/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:59:12,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:59:12,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:59:12,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:59:12,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:59:12,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:59:12,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:59:12,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:59:12,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:59:12,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:59:12,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:59:12,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:59:12,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:59:12,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:59:12,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:59:12,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:59:12,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:59:12,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:59:12,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:59:12,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:59:12,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:59:12,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:59:12,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:59:12,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:59:12,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:59:12,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:59:12,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:59:12,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:59:12,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:59:12,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:59:12,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:59:12,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:59:12,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:59:12,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:59:12,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:59:12,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:59:12,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:59:12,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:59:12,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:59:12,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:59:12,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:59:12,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 02:59:12,715 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:59:12,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:59:12,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:59:12,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:59:12,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:59:12,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:59:12,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:59:12,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:59:12,717 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:59:12,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:59:12,717 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:59:12,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:59:12,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:59:12,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:59:12,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:59:12,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:59:12,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:59:12,718 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:59:12,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:59:12,718 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:59:12,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:59:12,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:59:12,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:59:12,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:59:12,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:59:12,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:59:12,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:59:12,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:59:12,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:59:12,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:59:12,719 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:59:12,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:59:12,719 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:59:12,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:59:12,720 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:59:12,720 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:59:12,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:59:12,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:59:12,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:59:12,978 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:59:12,978 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:59:12,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c [2023-04-02 02:59:14,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:59:14,435 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:59:14,436 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c [2023-04-02 02:59:14,452 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce26f8373/6e032a64acf242f68f659ff1cfa1d46f/FLAG18709947e [2023-04-02 02:59:14,466 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce26f8373/6e032a64acf242f68f659ff1cfa1d46f [2023-04-02 02:59:14,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:59:14,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:59:14,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:59:14,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:59:14,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:59:14,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:59:14" (1/1) ... [2023-04-02 02:59:14,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf4fa22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:14, skipping insertion in model container [2023-04-02 02:59:14,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:59:14" (1/1) ... [2023-04-02 02:59:14,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:59:14,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:59:14,776 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c[17414,17427] [2023-04-02 02:59:15,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:59:15,049 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:59:15,082 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c[17414,17427] [2023-04-02 02:59:15,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:59:15,192 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:59:15,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15 WrapperNode [2023-04-02 02:59:15,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:59:15,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:59:15,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:59:15,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:59:15,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:59:15,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:59:15,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:59:15,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:59:15,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (1/1) ... [2023-04-02 02:59:15,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:59:15,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:59:15,389 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) [2023-04-02 02:59:15,409 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 [2023-04-02 02:59:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:59:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:59:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:59:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:59:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:59:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:59:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:59:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:59:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:59:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:59:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:59:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:59:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 02:59:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:59:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:59:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:59:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:59:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:59:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:59:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:59:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:59:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:59:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:59:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:59:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:59:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:59:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:59:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:59:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:59:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:59:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:59:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:59:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 02:59:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:59:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:59:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:59:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:59:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:59:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:59:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:59:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:59:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:59:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:59:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:59:15,762 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:59:15,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:59:17,006 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:59:17,025 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:59:17,025 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:59:17,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:59:17 BoogieIcfgContainer [2023-04-02 02:59:17,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:59:17,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:59:17,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:59:17,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:59:17,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:59:14" (1/3) ... [2023-04-02 02:59:17,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30abbe81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:59:17, skipping insertion in model container [2023-04-02 02:59:17,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:59:15" (2/3) ... [2023-04-02 02:59:17,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30abbe81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:59:17, skipping insertion in model container [2023-04-02 02:59:17,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:59:17" (3/3) ... [2023-04-02 02:59:17,038 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product17.cil.c [2023-04-02 02:59:17,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:59:17,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:59:17,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:59:17,133 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=true, 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;@44a627f4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:59:17,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:59:17,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 742 states, 517 states have (on average 1.6460348162475822) internal successors, (851), 544 states have internal predecessors, (851), 165 states have call successors, (165), 47 states have call predecessors, (165), 47 states have return successors, (165), 156 states have call predecessors, (165), 165 states have call successors, (165) [2023-04-02 02:59:17,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-04-02 02:59:17,163 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:59:17,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:59:17,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:59:17,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:59:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash -695157022, now seen corresponding path program 1 times [2023-04-02 02:59:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:59:17,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999645841] [2023-04-02 02:59:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:59:17,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:59:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:59:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:17,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:17,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:59:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:59:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:59:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:59:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:59:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 02:59:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:59:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:59:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:59:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 02:59:18,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:59:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999645841] [2023-04-02 02:59:18,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999645841] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:59:18,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:59:18,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 02:59:18,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060088248] [2023-04-02 02:59:18,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:59:18,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 02:59:18,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:59:18,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 02:59:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:59:18,656 INFO L87 Difference]: Start difference. First operand has 742 states, 517 states have (on average 1.6460348162475822) internal successors, (851), 544 states have internal predecessors, (851), 165 states have call successors, (165), 47 states have call predecessors, (165), 47 states have return successors, (165), 156 states have call predecessors, (165), 165 states have call successors, (165) Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:59:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:59:27,428 INFO L93 Difference]: Finished difference Result 1703 states and 3024 transitions. [2023-04-02 02:59:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:59:27,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 107 [2023-04-02 02:59:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:59:27,466 INFO L225 Difference]: With dead ends: 1703 [2023-04-02 02:59:27,466 INFO L226 Difference]: Without dead ends: 1110 [2023-04-02 02:59:27,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:59:27,485 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 2479 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 4335 mSolverCounterSat, 1041 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 5376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1041 IncrementalHoareTripleChecker+Valid, 4335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:59:27,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 750 Invalid, 5376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1041 Valid, 4335 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-04-02 02:59:27,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2023-04-02 02:59:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 582. [2023-04-02 02:59:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 432 states have (on average 1.6782407407407407) internal successors, (725), 451 states have internal predecessors, (725), 110 states have call successors, (110), 43 states have call predecessors, (110), 39 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-04-02 02:59:27,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 937 transitions. [2023-04-02 02:59:27,785 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 937 transitions. Word has length 107 [2023-04-02 02:59:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:59:27,785 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 937 transitions. [2023-04-02 02:59:27,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:59:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 937 transitions. [2023-04-02 02:59:27,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-04-02 02:59:27,792 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:59:27,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:59:27,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 02:59:27,792 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:59:27,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:59:27,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1009293311, now seen corresponding path program 1 times [2023-04-02 02:59:27,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:59:27,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635868778] [2023-04-02 02:59:27,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:59:27,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:59:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:59:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:59:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:59:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:59:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:59:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:59:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:59:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:59:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:59:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 02:59:28,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:59:28,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635868778] [2023-04-02 02:59:28,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635868778] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:59:28,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:59:28,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:59:28,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235674203] [2023-04-02 02:59:28,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:59:28,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:59:28,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:59:28,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:59:28,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:59:28,697 INFO L87 Difference]: Start difference. First operand 582 states and 937 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:59:39,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:59:39,207 INFO L93 Difference]: Finished difference Result 1666 states and 2981 transitions. [2023-04-02 02:59:39,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 02:59:39,208 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 110 [2023-04-02 02:59:39,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:59:39,218 INFO L225 Difference]: With dead ends: 1666 [2023-04-02 02:59:39,219 INFO L226 Difference]: Without dead ends: 1121 [2023-04-02 02:59:39,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2023-04-02 02:59:39,223 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1880 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 8228 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 9032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 8228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:59:39,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1969 Valid, 1234 Invalid, 9032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [804 Valid, 8228 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-04-02 02:59:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2023-04-02 02:59:39,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 586. [2023-04-02 02:59:39,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 435 states have (on average 1.671264367816092) internal successors, (727), 454 states have internal predecessors, (727), 110 states have call successors, (110), 43 states have call predecessors, (110), 40 states have return successors, (104), 100 states have call predecessors, (104), 102 states have call successors, (104) [2023-04-02 02:59:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 941 transitions. [2023-04-02 02:59:39,458 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 941 transitions. Word has length 110 [2023-04-02 02:59:39,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:59:39,459 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 941 transitions. [2023-04-02 02:59:39,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:59:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 941 transitions. [2023-04-02 02:59:39,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 02:59:39,467 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:59:39,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:59:39,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 02:59:39,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:59:39,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:59:39,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1994318889, now seen corresponding path program 1 times [2023-04-02 02:59:39,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:59:39,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366358305] [2023-04-02 02:59:39,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:59:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:59:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:39,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:59:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:59:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:59:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:39,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:59:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:59:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:59:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:59:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 02:59:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:59:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 02:59:40,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:59:40,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366358305] [2023-04-02 02:59:40,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366358305] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:59:40,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:59:40,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:59:40,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836670964] [2023-04-02 02:59:40,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:59:40,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:59:40,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:59:40,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:59:40,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:59:40,407 INFO L87 Difference]: Start difference. First operand 586 states and 941 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:59:59,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:59:59,125 INFO L93 Difference]: Finished difference Result 3402 states and 6438 transitions. [2023-04-02 02:59:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-04-02 02:59:59,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 115 [2023-04-02 02:59:59,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:59:59,153 INFO L225 Difference]: With dead ends: 3402 [2023-04-02 02:59:59,153 INFO L226 Difference]: Without dead ends: 2853 [2023-04-02 02:59:59,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=797, Invalid=2283, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 02:59:59,161 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 4724 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 10751 mSolverCounterSat, 2425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 13176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2425 IncrementalHoareTripleChecker+Valid, 10751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-04-02 02:59:59,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 1619 Invalid, 13176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2425 Valid, 10751 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-04-02 02:59:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2023-04-02 02:59:59,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 1463. [2023-04-02 02:59:59,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1085 states have (on average 1.631336405529954) internal successors, (1770), 1132 states have internal predecessors, (1770), 277 states have call successors, (277), 100 states have call predecessors, (277), 100 states have return successors, (310), 266 states have call predecessors, (310), 269 states have call successors, (310) [2023-04-02 02:59:59,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2357 transitions. [2023-04-02 02:59:59,670 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2357 transitions. Word has length 115 [2023-04-02 02:59:59,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:59:59,670 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2357 transitions. [2023-04-02 02:59:59,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:59:59,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2357 transitions. [2023-04-02 02:59:59,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 02:59:59,674 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:59:59,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:59:59,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 02:59:59,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:59:59,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:59:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 707403011, now seen corresponding path program 1 times [2023-04-02 02:59:59,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:59:59,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699826673] [2023-04-02 02:59:59,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:59:59,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:59:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:59,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:00:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 03:00:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:00:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 03:00:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 03:00:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:00:00,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:00,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699826673] [2023-04-02 03:00:00,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699826673] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:00,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:00,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 03:00:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666560392] [2023-04-02 03:00:00,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:00,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 03:00:00,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:00,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 03:00:00,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-04-02 03:00:00,712 INFO L87 Difference]: Start difference. First operand 1463 states and 2357 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (24), 8 states have call predecessors, (24), 6 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2023-04-02 03:00:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:16,996 INFO L93 Difference]: Finished difference Result 4505 states and 8177 transitions. [2023-04-02 03:00:16,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 03:00:16,997 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (24), 8 states have call predecessors, (24), 6 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 124 [2023-04-02 03:00:16,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:17,018 INFO L225 Difference]: With dead ends: 4505 [2023-04-02 03:00:17,018 INFO L226 Difference]: Without dead ends: 2905 [2023-04-02 03:00:17,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2023-04-02 03:00:17,030 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 4936 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 11650 mSolverCounterSat, 2087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5013 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 13737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2087 IncrementalHoareTripleChecker+Valid, 11650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:17,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5013 Valid, 1543 Invalid, 13737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2087 Valid, 11650 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-04-02 03:00:17,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2023-04-02 03:00:17,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 1538. [2023-04-02 03:00:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1143 states have (on average 1.6027996500437445) internal successors, (1832), 1192 states have internal predecessors, (1832), 289 states have call successors, (289), 105 states have call predecessors, (289), 105 states have return successors, (331), 276 states have call predecessors, (331), 281 states have call successors, (331) [2023-04-02 03:00:17,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2452 transitions. [2023-04-02 03:00:17,638 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2452 transitions. Word has length 124 [2023-04-02 03:00:17,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:17,639 INFO L495 AbstractCegarLoop]: Abstraction has 1538 states and 2452 transitions. [2023-04-02 03:00:17,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (24), 8 states have call predecessors, (24), 6 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2023-04-02 03:00:17,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2452 transitions. [2023-04-02 03:00:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-04-02 03:00:17,642 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:17,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:17,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 03:00:17,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:17,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:17,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1318561298, now seen corresponding path program 1 times [2023-04-02 03:00:17,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:17,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140815359] [2023-04-02 03:00:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:17,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:17,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:17,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:17,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:00:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 03:00:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:00:18,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:18,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140815359] [2023-04-02 03:00:18,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140815359] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:18,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:18,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 03:00:18,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731818998] [2023-04-02 03:00:18,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:18,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 03:00:18,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:18,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 03:00:18,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-04-02 03:00:18,611 INFO L87 Difference]: Start difference. First operand 1538 states and 2452 transitions. Second operand has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:30,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:30,418 INFO L93 Difference]: Finished difference Result 4452 states and 8182 transitions. [2023-04-02 03:00:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:00:30,421 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 127 [2023-04-02 03:00:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:30,447 INFO L225 Difference]: With dead ends: 4452 [2023-04-02 03:00:30,447 INFO L226 Difference]: Without dead ends: 2951 [2023-04-02 03:00:30,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=259, Invalid=797, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 03:00:30,457 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1508 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 10317 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 10933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 10317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:30,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 1432 Invalid, 10933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [616 Valid, 10317 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-04-02 03:00:30,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2023-04-02 03:00:31,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1562. [2023-04-02 03:00:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1155 states have (on average 1.5956709956709956) internal successors, (1843), 1212 states have internal predecessors, (1843), 293 states have call successors, (293), 105 states have call predecessors, (293), 113 states have return successors, (363), 280 states have call predecessors, (363), 285 states have call successors, (363) [2023-04-02 03:00:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2499 transitions. [2023-04-02 03:00:31,096 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2499 transitions. Word has length 127 [2023-04-02 03:00:31,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:31,097 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 2499 transitions. [2023-04-02 03:00:31,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2499 transitions. [2023-04-02 03:00:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-04-02 03:00:31,101 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:31,102 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:31,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 03:00:31,102 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:31,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash 950064639, now seen corresponding path program 1 times [2023-04-02 03:00:31,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:31,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951850039] [2023-04-02 03:00:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:31,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:00:31,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:31,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951850039] [2023-04-02 03:00:31,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951850039] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:31,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:31,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:00:31,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410882078] [2023-04-02 03:00:31,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:31,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:00:31,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:31,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:00:31,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:31,957 INFO L87 Difference]: Start difference. First operand 1562 states and 2499 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:41,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:41,275 INFO L93 Difference]: Finished difference Result 4372 states and 7862 transitions. [2023-04-02 03:00:41,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:00:41,275 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 128 [2023-04-02 03:00:41,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:41,296 INFO L225 Difference]: With dead ends: 4372 [2023-04-02 03:00:41,296 INFO L226 Difference]: Without dead ends: 2893 [2023-04-02 03:00:41,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:00:41,304 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 3088 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 7655 mSolverCounterSat, 1179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3175 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 8834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1179 IncrementalHoareTripleChecker+Valid, 7655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:41,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3175 Valid, 1043 Invalid, 8834 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1179 Valid, 7655 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 03:00:41,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2023-04-02 03:00:41,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1562. [2023-04-02 03:00:41,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1155 states have (on average 1.5913419913419913) internal successors, (1838), 1212 states have internal predecessors, (1838), 293 states have call successors, (293), 105 states have call predecessors, (293), 113 states have return successors, (363), 280 states have call predecessors, (363), 285 states have call successors, (363) [2023-04-02 03:00:41,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2494 transitions. [2023-04-02 03:00:41,870 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2494 transitions. Word has length 128 [2023-04-02 03:00:41,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:41,870 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 2494 transitions. [2023-04-02 03:00:41,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:41,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2494 transitions. [2023-04-02 03:00:41,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-02 03:00:41,874 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:41,874 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:41,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 03:00:41,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:41,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:41,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1774374702, now seen corresponding path program 1 times [2023-04-02 03:00:41,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:41,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396375256] [2023-04-02 03:00:41,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:41,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 03:00:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 03:00:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:42,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:00:42,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:42,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396375256] [2023-04-02 03:00:42,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396375256] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:42,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:42,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:00:42,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906879588] [2023-04-02 03:00:42,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:42,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:00:42,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:42,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:00:42,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:42,815 INFO L87 Difference]: Start difference. First operand 1562 states and 2494 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:52,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:52,824 INFO L93 Difference]: Finished difference Result 4372 states and 7857 transitions. [2023-04-02 03:00:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:00:52,826 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2023-04-02 03:00:52,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:52,849 INFO L225 Difference]: With dead ends: 4372 [2023-04-02 03:00:52,849 INFO L226 Difference]: Without dead ends: 2893 [2023-04-02 03:00:52,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:00:52,861 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 1488 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 7890 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 8499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 7890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:52,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 1056 Invalid, 8499 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [609 Valid, 7890 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-04-02 03:00:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2023-04-02 03:00:53,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1562. [2023-04-02 03:00:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1155 states have (on average 1.587012987012987) internal successors, (1833), 1212 states have internal predecessors, (1833), 293 states have call successors, (293), 105 states have call predecessors, (293), 113 states have return successors, (363), 280 states have call predecessors, (363), 285 states have call successors, (363) [2023-04-02 03:00:53,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2489 transitions. [2023-04-02 03:00:53,500 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2489 transitions. Word has length 129 [2023-04-02 03:00:53,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:53,501 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 2489 transitions. [2023-04-02 03:00:53,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2489 transitions. [2023-04-02 03:00:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 03:00:53,504 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:53,505 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:53,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 03:00:53,505 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:53,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash -193061020, now seen corresponding path program 1 times [2023-04-02 03:00:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623241575] [2023-04-02 03:00:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:53,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 03:00:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 03:00:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:00:54,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:54,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623241575] [2023-04-02 03:00:54,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623241575] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:54,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:54,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:00:54,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956396435] [2023-04-02 03:00:54,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:54,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:00:54,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:54,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:00:54,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:54,391 INFO L87 Difference]: Start difference. First operand 1562 states and 2489 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:01:03,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:03,902 INFO L93 Difference]: Finished difference Result 4372 states and 7852 transitions. [2023-04-02 03:01:03,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:01:03,902 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 130 [2023-04-02 03:01:03,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:03,917 INFO L225 Difference]: With dead ends: 4372 [2023-04-02 03:01:03,917 INFO L226 Difference]: Without dead ends: 2893 [2023-04-02 03:01:03,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:01:03,924 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1888 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 7527 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 8328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 7527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:03,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 1020 Invalid, 8328 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [801 Valid, 7527 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-04-02 03:01:03,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2023-04-02 03:01:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1562. [2023-04-02 03:01:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1155 states have (on average 1.5826839826839827) internal successors, (1828), 1212 states have internal predecessors, (1828), 293 states have call successors, (293), 105 states have call predecessors, (293), 113 states have return successors, (363), 280 states have call predecessors, (363), 285 states have call successors, (363) [2023-04-02 03:01:04,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2484 transitions. [2023-04-02 03:01:04,450 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2484 transitions. Word has length 130 [2023-04-02 03:01:04,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:04,450 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 2484 transitions. [2023-04-02 03:01:04,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:01:04,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2484 transitions. [2023-04-02 03:01:04,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-02 03:01:04,453 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:04,453 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:04,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 03:01:04,454 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:04,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:04,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1489697139, now seen corresponding path program 1 times [2023-04-02 03:01:04,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:04,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880848603] [2023-04-02 03:01:04,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:04,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:04,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:01:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:01:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:01:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:05,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:05,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880848603] [2023-04-02 03:01:05,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880848603] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:05,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:05,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:01:05,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972474] [2023-04-02 03:01:05,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:05,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:01:05,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:05,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:01:05,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:01:05,288 INFO L87 Difference]: Start difference. First operand 1562 states and 2484 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:01:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:14,645 INFO L93 Difference]: Finished difference Result 4372 states and 7847 transitions. [2023-04-02 03:01:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:01:14,646 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 131 [2023-04-02 03:01:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:14,662 INFO L225 Difference]: With dead ends: 4372 [2023-04-02 03:01:14,663 INFO L226 Difference]: Without dead ends: 2893 [2023-04-02 03:01:14,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:01:14,669 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 3447 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 7111 mSolverCounterSat, 1432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3535 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 8543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1432 IncrementalHoareTripleChecker+Valid, 7111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:14,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3535 Valid, 1008 Invalid, 8543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1432 Valid, 7111 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 03:01:14,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2023-04-02 03:01:15,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1562. [2023-04-02 03:01:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1155 states have (on average 1.5783549783549784) internal successors, (1823), 1212 states have internal predecessors, (1823), 293 states have call successors, (293), 105 states have call predecessors, (293), 113 states have return successors, (363), 280 states have call predecessors, (363), 285 states have call successors, (363) [2023-04-02 03:01:15,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2479 transitions. [2023-04-02 03:01:15,365 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2479 transitions. Word has length 131 [2023-04-02 03:01:15,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:15,365 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 2479 transitions. [2023-04-02 03:01:15,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:01:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2479 transitions. [2023-04-02 03:01:15,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-02 03:01:15,368 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:15,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:15,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 03:01:15,369 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:15,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:15,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2129087188, now seen corresponding path program 1 times [2023-04-02 03:01:15,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:15,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50034255] [2023-04-02 03:01:15,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:15,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:01:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:01:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:01:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:16,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:16,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50034255] [2023-04-02 03:01:16,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50034255] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:16,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:16,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:01:16,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993697963] [2023-04-02 03:01:16,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:16,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:01:16,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:16,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:01:16,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:01:16,157 INFO L87 Difference]: Start difference. First operand 1562 states and 2479 transitions. Second operand has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) [2023-04-02 03:01:27,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:27,432 INFO L93 Difference]: Finished difference Result 4389 states and 7871 transitions. [2023-04-02 03:01:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:01:27,433 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) Word has length 131 [2023-04-02 03:01:27,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:27,450 INFO L225 Difference]: With dead ends: 4389 [2023-04-02 03:01:27,450 INFO L226 Difference]: Without dead ends: 2913 [2023-04-02 03:01:27,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:01:27,457 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 1445 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 8950 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 9562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 8950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:27,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1214 Invalid, 9562 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [612 Valid, 8950 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-04-02 03:01:27,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2023-04-02 03:01:28,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 1565. [2023-04-02 03:01:28,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1156 states have (on average 1.5778546712802768) internal successors, (1824), 1215 states have internal predecessors, (1824), 294 states have call successors, (294), 105 states have call predecessors, (294), 114 states have return successors, (365), 280 states have call predecessors, (365), 286 states have call successors, (365) [2023-04-02 03:01:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2483 transitions. [2023-04-02 03:01:28,152 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2483 transitions. Word has length 131 [2023-04-02 03:01:28,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:28,153 INFO L495 AbstractCegarLoop]: Abstraction has 1565 states and 2483 transitions. [2023-04-02 03:01:28,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) [2023-04-02 03:01:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2483 transitions. [2023-04-02 03:01:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-02 03:01:28,157 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:28,157 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:28,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 03:01:28,158 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:28,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:28,158 INFO L85 PathProgramCache]: Analyzing trace with hash 364348617, now seen corresponding path program 1 times [2023-04-02 03:01:28,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:28,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523120140] [2023-04-02 03:01:28,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:28,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:01:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:01:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:01:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:01:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:28,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:28,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523120140] [2023-04-02 03:01:28,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523120140] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:28,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:28,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:01:28,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879856591] [2023-04-02 03:01:28,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:28,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:01:28,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:28,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:01:28,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:01:28,952 INFO L87 Difference]: Start difference. First operand 1565 states and 2483 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:01:38,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:38,743 INFO L93 Difference]: Finished difference Result 4377 states and 7855 transitions. [2023-04-02 03:01:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:01:38,744 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 132 [2023-04-02 03:01:38,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:38,758 INFO L225 Difference]: With dead ends: 4377 [2023-04-02 03:01:38,758 INFO L226 Difference]: Without dead ends: 2897 [2023-04-02 03:01:38,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:01:38,764 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 2508 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 7255 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2599 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 8372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 7255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:38,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2599 Valid, 1030 Invalid, 8372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1117 Valid, 7255 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-04-02 03:01:38,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2023-04-02 03:01:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 1565. [2023-04-02 03:01:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1156 states have (on average 1.5735294117647058) internal successors, (1819), 1215 states have internal predecessors, (1819), 294 states have call successors, (294), 105 states have call predecessors, (294), 114 states have return successors, (365), 280 states have call predecessors, (365), 286 states have call successors, (365) [2023-04-02 03:01:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2478 transitions. [2023-04-02 03:01:39,445 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2478 transitions. Word has length 132 [2023-04-02 03:01:39,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:39,446 INFO L495 AbstractCegarLoop]: Abstraction has 1565 states and 2478 transitions. [2023-04-02 03:01:39,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:01:39,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2478 transitions. [2023-04-02 03:01:39,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-02 03:01:39,449 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:39,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:39,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 03:01:39,449 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:39,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash 76317912, now seen corresponding path program 1 times [2023-04-02 03:01:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:39,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697042924] [2023-04-02 03:01:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:39,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:39,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:39,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:01:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:01:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:01:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:40,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:40,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697042924] [2023-04-02 03:01:40,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697042924] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:40,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:40,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 03:01:40,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281121025] [2023-04-02 03:01:40,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:40,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 03:01:40,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:40,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 03:01:40,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 03:01:40,180 INFO L87 Difference]: Start difference. First operand 1565 states and 2478 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (25), 8 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 03:01:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:49,905 INFO L93 Difference]: Finished difference Result 4542 states and 8433 transitions. [2023-04-02 03:01:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 03:01:49,905 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (25), 8 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 132 [2023-04-02 03:01:49,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:49,919 INFO L225 Difference]: With dead ends: 4542 [2023-04-02 03:01:49,920 INFO L226 Difference]: Without dead ends: 3074 [2023-04-02 03:01:49,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2023-04-02 03:01:49,927 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 2596 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 5370 mSolverCounterSat, 1131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 6501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1131 IncrementalHoareTripleChecker+Valid, 5370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:49,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 770 Invalid, 6501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1131 Valid, 5370 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 03:01:49,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2023-04-02 03:01:50,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 1577. [2023-04-02 03:01:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1165 states have (on average 1.569098712446352) internal successors, (1828), 1224 states have internal predecessors, (1828), 294 states have call successors, (294), 105 states have call predecessors, (294), 117 states have return successors, (370), 283 states have call predecessors, (370), 286 states have call successors, (370) [2023-04-02 03:01:50,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2492 transitions. [2023-04-02 03:01:50,775 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2492 transitions. Word has length 132 [2023-04-02 03:01:50,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:50,775 INFO L495 AbstractCegarLoop]: Abstraction has 1577 states and 2492 transitions. [2023-04-02 03:01:50,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (25), 8 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 03:01:50,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2492 transitions. [2023-04-02 03:01:50,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 03:01:50,778 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:50,778 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:50,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 03:01:50,779 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:50,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:50,779 INFO L85 PathProgramCache]: Analyzing trace with hash 367467768, now seen corresponding path program 1 times [2023-04-02 03:01:50,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:50,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104425013] [2023-04-02 03:01:50,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:50,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:01:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:01:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:51,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:51,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104425013] [2023-04-02 03:01:51,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104425013] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:51,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:51,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:01:51,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489021968] [2023-04-02 03:01:51,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:51,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:01:51,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:01:51,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:01:51,555 INFO L87 Difference]: Start difference. First operand 1577 states and 2492 transitions. Second operand has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-02 03:02:01,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:01,975 INFO L93 Difference]: Finished difference Result 4417 states and 7905 transitions. [2023-04-02 03:02:01,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:02:01,976 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) Word has length 139 [2023-04-02 03:02:01,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:01,990 INFO L225 Difference]: With dead ends: 4417 [2023-04-02 03:02:01,991 INFO L226 Difference]: Without dead ends: 2929 [2023-04-02 03:02:01,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:02:01,996 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 3435 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 8129 mSolverCounterSat, 1436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 9565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1436 IncrementalHoareTripleChecker+Valid, 8129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:01,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3527 Valid, 1117 Invalid, 9565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1436 Valid, 8129 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 03:02:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2023-04-02 03:02:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 1580. [2023-04-02 03:02:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1166 states have (on average 1.5686106346483706) internal successors, (1829), 1227 states have internal predecessors, (1829), 295 states have call successors, (295), 105 states have call predecessors, (295), 118 states have return successors, (372), 283 states have call predecessors, (372), 287 states have call successors, (372) [2023-04-02 03:02:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2496 transitions. [2023-04-02 03:02:02,683 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2496 transitions. Word has length 139 [2023-04-02 03:02:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:02,684 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 2496 transitions. [2023-04-02 03:02:02,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-02 03:02:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2496 transitions. [2023-04-02 03:02:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 03:02:02,688 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:02,688 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:02,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 03:02:02,688 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:02,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1545215512, now seen corresponding path program 1 times [2023-04-02 03:02:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:02,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706661731] [2023-04-02 03:02:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:02:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:02:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:02:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:02:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:02:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:02:03,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:03,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706661731] [2023-04-02 03:02:03,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706661731] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:03,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:03,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:02:03,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103108860] [2023-04-02 03:02:03,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:03,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:02:03,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:03,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:02:03,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:02:03,857 INFO L87 Difference]: Start difference. First operand 1580 states and 2496 transitions. Second operand has 19 states, 17 states have (on average 5.176470588235294) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (22), 8 states have call predecessors, (22), 6 states have call successors, (22) [2023-04-02 03:02:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:24,850 INFO L93 Difference]: Finished difference Result 5368 states and 9863 transitions. [2023-04-02 03:02:24,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-04-02 03:02:24,851 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.176470588235294) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (22), 8 states have call predecessors, (22), 6 states have call successors, (22) Word has length 140 [2023-04-02 03:02:24,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:24,872 INFO L225 Difference]: With dead ends: 5368 [2023-04-02 03:02:24,872 INFO L226 Difference]: Without dead ends: 3887 [2023-04-02 03:02:24,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=539, Invalid=2113, Unknown=0, NotChecked=0, Total=2652 [2023-04-02 03:02:24,880 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 8316 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 15192 mSolverCounterSat, 5169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8318 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 20361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5169 IncrementalHoareTripleChecker+Valid, 15192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:24,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8318 Valid, 1598 Invalid, 20361 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5169 Valid, 15192 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2023-04-02 03:02:24,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3887 states. [2023-04-02 03:02:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3887 to 2025. [2023-04-02 03:02:25,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2025 states, 1470 states have (on average 1.5727891156462586) internal successors, (2312), 1548 states have internal predecessors, (2312), 406 states have call successors, (406), 129 states have call predecessors, (406), 148 states have return successors, (504), 400 states have call predecessors, (504), 398 states have call successors, (504) [2023-04-02 03:02:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 3222 transitions. [2023-04-02 03:02:25,864 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 3222 transitions. Word has length 140 [2023-04-02 03:02:25,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:25,864 INFO L495 AbstractCegarLoop]: Abstraction has 2025 states and 3222 transitions. [2023-04-02 03:02:25,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.176470588235294) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (22), 8 states have call predecessors, (22), 6 states have call successors, (22) [2023-04-02 03:02:25,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 3222 transitions. [2023-04-02 03:02:25,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 03:02:25,870 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:25,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:25,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 03:02:25,870 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:25,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2048201727, now seen corresponding path program 1 times [2023-04-02 03:02:25,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:25,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25532635] [2023-04-02 03:02:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:25,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:02:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:02:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:02:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:02:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:02:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:26,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:02:26,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:26,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25532635] [2023-04-02 03:02:26,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25532635] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:26,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:26,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:02:26,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076612748] [2023-04-02 03:02:26,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:26,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:02:26,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:26,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:02:26,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:02:26,656 INFO L87 Difference]: Start difference. First operand 2025 states and 3222 transitions. Second operand has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-02 03:02:38,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:38,385 INFO L93 Difference]: Finished difference Result 5366 states and 9827 transitions. [2023-04-02 03:02:38,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:02:38,386 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) Word has length 140 [2023-04-02 03:02:38,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:38,409 INFO L225 Difference]: With dead ends: 5366 [2023-04-02 03:02:38,409 INFO L226 Difference]: Without dead ends: 3878 [2023-04-02 03:02:38,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:02:38,416 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 2487 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 8217 mSolverCounterSat, 1112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 9329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1112 IncrementalHoareTripleChecker+Valid, 8217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:38,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2581 Valid, 1087 Invalid, 9329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1112 Valid, 8217 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 03:02:38,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2023-04-02 03:02:39,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 2028. [2023-04-02 03:02:39,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1471 states have (on average 1.5723997280761386) internal successors, (2313), 1551 states have internal predecessors, (2313), 407 states have call successors, (407), 129 states have call predecessors, (407), 149 states have return successors, (506), 400 states have call predecessors, (506), 399 states have call successors, (506) [2023-04-02 03:02:39,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 3226 transitions. [2023-04-02 03:02:39,444 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 3226 transitions. Word has length 140 [2023-04-02 03:02:39,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:39,444 INFO L495 AbstractCegarLoop]: Abstraction has 2028 states and 3226 transitions. [2023-04-02 03:02:39,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-02 03:02:39,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 3226 transitions. [2023-04-02 03:02:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-02 03:02:39,449 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:39,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:39,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 03:02:39,449 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:39,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:39,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1551378659, now seen corresponding path program 1 times [2023-04-02 03:02:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:39,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479162717] [2023-04-02 03:02:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:39,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:39,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 03:02:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:02:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:02:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:02:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:02:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:02:40,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:40,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479162717] [2023-04-02 03:02:40,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479162717] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:40,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:40,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:02:40,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59066172] [2023-04-02 03:02:40,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:40,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:02:40,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:40,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:02:40,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:02:40,319 INFO L87 Difference]: Start difference. First operand 2028 states and 3226 transitions. Second operand has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22)