/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_spec3_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 03:06:26,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 03:06:26,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 03:06:26,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 03:06:26,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 03:06:26,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 03:06:26,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 03:06:26,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 03:06:26,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 03:06:26,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 03:06:26,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 03:06:26,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 03:06:26,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 03:06:26,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 03:06:26,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 03:06:26,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 03:06:26,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 03:06:26,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 03:06:26,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 03:06:26,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 03:06:26,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 03:06:26,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 03:06:26,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 03:06:26,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 03:06:26,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 03:06:26,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 03:06:26,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 03:06:26,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 03:06:26,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 03:06:26,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 03:06:26,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 03:06:26,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 03:06:26,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 03:06:26,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 03:06:26,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 03:06:26,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 03:06:26,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 03:06:26,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 03:06:26,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 03:06:26,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 03:06:26,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 03:06:26,529 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 03:06:26,551 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 03:06:26,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 03:06:26,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 03:06:26,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 03:06:26,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 03:06:26,552 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 03:06:26,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 03:06:26,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 03:06:26,553 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 03:06:26,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 03:06:26,553 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 03:06:26,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 03:06:26,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 03:06:26,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 03:06:26,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 03:06:26,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 03:06:26,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:06:26,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 03:06:26,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 03:06:26,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 03:06:26,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 03:06:26,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 03:06:26,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 03:06:26,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 03:06:26,555 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 03:06:26,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 03:06:26,556 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 03:06:26,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 03:06:26,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 03:06:26,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 03:06:26,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 03:06:26,757 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 03:06:26,758 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 03:06:26,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product21.cil.c [2023-04-02 03:06:27,804 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 03:06:28,031 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 03:06:28,031 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product21.cil.c [2023-04-02 03:06:28,049 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bffe93f/cf0e12d8898d47d78df9da371c758130/FLAGc0bfe2ab2 [2023-04-02 03:06:28,061 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bffe93f/cf0e12d8898d47d78df9da371c758130 [2023-04-02 03:06:28,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 03:06:28,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 03:06:28,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 03:06:28,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 03:06:28,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 03:06:28,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78afcfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28, skipping insertion in model container [2023-04-02 03:06:28,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 03:06:28,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 03:06:28,471 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_spec3_product21.cil.c[62420,62433] [2023-04-02 03:06:28,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:06:28,530 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 03:06:28,604 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_spec3_product21.cil.c[62420,62433] [2023-04-02 03:06:28,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:06:28,655 INFO L208 MainTranslator]: Completed translation [2023-04-02 03:06:28,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28 WrapperNode [2023-04-02 03:06:28,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 03:06:28,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 03:06:28,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 03:06:28,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 03:06:28,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,775 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 03:06:28,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 03:06:28,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 03:06:28,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 03:06:28,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (1/1) ... [2023-04-02 03:06:28,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:06:28,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:06:28,824 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 03:06:28,834 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 03:06:28,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 03:06:28,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 03:06:28,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 03:06:28,870 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 03:06:28,870 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 03:06:28,870 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 03:06:28,870 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 03:06:28,870 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 03:06:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 03:06:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 03:06:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 03:06:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 03:06:28,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 03:06:28,875 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 03:06:28,875 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 03:06:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 03:06:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 03:06:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 03:06:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 03:06:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 03:06:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 03:06:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 03:06:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 03:06:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 03:06:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2023-04-02 03:06:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 03:06:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 03:06:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 03:06:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 03:06:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 03:06:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 03:06:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 03:06:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 03:06:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 03:06:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 03:06:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 03:06:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 03:06:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 03:06:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 03:06:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 03:06:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 03:06:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 03:06:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 03:06:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 03:06:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 03:06:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 03:06:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 03:06:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 03:06:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 03:06:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 03:06:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 03:06:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 03:06:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 03:06:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 03:06:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 03:06:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 03:06:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 03:06:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 03:06:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 03:06:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 03:06:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 03:06:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 03:06:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 03:06:29,147 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 03:06:29,150 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 03:06:30,174 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 03:06:30,189 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 03:06:30,189 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 03:06:30,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:06:30 BoogieIcfgContainer [2023-04-02 03:06:30,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 03:06:30,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 03:06:30,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 03:06:30,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 03:06:30,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 03:06:28" (1/3) ... [2023-04-02 03:06:30,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217347e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:06:30, skipping insertion in model container [2023-04-02 03:06:30,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:06:28" (2/3) ... [2023-04-02 03:06:30,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217347e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:06:30, skipping insertion in model container [2023-04-02 03:06:30,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:06:30" (3/3) ... [2023-04-02 03:06:30,201 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product21.cil.c [2023-04-02 03:06:30,213 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 03:06:30,214 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 03:06:30,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 03:06:30,275 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;@31968cb5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 03:06:30,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 03:06:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 793 states, 548 states have (on average 1.6240875912408759) internal successors, (890), 571 states have internal predecessors, (890), 181 states have call successors, (181), 50 states have call predecessors, (181), 50 states have return successors, (181), 175 states have call predecessors, (181), 181 states have call successors, (181) [2023-04-02 03:06:30,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-02 03:06:30,309 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:06:30,310 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 03:06:30,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:06:30,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:06:30,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1766273158, now seen corresponding path program 1 times [2023-04-02 03:06:30,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:06:30,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417730238] [2023-04-02 03:06:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:06:30,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:06:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:06:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:06:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:06:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:06:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:06:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:06:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:06:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:06:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:06:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 03:06:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:06:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 03:06:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:06:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:06:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 03:06:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:06:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 03:06:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 03:06:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:06:31,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:06:31,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417730238] [2023-04-02 03:06:31,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417730238] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:06:31,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:06:31,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:06:31,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915439394] [2023-04-02 03:06:31,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:06:31,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:06:31,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:06:31,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:06:31,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:06:31,639 INFO L87 Difference]: Start difference. First operand has 793 states, 548 states have (on average 1.6240875912408759) internal successors, (890), 571 states have internal predecessors, (890), 181 states have call successors, (181), 50 states have call predecessors, (181), 50 states have return successors, (181), 175 states have call predecessors, (181), 181 states have call successors, (181) Second operand has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:06:40,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:06:40,593 INFO L93 Difference]: Finished difference Result 1637 states and 2881 transitions. [2023-04-02 03:06:40,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 03:06:40,614 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 132 [2023-04-02 03:06:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:06:40,647 INFO L225 Difference]: With dead ends: 1637 [2023-04-02 03:06:40,647 INFO L226 Difference]: Without dead ends: 998 [2023-04-02 03:06:40,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2023-04-02 03:06:40,658 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 3084 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 7702 mSolverCounterSat, 1232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3169 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 8934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1232 IncrementalHoareTripleChecker+Valid, 7702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:06:40,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3169 Valid, 911 Invalid, 8934 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1232 Valid, 7702 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-04-02 03:06:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2023-04-02 03:06:40,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 639. [2023-04-02 03:06:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 465 states have (on average 1.6451612903225807) internal successors, (765), 483 states have internal predecessors, (765), 129 states have call successors, (129), 47 states have call predecessors, (129), 44 states have return successors, (125), 120 states have call predecessors, (125), 123 states have call successors, (125) [2023-04-02 03:06:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 1019 transitions. [2023-04-02 03:06:40,899 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 1019 transitions. Word has length 132 [2023-04-02 03:06:40,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:06:40,899 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 1019 transitions. [2023-04-02 03:06:40,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:06:40,900 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 1019 transitions. [2023-04-02 03:06:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-02 03:06:40,906 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:06:40,906 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] [2023-04-02 03:06:40,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 03:06:40,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:06:40,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:06:40,907 INFO L85 PathProgramCache]: Analyzing trace with hash 581607352, now seen corresponding path program 1 times [2023-04-02 03:06:40,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:06:40,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117870055] [2023-04-02 03:06:40,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:06:40,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:06:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:06:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:06:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:06:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:06:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:06:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:06:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:06:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:06:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:06:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 03:06:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:06:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 03:06:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:06:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:06:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 03:06:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:06:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 03:06:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:06:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:06:41,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:06:41,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117870055] [2023-04-02 03:06:41,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117870055] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:06:41,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:06:41,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 03:06:41,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995085950] [2023-04-02 03:06:41,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:06:41,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 03:06:41,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:06:41,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 03:06:41,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 03:06:41,554 INFO L87 Difference]: Start difference. First operand 639 states and 1019 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 03:06:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:06:48,848 INFO L93 Difference]: Finished difference Result 1597 states and 2759 transitions. [2023-04-02 03:06:48,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 03:06:48,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 133 [2023-04-02 03:06:48,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:06:48,856 INFO L225 Difference]: With dead ends: 1597 [2023-04-02 03:06:48,856 INFO L226 Difference]: Without dead ends: 969 [2023-04-02 03:06:48,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:06:48,865 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1819 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 4727 mSolverCounterSat, 706 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 5433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 706 IncrementalHoareTripleChecker+Valid, 4727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 03:06:48,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 486 Invalid, 5433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [706 Valid, 4727 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 03:06:48,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2023-04-02 03:06:49,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 621. [2023-04-02 03:06:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 451 states have (on average 1.6363636363636365) internal successors, (738), 467 states have internal predecessors, (738), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:06:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 986 transitions. [2023-04-02 03:06:49,022 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 986 transitions. Word has length 133 [2023-04-02 03:06:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:06:49,023 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 986 transitions. [2023-04-02 03:06:49,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 03:06:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 986 transitions. [2023-04-02 03:06:49,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-02 03:06:49,025 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:06:49,026 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] [2023-04-02 03:06:49,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 03:06:49,026 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:06:49,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:06:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash 200488178, now seen corresponding path program 1 times [2023-04-02 03:06:49,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:06:49,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623742515] [2023-04-02 03:06:49,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:06:49,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:06:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:06:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:06:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:06:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:06:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:06:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:06:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:06:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:06:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 03:06:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 03:06:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:06:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 03:06:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:06:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:06:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 03:06:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:06:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 03:06:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:06:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:49,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:06:49,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:06:49,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623742515] [2023-04-02 03:06:49,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623742515] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:06:49,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:06:49,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:06:49,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864982874] [2023-04-02 03:06:49,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:06:49,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:06:49,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:06:49,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:06:49,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:06:49,733 INFO L87 Difference]: Start difference. First operand 621 states and 986 transitions. Second operand has 14 states, 13 states have (on average 6.0) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:06:59,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:06:59,174 INFO L93 Difference]: Finished difference Result 1560 states and 2695 transitions. [2023-04-02 03:06:59,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 03:06:59,175 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.0) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 133 [2023-04-02 03:06:59,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:06:59,180 INFO L225 Difference]: With dead ends: 1560 [2023-04-02 03:06:59,180 INFO L226 Difference]: Without dead ends: 969 [2023-04-02 03:06:59,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:06:59,188 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1810 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 8984 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 9723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 8984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:06:59,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 910 Invalid, 9723 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [739 Valid, 8984 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-04-02 03:06:59,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2023-04-02 03:06:59,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 621. [2023-04-02 03:06:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 451 states have (on average 1.6341463414634145) internal successors, (737), 467 states have internal predecessors, (737), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:06:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 985 transitions. [2023-04-02 03:06:59,339 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 985 transitions. Word has length 133 [2023-04-02 03:06:59,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:06:59,340 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 985 transitions. [2023-04-02 03:06:59,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.0) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:06:59,340 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 985 transitions. [2023-04-02 03:06:59,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-04-02 03:06:59,342 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:06:59,342 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] [2023-04-02 03:06:59,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 03:06:59,342 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:06:59,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:06:59,343 INFO L85 PathProgramCache]: Analyzing trace with hash -116477052, now seen corresponding path program 1 times [2023-04-02 03:06:59,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:06:59,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749518087] [2023-04-02 03:06:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:06:59,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:06:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:06:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:06:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:06:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:06:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:06:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:06:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:06:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:06:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 03:06:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 03:06:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:06:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 03:06:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:06:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:06:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 03:06:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:06:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:06:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 03:06:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 03:06:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:06:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:06:59,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:06:59,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749518087] [2023-04-02 03:06:59,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749518087] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:06:59,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:06:59,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:06:59,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707153020] [2023-04-02 03:06:59,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:06:59,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:06:59,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:06:59,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:06:59,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:06:59,995 INFO L87 Difference]: Start difference. First operand 621 states and 985 transitions. Second operand has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:08,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:07:08,451 INFO L93 Difference]: Finished difference Result 1566 states and 2701 transitions. [2023-04-02 03:07:08,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 03:07:08,452 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 134 [2023-04-02 03:07:08,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:07:08,458 INFO L225 Difference]: With dead ends: 1566 [2023-04-02 03:07:08,458 INFO L226 Difference]: Without dead ends: 963 [2023-04-02 03:07:08,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2023-04-02 03:07:08,461 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 3554 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 7416 mSolverCounterSat, 1474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3637 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 8890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1474 IncrementalHoareTripleChecker+Valid, 7416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:07:08,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3637 Valid, 763 Invalid, 8890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1474 Valid, 7416 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-04-02 03:07:08,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-04-02 03:07:08,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 615. [2023-04-02 03:07:08,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 445 states have (on average 1.6269662921348316) internal successors, (724), 461 states have internal predecessors, (724), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:07:08,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 972 transitions. [2023-04-02 03:07:08,609 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 972 transitions. Word has length 134 [2023-04-02 03:07:08,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:07:08,609 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 972 transitions. [2023-04-02 03:07:08,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:08,609 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 972 transitions. [2023-04-02 03:07:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-04-02 03:07:08,611 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:07:08,611 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] [2023-04-02 03:07:08,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 03:07:08,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:07:08,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:07:08,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2126940180, now seen corresponding path program 1 times [2023-04-02 03:07:08,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:07:08,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95603159] [2023-04-02 03:07:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:07:08,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:07:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:08,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:07:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:07:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:08,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:07:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:08,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:07:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:07:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:07:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 03:07:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 03:07:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 03:07:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:07:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 03:07:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:07:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 03:07:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 03:07:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:09,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:07:09,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:07:09,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95603159] [2023-04-02 03:07:09,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95603159] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:07:09,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:07:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:07:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806841329] [2023-04-02 03:07:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:07:09,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:07:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:07:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:07:09,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:07:09,290 INFO L87 Difference]: Start difference. First operand 615 states and 972 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:07:18,373 INFO L93 Difference]: Finished difference Result 1548 states and 2667 transitions. [2023-04-02 03:07:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 03:07:18,374 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 135 [2023-04-02 03:07:18,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:07:18,378 INFO L225 Difference]: With dead ends: 1548 [2023-04-02 03:07:18,379 INFO L226 Difference]: Without dead ends: 963 [2023-04-02 03:07:18,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:07:18,381 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 1446 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 8783 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 9372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 8783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:07:18,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 875 Invalid, 9372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [589 Valid, 8783 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-04-02 03:07:18,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-04-02 03:07:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 615. [2023-04-02 03:07:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 445 states have (on average 1.6247191011235955) internal successors, (723), 461 states have internal predecessors, (723), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:07:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 971 transitions. [2023-04-02 03:07:18,512 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 971 transitions. Word has length 135 [2023-04-02 03:07:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:07:18,513 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 971 transitions. [2023-04-02 03:07:18,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:18,513 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 971 transitions. [2023-04-02 03:07:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-04-02 03:07:18,515 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:07:18,515 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] [2023-04-02 03:07:18,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 03:07:18,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:07:18,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:07:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash 155785959, now seen corresponding path program 1 times [2023-04-02 03:07:18,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:07:18,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260553393] [2023-04-02 03:07:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:07:18,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:07:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:18,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:07:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:18,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:07:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:18,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:07:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:18,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:07:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:07:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:07:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 03:07:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 03:07:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 03:07:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:07:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 03:07:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:07:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 03:07:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 03:07:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:07:19,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:07:19,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260553393] [2023-04-02 03:07:19,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260553393] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:07:19,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:07:19,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:07:19,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567609242] [2023-04-02 03:07:19,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:07:19,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:07:19,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:07:19,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:07:19,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:07:19,199 INFO L87 Difference]: Start difference. First operand 615 states and 971 transitions. Second operand has 13 states, 12 states have (on average 6.75) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:27,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:07:27,315 INFO L93 Difference]: Finished difference Result 1554 states and 2673 transitions. [2023-04-02 03:07:27,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 03:07:27,315 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 136 [2023-04-02 03:07:27,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:07:27,320 INFO L225 Difference]: With dead ends: 1554 [2023-04-02 03:07:27,320 INFO L226 Difference]: Without dead ends: 957 [2023-04-02 03:07:27,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2023-04-02 03:07:27,322 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 2935 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 7405 mSolverCounterSat, 1238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3018 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 8643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1238 IncrementalHoareTripleChecker+Valid, 7405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:07:27,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3018 Valid, 796 Invalid, 8643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1238 Valid, 7405 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 03:07:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-04-02 03:07:27,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 609. [2023-04-02 03:07:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 439 states have (on average 1.6173120728929384) internal successors, (710), 455 states have internal predecessors, (710), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:07:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 958 transitions. [2023-04-02 03:07:27,476 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 958 transitions. Word has length 136 [2023-04-02 03:07:27,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:07:27,477 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 958 transitions. [2023-04-02 03:07:27,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 958 transitions. [2023-04-02 03:07:27,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-02 03:07:27,479 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:07:27,479 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] [2023-04-02 03:07:27,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 03:07:27,479 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:07:27,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:07:27,480 INFO L85 PathProgramCache]: Analyzing trace with hash -506841901, now seen corresponding path program 1 times [2023-04-02 03:07:27,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:07:27,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575365795] [2023-04-02 03:07:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:07:27,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:07:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:07:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:07:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:07:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:07:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:07:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:07:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 03:07:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 03:07:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:07:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 03:07:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:07:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 03:07:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 03:07:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:07:28,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:07:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575365795] [2023-04-02 03:07:28,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575365795] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:07:28,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:07:28,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:07:28,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545337381] [2023-04-02 03:07:28,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:07:28,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:07:28,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:07:28,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:07:28,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:07:28,098 INFO L87 Difference]: Start difference. First operand 609 states and 958 transitions. Second operand has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:36,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:07:36,458 INFO L93 Difference]: Finished difference Result 1536 states and 2639 transitions. [2023-04-02 03:07:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 03:07:36,459 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 137 [2023-04-02 03:07:36,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:07:36,465 INFO L225 Difference]: With dead ends: 1536 [2023-04-02 03:07:36,466 INFO L226 Difference]: Without dead ends: 957 [2023-04-02 03:07:36,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:07:36,469 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1786 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 8787 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 9538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 8787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:07:36,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 934 Invalid, 9538 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [751 Valid, 8787 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-04-02 03:07:36,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-04-02 03:07:36,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 609. [2023-04-02 03:07:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 439 states have (on average 1.6150341685649203) internal successors, (709), 455 states have internal predecessors, (709), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:07:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 957 transitions. [2023-04-02 03:07:36,634 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 957 transitions. Word has length 137 [2023-04-02 03:07:36,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:07:36,634 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 957 transitions. [2023-04-02 03:07:36,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:36,634 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 957 transitions. [2023-04-02 03:07:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-04-02 03:07:36,636 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:07:36,636 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] [2023-04-02 03:07:36,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 03:07:36,637 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:07:36,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:07:36,637 INFO L85 PathProgramCache]: Analyzing trace with hash 794713165, now seen corresponding path program 1 times [2023-04-02 03:07:36,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:07:36,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888443972] [2023-04-02 03:07:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:07:36,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:07:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:36,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:07:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:36,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:07:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:07:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:07:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:07:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:07:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 03:07:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 03:07:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:07:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 03:07:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:07:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 03:07:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 03:07:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:07:37,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:07:37,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888443972] [2023-04-02 03:07:37,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888443972] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:07:37,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:07:37,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:07:37,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113978947] [2023-04-02 03:07:37,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:07:37,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:07:37,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:07:37,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:07:37,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:07:37,272 INFO L87 Difference]: Start difference. First operand 609 states and 957 transitions. Second operand has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:45,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:07:45,797 INFO L93 Difference]: Finished difference Result 1542 states and 2645 transitions. [2023-04-02 03:07:45,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 03:07:45,798 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 138 [2023-04-02 03:07:45,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:07:45,802 INFO L225 Difference]: With dead ends: 1542 [2023-04-02 03:07:45,802 INFO L226 Difference]: Without dead ends: 951 [2023-04-02 03:07:45,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2023-04-02 03:07:45,804 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1290 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 7796 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 8338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 7796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:07:45,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 767 Invalid, 8338 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [542 Valid, 7796 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 03:07:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-04-02 03:07:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 603. [2023-04-02 03:07:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 433 states have (on average 1.6073903002309469) internal successors, (696), 449 states have internal predecessors, (696), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:07:45,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 944 transitions. [2023-04-02 03:07:45,950 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 944 transitions. Word has length 138 [2023-04-02 03:07:45,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:07:45,950 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 944 transitions. [2023-04-02 03:07:45,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:45,951 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 944 transitions. [2023-04-02 03:07:45,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-04-02 03:07:45,953 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:07:45,953 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] [2023-04-02 03:07:45,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 03:07:45,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:07:45,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:07:45,953 INFO L85 PathProgramCache]: Analyzing trace with hash 760405262, now seen corresponding path program 1 times [2023-04-02 03:07:45,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:07:45,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621473222] [2023-04-02 03:07:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:07:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:07:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:07:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:07:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:07:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:07:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:07:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:07:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 03:07:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 03:07:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:07:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 03:07:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:07:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 03:07:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 03:07:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:46,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:07:46,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:07:46,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621473222] [2023-04-02 03:07:46,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621473222] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:07:46,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:07:46,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:07:46,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477313664] [2023-04-02 03:07:46,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:07:46,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:07:46,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:07:46,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:07:46,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:07:46,512 INFO L87 Difference]: Start difference. First operand 603 states and 944 transitions. Second operand has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:55,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:07:55,474 INFO L93 Difference]: Finished difference Result 1524 states and 2611 transitions. [2023-04-02 03:07:55,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 03:07:55,474 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 138 [2023-04-02 03:07:55,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:07:55,483 INFO L225 Difference]: With dead ends: 1524 [2023-04-02 03:07:55,483 INFO L226 Difference]: Without dead ends: 951 [2023-04-02 03:07:55,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:07:55,485 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1235 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 8906 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 9477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 8906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:07:55,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 895 Invalid, 9477 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [571 Valid, 8906 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-04-02 03:07:55,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-04-02 03:07:55,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 603. [2023-04-02 03:07:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 433 states have (on average 1.6050808314087759) internal successors, (695), 449 states have internal predecessors, (695), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:07:55,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 943 transitions. [2023-04-02 03:07:55,635 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 943 transitions. Word has length 138 [2023-04-02 03:07:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:07:55,635 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 943 transitions. [2023-04-02 03:07:55,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:07:55,635 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 943 transitions. [2023-04-02 03:07:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 03:07:55,637 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:07:55,637 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 03:07:55,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 03:07:55,637 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:07:55,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:07:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2106462647, now seen corresponding path program 1 times [2023-04-02 03:07:55,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:07:55,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959788563] [2023-04-02 03:07:55,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:07:55,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:07:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:55,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:07:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:55,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:07:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:07:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:55,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:07:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:55,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:07:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:07:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 03:07:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:07:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 03:07:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:07:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:07:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 03:07:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:07:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:07:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 03:07:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 03:07:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:07:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:07:56,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:07:56,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959788563] [2023-04-02 03:07:56,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959788563] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:07:56,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:07:56,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:07:56,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321652779] [2023-04-02 03:07:56,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:07:56,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:07:56,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:07:56,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:07:56,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:07:56,176 INFO L87 Difference]: Start difference. First operand 603 states and 943 transitions. Second operand has 14 states, 12 states have (on average 7.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:08:03,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:08:03,988 INFO L93 Difference]: Finished difference Result 1525 states and 2611 transitions. [2023-04-02 03:08:03,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 03:08:03,988 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 139 [2023-04-02 03:08:03,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:08:03,993 INFO L225 Difference]: With dead ends: 1525 [2023-04-02 03:08:03,993 INFO L226 Difference]: Without dead ends: 954 [2023-04-02 03:08:03,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2023-04-02 03:08:03,995 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 2793 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 8323 mSolverCounterSat, 1217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2876 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 9540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1217 IncrementalHoareTripleChecker+Valid, 8323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 03:08:03,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2876 Valid, 920 Invalid, 9540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1217 Valid, 8323 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 03:08:03,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2023-04-02 03:08:04,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 606. [2023-04-02 03:08:04,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 434 states have (on average 1.6036866359447004) internal successors, (696), 452 states have internal predecessors, (696), 128 states have call successors, (128), 47 states have call predecessors, (128), 43 states have return successors, (123), 118 states have call predecessors, (123), 122 states have call successors, (123) [2023-04-02 03:08:04,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 947 transitions. [2023-04-02 03:08:04,184 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 947 transitions. Word has length 139 [2023-04-02 03:08:04,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:08:04,185 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 947 transitions. [2023-04-02 03:08:04,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:08:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 947 transitions. [2023-04-02 03:08:04,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 03:08:04,187 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:08:04,187 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 03:08:04,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 03:08:04,187 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:08:04,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:08:04,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1520186425, now seen corresponding path program 1 times [2023-04-02 03:08:04,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:08:04,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659054361] [2023-04-02 03:08:04,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:04,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:08:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:08:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:08:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:08:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:08:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:08:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 03:08:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 03:08:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 03:08:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:08:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 03:08:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 03:08:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:08:04,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:08:04,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659054361] [2023-04-02 03:08:04,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659054361] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:08:04,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:08:04,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:08:04,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002816856] [2023-04-02 03:08:04,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:08:04,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:08:04,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:08:04,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:08:04,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:08:04,704 INFO L87 Difference]: Start difference. First operand 606 states and 947 transitions. Second operand has 13 states, 12 states have (on average 7.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:08:12,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:08:12,374 INFO L93 Difference]: Finished difference Result 1528 states and 2613 transitions. [2023-04-02 03:08:12,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 03:08:12,375 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 139 [2023-04-02 03:08:12,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:08:12,379 INFO L225 Difference]: With dead ends: 1528 [2023-04-02 03:08:12,379 INFO L226 Difference]: Without dead ends: 951 [2023-04-02 03:08:12,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=211, Invalid=601, Unknown=0, NotChecked=0, Total=812 [2023-04-02 03:08:12,381 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 2316 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 7426 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 8427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 7426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:08:12,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 799 Invalid, 8427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1001 Valid, 7426 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-04-02 03:08:12,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-04-02 03:08:12,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 603. [2023-04-02 03:08:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 433 states have (on average 1.6027713625866051) internal successors, (694), 449 states have internal predecessors, (694), 127 states have call successors, (127), 47 states have call predecessors, (127), 42 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 03:08:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 942 transitions. [2023-04-02 03:08:12,542 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 942 transitions. Word has length 139 [2023-04-02 03:08:12,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:08:12,542 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 942 transitions. [2023-04-02 03:08:12,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-04-02 03:08:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 942 transitions. [2023-04-02 03:08:12,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 03:08:12,544 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:08:12,544 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 03:08:12,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 03:08:12,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:08:12,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:08:12,545 INFO L85 PathProgramCache]: Analyzing trace with hash -878621880, now seen corresponding path program 1 times [2023-04-02 03:08:12,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:08:12,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126848027] [2023-04-02 03:08:12,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:12,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:08:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:12,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:08:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:12,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:12,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:12,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:08:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:12,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:08:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:08:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:08:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:08:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 03:08:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 03:08:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:08:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 03:08:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 03:08:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 03:08:13,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:08:13,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126848027] [2023-04-02 03:08:13,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126848027] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:08:13,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012862898] [2023-04-02 03:08:13,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:13,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:08:13,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:08:13,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:08:13,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 03:08:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:13,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 2733 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 03:08:13,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:08:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:08:13,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:08:13,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012862898] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:08:13,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:08:13,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-04-02 03:08:13,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286030386] [2023-04-02 03:08:13,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:08:13,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:08:13,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:08:13,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:08:13,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:08:13,735 INFO L87 Difference]: Start difference. First operand 603 states and 942 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 03:08:14,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:08:14,046 INFO L93 Difference]: Finished difference Result 1688 states and 2686 transitions. [2023-04-02 03:08:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:08:14,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2023-04-02 03:08:14,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:08:14,052 INFO L225 Difference]: With dead ends: 1688 [2023-04-02 03:08:14,052 INFO L226 Difference]: Without dead ends: 1119 [2023-04-02 03:08:14,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:08:14,054 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 862 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:08:14,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 1774 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:08:14,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2023-04-02 03:08:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1106. [2023-04-02 03:08:14,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 809 states have (on average 1.61557478368356) internal successors, (1307), 840 states have internal predecessors, (1307), 219 states have call successors, (219), 79 states have call predecessors, (219), 77 states have return successors, (221), 210 states have call predecessors, (221), 213 states have call successors, (221) [2023-04-02 03:08:14,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1747 transitions. [2023-04-02 03:08:14,359 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1747 transitions. Word has length 140 [2023-04-02 03:08:14,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:08:14,360 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1747 transitions. [2023-04-02 03:08:14,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 03:08:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1747 transitions. [2023-04-02 03:08:14,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-02 03:08:14,363 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:08:14,363 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 03:08:14,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 03:08:14,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-04-02 03:08:14,572 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:08:14,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:08:14,572 INFO L85 PathProgramCache]: Analyzing trace with hash -679417517, now seen corresponding path program 1 times [2023-04-02 03:08:14,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:08:14,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771969113] [2023-04-02 03:08:14,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:14,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:08:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:08:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:14,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:08:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:14,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:08:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:08:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:08:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:08:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 03:08:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 03:08:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:08:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 03:08:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 03:08:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,203 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 03:08:15,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:08:15,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771969113] [2023-04-02 03:08:15,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771969113] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:08:15,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407320500] [2023-04-02 03:08:15,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:15,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:08:15,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:08:15,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:08:15,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 03:08:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:15,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 2734 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 03:08:15,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:08:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:08:15,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:08:15,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407320500] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:08:15,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:08:15,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-04-02 03:08:15,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307596083] [2023-04-02 03:08:15,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:08:15,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:08:15,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:08:15,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:08:15,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:08:15,663 INFO L87 Difference]: Start difference. First operand 1106 states and 1747 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 03:08:16,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:08:16,107 INFO L93 Difference]: Finished difference Result 2694 states and 4298 transitions. [2023-04-02 03:08:16,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:08:16,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 141 [2023-04-02 03:08:16,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:08:16,115 INFO L225 Difference]: With dead ends: 2694 [2023-04-02 03:08:16,115 INFO L226 Difference]: Without dead ends: 1622 [2023-04-02 03:08:16,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:08:16,118 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 860 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:08:16,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1828 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:08:16,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2023-04-02 03:08:16,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1573. [2023-04-02 03:08:16,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1158 states have (on average 1.6269430051813472) internal successors, (1884), 1204 states have internal predecessors, (1884), 307 states have call successors, (307), 107 states have call predecessors, (307), 107 states have return successors, (314), 297 states have call predecessors, (314), 301 states have call successors, (314) [2023-04-02 03:08:16,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2505 transitions. [2023-04-02 03:08:16,541 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2505 transitions. Word has length 141 [2023-04-02 03:08:16,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:08:16,541 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2505 transitions. [2023-04-02 03:08:16,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 03:08:16,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2505 transitions. [2023-04-02 03:08:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-02 03:08:16,545 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:08:16,545 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2023-04-02 03:08:16,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 03:08:16,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-02 03:08:16,749 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:08:16,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:08:16,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1375010514, now seen corresponding path program 1 times [2023-04-02 03:08:16,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:08:16,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853027776] [2023-04-02 03:08:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:16,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:08:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:08:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:08:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:08:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:08:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:08:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:08:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:08:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 03:08:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 03:08:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:08:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:08:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 03:08:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-02 03:08:17,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:08:17,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853027776] [2023-04-02 03:08:17,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853027776] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:08:17,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002719829] [2023-04-02 03:08:17,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:17,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:08:17,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:08:17,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:08:17,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 03:08:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:17,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:08:17,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:08:17,788 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-02 03:08:17,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:08:17,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002719829] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:08:17,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:08:17,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-04-02 03:08:17,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506070398] [2023-04-02 03:08:17,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:08:17,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:08:17,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:08:17,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:08:17,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:08:17,790 INFO L87 Difference]: Start difference. First operand 1573 states and 2505 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 03:08:18,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:08:18,646 INFO L93 Difference]: Finished difference Result 4636 states and 7502 transitions. [2023-04-02 03:08:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:08:18,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 143 [2023-04-02 03:08:18,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:08:18,658 INFO L225 Difference]: With dead ends: 4636 [2023-04-02 03:08:18,658 INFO L226 Difference]: Without dead ends: 3097 [2023-04-02 03:08:18,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:08:18,663 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 908 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:08:18,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 1880 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:08:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2023-04-02 03:08:19,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3042. [2023-04-02 03:08:19,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 2256 states have (on average 1.635195035460993) internal successors, (3689), 2343 states have internal predecessors, (3689), 583 states have call successors, (583), 195 states have call predecessors, (583), 202 states have return successors, (636), 575 states have call predecessors, (636), 576 states have call successors, (636) [2023-04-02 03:08:19,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4908 transitions. [2023-04-02 03:08:19,532 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4908 transitions. Word has length 143 [2023-04-02 03:08:19,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:08:19,532 INFO L495 AbstractCegarLoop]: Abstraction has 3042 states and 4908 transitions. [2023-04-02 03:08:19,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 03:08:19,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4908 transitions. [2023-04-02 03:08:19,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-02 03:08:19,536 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:08:19,536 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2023-04-02 03:08:19,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 03:08:19,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:08:19,746 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:08:19,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:08:19,747 INFO L85 PathProgramCache]: Analyzing trace with hash 363893264, now seen corresponding path program 1 times [2023-04-02 03:08:19,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:08:19,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334450735] [2023-04-02 03:08:19,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:19,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:08:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:08:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:08:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:08:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:08:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:08:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:08:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:08:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 03:08:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 03:08:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:08:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:08:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 03:08:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-02 03:08:20,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:08:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334450735] [2023-04-02 03:08:20,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334450735] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:08:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709563140] [2023-04-02 03:08:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:20,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:08:20,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:08:20,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:08:20,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 03:08:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:20,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 2750 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 03:08:20,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:08:20,789 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-02 03:08:20,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:08:20,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709563140] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:08:20,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:08:20,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-04-02 03:08:20,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63111769] [2023-04-02 03:08:20,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:08:20,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:08:20,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:08:20,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:08:20,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:08:20,791 INFO L87 Difference]: Start difference. First operand 3042 states and 4908 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 03:08:22,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:08:22,582 INFO L93 Difference]: Finished difference Result 8799 states and 14410 transitions. [2023-04-02 03:08:22,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:08:22,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 143 [2023-04-02 03:08:22,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:08:22,605 INFO L225 Difference]: With dead ends: 8799 [2023-04-02 03:08:22,605 INFO L226 Difference]: Without dead ends: 5791 [2023-04-02 03:08:22,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:08:22,616 INFO L413 NwaCegarLoop]: 1004 mSDtfsCounter, 759 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:08:22,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1857 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 03:08:22,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5791 states. [2023-04-02 03:08:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5791 to 5748. [2023-04-02 03:08:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 4254 states have (on average 1.6050775740479548) internal successors, (6828), 4423 states have internal predecessors, (6828), 1104 states have call successors, (1104), 374 states have call predecessors, (1104), 389 states have return successors, (1271), 1094 states have call predecessors, (1271), 1095 states have call successors, (1271) [2023-04-02 03:08:24,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 9203 transitions. [2023-04-02 03:08:24,346 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 9203 transitions. Word has length 143 [2023-04-02 03:08:24,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:08:24,347 INFO L495 AbstractCegarLoop]: Abstraction has 5748 states and 9203 transitions. [2023-04-02 03:08:24,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 03:08:24,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 9203 transitions. [2023-04-02 03:08:24,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-02 03:08:24,350 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:08:24,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1] [2023-04-02 03:08:24,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 03:08:24,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-02 03:08:24,551 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:08:24,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:08:24,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1207966157, now seen corresponding path program 1 times [2023-04-02 03:08:24,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:08:24,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879363342] [2023-04-02 03:08:24,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:24,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:08:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:24,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:08:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:08:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:08:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:24,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:08:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:08:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:08:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:08:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 03:08:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 03:08:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 03:08:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 03:08:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-02 03:08:25,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:08:25,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879363342] [2023-04-02 03:08:25,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879363342] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:08:25,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448530159] [2023-04-02 03:08:25,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:25,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:08:25,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:08:25,175 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:08:25,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 03:08:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:25,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 2768 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-02 03:08:25,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:08:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 03:08:25,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:08:25,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448530159] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:08:25,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:08:25,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2023-04-02 03:08:25,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658785843] [2023-04-02 03:08:25,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:08:25,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 03:08:25,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:08:25,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 03:08:25,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:08:25,732 INFO L87 Difference]: Start difference. First operand 5748 states and 9203 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:08:28,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:08:28,166 INFO L93 Difference]: Finished difference Result 11505 states and 18523 transitions. [2023-04-02 03:08:28,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 03:08:28,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 149 [2023-04-02 03:08:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:08:28,189 INFO L225 Difference]: With dead ends: 11505 [2023-04-02 03:08:28,189 INFO L226 Difference]: Without dead ends: 5783 [2023-04-02 03:08:28,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-04-02 03:08:28,205 INFO L413 NwaCegarLoop]: 1015 mSDtfsCounter, 800 mSDsluCounter, 3899 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:08:28,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 4914 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 03:08:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5783 states. [2023-04-02 03:08:29,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5783 to 5764. [2023-04-02 03:08:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5764 states, 4268 states have (on average 1.6044985941893157) internal successors, (6848), 4437 states have internal predecessors, (6848), 1104 states have call successors, (1104), 376 states have call predecessors, (1104), 391 states have return successors, (1271), 1094 states have call predecessors, (1271), 1095 states have call successors, (1271) [2023-04-02 03:08:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5764 states to 5764 states and 9223 transitions. [2023-04-02 03:08:29,999 INFO L78 Accepts]: Start accepts. Automaton has 5764 states and 9223 transitions. Word has length 149 [2023-04-02 03:08:29,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:08:30,000 INFO L495 AbstractCegarLoop]: Abstraction has 5764 states and 9223 transitions. [2023-04-02 03:08:30,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:08:30,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5764 states and 9223 transitions. [2023-04-02 03:08:30,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-02 03:08:30,004 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:08:30,004 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:08:30,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 03:08:30,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-04-02 03:08:30,213 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:08:30,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:08:30,213 INFO L85 PathProgramCache]: Analyzing trace with hash -319599445, now seen corresponding path program 1 times [2023-04-02 03:08:30,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:08:30,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039501428] [2023-04-02 03:08:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:08:30,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:08:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:08:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:08:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:08:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:08:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:08:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:08:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:08:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:08:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:08:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 03:08:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 03:08:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:08:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:08:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:08:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 03:08:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 03:08:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:08:30,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:08:30,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:08:30,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039501428] [2023-04-02 03:08:30,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039501428] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:08:30,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:08:30,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:08:30,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989115450] [2023-04-02 03:08:30,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:08:30,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:08:30,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:08:30,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:08:30,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:08:30,811 INFO L87 Difference]: Start difference. First operand 5764 states and 9223 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (31), 9 states have call predecessors, (31), 4 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 03:08:56,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:08:56,675 INFO L93 Difference]: Finished difference Result 24387 states and 45593 transitions. [2023-04-02 03:08:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-04-02 03:08:56,676 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (31), 9 states have call predecessors, (31), 4 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 150 [2023-04-02 03:08:56,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:08:56,792 INFO L225 Difference]: With dead ends: 24387 [2023-04-02 03:08:56,792 INFO L226 Difference]: Without dead ends: 18657 [2023-04-02 03:08:56,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=383, Invalid=1509, Unknown=0, NotChecked=0, Total=1892 [2023-04-02 03:08:56,817 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 7719 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 14424 mSolverCounterSat, 3609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7725 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 18033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3609 IncrementalHoareTripleChecker+Valid, 14424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:08:56,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7725 Valid, 1195 Invalid, 18033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3609 Valid, 14424 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2023-04-02 03:08:56,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18657 states. [2023-04-02 03:09:02,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18657 to 13649. [2023-04-02 03:09:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13649 states, 9376 states have (on average 1.5636732081911262) internal successors, (14661), 10096 states have internal predecessors, (14661), 3236 states have call successors, (3236), 736 states have call predecessors, (3236), 1036 states have return successors, (5363), 3344 states have call predecessors, (5363), 3223 states have call successors, (5363) [2023-04-02 03:09:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13649 states to 13649 states and 23260 transitions. [2023-04-02 03:09:02,830 INFO L78 Accepts]: Start accepts. Automaton has 13649 states and 23260 transitions. Word has length 150 [2023-04-02 03:09:02,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:09:02,830 INFO L495 AbstractCegarLoop]: Abstraction has 13649 states and 23260 transitions. [2023-04-02 03:09:02,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (31), 9 states have call predecessors, (31), 4 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 03:09:02,830 INFO L276 IsEmpty]: Start isEmpty. Operand 13649 states and 23260 transitions. [2023-04-02 03:09:02,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 03:09:02,835 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:09:02,835 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:09:02,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 03:09:02,835 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:09:02,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:09:02,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1240239498, now seen corresponding path program 1 times [2023-04-02 03:09:02,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:09:02,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190979542] [2023-04-02 03:09:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:09:02,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:09:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:09:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:09:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:09:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:09:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:09:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:09:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:09:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:09:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:09:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:09:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:09:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:09:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 03:09:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:09:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 03:09:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:09:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:09:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 03:09:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:09:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:09:03,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:09:03,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190979542] [2023-04-02 03:09:03,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190979542] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:09:03,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:09:03,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 03:09:03,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019829230] [2023-04-02 03:09:03,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:09:03,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 03:09:03,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:09:03,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 03:09:03,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 03:09:03,303 INFO L87 Difference]: Start difference. First operand 13649 states and 23260 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (31), 8 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-02 03:09:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:09:21,036 INFO L93 Difference]: Finished difference Result 32185 states and 59960 transitions. [2023-04-02 03:09:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:09:21,036 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (31), 8 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 152 [2023-04-02 03:09:21,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:09:21,151 INFO L225 Difference]: With dead ends: 32185 [2023-04-02 03:09:21,152 INFO L226 Difference]: Without dead ends: 18542 [2023-04-02 03:09:21,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=136, Invalid=244, Unknown=0, NotChecked=0, Total=380 [2023-04-02 03:09:21,208 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 2739 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 4537 mSolverCounterSat, 1109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 5646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1109 IncrementalHoareTripleChecker+Valid, 4537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:09:21,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2824 Valid, 631 Invalid, 5646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1109 Valid, 4537 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-04-02 03:09:21,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18542 states. [2023-04-02 03:09:27,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18542 to 13625. [2023-04-02 03:09:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13625 states, 9356 states have (on average 1.5618854211201367) internal successors, (14613), 10072 states have internal predecessors, (14613), 3236 states have call successors, (3236), 744 states have call predecessors, (3236), 1032 states have return successors, (5315), 3336 states have call predecessors, (5315), 3223 states have call successors, (5315) [2023-04-02 03:09:27,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13625 states to 13625 states and 23164 transitions. [2023-04-02 03:09:27,298 INFO L78 Accepts]: Start accepts. Automaton has 13625 states and 23164 transitions. Word has length 152 [2023-04-02 03:09:27,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:09:27,298 INFO L495 AbstractCegarLoop]: Abstraction has 13625 states and 23164 transitions. [2023-04-02 03:09:27,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (31), 8 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-02 03:09:27,298 INFO L276 IsEmpty]: Start isEmpty. Operand 13625 states and 23164 transitions. [2023-04-02 03:09:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 03:09:27,303 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:09:27,303 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:09:27,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 03:09:27,303 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:09:27,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:09:27,303 INFO L85 PathProgramCache]: Analyzing trace with hash 872744967, now seen corresponding path program 1 times [2023-04-02 03:09:27,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:09:27,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003845841] [2023-04-02 03:09:27,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:09:27,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:09:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:09:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:09:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:09:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:09:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:09:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:09:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:09:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:09:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:09:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:27,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:09:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:09:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:09:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 03:09:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:09:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 03:09:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:09:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:09:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 03:09:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:09:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:09:28,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:09:28,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003845841] [2023-04-02 03:09:28,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003845841] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:09:28,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338192875] [2023-04-02 03:09:28,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:09:28,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:09:28,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:09:28,069 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:09:28,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 03:09:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:28,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 2771 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-02 03:09:28,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:09:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:09:28,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:09:28,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338192875] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:09:28,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:09:28,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2023-04-02 03:09:28,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661284355] [2023-04-02 03:09:28,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:09:28,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 03:09:28,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:09:28,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 03:09:28,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2023-04-02 03:09:28,572 INFO L87 Difference]: Start difference. First operand 13625 states and 23164 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:09:34,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:09:34,389 INFO L93 Difference]: Finished difference Result 25556 states and 43543 transitions. [2023-04-02 03:09:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 03:09:34,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 152 [2023-04-02 03:09:34,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:09:34,440 INFO L225 Difference]: With dead ends: 25556 [2023-04-02 03:09:34,441 INFO L226 Difference]: Without dead ends: 11965 [2023-04-02 03:09:34,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2023-04-02 03:09:34,478 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 748 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:09:34,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 3742 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 03:09:34,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2023-04-02 03:09:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 11955. [2023-04-02 03:09:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11955 states, 8262 states have (on average 1.5534979423868314) internal successors, (12835), 8862 states have internal predecessors, (12835), 2782 states have call successors, (2782), 668 states have call predecessors, (2782), 910 states have return successors, (4521), 2864 states have call predecessors, (4521), 2769 states have call successors, (4521) [2023-04-02 03:09:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11955 states to 11955 states and 20138 transitions. [2023-04-02 03:09:39,548 INFO L78 Accepts]: Start accepts. Automaton has 11955 states and 20138 transitions. Word has length 152 [2023-04-02 03:09:39,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:09:39,549 INFO L495 AbstractCegarLoop]: Abstraction has 11955 states and 20138 transitions. [2023-04-02 03:09:39,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:09:39,549 INFO L276 IsEmpty]: Start isEmpty. Operand 11955 states and 20138 transitions. [2023-04-02 03:09:39,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 03:09:39,552 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:09:39,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:09:39,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-02 03:09:39,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:09:39,753 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:09:39,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:09:39,754 INFO L85 PathProgramCache]: Analyzing trace with hash -251404624, now seen corresponding path program 1 times [2023-04-02 03:09:39,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:09:39,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277890186] [2023-04-02 03:09:39,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:09:39,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:09:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:09:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:09:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:09:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:09:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:09:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:09:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:09:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:09:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:09:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:09:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:09:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:09:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 03:09:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 03:09:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:09:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 03:09:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:09:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:09:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:09:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 03:09:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 03:09:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:09:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:09:40,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:09:40,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277890186] [2023-04-02 03:09:40,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277890186] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:09:40,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:09:40,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:09:40,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805716423] [2023-04-02 03:09:40,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:09:40,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:09:40,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:09:40,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:09:40,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:09:40,295 INFO L87 Difference]: Start difference. First operand 11955 states and 20138 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (32), 9 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 03:10:16,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:10:16,986 INFO L93 Difference]: Finished difference Result 44278 states and 85937 transitions. [2023-04-02 03:10:16,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-04-02 03:10:16,986 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (32), 9 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 160 [2023-04-02 03:10:16,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:10:17,187 INFO L225 Difference]: With dead ends: 44278 [2023-04-02 03:10:17,188 INFO L226 Difference]: Without dead ends: 32357 [2023-04-02 03:10:17,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=383, Invalid=1509, Unknown=0, NotChecked=0, Total=1892 [2023-04-02 03:10:17,248 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 5443 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 15686 mSolverCounterSat, 2613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5449 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 18299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2613 IncrementalHoareTripleChecker+Valid, 15686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:10:17,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5449 Valid, 1318 Invalid, 18299 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2613 Valid, 15686 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2023-04-02 03:10:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32357 states.