/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 17:39:14,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:39:14,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:39:14,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:39:14,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:39:14,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:39:14,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:39:14,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:39:14,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:39:14,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:39:14,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:39:14,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:39:14,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:39:14,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:39:14,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:39:14,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:39:14,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:39:14,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:39:14,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:39:14,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:39:14,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:39:14,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:39:14,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:39:14,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:39:14,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:39:14,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:39:14,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:39:14,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:39:14,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:39:14,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:39:14,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:39:14,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:39:14,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:39:14,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:39:14,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:39:14,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:39:14,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:39:14,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:39:14,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:39:14,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:39:14,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:39:14,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 17:39:14,935 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:39:14,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:39:14,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:39:14,936 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:39:14,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:39:14,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:39:14,937 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:39:14,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:39:14,938 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:39:14,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:39:14,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:39:14,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:39:14,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:39:14,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:39:14,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:39:14,939 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:39:14,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:39:14,939 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:39:14,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:39:14,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:39:14,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:39:14,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:39:14,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:39:14,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:39:14,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:39:14,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:39:14,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:39:14,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:39:14,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:39:14,941 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:39:14,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:39:14,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:39:15,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:39:15,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:39:15,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:39:15,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:39:15,252 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:39:15,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2022-12-06 17:39:16,340 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:39:16,551 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:39:16,552 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2022-12-06 17:39:16,557 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56c60e842/b516a5da3ffe4ef0b66ea3772944b068/FLAG9a0f434bf [2022-12-06 17:39:16,568 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56c60e842/b516a5da3ffe4ef0b66ea3772944b068 [2022-12-06 17:39:16,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:39:16,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:39:16,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:39:16,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:39:16,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:39:16,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb44ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16, skipping insertion in model container [2022-12-06 17:39:16,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:39:16,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:39:16,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-12-06 17:39:16,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:39:16,783 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:39:16,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,818 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,818 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,818 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:16,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:16,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-12-06 17:39:16,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:39:16,845 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:39:16,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16 WrapperNode [2022-12-06 17:39:16,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:39:16,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:39:16,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:39:16,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:39:16,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,894 INFO L138 Inliner]: procedures = 23, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 198 [2022-12-06 17:39:16,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:39:16,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:39:16,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:39:16,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:39:16,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,924 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:39:16,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:39:16,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:39:16,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:39:16,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (1/1) ... [2022-12-06 17:39:16,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:39:16,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:39:16,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 17:39:16,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 17:39:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:39:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:39:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:39:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:39:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:39:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 17:39:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 17:39:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 17:39:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 17:39:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:39:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:39:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:39:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 17:39:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 17:39:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:39:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:39:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:39:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:39:17,016 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 17:39:17,131 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:39:17,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:39:17,434 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:39:17,513 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:39:17,513 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 17:39:17,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:39:17 BoogieIcfgContainer [2022-12-06 17:39:17,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:39:17,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:39:17,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:39:17,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:39:17,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:39:16" (1/3) ... [2022-12-06 17:39:17,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c3ac0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:39:17, skipping insertion in model container [2022-12-06 17:39:17,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:16" (2/3) ... [2022-12-06 17:39:17,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c3ac0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:39:17, skipping insertion in model container [2022-12-06 17:39:17,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:39:17" (3/3) ... [2022-12-06 17:39:17,522 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2022-12-06 17:39:17,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:39:17,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:39:17,537 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:39:17,631 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 17:39:17,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 135 transitions, 302 flow [2022-12-06 17:39:17,760 INFO L130 PetriNetUnfolder]: 2/131 cut-off events. [2022-12-06 17:39:17,760 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 17:39:17,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 2/131 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-12-06 17:39:17,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 135 transitions, 302 flow [2022-12-06 17:39:17,772 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 119 transitions, 262 flow [2022-12-06 17:39:17,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:39:17,794 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;@d0642b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:39:17,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 17:39:17,876 INFO L130 PetriNetUnfolder]: 2/118 cut-off events. [2022-12-06 17:39:17,876 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 17:39:17,877 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:17,899 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:17,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:17,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:17,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1696827831, now seen corresponding path program 1 times [2022-12-06 17:39:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:17,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588993666] [2022-12-06 17:39:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:17,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:19,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:19,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588993666] [2022-12-06 17:39:19,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588993666] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:19,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:19,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:39:19,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996617491] [2022-12-06 17:39:19,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:19,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:39:19,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:19,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:39:19,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:39:19,476 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 135 [2022-12-06 17:39:19,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 119 transitions, 262 flow. Second operand has 11 states, 11 states have (on average 96.36363636363636) internal successors, (1060), 11 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:19,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:19,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 135 [2022-12-06 17:39:19,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:20,596 INFO L130 PetriNetUnfolder]: 3366/6126 cut-off events. [2022-12-06 17:39:20,596 INFO L131 PetriNetUnfolder]: For 1096/1096 co-relation queries the response was YES. [2022-12-06 17:39:20,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11852 conditions, 6126 events. 3366/6126 cut-off events. For 1096/1096 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 41888 event pairs, 1773 based on Foata normal form. 3/5970 useless extension candidates. Maximal degree in co-relation 9352. Up to 2036 conditions per place. [2022-12-06 17:39:20,639 INFO L137 encePairwiseOnDemand]: 118/135 looper letters, 67 selfloop transitions, 13 changer transitions 26/184 dead transitions. [2022-12-06 17:39:20,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 184 transitions, 643 flow [2022-12-06 17:39:20,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:39:20,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:39:20,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1226 transitions. [2022-12-06 17:39:20,656 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7567901234567901 [2022-12-06 17:39:20,659 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 11 predicate places. [2022-12-06 17:39:20,659 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 184 transitions, 643 flow [2022-12-06 17:39:20,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.36363636363636) internal successors, (1060), 11 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:20,660 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:20,660 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:20,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:39:20,661 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:20,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:20,662 INFO L85 PathProgramCache]: Analyzing trace with hash -894314433, now seen corresponding path program 2 times [2022-12-06 17:39:20,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:20,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540214767] [2022-12-06 17:39:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:20,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:21,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:21,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540214767] [2022-12-06 17:39:21,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540214767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:21,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:21,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:39:21,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940198710] [2022-12-06 17:39:21,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:21,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:39:21,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:21,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:39:21,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:39:21,425 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 135 [2022-12-06 17:39:21,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 184 transitions, 643 flow. Second operand has 10 states, 10 states have (on average 96.7) internal successors, (967), 10 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:21,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:21,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 135 [2022-12-06 17:39:21,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:22,484 INFO L130 PetriNetUnfolder]: 4033/7961 cut-off events. [2022-12-06 17:39:22,484 INFO L131 PetriNetUnfolder]: For 2615/6582 co-relation queries the response was YES. [2022-12-06 17:39:22,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20906 conditions, 7961 events. 4033/7961 cut-off events. For 2615/6582 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 63458 event pairs, 934 based on Foata normal form. 11/7800 useless extension candidates. Maximal degree in co-relation 20183. Up to 4082 conditions per place. [2022-12-06 17:39:22,530 INFO L137 encePairwiseOnDemand]: 121/135 looper letters, 80 selfloop transitions, 11 changer transitions 64/233 dead transitions. [2022-12-06 17:39:22,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 233 transitions, 1185 flow [2022-12-06 17:39:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:39:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:39:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1208 transitions. [2022-12-06 17:39:22,533 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.745679012345679 [2022-12-06 17:39:22,534 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 22 predicate places. [2022-12-06 17:39:22,534 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 233 transitions, 1185 flow [2022-12-06 17:39:22,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.7) internal successors, (967), 10 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:22,535 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:22,535 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:22,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:39:22,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:22,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:22,536 INFO L85 PathProgramCache]: Analyzing trace with hash 259501001, now seen corresponding path program 3 times [2022-12-06 17:39:22,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:22,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945951424] [2022-12-06 17:39:22,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:22,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:22,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:22,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945951424] [2022-12-06 17:39:22,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945951424] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:22,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:22,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:39:22,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833901554] [2022-12-06 17:39:22,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:39:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:39:22,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:39:22,783 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:22,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 233 transitions, 1185 flow. Second operand has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:22,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:22,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:22,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:24,402 INFO L130 PetriNetUnfolder]: 7271/13921 cut-off events. [2022-12-06 17:39:24,402 INFO L131 PetriNetUnfolder]: For 12380/25252 co-relation queries the response was YES. [2022-12-06 17:39:24,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46890 conditions, 13921 events. 7271/13921 cut-off events. For 12380/25252 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 121172 event pairs, 1276 based on Foata normal form. 290/13803 useless extension candidates. Maximal degree in co-relation 32682. Up to 7643 conditions per place. [2022-12-06 17:39:24,477 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 141 selfloop transitions, 49 changer transitions 176/460 dead transitions. [2022-12-06 17:39:24,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 460 transitions, 3434 flow [2022-12-06 17:39:24,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 17:39:24,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 17:39:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 857 transitions. [2022-12-06 17:39:24,480 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7935185185185185 [2022-12-06 17:39:24,481 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 29 predicate places. [2022-12-06 17:39:24,481 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 460 transitions, 3434 flow [2022-12-06 17:39:24,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:24,482 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:24,482 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:24,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 17:39:24,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:24,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:24,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1862017795, now seen corresponding path program 4 times [2022-12-06 17:39:24,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:24,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417536533] [2022-12-06 17:39:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:24,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:24,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:24,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417536533] [2022-12-06 17:39:24,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417536533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:24,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:24,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:39:24,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600771219] [2022-12-06 17:39:24,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:24,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:39:24,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:24,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:39:24,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:39:24,717 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:24,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 460 transitions, 3434 flow. Second operand has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:24,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:24,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:24,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:26,439 INFO L130 PetriNetUnfolder]: 6764/12956 cut-off events. [2022-12-06 17:39:26,439 INFO L131 PetriNetUnfolder]: For 20973/41324 co-relation queries the response was YES. [2022-12-06 17:39:26,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52787 conditions, 12956 events. 6764/12956 cut-off events. For 20973/41324 co-relation queries the response was YES. Maximal size of possible extension queue 915. Compared 114919 event pairs, 945 based on Foata normal form. 506/13276 useless extension candidates. Maximal degree in co-relation 51367. Up to 7155 conditions per place. [2022-12-06 17:39:26,526 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 176 selfloop transitions, 65 changer transitions 213/548 dead transitions. [2022-12-06 17:39:26,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 548 transitions, 5081 flow [2022-12-06 17:39:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 17:39:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 17:39:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 857 transitions. [2022-12-06 17:39:26,529 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7935185185185185 [2022-12-06 17:39:26,531 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 36 predicate places. [2022-12-06 17:39:26,531 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 548 transitions, 5081 flow [2022-12-06 17:39:26,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:26,532 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:26,532 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:26,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 17:39:26,533 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:26,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:26,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2144991121, now seen corresponding path program 5 times [2022-12-06 17:39:26,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:26,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52990371] [2022-12-06 17:39:26,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:26,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:26,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:26,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52990371] [2022-12-06 17:39:26,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52990371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:26,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:26,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 17:39:26,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979035397] [2022-12-06 17:39:26,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:26,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 17:39:26,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:26,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 17:39:26,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-06 17:39:26,767 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:26,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 548 transitions, 5081 flow. Second operand has 8 states, 8 states have (on average 100.25) internal successors, (802), 8 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:26,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:26,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:26,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:28,722 INFO L130 PetriNetUnfolder]: 8036/15729 cut-off events. [2022-12-06 17:39:28,722 INFO L131 PetriNetUnfolder]: For 43028/63050 co-relation queries the response was YES. [2022-12-06 17:39:28,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74286 conditions, 15729 events. 8036/15729 cut-off events. For 43028/63050 co-relation queries the response was YES. Maximal size of possible extension queue 1223. Compared 147292 event pairs, 1128 based on Foata normal form. 427/15957 useless extension candidates. Maximal degree in co-relation 46723. Up to 8733 conditions per place. [2022-12-06 17:39:28,825 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 251 selfloop transitions, 134 changer transitions 426/905 dead transitions. [2022-12-06 17:39:28,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 905 transitions, 10482 flow [2022-12-06 17:39:28,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:39:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:39:28,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 967 transitions. [2022-12-06 17:39:28,828 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7958847736625514 [2022-12-06 17:39:28,830 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 44 predicate places. [2022-12-06 17:39:28,830 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 905 transitions, 10482 flow [2022-12-06 17:39:28,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 100.25) internal successors, (802), 8 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:28,831 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:28,831 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:28,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 17:39:28,831 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1886203783, now seen corresponding path program 6 times [2022-12-06 17:39:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:28,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511308415] [2022-12-06 17:39:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:29,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511308415] [2022-12-06 17:39:29,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511308415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:29,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:29,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:39:29,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869997259] [2022-12-06 17:39:29,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:29,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:39:29,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:29,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:39:29,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:39:29,079 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:29,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 905 transitions, 10482 flow. Second operand has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:29,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:29,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:29,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:31,149 INFO L130 PetriNetUnfolder]: 7644/15314 cut-off events. [2022-12-06 17:39:31,150 INFO L131 PetriNetUnfolder]: For 63198/97001 co-relation queries the response was YES. [2022-12-06 17:39:31,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81806 conditions, 15314 events. 7644/15314 cut-off events. For 63198/97001 co-relation queries the response was YES. Maximal size of possible extension queue 1238. Compared 146173 event pairs, 1229 based on Foata normal form. 633/15705 useless extension candidates. Maximal degree in co-relation 56059. Up to 8385 conditions per place. [2022-12-06 17:39:31,235 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 314 selfloop transitions, 107 changer transitions 486/1001 dead transitions. [2022-12-06 17:39:31,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 1001 transitions, 13453 flow [2022-12-06 17:39:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 17:39:31,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 17:39:31,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 856 transitions. [2022-12-06 17:39:31,238 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7925925925925926 [2022-12-06 17:39:31,238 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 51 predicate places. [2022-12-06 17:39:31,238 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 1001 transitions, 13453 flow [2022-12-06 17:39:31,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:31,239 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:31,239 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:31,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 17:39:31,240 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:31,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:31,240 INFO L85 PathProgramCache]: Analyzing trace with hash -364065569, now seen corresponding path program 7 times [2022-12-06 17:39:31,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:31,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177101835] [2022-12-06 17:39:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:31,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:31,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:31,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177101835] [2022-12-06 17:39:31,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177101835] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:31,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:31,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:39:31,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998125138] [2022-12-06 17:39:31,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:31,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:39:31,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:31,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:39:31,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:39:31,462 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:31,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 1001 transitions, 13453 flow. Second operand has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:31,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:31,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:31,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:33,115 INFO L130 PetriNetUnfolder]: 5247/11241 cut-off events. [2022-12-06 17:39:33,115 INFO L131 PetriNetUnfolder]: For 71424/107356 co-relation queries the response was YES. [2022-12-06 17:39:33,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65928 conditions, 11241 events. 5247/11241 cut-off events. For 71424/107356 co-relation queries the response was YES. Maximal size of possible extension queue 880. Compared 107116 event pairs, 673 based on Foata normal form. 772/11791 useless extension candidates. Maximal degree in co-relation 38923. Up to 5695 conditions per place. [2022-12-06 17:39:33,174 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 263 selfloop transitions, 105 changer transitions 486/944 dead transitions. [2022-12-06 17:39:33,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 944 transitions, 14324 flow [2022-12-06 17:39:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 17:39:33,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 17:39:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 856 transitions. [2022-12-06 17:39:33,177 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7925925925925926 [2022-12-06 17:39:33,178 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 58 predicate places. [2022-12-06 17:39:33,178 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 944 transitions, 14324 flow [2022-12-06 17:39:33,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:33,179 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:33,179 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:33,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 17:39:33,179 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash 366387279, now seen corresponding path program 8 times [2022-12-06 17:39:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:33,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914759826] [2022-12-06 17:39:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:33,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:33,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:33,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914759826] [2022-12-06 17:39:33,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914759826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:33,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:33,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 17:39:33,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320380490] [2022-12-06 17:39:33,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:33,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 17:39:33,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:33,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 17:39:33,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-06 17:39:33,384 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:33,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 944 transitions, 14324 flow. Second operand has 8 states, 8 states have (on average 100.25) internal successors, (802), 8 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:33,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:33,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:33,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:35,184 INFO L130 PetriNetUnfolder]: 5366/11369 cut-off events. [2022-12-06 17:39:35,184 INFO L131 PetriNetUnfolder]: For 96849/120373 co-relation queries the response was YES. [2022-12-06 17:39:35,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74919 conditions, 11369 events. 5366/11369 cut-off events. For 96849/120373 co-relation queries the response was YES. Maximal size of possible extension queue 924. Compared 109087 event pairs, 742 based on Foata normal form. 859/12070 useless extension candidates. Maximal degree in co-relation 44080. Up to 5833 conditions per place. [2022-12-06 17:39:35,245 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 240 selfloop transitions, 145 changer transitions 545/1020 dead transitions. [2022-12-06 17:39:35,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 1020 transitions, 17436 flow [2022-12-06 17:39:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:39:35,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:39:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 969 transitions. [2022-12-06 17:39:35,249 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7975308641975308 [2022-12-06 17:39:35,249 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 66 predicate places. [2022-12-06 17:39:35,249 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 1020 transitions, 17436 flow [2022-12-06 17:39:35,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 100.25) internal successors, (802), 8 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:35,250 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:35,250 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:35,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 17:39:35,250 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:35,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:35,251 INFO L85 PathProgramCache]: Analyzing trace with hash -945022263, now seen corresponding path program 9 times [2022-12-06 17:39:35,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:35,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114944004] [2022-12-06 17:39:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:35,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:35,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:35,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114944004] [2022-12-06 17:39:35,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114944004] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:35,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:35,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 17:39:35,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074356715] [2022-12-06 17:39:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:35,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 17:39:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:35,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 17:39:35,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 17:39:35,617 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 135 [2022-12-06 17:39:35,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 1020 transitions, 17436 flow. Second operand has 8 states, 8 states have (on average 92.375) internal successors, (739), 8 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:35,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:35,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 135 [2022-12-06 17:39:35,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:37,923 INFO L130 PetriNetUnfolder]: 5975/12811 cut-off events. [2022-12-06 17:39:37,923 INFO L131 PetriNetUnfolder]: For 101021/130802 co-relation queries the response was YES. [2022-12-06 17:39:37,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94820 conditions, 12811 events. 5975/12811 cut-off events. For 101021/130802 co-relation queries the response was YES. Maximal size of possible extension queue 1108. Compared 127225 event pairs, 714 based on Foata normal form. 481/13122 useless extension candidates. Maximal degree in co-relation 54690. Up to 6566 conditions per place. [2022-12-06 17:39:37,983 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 398 selfloop transitions, 122 changer transitions 729/1321 dead transitions. [2022-12-06 17:39:37,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 1321 transitions, 24704 flow [2022-12-06 17:39:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:39:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:39:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 895 transitions. [2022-12-06 17:39:37,994 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7366255144032922 [2022-12-06 17:39:37,995 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 74 predicate places. [2022-12-06 17:39:37,995 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 1321 transitions, 24704 flow [2022-12-06 17:39:37,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 92.375) internal successors, (739), 8 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:37,995 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:37,995 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:37,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 17:39:37,996 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:37,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:37,996 INFO L85 PathProgramCache]: Analyzing trace with hash 60849347, now seen corresponding path program 10 times [2022-12-06 17:39:37,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:37,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325925167] [2022-12-06 17:39:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:37,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:38,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:38,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:38,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325925167] [2022-12-06 17:39:38,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325925167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:38,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:38,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:39:38,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503115734] [2022-12-06 17:39:38,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:38,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:39:38,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:38,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:39:38,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:39:38,328 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:38,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 1321 transitions, 24704 flow. Second operand has 9 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:38,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:38,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:38,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:41,020 INFO L130 PetriNetUnfolder]: 6189/13136 cut-off events. [2022-12-06 17:39:41,020 INFO L131 PetriNetUnfolder]: For 139561/173379 co-relation queries the response was YES. [2022-12-06 17:39:41,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107098 conditions, 13136 events. 6189/13136 cut-off events. For 139561/173379 co-relation queries the response was YES. Maximal size of possible extension queue 1146. Compared 130522 event pairs, 805 based on Foata normal form. 746/13689 useless extension candidates. Maximal degree in co-relation 61907. Up to 6810 conditions per place. [2022-12-06 17:39:41,097 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 305 selfloop transitions, 207 changer transitions 817/1452 dead transitions. [2022-12-06 17:39:41,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 1452 transitions, 29977 flow [2022-12-06 17:39:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:39:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:39:41,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1185 transitions. [2022-12-06 17:39:41,101 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.797979797979798 [2022-12-06 17:39:41,101 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 84 predicate places. [2022-12-06 17:39:41,102 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 1452 transitions, 29977 flow [2022-12-06 17:39:41,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:41,102 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:41,102 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:41,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 17:39:41,102 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:41,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:41,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1377207563, now seen corresponding path program 11 times [2022-12-06 17:39:41,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:41,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174083402] [2022-12-06 17:39:41,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:41,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:41,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:41,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:41,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174083402] [2022-12-06 17:39:41,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174083402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:41,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:41,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:39:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845995614] [2022-12-06 17:39:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:41,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:39:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:39:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:39:41,419 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 135 [2022-12-06 17:39:41,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 1452 transitions, 29977 flow. Second operand has 9 states, 9 states have (on average 91.77777777777777) internal successors, (826), 9 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:41,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:41,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 135 [2022-12-06 17:39:41,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:44,345 INFO L130 PetriNetUnfolder]: 5841/12543 cut-off events. [2022-12-06 17:39:44,345 INFO L131 PetriNetUnfolder]: For 140898/178071 co-relation queries the response was YES. [2022-12-06 17:39:44,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114017 conditions, 12543 events. 5841/12543 cut-off events. For 140898/178071 co-relation queries the response was YES. Maximal size of possible extension queue 1128. Compared 125557 event pairs, 826 based on Foata normal form. 483/12820 useless extension candidates. Maximal degree in co-relation 65909. Up to 6693 conditions per place. [2022-12-06 17:39:44,419 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 440 selfloop transitions, 152 changer transitions 909/1573 dead transitions. [2022-12-06 17:39:44,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 1573 transitions, 35078 flow [2022-12-06 17:39:44,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:39:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:39:44,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1099 transitions. [2022-12-06 17:39:44,422 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7400673400673401 [2022-12-06 17:39:44,423 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 94 predicate places. [2022-12-06 17:39:44,423 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 1573 transitions, 35078 flow [2022-12-06 17:39:44,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 91.77777777777777) internal successors, (826), 9 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:44,423 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:44,424 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:44,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 17:39:44,424 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:44,424 INFO L85 PathProgramCache]: Analyzing trace with hash 261102017, now seen corresponding path program 12 times [2022-12-06 17:39:44,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:44,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251425436] [2022-12-06 17:39:44,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:44,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:44,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:44,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251425436] [2022-12-06 17:39:44,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251425436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:44,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:44,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 17:39:44,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423438065] [2022-12-06 17:39:44,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:44,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 17:39:44,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:44,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 17:39:44,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-06 17:39:44,669 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:44,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 1573 transitions, 35078 flow. Second operand has 8 states, 8 states have (on average 100.25) internal successors, (802), 8 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:44,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:44,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:44,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:47,815 INFO L130 PetriNetUnfolder]: 5697/12412 cut-off events. [2022-12-06 17:39:47,815 INFO L131 PetriNetUnfolder]: For 184780/273495 co-relation queries the response was YES. [2022-12-06 17:39:47,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120153 conditions, 12412 events. 5697/12412 cut-off events. For 184780/273495 co-relation queries the response was YES. Maximal size of possible extension queue 1124. Compared 124962 event pairs, 790 based on Foata normal form. 991/13173 useless extension candidates. Maximal degree in co-relation 107124. Up to 6605 conditions per place. [2022-12-06 17:39:47,880 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 302 selfloop transitions, 212 changer transitions 942/1597 dead transitions. [2022-12-06 17:39:47,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 1597 transitions, 38442 flow [2022-12-06 17:39:47,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:39:47,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:39:47,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 968 transitions. [2022-12-06 17:39:47,884 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7967078189300412 [2022-12-06 17:39:47,885 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 102 predicate places. [2022-12-06 17:39:47,885 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 1597 transitions, 38442 flow [2022-12-06 17:39:47,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 100.25) internal successors, (802), 8 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:47,886 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:47,886 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:47,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 17:39:47,886 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:47,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:47,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1658306523, now seen corresponding path program 13 times [2022-12-06 17:39:47,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:47,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587932662] [2022-12-06 17:39:47,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:47,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:48,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:48,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:48,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587932662] [2022-12-06 17:39:48,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587932662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:48,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:48,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:39:48,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937700537] [2022-12-06 17:39:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:48,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:39:48,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:48,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:39:48,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:39:48,120 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:48,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 1597 transitions, 38442 flow. Second operand has 9 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:48,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:48,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:48,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:51,379 INFO L130 PetriNetUnfolder]: 5625/12304 cut-off events. [2022-12-06 17:39:51,379 INFO L131 PetriNetUnfolder]: For 225310/299483 co-relation queries the response was YES. [2022-12-06 17:39:51,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127038 conditions, 12304 events. 5625/12304 cut-off events. For 225310/299483 co-relation queries the response was YES. Maximal size of possible extension queue 1120. Compared 124005 event pairs, 768 based on Foata normal form. 1134/13185 useless extension candidates. Maximal degree in co-relation 74486. Up to 6561 conditions per place. [2022-12-06 17:39:51,448 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 298 selfloop transitions, 209 changer transitions 963/1611 dead transitions. [2022-12-06 17:39:51,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 1611 transitions, 41622 flow [2022-12-06 17:39:51,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:39:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:39:51,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1181 transitions. [2022-12-06 17:39:51,458 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7952861952861953 [2022-12-06 17:39:51,458 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 112 predicate places. [2022-12-06 17:39:51,458 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 1611 transitions, 41622 flow [2022-12-06 17:39:51,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:51,459 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:51,459 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:51,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 17:39:51,459 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:51,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:51,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1545418363, now seen corresponding path program 14 times [2022-12-06 17:39:51,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:51,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347927529] [2022-12-06 17:39:51,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:51,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:51,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:51,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347927529] [2022-12-06 17:39:51,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347927529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:51,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:51,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:39:51,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318949340] [2022-12-06 17:39:51,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:51,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:39:51,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:51,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:39:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:39:51,677 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:51,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 1611 transitions, 41622 flow. Second operand has 9 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:51,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:51,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:51,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:54,610 INFO L130 PetriNetUnfolder]: 4612/10500 cut-off events. [2022-12-06 17:39:54,610 INFO L131 PetriNetUnfolder]: For 228077/336908 co-relation queries the response was YES. [2022-12-06 17:39:54,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116306 conditions, 10500 events. 4612/10500 cut-off events. For 228077/336908 co-relation queries the response was YES. Maximal size of possible extension queue 1028. Compared 107310 event pairs, 710 based on Foata normal form. 945/11220 useless extension candidates. Maximal degree in co-relation 63733. Up to 5164 conditions per place. [2022-12-06 17:39:54,658 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 246 selfloop transitions, 174 changer transitions 1036/1585 dead transitions. [2022-12-06 17:39:54,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 1585 transitions, 43897 flow [2022-12-06 17:39:54,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:39:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:39:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1181 transitions. [2022-12-06 17:39:54,660 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7952861952861953 [2022-12-06 17:39:54,660 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 122 predicate places. [2022-12-06 17:39:54,661 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 1585 transitions, 43897 flow [2022-12-06 17:39:54,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:54,661 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:54,661 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:54,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 17:39:54,662 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:54,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:54,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1657888561, now seen corresponding path program 15 times [2022-12-06 17:39:54,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:54,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613440927] [2022-12-06 17:39:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:54,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:54,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:54,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613440927] [2022-12-06 17:39:54,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613440927] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:54,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:54,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:39:54,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525741866] [2022-12-06 17:39:54,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:54,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:39:54,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:54,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:39:54,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:39:54,866 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:55,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 1585 transitions, 43897 flow. Second operand has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:55,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:55,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:55,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:58,005 INFO L130 PetriNetUnfolder]: 4685/10881 cut-off events. [2022-12-06 17:39:58,006 INFO L131 PetriNetUnfolder]: For 282884/360263 co-relation queries the response was YES. [2022-12-06 17:39:58,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126826 conditions, 10881 events. 4685/10881 cut-off events. For 282884/360263 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 112979 event pairs, 769 based on Foata normal form. 1206/11864 useless extension candidates. Maximal degree in co-relation 68150. Up to 5364 conditions per place. [2022-12-06 17:39:58,049 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 249 selfloop transitions, 221 changer transitions 1241/1838 dead transitions. [2022-12-06 17:39:58,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 1838 transitions, 54972 flow [2022-12-06 17:39:58,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:39:58,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:39:58,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1277 transitions. [2022-12-06 17:39:58,067 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7882716049382716 [2022-12-06 17:39:58,067 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 133 predicate places. [2022-12-06 17:39:58,067 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 1838 transitions, 54972 flow [2022-12-06 17:39:58,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:58,068 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:58,068 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:58,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-06 17:39:58,068 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:39:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:58,069 INFO L85 PathProgramCache]: Analyzing trace with hash -243118453, now seen corresponding path program 16 times [2022-12-06 17:39:58,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:58,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918991442] [2022-12-06 17:39:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:58,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:58,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:58,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918991442] [2022-12-06 17:39:58,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918991442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:58,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:58,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:39:58,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310482843] [2022-12-06 17:39:58,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:58,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:39:58,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:58,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:39:58,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:39:58,283 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:39:58,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 1838 transitions, 54972 flow. Second operand has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:58,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:58,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:39:58,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:01,582 INFO L130 PetriNetUnfolder]: 4689/10861 cut-off events. [2022-12-06 17:40:01,582 INFO L131 PetriNetUnfolder]: For 296710/349764 co-relation queries the response was YES. [2022-12-06 17:40:01,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134205 conditions, 10861 events. 4689/10861 cut-off events. For 296710/349764 co-relation queries the response was YES. Maximal size of possible extension queue 1053. Compared 113127 event pairs, 783 based on Foata normal form. 671/11341 useless extension candidates. Maximal degree in co-relation 72203. Up to 5348 conditions per place. [2022-12-06 17:40:01,633 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 235 selfloop transitions, 208 changer transitions 1282/1851 dead transitions. [2022-12-06 17:40:01,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 1851 transitions, 58698 flow [2022-12-06 17:40:01,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:40:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:40:01,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1277 transitions. [2022-12-06 17:40:01,635 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7882716049382716 [2022-12-06 17:40:01,635 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 144 predicate places. [2022-12-06 17:40:01,635 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 1851 transitions, 58698 flow [2022-12-06 17:40:01,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:01,637 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:01,637 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:01,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-06 17:40:01,637 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:40:01,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:01,638 INFO L85 PathProgramCache]: Analyzing trace with hash 634503433, now seen corresponding path program 17 times [2022-12-06 17:40:01,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:01,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628107885] [2022-12-06 17:40:01,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:01,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:01,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:01,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:01,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628107885] [2022-12-06 17:40:01,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628107885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:01,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:01,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:40:01,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839386934] [2022-12-06 17:40:01,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:01,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:40:01,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:01,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:40:01,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:40:01,849 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:40:01,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 1851 transitions, 58698 flow. Second operand has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:01,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:01,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:40:01,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:05,023 INFO L130 PetriNetUnfolder]: 4565/10853 cut-off events. [2022-12-06 17:40:05,023 INFO L131 PetriNetUnfolder]: For 379728/489492 co-relation queries the response was YES. [2022-12-06 17:40:05,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139248 conditions, 10853 events. 4565/10853 cut-off events. For 379728/489492 co-relation queries the response was YES. Maximal size of possible extension queue 1060. Compared 114158 event pairs, 807 based on Foata normal form. 1628/12224 useless extension candidates. Maximal degree in co-relation 75308. Up to 5206 conditions per place. [2022-12-06 17:40:05,074 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 237 selfloop transitions, 194 changer transitions 1318/1875 dead transitions. [2022-12-06 17:40:05,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1875 transitions, 62890 flow [2022-12-06 17:40:05,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:40:05,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:40:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1280 transitions. [2022-12-06 17:40:05,076 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7901234567901234 [2022-12-06 17:40:05,076 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 155 predicate places. [2022-12-06 17:40:05,076 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 1875 transitions, 62890 flow [2022-12-06 17:40:05,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:05,077 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:05,077 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:05,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-06 17:40:05,077 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:40:05,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:05,078 INFO L85 PathProgramCache]: Analyzing trace with hash -95827405, now seen corresponding path program 18 times [2022-12-06 17:40:05,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:05,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773941300] [2022-12-06 17:40:05,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:05,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:05,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:05,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:05,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773941300] [2022-12-06 17:40:05,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773941300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:05,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:05,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:40:05,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210534959] [2022-12-06 17:40:05,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:05,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:40:05,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:05,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:40:05,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:40:05,320 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 135 [2022-12-06 17:40:05,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 1875 transitions, 62890 flow. Second operand has 11 states, 11 states have (on average 90.9090909090909) internal successors, (1000), 11 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:05,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:05,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 135 [2022-12-06 17:40:05,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:09,461 INFO L130 PetriNetUnfolder]: 4665/11149 cut-off events. [2022-12-06 17:40:09,462 INFO L131 PetriNetUnfolder]: For 393066/485704 co-relation queries the response was YES. [2022-12-06 17:40:09,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152390 conditions, 11149 events. 4665/11149 cut-off events. For 393066/485704 co-relation queries the response was YES. Maximal size of possible extension queue 1108. Compared 118606 event pairs, 716 based on Foata normal form. 1265/12174 useless extension candidates. Maximal degree in co-relation 82080. Up to 5389 conditions per place. [2022-12-06 17:40:09,519 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 359 selfloop transitions, 160 changer transitions 1482/2073 dead transitions. [2022-12-06 17:40:09,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 2073 transitions, 71000 flow [2022-12-06 17:40:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:40:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:40:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1497 transitions. [2022-12-06 17:40:09,521 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7392592592592593 [2022-12-06 17:40:09,522 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 169 predicate places. [2022-12-06 17:40:09,522 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 2073 transitions, 71000 flow [2022-12-06 17:40:09,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.9090909090909) internal successors, (1000), 11 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:09,522 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:09,522 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:09,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-06 17:40:09,522 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:40:09,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:09,523 INFO L85 PathProgramCache]: Analyzing trace with hash -926156945, now seen corresponding path program 19 times [2022-12-06 17:40:09,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:09,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751101706] [2022-12-06 17:40:09,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:09,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:09,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:09,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751101706] [2022-12-06 17:40:09,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751101706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:09,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:09,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:40:09,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581566932] [2022-12-06 17:40:09,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:09,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:40:09,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:09,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:40:09,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:40:09,753 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:40:09,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 2073 transitions, 71000 flow. Second operand has 11 states, 11 states have (on average 99.0909090909091) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:09,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:09,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:40:09,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:13,930 INFO L130 PetriNetUnfolder]: 4683/11183 cut-off events. [2022-12-06 17:40:13,930 INFO L131 PetriNetUnfolder]: For 442236/548846 co-relation queries the response was YES. [2022-12-06 17:40:13,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160502 conditions, 11183 events. 4683/11183 cut-off events. For 442236/548846 co-relation queries the response was YES. Maximal size of possible extension queue 1106. Compared 119416 event pairs, 741 based on Foata normal form. 1172/12119 useless extension candidates. Maximal degree in co-relation 86828. Up to 5412 conditions per place. [2022-12-06 17:40:13,979 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 211 selfloop transitions, 179 changer transitions 1553/2097 dead transitions. [2022-12-06 17:40:13,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 2097 transitions, 75478 flow [2022-12-06 17:40:13,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:40:13,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:40:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1583 transitions. [2022-12-06 17:40:13,981 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7817283950617284 [2022-12-06 17:40:13,982 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 183 predicate places. [2022-12-06 17:40:13,982 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 2097 transitions, 75478 flow [2022-12-06 17:40:13,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 99.0909090909091) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:13,983 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:13,983 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:13,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-06 17:40:13,983 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:40:13,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:13,983 INFO L85 PathProgramCache]: Analyzing trace with hash 133368195, now seen corresponding path program 20 times [2022-12-06 17:40:13,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:13,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517073506] [2022-12-06 17:40:13,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:13,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:14,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:14,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517073506] [2022-12-06 17:40:14,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517073506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:14,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:14,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:40:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177356447] [2022-12-06 17:40:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:14,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:40:14,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:40:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:40:14,204 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:40:14,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 2097 transitions, 75478 flow. Second operand has 11 states, 11 states have (on average 99.0909090909091) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:14,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:14,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:40:14,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:18,021 INFO L130 PetriNetUnfolder]: 4698/11283 cut-off events. [2022-12-06 17:40:18,021 INFO L131 PetriNetUnfolder]: For 465417/519490 co-relation queries the response was YES. [2022-12-06 17:40:18,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168814 conditions, 11283 events. 4698/11283 cut-off events. For 465417/519490 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 121306 event pairs, 702 based on Foata normal form. 702/11799 useless extension candidates. Maximal degree in co-relation 91537. Up to 5419 conditions per place. [2022-12-06 17:40:18,074 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 199 selfloop transitions, 177 changer transitions 1609/2136 dead transitions. [2022-12-06 17:40:18,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 2136 transitions, 80703 flow [2022-12-06 17:40:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:40:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:40:18,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1589 transitions. [2022-12-06 17:40:18,076 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7846913580246914 [2022-12-06 17:40:18,076 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 197 predicate places. [2022-12-06 17:40:18,076 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 2136 transitions, 80703 flow [2022-12-06 17:40:18,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 99.0909090909091) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:18,077 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:18,077 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:18,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-06 17:40:18,077 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:40:18,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:18,078 INFO L85 PathProgramCache]: Analyzing trace with hash 106057879, now seen corresponding path program 21 times [2022-12-06 17:40:18,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:18,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292409856] [2022-12-06 17:40:18,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:18,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:18,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:18,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292409856] [2022-12-06 17:40:18,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292409856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:18,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:18,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 17:40:18,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702966088] [2022-12-06 17:40:18,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:18,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 17:40:18,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:18,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 17:40:18,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-06 17:40:18,246 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:40:18,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 2136 transitions, 80703 flow. Second operand has 8 states, 8 states have (on average 100.25) internal successors, (802), 8 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:18,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:18,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:40:18,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:22,042 INFO L130 PetriNetUnfolder]: 3838/9688 cut-off events. [2022-12-06 17:40:22,042 INFO L131 PetriNetUnfolder]: For 470763/547023 co-relation queries the response was YES. [2022-12-06 17:40:22,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151124 conditions, 9688 events. 3838/9688 cut-off events. For 470763/547023 co-relation queries the response was YES. Maximal size of possible extension queue 964. Compared 104664 event pairs, 654 based on Foata normal form. 785/10252 useless extension candidates. Maximal degree in co-relation 81255. Up to 4934 conditions per place. [2022-12-06 17:40:22,092 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 147 selfloop transitions, 101 changer transitions 1597/1976 dead transitions. [2022-12-06 17:40:22,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 1976 transitions, 77887 flow [2022-12-06 17:40:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:40:22,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:40:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 968 transitions. [2022-12-06 17:40:22,093 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7967078189300412 [2022-12-06 17:40:22,094 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 205 predicate places. [2022-12-06 17:40:22,094 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 1976 transitions, 77887 flow [2022-12-06 17:40:22,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 100.25) internal successors, (802), 8 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:22,094 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:22,095 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:22,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-06 17:40:22,095 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:40:22,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:22,095 INFO L85 PathProgramCache]: Analyzing trace with hash -876035679, now seen corresponding path program 22 times [2022-12-06 17:40:22,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:22,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096780662] [2022-12-06 17:40:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:22,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:22,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:22,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:22,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096780662] [2022-12-06 17:40:22,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096780662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:22,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:22,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:40:22,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562971629] [2022-12-06 17:40:22,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:22,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:40:22,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:22,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:40:22,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:40:22,319 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:40:22,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 1976 transitions, 77887 flow. Second operand has 9 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:22,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:22,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:40:22,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:25,528 INFO L130 PetriNetUnfolder]: 3100/8235 cut-off events. [2022-12-06 17:40:25,528 INFO L131 PetriNetUnfolder]: For 456233/542049 co-relation queries the response was YES. [2022-12-06 17:40:25,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135068 conditions, 8235 events. 3100/8235 cut-off events. For 456233/542049 co-relation queries the response was YES. Maximal size of possible extension queue 856. Compared 89605 event pairs, 504 based on Foata normal form. 911/8949 useless extension candidates. Maximal degree in co-relation 70993. Up to 4267 conditions per place. [2022-12-06 17:40:25,565 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 59 selfloop transitions, 32 changer transitions 1667/1854 dead transitions. [2022-12-06 17:40:25,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1854 transitions, 76564 flow [2022-12-06 17:40:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:40:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:40:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1183 transitions. [2022-12-06 17:40:25,567 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7966329966329966 [2022-12-06 17:40:25,567 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 215 predicate places. [2022-12-06 17:40:25,567 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 1854 transitions, 76564 flow [2022-12-06 17:40:25,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:25,568 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:25,568 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:25,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-06 17:40:25,568 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:40:25,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:25,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1622377751, now seen corresponding path program 23 times [2022-12-06 17:40:25,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:25,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8179450] [2022-12-06 17:40:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:25,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:25,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:25,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:25,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8179450] [2022-12-06 17:40:25,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8179450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:25,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:25,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:40:25,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775092749] [2022-12-06 17:40:25,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:25,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:40:25,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:25,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:40:25,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:40:25,801 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:40:25,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 1854 transitions, 76564 flow. Second operand has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:25,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:25,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:40:25,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:28,777 INFO L130 PetriNetUnfolder]: 2880/7806 cut-off events. [2022-12-06 17:40:28,778 INFO L131 PetriNetUnfolder]: For 453745/508400 co-relation queries the response was YES. [2022-12-06 17:40:28,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133703 conditions, 7806 events. 2880/7806 cut-off events. For 453745/508400 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 85709 event pairs, 427 based on Foata normal form. 618/8261 useless extension candidates. Maximal degree in co-relation 70693. Up to 4037 conditions per place. [2022-12-06 17:40:28,816 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 35 selfloop transitions, 25 changer transitions 1673/1821 dead transitions. [2022-12-06 17:40:28,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 1821 transitions, 78288 flow [2022-12-06 17:40:28,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:40:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:40:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1279 transitions. [2022-12-06 17:40:28,818 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7895061728395062 [2022-12-06 17:40:28,819 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 226 predicate places. [2022-12-06 17:40:28,819 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 1821 transitions, 78288 flow [2022-12-06 17:40:28,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:28,819 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:28,819 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:28,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-06 17:40:28,820 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 17:40:28,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:28,820 INFO L85 PathProgramCache]: Analyzing trace with hash 761074701, now seen corresponding path program 24 times [2022-12-06 17:40:28,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:28,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362595662] [2022-12-06 17:40:28,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:28,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:29,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:29,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362595662] [2022-12-06 17:40:29,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362595662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:29,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:29,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:40:29,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758091579] [2022-12-06 17:40:29,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:29,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:40:29,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:29,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:40:29,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:40:29,247 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 135 [2022-12-06 17:40:29,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 1821 transitions, 78288 flow. Second operand has 11 states, 11 states have (on average 99.0909090909091) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:29,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:29,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 135 [2022-12-06 17:40:29,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:32,618 INFO L130 PetriNetUnfolder]: 2770/7805 cut-off events. [2022-12-06 17:40:32,618 INFO L131 PetriNetUnfolder]: For 548986/650149 co-relation queries the response was YES. [2022-12-06 17:40:32,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135389 conditions, 7805 events. 2770/7805 cut-off events. For 548986/650149 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 85894 event pairs, 401 based on Foata normal form. 1262/8851 useless extension candidates. Maximal degree in co-relation 116337. Up to 3856 conditions per place. [2022-12-06 17:40:32,657 INFO L137 encePairwiseOnDemand]: 122/135 looper letters, 0 selfloop transitions, 0 changer transitions 1812/1812 dead transitions. [2022-12-06 17:40:32,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 1812 transitions, 81157 flow [2022-12-06 17:40:32,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:40:32,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:40:32,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1586 transitions. [2022-12-06 17:40:32,659 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7832098765432098 [2022-12-06 17:40:32,660 INFO L294 CegarLoopForPetriNet]: 130 programPoint places, 237 predicate places. [2022-12-06 17:40:32,660 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 1812 transitions, 81157 flow [2022-12-06 17:40:32,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 99.0909090909091) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:32,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 17:40:32,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 17:40:32,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 17:40:32,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 17:40:32,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 17:40:32,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-06 17:40:32,665 INFO L458 BasicCegarLoop]: Path program histogram: [24] [2022-12-06 17:40:32,668 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:40:32,668 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:40:32,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:40:32 BasicIcfg [2022-12-06 17:40:32,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:40:32,673 INFO L158 Benchmark]: Toolchain (without parser) took 76101.01ms. Allocated memory was 173.0MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 150.0MB in the beginning and 5.9GB in the end (delta: -5.7GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2022-12-06 17:40:32,673 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 173.0MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:40:32,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.79ms. Allocated memory is still 173.0MB. Free memory was 150.0MB in the beginning and 134.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 17:40:32,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.09ms. Allocated memory is still 173.0MB. Free memory was 134.9MB in the beginning and 132.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:40:32,674 INFO L158 Benchmark]: Boogie Preprocessor took 41.80ms. Allocated memory is still 173.0MB. Free memory was 132.8MB in the beginning and 131.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:40:32,674 INFO L158 Benchmark]: RCFGBuilder took 577.43ms. Allocated memory is still 173.0MB. Free memory was 131.2MB in the beginning and 108.7MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 17:40:32,674 INFO L158 Benchmark]: TraceAbstraction took 75155.63ms. Allocated memory was 173.0MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 108.2MB in the beginning and 5.9GB in the end (delta: -5.8GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2022-12-06 17:40:32,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 173.0MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 272.79ms. Allocated memory is still 173.0MB. Free memory was 150.0MB in the beginning and 134.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.09ms. Allocated memory is still 173.0MB. Free memory was 134.9MB in the beginning and 132.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.80ms. Allocated memory is still 173.0MB. Free memory was 132.8MB in the beginning and 131.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 577.43ms. Allocated memory is still 173.0MB. Free memory was 131.2MB in the beginning and 108.7MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 75155.63ms. Allocated memory was 173.0MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 108.2MB in the beginning and 5.9GB in the end (delta: -5.8GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 146]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 167 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 75.0s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 24, EmptinessCheckTime: 0.0s, AutomataDifference: 66.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2037 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2037 mSDsluCounter, 1314 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 909 mSDsCounter, 664 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6706 IncrementalHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 664 mSolverCounterUnsat, 405 mSDtfsCounter, 6706 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 326 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81157occurred in iteration=24, InterpolantAutomatonStates: 264, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 2760 NumberOfCodeBlocks, 2760 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2736 ConstructedInterpolants, 0 QuantifiedInterpolants, 7069 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 17:40:32,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...