:50,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:26:56,238 INFO L130 PetriNetUnfolder]: 897/2824 cut-off events. [2022-12-12 00:26:56,238 INFO L131 PetriNetUnfolder]: For 1988266/1995851 co-relation queries the response was YES. [2022-12-12 00:26:56,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280952 conditions, 2824 events. 897/2824 cut-off events. For 1988266/1995851 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19965 event pairs, 7 based on Foata normal form. 18/2760 useless extension candidates. Maximal degree in co-relation 244996. Up to 970 conditions per place. [2022-12-12 00:26:56,345 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 881 selfloop transitions, 97 changer transitions 50/1108 dead transitions. [2022-12-12 00:26:56,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1535 places, 1108 transitions, 288315 flow [2022-12-12 00:26:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:26:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:26:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3190 transitions. [2022-12-12 00:26:56,349 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2022-12-12 00:26:56,350 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1404 predicate places. [2022-12-12 00:26:56,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 1535 places, 1108 transitions, 288315 flow [2022-12-12 00:26:56,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1507 places, 1058 transitions, 273806 flow [2022-12-12 00:26:56,506 INFO L495 AbstractCegarLoop]: Abstraction has has 1507 places, 1058 transitions, 273806 flow [2022-12-12 00:26:56,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:56,506 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:26:56,506 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:26:56,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-12-12 00:26:56,507 INFO L420 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:26:56,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:26:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash 670329360, now seen corresponding path program 116 times [2022-12-12 00:26:56,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:26:56,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147899706] [2022-12-12 00:26:56,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:26:56,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:26:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:26:57,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:26:57,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:26:57,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147899706] [2022-12-12 00:26:57,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147899706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:26:57,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:26:57,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:26:57,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130473701] [2022-12-12 00:26:57,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:26:57,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:26:57,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:26:57,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:26:57,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:26:57,008 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:26:57,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1507 places, 1058 transitions, 273806 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:26:57,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:26:57,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:26:57,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:03,256 INFO L130 PetriNetUnfolder]: 899/2846 cut-off events. [2022-12-12 00:27:03,257 INFO L131 PetriNetUnfolder]: For 2047923/2055830 co-relation queries the response was YES. [2022-12-12 00:27:03,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283626 conditions, 2846 events. 899/2846 cut-off events. For 2047923/2055830 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 20243 event pairs, 5 based on Foata normal form. 20/2779 useless extension candidates. Maximal degree in co-relation 247433. Up to 973 conditions per place. [2022-12-12 00:27:03,363 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 865 selfloop transitions, 101 changer transitions 66/1112 dead transitions. [2022-12-12 00:27:03,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1555 places, 1112 transitions, 291501 flow [2022-12-12 00:27:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 00:27:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 00:27:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4071 transitions. [2022-12-12 00:27:03,366 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5729767769176636 [2022-12-12 00:27:03,367 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1424 predicate places. [2022-12-12 00:27:03,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 1555 places, 1112 transitions, 291501 flow [2022-12-12 00:27:03,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1524 places, 1046 transitions, 272640 flow [2022-12-12 00:27:03,525 INFO L495 AbstractCegarLoop]: Abstraction has has 1524 places, 1046 transitions, 272640 flow [2022-12-12 00:27:03,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:03,526 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:03,526 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:03,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-12-12 00:27:03,526 INFO L420 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:03,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:03,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1756529454, now seen corresponding path program 117 times [2022-12-12 00:27:03,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:03,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859769990] [2022-12-12 00:27:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:03,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:04,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:04,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:04,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859769990] [2022-12-12 00:27:04,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859769990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:04,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:04,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:04,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758760676] [2022-12-12 00:27:04,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:04,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:04,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:04,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:04,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:04,148 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:04,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1524 places, 1046 transitions, 272640 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:04,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:04,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:04,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:10,060 INFO L130 PetriNetUnfolder]: 873/2760 cut-off events. [2022-12-12 00:27:10,060 INFO L131 PetriNetUnfolder]: For 2008330/2016469 co-relation queries the response was YES. [2022-12-12 00:27:10,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277291 conditions, 2760 events. 873/2760 cut-off events. For 2008330/2016469 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19498 event pairs, 3 based on Foata normal form. 20/2693 useless extension candidates. Maximal degree in co-relation 241765. Up to 938 conditions per place. [2022-12-12 00:27:10,234 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 846 selfloop transitions, 69 changer transitions 64/1059 dead transitions. [2022-12-12 00:27:10,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1566 places, 1059 transitions, 278712 flow [2022-12-12 00:27:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:27:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:27:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3569 transitions. [2022-12-12 00:27:10,237 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5724137931034483 [2022-12-12 00:27:10,237 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1435 predicate places. [2022-12-12 00:27:10,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 1566 places, 1059 transitions, 278712 flow [2022-12-12 00:27:10,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1460 places, 995 transitions, 260111 flow [2022-12-12 00:27:10,379 INFO L495 AbstractCegarLoop]: Abstraction has has 1460 places, 995 transitions, 260111 flow [2022-12-12 00:27:10,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:10,380 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:10,380 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:10,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-12-12 00:27:10,380 INFO L420 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:10,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:10,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1171559470, now seen corresponding path program 118 times [2022-12-12 00:27:10,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:10,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161279582] [2022-12-12 00:27:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:10,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:10,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:10,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161279582] [2022-12-12 00:27:10,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161279582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:10,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:10,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093700571] [2022-12-12 00:27:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:10,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:10,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:10,837 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:10,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1460 places, 995 transitions, 260111 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:10,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:10,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:10,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:16,858 INFO L130 PetriNetUnfolder]: 883/2781 cut-off events. [2022-12-12 00:27:16,859 INFO L131 PetriNetUnfolder]: For 2047340/2055350 co-relation queries the response was YES. [2022-12-12 00:27:16,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281933 conditions, 2781 events. 883/2781 cut-off events. For 2047340/2055350 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19642 event pairs, 4 based on Foata normal form. 20/2713 useless extension candidates. Maximal degree in co-relation 258628. Up to 954 conditions per place. [2022-12-12 00:27:16,961 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 841 selfloop transitions, 102 changer transitions 55/1078 dead transitions. [2022-12-12 00:27:16,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1503 places, 1078 transitions, 286514 flow [2022-12-12 00:27:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 00:27:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 00:27:16,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3671 transitions. [2022-12-12 00:27:16,963 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5753918495297806 [2022-12-12 00:27:16,963 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1372 predicate places. [2022-12-12 00:27:16,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 1503 places, 1078 transitions, 286514 flow [2022-12-12 00:27:17,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1478 places, 1023 transitions, 270239 flow [2022-12-12 00:27:17,158 INFO L495 AbstractCegarLoop]: Abstraction has has 1478 places, 1023 transitions, 270239 flow [2022-12-12 00:27:17,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:17,158 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:17,158 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:17,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-12-12 00:27:17,158 INFO L420 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:17,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:17,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1613277436, now seen corresponding path program 119 times [2022-12-12 00:27:17,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:17,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755503457] [2022-12-12 00:27:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:17,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:17,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:17,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755503457] [2022-12-12 00:27:17,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755503457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:17,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:17,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:17,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883070604] [2022-12-12 00:27:17,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:17,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:17,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:17,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:17,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:17,636 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:17,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1478 places, 1023 transitions, 270239 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:17,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:17,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:17,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:23,397 INFO L130 PetriNetUnfolder]: 889/2790 cut-off events. [2022-12-12 00:27:23,397 INFO L131 PetriNetUnfolder]: For 2109674/2118508 co-relation queries the response was YES. [2022-12-12 00:27:23,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283290 conditions, 2790 events. 889/2790 cut-off events. For 2109674/2118508 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 19595 event pairs, 6 based on Foata normal form. 20/2719 useless extension candidates. Maximal degree in co-relation 258255. Up to 943 conditions per place. [2022-12-12 00:27:23,499 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 835 selfloop transitions, 100 changer transitions 48/1063 dead transitions. [2022-12-12 00:27:23,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1515 places, 1063 transitions, 283948 flow [2022-12-12 00:27:23,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:27:23,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:27:23,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3200 transitions. [2022-12-12 00:27:23,501 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5807622504537205 [2022-12-12 00:27:23,501 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1384 predicate places. [2022-12-12 00:27:23,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 1515 places, 1063 transitions, 283948 flow [2022-12-12 00:27:23,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1497 places, 1015 transitions, 269683 flow [2022-12-12 00:27:23,647 INFO L495 AbstractCegarLoop]: Abstraction has has 1497 places, 1015 transitions, 269683 flow [2022-12-12 00:27:23,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:23,647 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:23,647 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:23,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-12-12 00:27:23,647 INFO L420 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:23,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:23,648 INFO L85 PathProgramCache]: Analyzing trace with hash -599507214, now seen corresponding path program 120 times [2022-12-12 00:27:23,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:23,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007977320] [2022-12-12 00:27:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:23,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:24,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:24,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007977320] [2022-12-12 00:27:24,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007977320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:24,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:24,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:24,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905249612] [2022-12-12 00:27:24,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:24,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:24,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:24,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:24,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:24,147 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:24,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1497 places, 1015 transitions, 269683 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:24,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:24,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:24,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:29,725 INFO L130 PetriNetUnfolder]: 874/2761 cut-off events. [2022-12-12 00:27:29,725 INFO L131 PetriNetUnfolder]: For 2072011/2080898 co-relation queries the response was YES. [2022-12-12 00:27:29,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283535 conditions, 2761 events. 874/2761 cut-off events. For 2072011/2080898 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 19463 event pairs, 9 based on Foata normal form. 20/2698 useless extension candidates. Maximal degree in co-relation 247310. Up to 941 conditions per place. [2022-12-12 00:27:29,887 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 834 selfloop transitions, 96 changer transitions 49/1059 dead transitions. [2022-12-12 00:27:29,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1531 places, 1059 transitions, 284758 flow [2022-12-12 00:27:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-12 00:27:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-12 00:27:29,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2966 transitions. [2022-12-12 00:27:29,889 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5844334975369458 [2022-12-12 00:27:29,889 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1400 predicate places. [2022-12-12 00:27:29,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 1531 places, 1059 transitions, 284758 flow [2022-12-12 00:27:30,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1516 places, 1010 transitions, 270070 flow [2022-12-12 00:27:30,036 INFO L495 AbstractCegarLoop]: Abstraction has has 1516 places, 1010 transitions, 270070 flow [2022-12-12 00:27:30,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:30,036 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:30,037 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:30,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-12-12 00:27:30,037 INFO L420 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:30,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:30,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2973842, now seen corresponding path program 121 times [2022-12-12 00:27:30,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:30,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093403170] [2022-12-12 00:27:30,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:30,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:30,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:30,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:30,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093403170] [2022-12-12 00:27:30,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093403170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:30,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:30,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:30,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622841235] [2022-12-12 00:27:30,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:30,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:30,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:30,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:30,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:30,532 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:30,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1516 places, 1010 transitions, 270070 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:30,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:30,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:30,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:36,122 INFO L130 PetriNetUnfolder]: 865/2753 cut-off events. [2022-12-12 00:27:36,124 INFO L131 PetriNetUnfolder]: For 2142368/2150337 co-relation queries the response was YES. [2022-12-12 00:27:36,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282696 conditions, 2753 events. 865/2753 cut-off events. For 2142368/2150337 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 19443 event pairs, 5 based on Foata normal form. 18/2684 useless extension candidates. Maximal degree in co-relation 246238. Up to 928 conditions per place. [2022-12-12 00:27:36,284 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 825 selfloop transitions, 82 changer transitions 53/1040 dead transitions. [2022-12-12 00:27:36,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1551 places, 1040 transitions, 281050 flow [2022-12-12 00:27:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 00:27:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 00:27:36,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3039 transitions. [2022-12-12 00:27:36,286 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.582183908045977 [2022-12-12 00:27:36,286 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1420 predicate places. [2022-12-12 00:27:36,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 1551 places, 1040 transitions, 281050 flow [2022-12-12 00:27:36,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1518 places, 987 transitions, 265094 flow [2022-12-12 00:27:36,434 INFO L495 AbstractCegarLoop]: Abstraction has has 1518 places, 987 transitions, 265094 flow [2022-12-12 00:27:36,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:36,435 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:36,435 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:36,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-12-12 00:27:36,435 INFO L420 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:36,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:36,435 INFO L85 PathProgramCache]: Analyzing trace with hash 250381410, now seen corresponding path program 122 times [2022-12-12 00:27:36,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:36,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589526403] [2022-12-12 00:27:36,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:36,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:36,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:36,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589526403] [2022-12-12 00:27:36,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589526403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:36,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:36,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298637090] [2022-12-12 00:27:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:36,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:36,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:36,856 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:36,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1518 places, 987 transitions, 265094 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:36,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:36,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:36,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:42,801 INFO L130 PetriNetUnfolder]: 862/2722 cut-off events. [2022-12-12 00:27:42,802 INFO L131 PetriNetUnfolder]: For 2187073/2195931 co-relation queries the response was YES. [2022-12-12 00:27:42,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280523 conditions, 2722 events. 862/2722 cut-off events. For 2187073/2195931 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 19039 event pairs, 8 based on Foata normal form. 18/2649 useless extension candidates. Maximal degree in co-relation 244496. Up to 906 conditions per place. [2022-12-12 00:27:42,902 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 803 selfloop transitions, 68 changer transitions 53/1004 dead transitions. [2022-12-12 00:27:42,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1555 places, 1004 transitions, 272362 flow [2022-12-12 00:27:42,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:27:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:27:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3187 transitions. [2022-12-12 00:27:42,904 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5784029038112523 [2022-12-12 00:27:42,904 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1424 predicate places. [2022-12-12 00:27:42,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 1555 places, 1004 transitions, 272362 flow [2022-12-12 00:27:43,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1512 places, 951 transitions, 256385 flow [2022-12-12 00:27:43,094 INFO L495 AbstractCegarLoop]: Abstraction has has 1512 places, 951 transitions, 256385 flow [2022-12-12 00:27:43,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:43,095 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:43,095 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:43,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-12-12 00:27:43,095 INFO L420 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:43,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:43,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1825886930, now seen corresponding path program 123 times [2022-12-12 00:27:43,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:43,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369549530] [2022-12-12 00:27:43,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:43,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:43,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:43,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369549530] [2022-12-12 00:27:43,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369549530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:43,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:43,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:43,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387712599] [2022-12-12 00:27:43,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:43,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:43,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:43,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:43,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:43,583 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:43,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1512 places, 951 transitions, 256385 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:43,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:43,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:43,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:49,580 INFO L130 PetriNetUnfolder]: 861/2694 cut-off events. [2022-12-12 00:27:49,580 INFO L131 PetriNetUnfolder]: For 2164313/2173497 co-relation queries the response was YES. [2022-12-12 00:27:49,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281608 conditions, 2694 events. 861/2694 cut-off events. For 2164313/2173497 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18720 event pairs, 10 based on Foata normal form. 20/2628 useless extension candidates. Maximal degree in co-relation 255925. Up to 903 conditions per place. [2022-12-12 00:27:49,682 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 787 selfloop transitions, 76 changer transitions 55/998 dead transitions. [2022-12-12 00:27:49,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1554 places, 998 transitions, 272446 flow [2022-12-12 00:27:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 00:27:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 00:27:49,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3578 transitions. [2022-12-12 00:27:49,737 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5738572574178027 [2022-12-12 00:27:49,738 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1423 predicate places. [2022-12-12 00:27:49,738 INFO L82 GeneralOperation]: Start removeDead. Operand has 1554 places, 998 transitions, 272446 flow [2022-12-12 00:27:49,880 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1530 places, 943 transitions, 255621 flow [2022-12-12 00:27:49,880 INFO L495 AbstractCegarLoop]: Abstraction has has 1530 places, 943 transitions, 255621 flow [2022-12-12 00:27:49,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:49,880 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:49,880 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:49,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-12-12 00:27:49,881 INFO L420 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:49,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:49,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2033641602, now seen corresponding path program 124 times [2022-12-12 00:27:49,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:49,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169863698] [2022-12-12 00:27:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:49,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:50,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:50,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169863698] [2022-12-12 00:27:50,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169863698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:50,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:50,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:50,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096772980] [2022-12-12 00:27:50,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:50,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:50,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:50,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:50,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:50,330 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:50,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1530 places, 943 transitions, 255621 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:50,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:50,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:50,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:27:56,390 INFO L130 PetriNetUnfolder]: 866/2691 cut-off events. [2022-12-12 00:27:56,390 INFO L131 PetriNetUnfolder]: For 2150857/2161019 co-relation queries the response was YES. [2022-12-12 00:27:56,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285405 conditions, 2691 events. 866/2691 cut-off events. For 2150857/2161019 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18684 event pairs, 7 based on Foata normal form. 22/2628 useless extension candidates. Maximal degree in co-relation 248262. Up to 912 conditions per place. [2022-12-12 00:27:56,491 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 794 selfloop transitions, 84 changer transitions 49/1007 dead transitions. [2022-12-12 00:27:56,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1567 places, 1007 transitions, 277276 flow [2022-12-12 00:27:56,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:27:56,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:27:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3196 transitions. [2022-12-12 00:27:56,493 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5800362976406533 [2022-12-12 00:27:56,493 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1436 predicate places. [2022-12-12 00:27:56,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 1567 places, 1007 transitions, 277276 flow [2022-12-12 00:27:56,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1549 places, 958 transitions, 262196 flow [2022-12-12 00:27:56,631 INFO L495 AbstractCegarLoop]: Abstraction has has 1549 places, 958 transitions, 262196 flow [2022-12-12 00:27:56,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:56,632 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:27:56,632 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:27:56,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-12-12 00:27:56,632 INFO L420 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:27:56,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:27:56,632 INFO L85 PathProgramCache]: Analyzing trace with hash 477196424, now seen corresponding path program 125 times [2022-12-12 00:27:56,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:27:56,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343619866] [2022-12-12 00:27:56,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:27:56,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:27:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:27:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:27:57,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:27:57,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343619866] [2022-12-12 00:27:57,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343619866] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:27:57,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:27:57,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:27:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430086942] [2022-12-12 00:27:57,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:27:57,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:27:57,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:27:57,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:27:57,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:27:57,138 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:27:57,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1549 places, 958 transitions, 262196 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:27:57,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:27:57,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:27:57,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:28:02,630 INFO L130 PetriNetUnfolder]: 848/2676 cut-off events. [2022-12-12 00:28:02,630 INFO L131 PetriNetUnfolder]: For 2161206/2169687 co-relation queries the response was YES. [2022-12-12 00:28:02,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284254 conditions, 2676 events. 848/2676 cut-off events. For 2161206/2169687 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18670 event pairs, 5 based on Foata normal form. 20/2615 useless extension candidates. Maximal degree in co-relation 247546. Up to 903 conditions per place. [2022-12-12 00:28:02,733 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 791 selfloop transitions, 80 changer transitions 49/1000 dead transitions. [2022-12-12 00:28:02,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1585 places, 1000 transitions, 276786 flow [2022-12-12 00:28:02,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:28:02,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:28:02,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3115 transitions. [2022-12-12 00:28:02,735 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5806150978564771 [2022-12-12 00:28:02,735 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1454 predicate places. [2022-12-12 00:28:02,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 1585 places, 1000 transitions, 276786 flow [2022-12-12 00:28:02,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1564 places, 951 transitions, 261611 flow [2022-12-12 00:28:02,941 INFO L495 AbstractCegarLoop]: Abstraction has has 1564 places, 951 transitions, 261611 flow [2022-12-12 00:28:02,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:02,942 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:28:02,942 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:28:02,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-12-12 00:28:02,942 INFO L420 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:28:02,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:28:02,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1088785338, now seen corresponding path program 126 times [2022-12-12 00:28:02,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:28:02,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99078099] [2022-12-12 00:28:02,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:28:02,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:28:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:28:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:28:03,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:28:03,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99078099] [2022-12-12 00:28:03,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99078099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:28:03,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:28:03,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:28:03,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236629818] [2022-12-12 00:28:03,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:28:03,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:28:03,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:28:03,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:28:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:28:03,393 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:28:03,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1564 places, 951 transitions, 261611 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:03,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:28:03,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:28:03,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:28:08,779 INFO L130 PetriNetUnfolder]: 844/2691 cut-off events. [2022-12-12 00:28:08,779 INFO L131 PetriNetUnfolder]: For 2248953/2257684 co-relation queries the response was YES. [2022-12-12 00:28:08,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284807 conditions, 2691 events. 844/2691 cut-off events. For 2248953/2257684 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 18846 event pairs, 5 based on Foata normal form. 22/2626 useless extension candidates. Maximal degree in co-relation 247533. Up to 894 conditions per place. [2022-12-12 00:28:08,938 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 783 selfloop transitions, 69 changer transitions 58/990 dead transitions. [2022-12-12 00:28:08,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1604 places, 990 transitions, 275403 flow [2022-12-12 00:28:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-12 00:28:08,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-12 00:28:08,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 3420 transitions. [2022-12-12 00:28:08,940 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.575273338940286 [2022-12-12 00:28:08,940 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1473 predicate places. [2022-12-12 00:28:08,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 1604 places, 990 transitions, 275403 flow [2022-12-12 00:28:09,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1576 places, 932 transitions, 257234 flow [2022-12-12 00:28:09,080 INFO L495 AbstractCegarLoop]: Abstraction has has 1576 places, 932 transitions, 257234 flow [2022-12-12 00:28:09,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:09,080 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:28:09,080 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:28:09,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-12-12 00:28:09,081 INFO L420 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:28:09,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:28:09,081 INFO L85 PathProgramCache]: Analyzing trace with hash 63560098, now seen corresponding path program 127 times [2022-12-12 00:28:09,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:28:09,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277318340] [2022-12-12 00:28:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:28:09,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:28:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:28:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:28:09,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:28:09,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277318340] [2022-12-12 00:28:09,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277318340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:28:09,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:28:09,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:28:09,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253980833] [2022-12-12 00:28:09,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:28:09,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:28:09,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:28:09,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:28:09,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:28:09,558 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:28:09,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1576 places, 932 transitions, 257234 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:09,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:28:09,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:28:09,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:28:14,924 INFO L130 PetriNetUnfolder]: 835/2633 cut-off events. [2022-12-12 00:28:14,925 INFO L131 PetriNetUnfolder]: For 2180915/2189920 co-relation queries the response was YES. [2022-12-12 00:28:14,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283485 conditions, 2633 events. 835/2633 cut-off events. For 2180915/2189920 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18314 event pairs, 7 based on Foata normal form. 20/2571 useless extension candidates. Maximal degree in co-relation 246670. Up to 878 conditions per place. [2022-12-12 00:28:15,032 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 774 selfloop transitions, 70 changer transitions 48/972 dead transitions. [2022-12-12 00:28:15,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1613 places, 972 transitions, 271401 flow [2022-12-12 00:28:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 00:28:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 00:28:15,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3182 transitions. [2022-12-12 00:28:15,034 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5774954627949184 [2022-12-12 00:28:15,034 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1482 predicate places. [2022-12-12 00:28:15,034 INFO L82 GeneralOperation]: Start removeDead. Operand has 1613 places, 972 transitions, 271401 flow [2022-12-12 00:28:15,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1595 places, 924 transitions, 256368 flow [2022-12-12 00:28:15,187 INFO L495 AbstractCegarLoop]: Abstraction has has 1595 places, 924 transitions, 256368 flow [2022-12-12 00:28:15,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:15,187 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:28:15,187 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:28:15,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-12-12 00:28:15,187 INFO L420 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:28:15,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:28:15,188 INFO L85 PathProgramCache]: Analyzing trace with hash 69779262, now seen corresponding path program 128 times [2022-12-12 00:28:15,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:28:15,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692662060] [2022-12-12 00:28:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:28:15,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:28:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:28:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:28:15,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:28:15,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692662060] [2022-12-12 00:28:15,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692662060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:28:15,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:28:15,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:28:15,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432972740] [2022-12-12 00:28:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:28:15,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:28:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:28:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:28:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:28:15,666 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:28:15,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1595 places, 924 transitions, 256368 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:15,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:28:15,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:28:15,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:28:20,720 INFO L130 PetriNetUnfolder]: 833/2594 cut-off events. [2022-12-12 00:28:20,720 INFO L131 PetriNetUnfolder]: For 2204516/2214132 co-relation queries the response was YES. [2022-12-12 00:28:20,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278937 conditions, 2594 events. 833/2594 cut-off events. For 2204516/2214132 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 17870 event pairs, 5 based on Foata normal form. 20/2523 useless extension candidates. Maximal degree in co-relation 245246. Up to 842 conditions per place. [2022-12-12 00:28:20,820 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 742 selfloop transitions, 40 changer transitions 61/923 dead transitions. [2022-12-12 00:28:20,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1631 places, 923 transitions, 257716 flow [2022-12-12 00:28:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-12 00:28:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-12 00:28:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3068 transitions. [2022-12-12 00:28:20,822 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5718546132339236 [2022-12-12 00:28:20,822 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1500 predicate places. [2022-12-12 00:28:20,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 1631 places, 923 transitions, 257716 flow [2022-12-12 00:28:21,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1340 places, 862 transitions, 238924 flow [2022-12-12 00:28:21,004 INFO L495 AbstractCegarLoop]: Abstraction has has 1340 places, 862 transitions, 238924 flow [2022-12-12 00:28:21,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:21,004 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:28:21,004 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:28:21,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-12-12 00:28:21,005 INFO L420 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:28:21,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:28:21,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1524565428, now seen corresponding path program 129 times [2022-12-12 00:28:21,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:28:21,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620704230] [2022-12-12 00:28:21,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:28:21,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:28:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:28:21,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:28:21,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:28:21,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620704230] [2022-12-12 00:28:21,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620704230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:28:21,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:28:21,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:28:21,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088835562] [2022-12-12 00:28:21,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:28:21,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:28:21,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:28:21,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:28:21,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:28:21,513 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:28:21,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1340 places, 862 transitions, 238924 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:21,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:28:21,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:28:21,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:28:28,043 INFO L130 PetriNetUnfolder]: 828/2596 cut-off events. [2022-12-12 00:28:28,044 INFO L131 PetriNetUnfolder]: For 2229964/2238949 co-relation queries the response was YES. [2022-12-12 00:28:28,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280844 conditions, 2596 events. 828/2596 cut-off events. For 2229964/2238949 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 17953 event pairs, 5 based on Foata normal form. 16/2524 useless extension candidates. Maximal degree in co-relation 247289. Up to 848 conditions per place. [2022-12-12 00:28:28,141 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 701 selfloop transitions, 153 changer transitions 88/1022 dead transitions. [2022-12-12 00:28:28,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1395 places, 1022 transitions, 287502 flow [2022-12-12 00:28:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-12 00:28:28,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2022-12-12 00:28:28,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 4593 transitions. [2022-12-12 00:28:28,144 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.56564039408867 [2022-12-12 00:28:28,144 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1264 predicate places. [2022-12-12 00:28:28,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 1395 places, 1022 transitions, 287502 flow [2022-12-12 00:28:28,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1355 places, 934 transitions, 260981 flow [2022-12-12 00:28:28,337 INFO L495 AbstractCegarLoop]: Abstraction has has 1355 places, 934 transitions, 260981 flow [2022-12-12 00:28:28,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:28,338 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:28:28,338 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:28:28,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-12-12 00:28:28,338 INFO L420 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:28:28,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:28:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash 986327726, now seen corresponding path program 130 times [2022-12-12 00:28:28,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:28:28,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292781477] [2022-12-12 00:28:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:28:28,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:28:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:28:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:28:28,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:28:28,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292781477] [2022-12-12 00:28:28,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292781477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:28:28,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:28:28,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:28:28,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836751109] [2022-12-12 00:28:28,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:28:28,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:28:28,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:28:28,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:28:28,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:28:28,849 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:28:28,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1355 places, 934 transitions, 260981 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:28,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:28:28,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:28:28,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:28:35,513 INFO L130 PetriNetUnfolder]: 848/2690 cut-off events. [2022-12-12 00:28:35,514 INFO L131 PetriNetUnfolder]: For 2366261/2375314 co-relation queries the response was YES. [2022-12-12 00:28:35,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293683 conditions, 2690 events. 848/2690 cut-off events. For 2366261/2375314 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 18673 event pairs, 5 based on Foata normal form. 16/2618 useless extension candidates. Maximal degree in co-relation 256189. Up to 900 conditions per place. [2022-12-12 00:28:35,677 INFO L137 encePairwiseOnDemand]: 114/145 looper letters, 775 selfloop transitions, 161 changer transitions 73/1089 dead transitions. [2022-12-12 00:28:35,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1407 places, 1089 transitions, 311210 flow [2022-12-12 00:28:35,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 00:28:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 00:28:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4372 transitions. [2022-12-12 00:28:35,680 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.568900455432661 [2022-12-12 00:28:35,680 INFO L295 CegarLoopForPetriNet]: 131 programPoint places, 1276 predicate places. [2022-12-12 00:28:35,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 1407 places, 1089 transitions, 311210 flow [2022-12-12 00:28:35,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1371 places, 1016 transitions, 288555 flow [2022-12-12 00:28:35,836 INFO L495 AbstractCegarLoop]: Abstraction has has 1371 places, 1016 transitions, 288555 flow [2022-12-12 00:28:35,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:35,836 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:28:35,836 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:28:35,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-12-12 00:28:35,837 INFO L420 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 00:28:35,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:28:35,837 INFO L85 PathProgramCache]: Analyzing trace with hash -826912218, now seen corresponding path program 131 times [2022-12-12 00:28:35,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:28:35,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398743879] [2022-12-12 00:28:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:28:35,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:28:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:28:36,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:28:36,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:28:36,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398743879] [2022-12-12 00:28:36,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398743879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:28:36,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:28:36,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-12 00:28:36,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800193104] [2022-12-12 00:28:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:28:36,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-12 00:28:36,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:28:36,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-12 00:28:36,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-12-12 00:28:36,312 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-12 00:28:36,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1371 places, 1016 transitions, 288555 flow. Second operand has 26 states, 26 states have (on average 78.07692307692308) internal successors, (2030), 26 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:28:36,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:28:36,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-12 00:28:36,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-12 00:28:38,677 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 [2022-12-12 00:28:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 00:28:38,683 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 00:28:38,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-12-12 00:28:38,683 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 76/145 universal loopers) in iteration 172,while PetriNetUnfolder was constructing finite prefix that currently has 119509 conditions, 1161 events (378/1160 cut-off events. For 1227379/1236867 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7734 event pairs, 6 based on Foata normal form. 17/1185 useless extension candidates. Maximal degree in co-relation 117242. Up to 300 conditions per place.). [2022-12-12 00:28:38,684 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 00:28:38,684 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-12 00:28:38,685 INFO L445 BasicCegarLoop]: Path program histogram: [131, 15, 15, 11] [2022-12-12 00:28:38,687 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 00:28:38,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 00:28:38,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:28:38 BasicIcfg [2022-12-12 00:28:38,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 00:28:38,690 INFO L158 Benchmark]: Toolchain (without parser) took 805031.74ms. Allocated memory was 186.6MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 162.8MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-12-12 00:28:38,691 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 186.6MB. Free memory was 163.2MB in the beginning and 163.0MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 00:28:38,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.75ms. Allocated memory is still 186.6MB. Free memory was 162.8MB in the beginning and 152.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-12 00:28:38,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.41ms. Allocated memory is still 186.6MB. Free memory was 151.6MB in the beginning and 150.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 00:28:38,691 INFO L158 Benchmark]: Boogie Preprocessor took 33.08ms. Allocated memory is still 186.6MB. Free memory was 150.0MB in the beginning and 148.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 00:28:38,691 INFO L158 Benchmark]: RCFGBuilder took 676.38ms. Allocated memory is still 186.6MB. Free memory was 148.5MB in the beginning and 132.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-12 00:28:38,691 INFO L158 Benchmark]: TraceAbstraction took 804050.28ms. Allocated memory was 186.6MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 131.2MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-12-12 00:28:38,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 186.6MB. Free memory was 163.2MB in the beginning and 163.0MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 230.75ms. Allocated memory is still 186.6MB. Free memory was 162.8MB in the beginning and 152.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.41ms. Allocated memory is still 186.6MB. Free memory was 151.6MB in the beginning and 150.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.08ms. Allocated memory is still 186.6MB. Free memory was 150.0MB in the beginning and 148.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 676.38ms. Allocated memory is still 186.6MB. Free memory was 148.5MB in the beginning and 132.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 804050.28ms. Allocated memory was 186.6MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 131.2MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 76/145 universal loopers) in iteration 172,while PetriNetUnfolder was constructing finite prefix that currently has 119509 conditions, 1161 events (378/1160 cut-off events. For 1227379/1236867 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7734 event pairs, 6 based on Foata normal form. 17/1185 useless extension candidates. Maximal degree in co-relation 117242. Up to 300 conditions per place.). - TimeoutResultAtElement [Line: 65]: 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 (26states, 76/145 universal loopers) in iteration 172,while PetriNetUnfolder was constructing finite prefix that currently has 119509 conditions, 1161 events (378/1160 cut-off events. For 1227379/1236867 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7734 event pairs, 6 based on Foata normal form. 17/1185 useless extension candidates. Maximal degree in co-relation 117242. Up to 300 conditions per place.). - TimeoutResultAtElement [Line: 64]: 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 (26states, 76/145 universal loopers) in iteration 172,while PetriNetUnfolder was constructing finite prefix that currently has 119509 conditions, 1161 events (378/1160 cut-off events. For 1227379/1236867 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7734 event pairs, 6 based on Foata normal form. 17/1185 useless extension candidates. Maximal degree in co-relation 117242. Up to 300 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 199 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 15.7s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 803.9s, OverallIterations: 172, TraceHistogramMax: 1, PathProgramHistogramMax: 131, EmptinessCheckTime: 0.0s, AutomataDifference: 711.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87404 SdHoareTripleChecker+Valid, 81.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87404 mSDsluCounter, 313699 SdHoareTripleChecker+Invalid, 68.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 292649 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207179 IncrementalHoareTripleChecker+Invalid, 207286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 21050 mSDtfsCounter, 207179 mSolverCounterSat, 1.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9443 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 8927 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65024 ImplicationChecksByTransitivity, 290.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288555occurred in iteration=171, InterpolantAutomatonStates: 6017, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.7s AutomataMinimizationTime, 171 MinimizatonAttempts, 1412557 StatesRemovedByMinimization, 171 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 73.7s InterpolantComputationTime, 18020 NumberOfCodeBlocks, 18020 NumberOfCodeBlocksAsserted, 172 NumberOfCheckSat, 17848 ConstructedInterpolants, 0 QuantifiedInterpolants, 141162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 172 InterpolantComputations, 172 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